DUB - ORD

€427 Find Cheap Flights from Dublin to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to O'Hare Intl departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Chicago, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
€535
Typical prices: €432-€629
Delta
Fri 9/10Mon 12/10
DUB - ORD • 1 stop
Cheapest direct flights
€537
Typical prices: €669-€869
Aer Lingus
Tue 25/8Sat 29/8
DUB - ORD • Direct
Top airlines
Cheapest • from €535 (return)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Aer Lingus, American Airlines, and United Airlines. Average duration is 8h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 92% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg €504 (return)
Shortest trip • 11h 16m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dublin to O'Hare Intl (DUB-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dublin to O'Hare Intl

Fri, 9 Oct - Mon, 12 Oct
Delta Logo
10:00 - 16:49
DUB
-
ORD
12h 49m
1 stop
Delta Logo
17:45 - 15:25
ORD
-
DUB
15h 40m
2 stops
€535Delta
Wed, 26 Aug - Mon, 31 Aug
Multiple Airlines Logo
09:40 - 14:55
DUB
-
ORD
35h 15m
2 stops
Multiple Airlines Logo
12:30 - 13:15
ORD
-
DUB
18h 45m
3 stops
€536Multiple Airlines
Tue, 25 Aug - Sat, 29 Aug
Aer Lingus Logo
16:45 - 19:15
DUB
-
ORD
8h 30mdirect
Aer Lingus Logo
21:00 - 10:35
ORD
-
DUB
7h 35mdirect
€537Aer Lingus
Fri, 9 Oct - Mon, 12 Oct
KLM Logo
15:00 - 22:04
DUB
-
ORD
13h 04m
1 stop
KLM Logo
12:15 - 07:55
ORD
-
DUB
13h 40m
1 stop
€537KLM
Tue, 25 Aug - Sat, 29 Aug
Aer Lingus Logo
16:45 - 19:15
DUB
-
ORD
8h 30mdirect
Aer Lingus Logo
15:45 - 05:10
ORD
-
DUB
7h 25mdirect
€543Aer Lingus
Wed, 23 Sep - Fri, 2 Oct
United Airlines Logo
09:20 - 19:48
DUB
-
ORD
16h 28m
1 stop
United Airlines Logo
20:20 - 09:45
ORD
-
DUB
7h 25mdirect
€545United Airlines
Wed, 2 Sep - Sat, 5 Sep
JetBlue Logo
11:30 - 17:35
DUB
-
ORD
12h 05m
1 stop
JetBlue Logo
06:00 - 09:00
ORD
-
DUB
21h 00m
1 stop
€546JetBlue
Wed, 2 Sep - Wed, 9 Sep
United Airlines Logo
11:35 - 13:40
DUB
-
ORD
8h 05mdirect
United Airlines Logo
20:20 - 09:45
ORD
-
DUB
7h 25mdirect
€547United Airlines
Wed, 2 Sep - Sat, 5 Sep
JetBlue Logo
11:30 - 17:35
DUB
-
ORD
12h 05m
1 stop
JetBlue Logo
09:41 - 09:00
ORD
-
DUB
17h 19m
1 stop
€548JetBlue
Thu, 27 Aug - Thu, 3 Sep
United Airlines Logo
09:50 - 21:30
DUB
-
ORD
17h 40m
2 stops
United Airlines Logo
15:40 - 07:45
ORD
-
DUB
34h 05m
1 stop
€549United Airlines
Booking Insights

KAYAK's insights & trends for Dublin to O'Hare Intl flights

Get data-powered insights and trends into flights from Dublin to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Dublin to Chicago O'Hare Intl Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to Chicago O'Hare Intl Airport departing in October.

What’s the cheapest day of the week to fly from Dublin to Chicago O'Hare Airport?

The average price of all round-trip flights from Dublin to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Chicago O'Hare Airport on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Dublin to Chicago O'Hare Airport. For your return ticket, we recommend flying on a Thursday and avoiding Wednesdays for the best deals.

What is the cheapest month to fly from Dublin to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dublin to Chicago O'Hare Intl Airport is November, where tickets cost €418 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is €767 and €744 respectively.

Can I save money by flying with a stopover from Dublin to Chicago O'Hare Intl Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €700 on average.

How far in advance should I book a flight from Dublin to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dublin to Chicago O'Hare Intl Airport, you should book around 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight€427
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Dublin to Chicago O'Hare Airport

When to book flights from Dublin to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Dublin to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Dublin to O'Hare Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Dublin to O'Hare Intl 
JohannaFlew with Aer Lingus
DUB
-
ORD
Feb 2026
Are Ling’s was great, and boards from the back of the plane, which made boarding way less chaotic and much quicker.
Verified travelerFlew with Iberia
DUB
-
ORD
Sept 2024
Taking the coach bus to Dublin from Castlebar to departures was affordable and easy.
ConnerFlew with Aer Lingus
DUB
-
ORD
Sept 2024
You need almost 2 hours to be sure you will clear US pre clearance
Verified travelerFlew with Lufthansa
DUB
-
ORD
Aug 2024
Give yourself enough time to go through US Customs in Dublin.

FAQs for booking Dublin to Chicago O'Hare Airport flights

  • Which airlines fly directly to Chicago from Dublin International Airport (DUB)?

    If you are flying with Aer Lingus, then you can book a nonstop trip from Dublin to Chicago O’Hare International Airport. If you are flying with KLM, you can expect one layover in Amsterdam (AMS), and if you are flying with British Airways, you can expect a layover in London’s Heathrow (LHR).

  • Where can I charge my phone once I land in Chicago O'Hare International Airport?

