ORD

€357 Find Cheap Flights to Chicago O'Hare Airport – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
€357
Typical prices: €549-€777
Icelandair
Mon 12/11Thu 15/11
DUB - ORD • 1 stop
Cheapest direct flights
€537
Typical prices: €560-€797
Aer Lingus
Sat 13/1Fri 9/2
DUB - ORD • Direct
Direct flights
You can fly direct with Aer Lingus and United Airlines. Average duration is 8h 33m
FAQs
FAQs
Top airlines
Most flights • 14 per week
Best reviews • 7.6 score
Airline reviews
+1
Airline reviews
+1
Top routes
Cheapest • 8% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 20 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
+1
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 enjoy your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to O'Hare Intl

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to O'Hare Intl

Thu, 12 Nov - Sun, 15 Nov
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
€357Icelandair
Fri, 13 Nov - Sun, 15 Nov
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
18:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
€357Icelandair
Tue, 9 Mar - Wed, 24 Mar
Icelandair Logo
11:30 - 17:20DUB  Dublin-ORD Chicago O'Hare Intl
11h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:30 - 10:15ORD  Chicago O'Hare Intl-DUB Dublin
9h 45m1 stop Reykjavik Keflavik Intl
€368Icelandair
Mon, 16 Nov - Mon, 23 Nov
Lufthansa Logo
05:10 - 20:05DUB  Dublin-ORD Chicago O'Hare Intl
20h 55m1 stop Frankfurt am Main
Lufthansa Logo
16:20 - 16:30ORD  Chicago O'Hare Intl-DUB Dublin
18h 10m1 stop Frankfurt am Main
€531Lufthansa
Mon, 2 Nov - Sun, 8 Nov
Lufthansa Logo
09:10 - 20:05DUB  Dublin-ORD Chicago O'Hare Intl
16h 55m1 stop Frankfurt am Main
Lufthansa Logo
16:20 - 11:00ORD  Chicago O'Hare Intl-DUB Dublin
12h 40m1 stop Frankfurt am Main
€532Lufthansa
Thu, 3 Dec - Sun, 6 Dec
Lufthansa Logo
05:10 - 13:10DUB  Dublin-ORD Chicago O'Hare Intl
14h 00m1 stop Frankfurt am Main
Lufthansa Logo
16:20 - 16:30ORD  Chicago O'Hare Intl-DUB Dublin
18h 10m1 stop Frankfurt am Main
€534Lufthansa
Wed, 13 Jan - Tue, 9 Feb
Aer Lingus Logo
16:40 - 19:15DUB  Dublin-ORD Chicago O'Hare Intl
8h 35mdirect
Aer Lingus Logo
21:00 - 10:25ORD  Chicago O'Hare Intl-DUB Dublin
7h 25mdirect
€537Aer Lingus
Sat, 13 Mar - Tue, 23 Mar
United Airlines Logo
13:35 - 22:58DUB  Dublin-ORD Chicago O'Hare Intl
15h 23m1 stop Newark
United Airlines Logo
13:30 - 07:30ORD  Chicago O'Hare Intl-DUB Dublin
13h 00m1 stop Newark
€551United Airlines
Sun, 14 Mar - Tue, 23 Mar
United Airlines Logo
09:30 - 16:37DUB  Dublin-ORD Chicago O'Hare Intl
12h 07m1 stop Newark
United Airlines Logo
19:35 - 08:10ORD  Chicago O'Hare Intl-DUB Dublin
7h 35mdirect
€567United Airlines
Sat, 14 Nov - Tue, 1 Dec
Aer Lingus Logo
11:30 - 14:10DUB  Dublin-ORD Chicago O'Hare Intl
8h 40mdirect
Aer Lingus Logo
15:55 - 05:15ORD  Chicago O'Hare Intl-DUB Dublin
7h 20mdirect
€567Aer Lingus
Booking Insights

Price, demand, and travel trends for flights to Chicago O'Hare Intl Airport

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

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

Dublin to Chicago O'Hare Intl Airport is the cheapest route at €357 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

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

On average, a return flight from Ireland to Chicago O'Hare Intl Airport costs €647, based on KAYAK data over the past 12 months. Return fares from Cork average €609, while Dublin runs a bit higher at €611.

What is the cheapest day to fly to Chicago O'Hare Intl Airport?

