€301 Find cheap flights to Chicago

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Chicago departing on 16/1. 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.
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Search hundreds of travel sites at once for deals on flights to Chicago

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
In the last 7 days, travellers have searched 44,234,009 times on KAYAK, and here's why:

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Cheap flight deals to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Chicago 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.

Recent return flight deals to Chicago

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ireland to Chicago.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:30 - 17:20DUB-ORD
11h 50m1 stop
18:30 - 10:15ORD-DUB
9h 45m1 stop
€301Icelandair
Find Deal
Thu, 16 Jan - Thu, 23 Jan
12:30 - 15:50DUB-ORD
33h 20m1 stop
19:40 - 09:25ORD-DUB
31h 45m1 stop
€312Scandinavian Airlines
Find Deal
Thu, 16 Jan - Thu, 23 Jan
11:30 - 14:00DUB-ORD
8h 30mdirect
15:55 - 05:15ORD-DUB
7h 20mdirect
€387Aer Lingus
Find Deal
Thu, 12 Dec - Fri, 27 Dec
11:30 - 14:00DUB-ORD
8h 30mdirect
15:55 - 05:15ORD-DUB
7h 20mdirect
€391Aer Lingus
Find Deal
Thu, 12 Dec - Fri, 27 Dec
17:55 - 13:55DUB-ORD
26h 00m1 stop
17:00 - 09:50ORD-DUB
10h 50m1 stop
€398British Airways
Find Deal
Tue, 24 Dec - Mon, 13 Jan
14:05 - 00:09DUB-ORD
16h 04m2 stops
17:20 - 08:40ORD-DUB
9h 20m1 stop
€403British Airways
Find Deal
Tue, 14 Jan - Thu, 23 Jan
09:00 - 14:51DUB-ORD
11h 51m1 stop
11:51 - 07:00ORD-DUB
13h 09m1 stop
€452United Airlines
Find Deal
Fri, 17 Jan - Thu, 30 Jan
11:50 - 23:09DUB-ORD
17h 19m2 stops
14:00 - 10:05ORD-DUB
14h 05m2 stops
€471United Airlines
Find Deal
Sat, 1 Mar - Wed, 5 Mar
14:05 - 20:04DUB-ORD
11h 59m1 stop
15:55 - 05:15ORD-DUB
7h 20mdirect
€599Iberia
Find Deal
Thu, 12 Dec - Fri, 27 Dec
10:55 - 14:30DUB-ORD
33h 35m1 stop
16:45 - 10:15ORD-DUB
11h 30m1 stop
€733Iberia
Find Deal
Sun, 15 Dec - Sun, 22 Dec

Flights to Chicago - Travel Insights & Trends

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

What is the cheapest flight to Chicago?

These are the best prices found by users searching on KAYAK in the last 72 hours.
If travelling to Chicago, the cheapest city to fly from in the last 3 days was Dublin, with flights as low as €304 one-way and €285 return. Flights from Shannon are the most searched and start at $198 for a return trip.

How much is a flight to Chicago?

The average and cheapest price for all flights to Chicago from each origin found by users searching on KAYAK in the last month.
On average, a flight to Chicago costs €733. The cheapest price found on KAYAK in the last 2 weeks cost €400 and departed from Dublin. The most popular routes on KAYAK are Dublin to Chicago which costs €725 on average, and Shannon to Chicago, which costs €862 on average.
See prices from:

What is the cheapest day to fly to Chicago?

The average price of all flights to Chicago clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Chicago is Friday where tickets can be as cheap as €512. On the other hand, the most expensive day to fly is Sunday, where prices are €591 on average.

What is the cheapest month to fly to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Chicago, 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 to Chicago is November, where tickets cost €412 on average for one-way flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Ireland is €719 and €670 respectively. For return trips, the best month to travel is November with an average price of €412.

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

The average price for all flights to Chicago depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Chicago is generally in the evening, when flights cost €490 on average. The most expensive time of day to fly to Chicago is generally in the morning, which is peak travel time and where the average cost of a ticket is €569.