    As you arrive at the airport, once you have collected your baggage but before you are processed by customs, you will see a charging station near gate m13. Make sure you have an adaptor, there should be plenty on sale at either the duty-free in Dublin or the one in O’Hare when you arrive.

  • Where can I get something to eat at O’Hare International Airport?

    Most international arrivals terminals have one or two restaurants as you arrive, however Chicago O'Hare Interanational Airport (ORD) offers a choice of several restaurants; from Chinese fusion to classic fast-food, you will have a variety of choices to get your first meal from when you arrive in O'Hare's terminal five.

  • What is the cheapest flight from Dublin to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Dublin to Chicago O'Hare Intl Airport was €428 for a one-way ticket and €535 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Dublin to Chicago O'Hare Airport?

    American Airlines, KLM, Air France, Delta, and Aer Lingus offer inflight Wi-Fi service on the Dublin to Chicago O'Hare Airport flight route.

  • Which aircraft models fly most regularly from Dublin to Chicago O'Hare Airport?

    The Airbus A330-300 is the aircraft model that flies most regularly on the Dublin to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Dublin to Chicago O'Hare Airport?

    Star Alliance, and oneworld are the airline alliances operating flights between Dublin and Chicago O'Hare Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Dublin to Chicago O'Hare Airport?

    There are direct flights from Dublin to Chicago O'Hare Airport on a daily basis.

  • Which is the best airline for flights from Dublin to Chicago, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from Dublin to Chicago are Finnair and United Airlines. With an average price for the route of €702 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of €650 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Dublin to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dublin to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Dublin is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Dublin with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for €772 or less one-way and €664 or less round-trip.
  • If you’re wanting to get straight to the centre of the city from Chicago O'Hare International Airport (ORD), then a good idea would be to take Chicago’s blue line subway, travellers from the airport get a discount from the airport as well. The subway trip should cost around $5 (€4).
  • If you're wanting to get to the terminal from the car park easily and want ease of access when you come back to Dublin International Airport (DUB), you can use the Platinum Service that is available at Dublin International. The Platinum Service offers a range of features like Fastrack and access to airport lounges. It also offers you private parking spaces at the airport. The lowest price comes in at around €255 for a full package, with parking costing around €40 a day.
  • If you are travelling with small children, Chicago O'Hare International Airport should have prams available for rent. The airport will not charge you for use of the prams if you are able to produce either a boarding pass or another form of verification that you are an airport customer.

Prefer to fly direct from Dublin to Chicago O'Hare Intl?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from Dublin to Chicago O'Hare Intl.
Find which airlines fly direct from Dublin Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Dublin to Chicago O'Hare Intl

Monday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Tuesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Wednesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Thursday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Friday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Saturday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Sunday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

See more direct flights

Direct returns

Chicago O'Hare Intl to Dublin

Monday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Tuesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Wednesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Thursday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Friday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Saturday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Sunday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

See more direct flights

Reviews of the top 4 airlines flying from Dublin to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1415 reviews
6.9Entertainment
6.7Food
7.7Boarding
8.2Crew
7.4Comfort
Airline reviews

Late, dirty cabin, charging ports broken, uncomfortable, no tomato juice, barely edible food

4.0 OkayAnonymous, Jun 2026
HEL - LAX
Read more Finnair reviews

Late, dirty cabin, charging ports broken, uncomfortable, no tomato juice, barely edible food

Flight on time, landed well ahead of schedule. Attendants were excellent and responsive

The crew was friendly, and the flight landed on time

Rude Iberia security crew at the Madrid terminal. No Iberia officials to be found to redress complaints at the gate. No supervisors. Nothing for processing upgrades at the gate Iberia app did not work to let me upgrade my options to higher classes. No water was offered on a hot day in Madrid. Madrid airport air conditioning was so weak that people were sweating. Never book on any airlines that codeshare with Iberia.

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Flight were delayed which made me miss all the other flights. Bags are still missing from 2 weeks ago. This airline is worse the Spirit Airlines!

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

I flew from Barcelona to Chicago on UA yesterday. The flight was on time, the pilots did a great job and the flight attendants were super nice. All of them. Also food was good, and the drinks, including wine were served a few times during our flight. I highly recommend this airline.

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

From Rome to Dublin if you want any refreshments you have to pay for them, Not used to this as we typically get soft drinks and a little snack on a 3hour flight in the US.

Small plane. Tight seating . What can one say except that it was fast!

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

I like Aer Lingus so that is why I’m writing this critique so they can become better. The boarding gate was too small to board properly. Our seats were toward the back of the plane knowing we would be boarding after business class, we moved to that area after business class boarded. An Aer Lingus employee told us we couldn’t stand there. We explained we were the next group to board and wouldn’t even be able to hear when our boarding was called. She didn’t care and was not very professional. The cabin was freezing. I wouldn’t feed my dog the food. We were over an hour late coming into chicago because of weather which can’t be avoided. I asked the crew if they could make an annoucement for before whose final destination is chicago to wait and allow the people with connecting to deplane first. He said there are a lot of people with connecting flights. He said, it doesn’t matter. Well, yes it does. He could have been more considerate of his passengers.

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Very efficient boarding and quick flight. Attendants don’t come by often so would often have a lot of trash at seat.

The flight de-boarded after being informed of a 3 hour delay. The gate agent said we could go to lounge. The flight ended up boarding 20 minutes later and I missed it.

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight from LA to Chicago was smooth and service was very good overall.

The flight was uneventful, which is always good. The plane was clean and seem to have a little bit more room. They fed us every couple hours, and we had a lot of in-flight entertainment. The staff was very helpful and attentive.

Everything you need to know for your flight from Dublin to O'Hare Intl

Information on your arrival and departure airports