Sunday is the cheapest day to fly to Chicago O'Hare Intl Airport at €627 return on average over the past 12 months on KAYAK. Monday is the most expensive at €700.

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

•November is the cheapest month to fly to Chicago O'Hare Intl Airport with an average price of €487 return.
•August (€782) and July (€751) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

Evening flights to Chicago O'Hare Intl Airport are the cheapest at €506 return on average. Morning flights are the most expensive at €662.

What is a good deal for flights to Chicago O'Hare Intl Airport?

Flights under €549 are considered a good deal. 25% of KAYAK users found return flights to Chicago O'Hare Intl Airport at or below these prices, with the lowest fares from:
•Dublin €514
•Cork €543.

When are flights to Chicago O'Hare Intl Airport the cheapest?

Flights to Chicago O'Hare Intl Airport are cheapest 20 weeks before departure. Booking in this window typically costs about 23% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to Chicago O'Hare Intl Airport

Low season

February

Cheapest flight

€357
Beat the crowds with an average 46% drop in traveller numbers.
The most popular month to fly with an average 27% increase in traveller numbers.
Round-trip flight from Dublin to Chicago O'Hare Intl Airport

When to book flights to O'Hare Intl

Are your dates flexible? Find out the best times to travel 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

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

Insights shared by verified travellers who flew to O'Hare Intl 
Verified travelerFlew with Aer Lingus-Sept 2026
Get there early enough to be able to relax and shop a bit
JohannaFlew with Aer Lingus-Feb 2026
Are Ling’s was great, and boards from the back of the plane, which made boarding way less chaotic and much quicker.

Your questions about flights to Chicago O'Hare Intl Airport, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Chicago O'Hare Intl Airport is a good deal?

    A good deal on a flight to Chicago O'Hare Intl Airport is around €549 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How long is a direct flight to Chicago O'Hare Intl Airport?

    Direct flights to Chicago O'Hare Intl Airport are available from Dublin, with a flight time of about 8h 05m.

  • How expensive are last-minute flights to Chicago O'Hare Intl Airport?

    Last-minute fares to Chicago O'Hare Intl Airport (booked within two weeks of departure) are typically 9% higher than the average return fare of €647.

  • What is the difference between the most popular and the most frequent airline at Chicago O'Hare Intl Airport?

    Aer Lingus operates the most flights from Ireland to Chicago O'Hare Intl Airport at 14 per week, and for this route Aer Lingus is also the airline most often selected by KAYAK users searching for flights from Ireland to Chicago O'Hare Intl Airport. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airlines should I consider for flights to Chicago O'Hare Intl Airport?

  • How many flights serve Chicago O'Hare Intl Airport?

    Chicago O'Hare Intl Airport receives 3 flights per day and 21 per week from across the world. Dublin has the most flights to Chicago O'Hare Intl Airport with 21 weekly flights.

  • Which airports serve Chicago and the surrounding area?

    Flights to Chicago can arrive at several major airports serving the metro area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Nearby alternatives within 80.5 km of Chicago include Chicago Midway (MDW). This airport is not in Chicago itself but may be useful depending on your route, airline, and onward travel plans.

Your guide to booking Chicago O'Hare Intl Airport flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Chicago O'Hare Intl Airport, book around 20 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 23% lower during this window than last-minute fares.
  • For flights to Chicago O'Hare Intl Airport, a good return fare is around €549. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Chicago O'Hare Intl Airport in November. Return fares historically average €487, making November the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to afternoon to save up to €156 on a return flight. Afternoon flights to Chicago O'Hare Intl Airport average €506 compared to €662 for morning flights.
  • Bag allowances vary by airline, fare type, cabin class, and route. On flights to Chicago O'Hare Intl Airport, some airlines may include bags at no extra cost. For example, Aer Lingus includes a cabin bag and a checked bag in Economy class, United Airlines includes a cabin bag and a checked bag in Economy class, and American Airlines includes a cabin bag and a checked bag in Economy class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Once you arrive in Chicago O'Hare Intl Airport, a few great places to start are Magnificent Mile, McCormick Place, and Grant Park. These are popular with first-time visitors and can give you a good feel for the area.

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

 
Need help choosing which airline to fly with 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 1428 reviews
7.4Comfort
8.2Crew
7.6Boarding
6.9Entertainment
6.7Food
Airline reviews

Business class should have free wi-fi. Food was horrible

4.0 OkayAnonymous, Sept 2026
Read more Finnair reviews

Business class should have free wi-fi. Food was horrible

Will never fly American Airlines business class again. Medicore service and very old aircraft.

