ORD - BFS

$331 Find Cheap Flights from Chicago to Belfast Intl 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 Chicago to Belfast Intl departing on 9/5. 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 Belfast Intl Airport

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

Cheapest round-trip
$845
Multiple Airlines
Tue 6/9Tue 6/16
ORD - BFS • 2 stops
Cheapest one-way
$331
Multiple Airlines
Sat 9/5
ORD - BFS • 2 stops
Start a new search
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We hope you love your trip to Belfast Intl!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Chicago to Belfast Intl (ORD-BFS)

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

Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
9:55 am - 4:20 pm
ORD
-
BFS
24h 25m
2 stops
Multiple Airlines Logo
8:15 pm - 9:25 pm
BFS
-
ORD
31h 10m
3 stops
$845Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
9:55 am - 6:55 pm
ORD
-
BFS
27h 00m
3 stops
Multiple Airlines Logo
7:40 am - 11:50 am
BFS
-
ORD
34h 10m
2 stops
$909Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
9:55 am - 6:55 pm
ORD
-
BFS
27h 00m
2 stops
Multiple Airlines Logo
7:40 am - 11:50 am
BFS
-
ORD
34h 10m
2 stops
$910Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
2:00 pm - 2:00 pm
ORD
-
BFS
18h 00m
3 stops
Multiple Airlines Logo
8:15 pm - 9:25 pm
BFS
-
ORD
31h 10m
3 stops
$957Multiple Airlines
Tue, Sep 8 - Sun, Sep 13
Multiple Airlines Logo
3:45 pm - 3:15 pm
ORD
-
BFS
17h 30m
2 stops
Multiple Airlines Logo
10:00 pm - 3:10 pm
BFS
-
ORD
47h 10m
3 stops
$977Multiple Airlines
Tue, Sep 8 - Sun, Sep 13
Multiple Airlines Logo
8:45 am - 3:15 pm
ORD
-
BFS
24h 30m
3 stops
Multiple Airlines Logo
10:00 pm - 3:10 pm
BFS
-
ORD
47h 10m
3 stops
$990Multiple Airlines
Mon, Sep 14 - Tue, Dec 15
Multiple Airlines Logo
2:15 pm - 3:35 pm
ORD
-
BFS
19h 20m
3 stops
Multiple Airlines Logo
7:05 am - 3:30 pm
BFS
-
ORD
38h 25m
3 stops
$997Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
9:55 am - 4:20 pm
ORD
-
BFS
24h 25m
2 stops
Multiple Airlines Logo
5:55 am - 4:59 pm
BFS
-
ORD
17h 04m
2 stops
$1,024Multiple Airlines
Sun, May 10 - Wed, May 13
Multiple Airlines Logo
9:55 am - 6:50 pm
ORD
-
BFS
26h 55m
2 stops
Multiple Airlines Logo
3:05 pm - 11:56 pm
BFS
-
ORD
38h 51m
3 stops
$1,025Multiple Airlines
Sun, Aug 2 - Sat, Aug 15
Multiple Airlines Logo
8:45 am - 9:50 pm
ORD
-
BFS
31h 05m
3 stops
Multiple Airlines Logo
11:10 am - 11:50 am
BFS
-
ORD
30h 40m
2 stops
$1,027Multiple Airlines
Useful Info

Good to know

Cheapest flight$331
Flight from Chicago to Belfast Intl Airport

When to book flights from Chicago to Belfast Intl

Are your dates flexible? Find out the best times to travel from Chicago to Belfast Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Chicago to Belfast Intl Airport flights

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Belfast Intl Airport was $331 for a one-way ticket and $845 for a round-trip.

  • Do I need a passport to fly between Chicago and Belfast Intl Airport?

    Yes

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

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

  • Which airline alliances offer flights from Chicago to Belfast Intl Airport?

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

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport from Chicago 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 Chicago to Belfast Intl Airport?

    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 Belfast Intl Airport with an airline and back to Chicago with another airline. Booking your flights between Chicago and BFS can sometimes prove cheaper using this method.

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

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Belfast. 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 Chicago to Belfast 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.
6.7
British AirwaysOverall score based on 7937 reviews
6.8Comfort
6.4Entertainment
6.9Boarding
7.7Crew
6.4Food
Airline reviews

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

10.0 ExcellentAnonymous, Apr 2026
SFO - LHR
Read more British Airways reviews

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

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

Information on your arrival and departure airports