$632 Find Cheap Flights from Chicago to Belfast

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Belfast departing on 12/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

 
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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Cheap Flights from Chicago to Belfast (ORD-BHD)

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

Fri, Dec 5 - Tue, Dec 9
British Airways Logo
9:45 pm - 5:15 pmORD-BHD
13h 30m1 stop
British Airways Logo
10:00 am - 6:45 pmBHD-ORD
14h 45m1 stop
$632British Airways
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Thu, Oct 30 - Mon, Nov 10
British Airways Logo
6:10 pm - 6:50 pmORD-BHD
19h 40m1 stop
British Airways Logo
2:50 pm - 1:50 pmBHD-ORD
29h 00m1 stop
$641British Airways
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Thu, Oct 30 - Sun, Nov 2
Multiple Airlines Logo
6:10 pm - 4:40 pmORD-BHD
17h 30m1 stop
Multiple Airlines Logo
5:30 am - 5:45 pmBHD-ORD
17h 15m2 stops
$702Multiple Airlines
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Fri, Oct 3 - Tue, Oct 7
Delta Logo
4:15 pm - 9:15 pmORD-BHD
23h 00m1 stop
Delta Logo
6:30 am - 2:10 pmBHD-ORD
13h 40m1 stop
$722Delta
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Fri, Dec 5 - Tue, Dec 9
Delta Logo
5:03 pm - 4:50 pmORD-BHD
17h 47m2 stops
Delta Logo
5:20 pm - 2:20 pmBHD-ORD
27h 00m1 stop
$726Delta
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Fri, Oct 31 - Mon, Nov 10
Multiple Airlines Logo
9:15 pm - 10:45 pmORD-BFS
20h 30m3 stops
Multiple Airlines Logo
10:20 pm - 3:00 pmBFS-ORD
46h 40m3 stops
$726Multiple Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 10
American Airlines Logo
5:11 pm - 2:15 pmORD-BHD
16h 04m2 stops
American Airlines Logo
6:35 am - 5:52 pmBHD-ORD
17h 17m2 stops
$744American Airlines
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Fri, Oct 3 - Tue, Oct 7
KLM Logo
4:15 pm - 4:55 pmORD-BHD
18h 40m1 stop
KLM Logo
6:30 am - 2:10 pmBHD-ORD
13h 40m1 stop
$774KLM
Find Deal
Fri, Oct 3 - Tue, Oct 7
KLM Logo
4:15 pm - 4:55 pmORD-BHD
18h 40m1 stop
KLM Logo
6:30 am - 5:22 pmBHD-ORD
16h 52m2 stops
$784KLM
Find Deal
Wed, Dec 3 - Sun, Dec 7
American Airlines Logo
5:10 pm - 10:15 amORD-BHD
11h 05m1 stop
American Airlines Logo
9:10 am - 5:55 pmBHD-ORD
14h 45m2 stops
$833American Airlines
Find Deal

Everything you should know

Top airlines
British Airways
Cheapest • from $632 (round-trip)
British Airways
Best reviews • 6.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$632
British Airways
Fri 12/5Tue 12/9
ORD - BHD • 1 stop
Cheapest one-way
Multiple Airlines
Tue 9/16
ORD - BF1 • multi-stop
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We hope you love your trip to Belfast!
Booking Insights

KAYAK's insights & trends for Chicago to Belfast flights

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

How much is a round-trip flight from Chicago O'Hare Intl Airport to Belfast?

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Good to know

Cheapest flight$632
Flight from Chicago O'Hare Airport to Belfast City Airport

When to book flights from Chicago to Belfast

Are your dates flexible? Find out the best times to travel from Chicago to Belfast 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 flights

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Belfast was $632 for a round-trip ticket.

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

    Yes

  • Which airports will I be using when flying from Chicago to Belfast?

    On your way to Belfast, you’ll fly out from Chicago O'Hare Intl. You’ll be landing in one of Belfast’s 2 airports: Belfast Intl or Belfast City.

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

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

  • Which airline alliances offer flights from Chicago to Belfast?

    oneworld, and SkyTeam are the airline alliances operating flights between Chicago and Belfast, with SkyTeam being the most commonly used for this route.

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

    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.

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

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

    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 with an airline and back to Chicago with another airline.

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

    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 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

 
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? 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.
6.6
British AirwaysOverall score based on 7361 reviews
6.9Boarding
7.6Crew
6.4Entertainment
6.3Food
6.7Comfort
Airline reviews

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

4.0 OkayAnonymous, Sep 2025BOS - LHR
Read more British Airways reviews

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

The flight was very delayed in taking off - which was out of control of the crew, but then the pilot worked hard so we only arrived about 30 minutes late. Everyone was very friendly and accommodating!

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room

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

Information on your arrival and departure airports

Chicago (ORD)

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