Staff went above and beyond with their care for us. Flight attendants were very attentive to our needs. Food seemed too rich and too salty. Flight was fine, even with turbulence at points.

It all went very smoothly, love the new planes and cabin crew upbeat and friendly Food ok, but that is the hardest part of it all

Finnair was ok. But some things were pretty bad: 1. Crew was not friendly, especially a crew member named, Maria. She woke me up while I was deep asleep by force just to let me know that 2 people can’t be on the same seat (my toddler and me) for sleeping. 2. There was no vegetarian option in the menu so I had to eat bread for one meal 3. They didn’t have an option for child meal

The food was delicious. There has been a major improvement here in the last few years. Excellent, friendly service. An enjoyable experience.

Awful. Delayed for unknown reason. Boarded late, part of a Tight connection ands had to go through customs and immigration. And they lost my bags.

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

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

We were delay because so many bags needed to be gate checked and it was disappointing not to have outlets in the seats for such a long flight.

Raleigh to Chicago was OK. The problem was Chicago to Lincoln. Flight was delayed 4 hours. Give them credit for the updates and reason why it was delayed

Comfortable seats and good crew. There should be some breakfast options in menu for economy class to purchase Wifi was not working in the flight

On time. Accommodated carry on and personal bag in the plane. Good entertainment available and access without using own device. Gave a whole can of juice rather than a pour. Seat did not recline much.

Good, our flight was delayed but that was totally out of their control due to weather and a presidential visit.

The price. Omg $1100. Was crazy and it was not clear on the website.

Excellent. I had a medical emergency on flight SNA-ORD and the attendants were very helpful.

After having bad experience last time This time they were very good

Usual wait for over a half hour for a gate at Ohare. They tell you you'll get there early then sit on the plane and wait almost an hour

Plane congestion resulted in a 1 hr wait from landing to arrival at the gate. This was in addition to also experiencing extreme delays on my incoming flight.

The plane from Venice to Dublin ran out of food. They did not restock the plane in Venice.

The crew was first rate. They allowed me to switch my middle seat to an isle seat and it made my flight home so much more comfortable.

Very comfortable flight. Great service, food options, and entertainment options. With Wi-Fi!

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.

roomiest flight in economy I've taken in years. Excellent experience!

I was booked to travel from Dallas to Nairobi via Chicago and Brussels and had been issued boarding passes for all three segments of my journey. At the boarding gate in Dallas, I was required to check my carry-on luggage due to limited cabin space. Despite my attempts to explain that I was traveling internationally and would not have access to the bag during transit, my concerns were not considered. I also informed the staff that I did not have a padlock to secure the luggage, but this was disregarded. Consequently, I had to hastily transfer essential items from my carry-on into my handbag. To my surprise, upon arriving at Chicago Airport, I observed numerous international travelers boarding with cabin bags that were significantly larger than mine. This experience left me extremely disappointed and led me to decide against using United Airlines for future international travel, a sentiment I have also shared with friends and family. Unfortunately, the onboard experience on the Chicago to Brussels flight further reinforced my dissatisfaction. The cabin crew appeared disengaged, indifferent, and lacking in attentiveness, resulting in a service experience that fell well below my expectations.

I want to highlight the crew members and their excellent work and professionalism. They work hard to make a long trip the most comfortable as possible, the food and drinks they offer are pretty good. And they are always asking if you need something else. I have had experiences with other airlines where you have to basically beg for a bottle of water. This is not the case. Highly recommended!!!

the blanket was great and pillow helped. really need a toothpick packed with meals

Very comfortable plane. The food was very good (for airplane food). The crew was great

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

Very good. Comfortable and I felt well taken care of from start to finish

Travelling to a place near O'Hare Intl?

Book flights to O'Hare Intl if you plan to visit one of these locations
Valparaiso
Schaumburg
Crown Point
Rosemont
Joliet
Aurora
Lansing
Lisle
Oak Brook
Elgin
Tinley Park
Lake Geneva
Vernon Hills
Naperville
New Buffalo
Wheeling
Bolingbrook
Arlington Heights
Orland Park
Benton Harbor

More options for your flight to O'Hare Intl