What is a good deal for flights to Chicago?

If you’re looking for cheap airfare to Chicago, 25% of our users found tickets to Chicago for the following prices or less: From Dublin €460 one-way - €606 return.

How far in advance should I book a flight to Chicago?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Chicago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 74 days before departure.

Which is the cheapest airport to fly into in Chicago?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Chicago is Chicago O'Hare Intl Airport, with an average flight price of €657.

Good to know

Low season

January

High season

July

Cheapest flight

€301
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from Dublin to Chicago O'Hare Airport

When to book flights to Chicago

Are your dates flexible? Find out the best times to travel to Chicago 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. The information is for flights to Chicago based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Chicago flights

  • What is the cheapest flight to Chicago?

    If travelling to Chicago, the cheapest city to fly from in the last 3 days was Dublin, with flights as low as €304 one-way and €285 return. Flights from Shannon are the most searched and start at $198 for a return trip.

  • Which Chicago airport is closest to central Chicago?

    The distance between Chicago Midway Airport and the city centre of Chicago is 14 km, which makes it the closest of the 3 Chicago airports airports. Chicago O'Hare Airport is 26 km away from the centre and Chicago Greater Rockford is 126 km away.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs €733. The cheapest price found on KAYAK in the last 2 weeks cost €400 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Chicago?

    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 to Chicago.

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

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

  • What is the Hacker Fare option on flights to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago 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 to Chicago?

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

  • How many direct flights to Chicago are there each week?

    Each week there are around 14 direct flights from within Ireland to Chicago. The most common day for departures is Wednesday, with 14% of flights taking off on this day.

See more FAQs

Top tips for finding cheap flights to Chicago

  • Looking for a cheap flight? 25% of our users found flights on this route for €460 or less one-way and €606 or less round-trip.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly from Ireland is September.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.
See more tips

Prefer to fly direct to Chicago?

Find which airlines fly direct to Chicago, which days they fly and book direct flights.

Direct departures

Ireland to Chicago

Monday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Tuesday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Wednesday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Thursday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Friday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +74 more

ANA, Aer Lingus, +75 more

Sunday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

See more direct flights

Direct returns

Chicago to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Tuesday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Wednesday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Thursday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Friday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +74 more

ANA, Aer Lingus, +75 more

Sunday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

See more direct flights
See more direct flights

Top 5 airlines flying to Chicago

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Chicago? 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.
7.4
United AirlinesOverall score based on 9141 reviews
7.7Boarding
6.7Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Cramped seats. Audio jack for the in -flight entertainment was broken.

6.0 GoodAnonymous, Nov 2024YVR - ORD
Read more United Airlines reviews

Cramped seats. Audio jack for the in -flight entertainment was broken.

Flight was great albeit the long line before the int’l immigration given the timing of the year.

They canceled our flight and left us stranded to figure it out

We appreciated the friendly, efficient, and professional flight attendants. A wider selection of hot foods would be nice.

Did not have enough time from Venice seaport at Ravenna to get to Venice airport in order to make the scheduled flights. Need to have at least 3+ hours from ship docking to airport.

Everything was very good. Was able to change a make run flight leaving on direct earlier in the app -seamless!!! Well done

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

The seats on the aircraft are like sitting in a rock. During the boarding process they recognize Active Duty Military, why don’t they recognize Retired Military. I’ve always preferred Delta, this flight confirmed why I still prefer Delta.

The plane used to go to Chicago was a bit outdated and needed a refresh

Had a screaming child next to us. Not the airline’s fault but still annoying.

Highly disorganized company, poor customer service. Packed seats on a 737 for a trans-atlantic 9 hour flight. Greedy company policies, no meal or snack provided for 9 hour flight.

Icelandair flight was excellent. The checkin and security arrangements for Saga Premium passengers at Newark was very poor - our checkin opened much later than the normal and our security queue simply led us to the back of the normal queue. Someone was having a laugh surely!

Never took flight. See previous comment on trip from Boston to Reykjavik. Used a different airline that i had to find and book.

