€277 Find Cheap Flights from Dublin to Illinois

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 Illinois departing on 30/6. 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 Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Illinois.
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Flight Deals

Best Illinois Flight Deals from Dublin

Cheapest return prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop€523
St. Louis
St. Louis2 stops€767
Chicago
Chicago1 stop€523
St. Louis
St. Louis2 stops€767

Cheap Flights from Dublin to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin to Illinois 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 Illinois

Sat, 24 Oct - Sat, 7 Nov
British Airways Logo
06:30 - 12:30
DUB
-
ORD
12h 00m
1 stop
British Airways Logo
17:10 - 09:50
ORD
-
DUB
10h 40m
1 stop
€523British Airways
Thu, 21 May - Sat, 30 May
Finnair Logo
09:30 - 11:30
DUB
-
ORD
8h 00mdirect
Finnair Logo
11:50 - 09:45
ORD
-
DUB
15h 55m
1 stop
€525Finnair
Thu, 2 Jul - Sat, 11 Jul
JetBlue Logo
11:30 - 21:30
DUB
-
ORD
16h 00m
1 stop
JetBlue Logo
13:55 - 08:20
ORD
-
DUB
12h 25m
1 stop
€526JetBlue
Sun, 21 Jun - Thu, 2 Jul
JetBlue Logo
11:30 - 21:29
DUB
-
ORD
15h 59m
1 stop
JetBlue Logo
20:20 - 08:20
ORD
-
DUB
30h 00m
1 stop
€527JetBlue
Tue, 19 May - Sat, 23 May
Multiple Airlines Logo
12:00 - 17:56
DUB
-
MDW
11h 56m
1 stop
Multiple Airlines Logo
19:13 - 07:55
MDW
-
DUB
30h 42m
1 stop
€538Multiple Airlines
Tue, 23 Jun - Mon, 29 Jun
Multiple Airlines Logo
09:30 - 11:29
DUB
-
ORD
7h 59mdirect
Multiple Airlines Logo
22:30 - 18:40
ORD
-
DUB
14h 10m
1 stop
€540Multiple Airlines
Thu, 25 Jun - Sat, 4 Jul
Delta Logo
08:55 - 18:18
DUB
-
MDW
15h 23m
2 stops
Delta Logo
17:50 - 15:25
MDW
-
DUB
15h 35m
2 stops
€589Delta
Wed, 24 Jun - Sat, 4 Jul
Delta Logo
05:55 - 18:31
DUB
-
MDW
18h 36m
2 stops
Delta Logo
17:50 - 15:25
MDW
-
DUB
15h 35m
2 stops
€590Delta
Wed, 20 May - Wed, 10 Jun
KLM Logo
10:00 - 18:33
DUB
-
MDW
14h 33m
1 stop
KLM Logo
13:49 - 07:55
MDW
-
DUB
12h 06m
1 stop
€600KLM
Wed, 24 Jun - Sat, 4 Jul
KLM Logo
10:00 - 18:31
DUB
-
MDW
14h 31m
1 stop
KLM Logo
13:21 - 10:00
MDW
-
DUB
14h 39m
1 stop
€601KLM
Booking Insights

KAYAK's insights & trends for Dublin to Illinois flights

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

How much is a return flight from Dublin to Illinois?

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 Illinois departing in October.

What is the cheapest Dublin to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Dublin found in the last 72 hours was to Chicago, at €503 return. The most popular route is from Dublin (DUB) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €503.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Dublin to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when retur flights cost €595 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €712.

Can I save money by flying with a stopover from Dublin to Illinois?

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 €682 on average.

What is the cheapest month to fly from Dublin to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Illinois, 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 Illinois is September, when tickets cost €233 (return) on average. On the other hand, the most expensive months are July and April, when the average cost of return tickets is €448 and €408 respectively.

What’s the cheapest day of the week to fly from Dublin to Illinois?

The average price of all round-trip flights from Dublin to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois 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 Illinois. For your return ticket, we recommend flying on a Thursday and avoiding Wednesdays for the best deals.

How far in advance should I book a flight from Dublin to Illinois?

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 Illinois, 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 a flight from Dublin to Illinois, you should book around 3 weeks before departure, which saves you about 31% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€277
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Dublin to Chicago O'Hare Airport

Flights from Dublin to Illinois: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Dublin to Illinois 
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 - booking Illinois flights

  • How does KAYAK find such low prices on flights from Dublin to Illinois?

    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 Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Dublin to Illinois 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 Illinois?

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

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

    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 from Dublin to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Dublin to the following destinations at these prices or less: Chicago €558 one-way - €567 round-trip

Reviews of the top 5 airlines flying from Dublin to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Illinois. 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 Illinois? 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 1392 reviews
6.7Food
8.2Crew
6.9Entertainment
7.4Comfort
7.7Boarding
Airline reviews

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.

2.0 MediocreShiva, Apr 2026
MAD - EWR
Read more Finnair reviews

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.

On a more than 8 hours flight was only one meal included, which I have never experienced before. Always two meals on the overseas flight. It was very weird.

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

Positive: It was refreshingly easy and polite check-in and boarding staff. Flight was on time and Helsinki is a very well-signposted airport. Shopping was nice as well. Flight was not full and I had lots of space in economy. Flight was perfectly on time. Negative: Food and drink not very good, but that it is normal on any airline. Didn't expect anything else.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

Very good seat, very comfortable, good food, and good service.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

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.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

On time, only a little turbulence, very competent and caring attendants. Clear information.

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.

On a four hour delayed flight now on seats back end of the plane instead front-

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

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.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Didn't make it back on American Airlines due to a maintenance issue. The communication and updates were terrible. I ended up returning on Aero Mexico which had a much nicer aircraft with a large entertainment screen with movies and shows AND they had a nice inflight meal. That was a treat after being delayed 26 hours! I think some additional flight miles, or something should be offered for that long of a delay ---it was not pleasant at all---very physical and emotional experience.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

When you consider the price I ended up paying for everything. This was not a good deal! I had no idea that this airline had changed to a bargain basement no frills airline. So, it was disappointing to have to pay for every little thing. The only thing included was water and coffee. You have to pay for everything else! So I just felt nickel and dime.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

The most uncomfortable seat i’ve ever had on a flight

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

Everything you need to know for your flight from Dublin to Illinois

Information on your arrival and departure airports