£452 Find Cheap Flights from Belfast to Chicago – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Chicago departing on 24/6. 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 Chicago

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast 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 Belfast to Chicago, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£640
Multiple Airlines
Thu 9/7Mon 13/7
BFS - ORD • 3 stops
Cheapest one-way flight
£452
Multiple Airlines
Wed 24/6
BFS - ORD • 3 stops
Top airlines
Cheapest • from £657 (return)
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belfast to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast to Chicago

Thu, 9 Jul - Mon, 13 Jul
Multiple Airlines Logo
08:20 - 20:05
BFS
-
ORD
17h 45m
3 stops
Multiple Airlines Logo
09:50 - 21:35
ORD
-
BFS
29h 45m
2 stops
£640Multiple Airlines
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
11:30 - 18:45
BHD
-
ORD
13h 15m
1 stop
British Airways Logo
14:03 - 10:30
ORD
-
BHD
14h 27m
2 stops
£657British Airways
Thu, 9 Jul - Mon, 13 Jul
Multiple Airlines Logo
08:20 - 22:05
BFS
-
ORD
19h 45m
2 stops
Multiple Airlines Logo
09:50 - 21:35
ORD
-
BFS
29h 45m
2 stops
£658Multiple Airlines
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
06:35 - 17:41
BHD
-
ORD
17h 06m
2 stops
British Airways Logo
16:40 - 14:15
ORD
-
BHD
15h 35m
2 stops
£661British Airways
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
11:30 - 18:45
BHD
-
ORD
13h 15m
1 stop
British Airways Logo
14:03 - 10:30
ORD
-
BHD
14h 27m
2 stops
£663British Airways
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
11:30 - 18:45
BHD
-
ORD
13h 15m
1 stop
British Airways Logo
14:03 - 10:30
ORD
-
BHD
14h 27m
2 stops
£665British Airways
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
11:30 - 18:45
BHD
-
ORD
13h 15m
1 stop
British Airways Logo
14:03 - 10:30
ORD
-
BHD
14h 27m
2 stops
£666British Airways
Thu, 2 Jul - Tue, 21 Jul
Multiple Airlines Logo
06:40 - 16:57
BFS
-
ORD
16h 17m
2 stops
Multiple Airlines Logo
08:45 - 22:15
ORD
-
BFS
31h 30m
3 stops
£667Multiple Airlines
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
06:35 - 18:25
BHD
-
ORD
17h 50m
2 stops
British Airways Logo
16:40 - 14:15
ORD
-
BHD
15h 35m
2 stops
£667British Airways
Thu, 2 Jul - Tue, 21 Jul
Multiple Airlines Logo
06:40 - 16:57
BFS
-
ORD
16h 17m
2 stops
Multiple Airlines Logo
17:35 - 22:15
ORD
-
BFS
22h 40m
2 stops
£668Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Belfast to Chicago flights

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

Which airlines provide the cheapest flights from Belfast to Chicago?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 3 days, the cheapest return tickets from Belfast to Chicago were found on British Airways (£657) and American Airlines (£722).

Good to know - Cheap tickets from Belfast to Chicago

Cheapest flight£452
Flight from Belfast Intl Airport to Chicago

When to book flights from Belfast to Chicago

Are your dates flexible? Find out the best times to travel from Belfast 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Belfast to Chicago

  • What is the cheapest flight from Belfast to Chicago?

    In the last 3 days, the lowest price for a flight from Belfast to Chicago was £452 for a one-way ticket and £640 for a return.

  • Which aircraft models fly most regularly from Belfast to Chicago?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Belfast to Chicago?

    oneworld is the only airline alliance operating flights between Belfast and Chicago.

  • How does KAYAK find such low prices on flights from Belfast 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 from Belfast to Chicago.

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

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

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

    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 with an airline and back to Belfast with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast 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 from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Belfast to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Belfast 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 Belfast 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.
6.7
British AirwaysOverall score based on 8055 reviews
6.9Boarding
6.8Comfort
7.7Crew
6.4Entertainment
6.4Food
Airline reviews

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

8.0 ExcellentEric, Jun 2026
LHR - LAS
Read more British Airways reviews

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

Everything you need to know for your flight from Belfast to Chicago

Cabin class types available on flights from Belfast to Chicago

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