The flight was on time and the crew was nice. I did not like the fact that my husband and I were seated in different rows. I feel pressured by airlines to pay more to choose our seats. We will sit anywhere, but we shouldn't have to pay to sit together. I also think they should serve at least a snack that's free.

One of the worst airlines I ever flew. Boarding is a disaster, they are always late, the planes are overly crowded. Everyone on my flight lost their connection because they were 2h late. Reykjavik is also not the best airport out there.

Been travelling for 2mo. And when you meet flight Attendants that love their jobs you can just tell. And makes flying with them worth another flight in the future!!

Everything was great! My only critique is 25 euro for wifi is wild, but I get it

Good, but I feel there should be a separate boarding line for seniors

Easy check in and boarding. Staff pleasant and helpful. Will continue to fly with Iceland air. Aircraft clean

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

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

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Was very unhappy with the entire process, from check in to boarding to the comfort of the flight. Did not enjoy the flight on Level.

Overall a great. However, the seating is way too narrow, for guys with any shoulder width. Luckily the crew moved the guy next to me, or it would have been miserable.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

The flight was decent. I purchased my flight through Iberia, traveling with my elderly mother with mobility issues. I try to pay for luggage and seats online prior but Iberia website directs me to AA website. AA airlines website does not recognize the record locator. My mother and I are separated and each get a middle seat. She is seated the furthest away from a bathroom. I had to sit behind her to see her wave at me to use the bathroom. Lights out on the flight and I could not see her wave and she is not tech savvy to push an attendant button even though I showed her how. The attention to this detail puts AA at the bottom of my list when traveling with my elderly mother. Bad execution and handling when servicing those with extra needs due to mobility. I could not get her to the bathroom because she’s slow and she had to wait for me to get up from my middle seat then move her out of her middle seat. She had an accident which required that I hel her clean up before taking her back to her seat.

The flight staff was excellent, one of the best I've had. Food and wine was very good and seats very comfortable. Luggage came out pretty quickly too considering the number of passengers. Also, excellent internet. The only thing that could have been improved on was the choice of movies -- kind of limited and not great selections.

The plane was not well maintained. The entertainment system didn’t work properly, eg moving map. Many of the seat controls did not work. Cabin temperature fluctuated considerably during the flight. The seat allocated was poor, it was noisy and offered no privacy. The perfume in the toilet triggered severe allergies. Crew was very goid.

Seats are too tight. Small space for long flights very inconvenient.

The flight was delayed over 3 hours and at the gate, we waited for an hour to start boarding. The gate lack of communication with the passengers was atrocious and when asked they even said they didn't work there and were just standing in for someone else so they couldn't give us an information about the flight status. The crew did not offer blankets, pillows nor headphones.

I originally chose two aisle seats for my daughter and myself in the same row. We got seated in the middle, three rows apart. Both of the men sitting in front of us reclined their seats fully leaving us NO room. A totally uncomfortable flight for eleven hours.

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

I could not charge my phone the entire night or read my book, as the whole middle isle was without power.

I will fly again with American airlines. It's efficient to get from A to B point, not too long layovers . Flights were on time, but box food on the long distance flight was dry, stale overcooked.

British Airways did a great job and the entire crew was punctual and polite; dignified and delightful!

Flight was fine, food better than anticipated and flight attendants were helpful and friendly.

Our headphone plug is broken, we can not enjoy our entertainment, especially traveling with 5 year old who like to watch movie

It was good but I wished if they could have sign do not disturb if we did not wanted any meals . I was tired and slept through the entire flight and woke up just before landing .being hungry Too late to ask for something to eat before exiting the flight . Left feeling hunger 🙁

Pleasant, attentive and efficient flight attendants. Boarding process and seat selection easy. No internet on transatlantic flight. Extremely uncomfortable, rigid seat.

Book Cheap Chicago Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Chicago found on KAYAK in the last 72 hours.
16/1Thu
1 stopIcelandair
11h 50mDUB-ORD
23/1Thu
1 stopIcelandair
9h 45mORD-DUB
€301
16/1Thu
1 stopScandinavian Airlines
33h 20mDUB-ORD
23/1Thu
1 stopScandinavian Airlines
31h 45mORD-DUB
€312
12/12Thu
directAer Lingus
8h 30mDUB-ORD
27/12Fri
directAer Lingus
7h 20mORD-DUB
€387
12/12Thu
directAer Lingus
8h 30mDUB-ORD
27/12Fri
directAer Lingus
7h 20mORD-DUB
€391
24/12Tue
1 stopBritish Airways
26h 00mDUB-ORD
13/1Mon
1 stopBritish Airways
10h 50mORD-DUB
€398
14/1Tue
2 stopsBritish Airways
16h 04mDUB-ORD
23/1Thu
1 stopBritish Airways
9h 20mORD-DUB
€402
17/1Fri
1 stopUnited Airlines
11h 51mDUB-ORD
30/1Thu
1 stopUnited Airlines
13h 09mORD-DUB
€452
1/3Sat
2 stopsUnited Airlines
17h 19mDUB-ORD
5/3Wed
2 stopsUnited Airlines
14h 05mORD-DUB
€471
12/12Thu
1 stopIberia
11h 59mDUB-ORD
27/12Fri
directIberia
7h 20mORD-DUB
€599
15/12Sun
1 stopIberia
33h 35mDUB-ORD
22/12Sun
1 stopIberia
11h 30mORD-DUB
€733

Search by stops

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Chicago found on KAYAK in the last 72 hours.
24/2Mon
2 stops
38h 35mDUB-ORD
€321
13/1Mon
2 stops
46h 24mDUB-ORD
€326
13/1Mon
3 stops
45h 42mDUB-ORD
€327
2/2Sun
directAer Lingus
8h 35mDUB-ORD
€349
3/2Mon
1 stopIcelandair
11h 50mDUB-ORD
€371
23/2Sun
directAer Lingus
8h 35mDUB-ORD
€378
31/5Sat
1 stopIcelandair
13h 00mDUB-ORD
€417
14/1Tue
1 stopBritish Airways
16h 05mDUB-ORD
€465
1/1Wed
2 stopsBritish Airways
27h 15mDUB-ORD
€474
23/5Fri
directUnited Airlines
8h 15mSNN-ORD
€4,654

Search by stops

Search by airline

Search by price

Last minute flights to Chicago

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Chicago that are departing in the next 10 days.
7/12Sat
directAer Lingus
8h 35mDUB-ORD
28/12Sat
directAer Lingus
7h 20mORD-DUB
€391
4/12Wed
directAer Lingus
8h 30mDUB-ORD
8/12Sun
directAer Lingus
7h 20mORD-DUB
€402
4/12Wed
directAer Lingus
8h 35mDUB-ORD
12/12Thu
directAer Lingus
7h 20mORD-DUB
€402
5/12Thu
multi-stopBritish Airways
16h 05mDUB-ORD
9/12Mon
multi-stopBritish Airways
13h 20mORD-DUB
€554
8/12Sun
multi-stopUnited Airlines
11h 51mDUB-ORD
15/12Sun
multi-stopUnited Airlines
12h 05mORD-DUB
€556
5/12Thu
multi-stopUnited Airlines
17h 10mDUB-ORD
9/12Mon
multi-stopUnited Airlines
14h 10mORD-DUB
€579
4/12Wed
multi-stopBritish Airways
17h 03mDUB-ORD
8/12Sun
multi-stopBritish Airways
15h 35mORD-DUB
€658
4/12Wed
multi-stopIberia
21h 28mDUB-ORD
7/12Sat
multi-stopIberia
11h 30mORD-DUB
€785
5/12Thu
multi-stopKLM
16h 16mDUB-MDW
8/12Sun
multi-stopKLM
15h 47mMDW-DUB
€896
3/12Tue
multi-stopKLM
16h 16mDUB-MDW
8/12Sun
multi-stopKLM
13h 41mMDW-DUB
€1,573

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Chicago

Cabin class types available on flights to Chicago

Cabin classes available on flights to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.