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Cheap flights from Belfast Intl Airport to Chicago from £571

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to Chicago departing on 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Belfast Intl Airport to Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 17:20BFS-ORD
16h 50m2 stops
Multiple Airlines Logo
18:30 - 17:55ORD-BFS
17h 25m2 stops
£571Multiple Airlines
Find Deal
Mon, 8 Dec - Mon, 15 Dec
Multiple Airlines Logo
22:20 - 15:00BFS-ORD
46h 40m3 stops
Multiple Airlines Logo
14:20 - 21:40ORD-BFS
25h 20m2 stops
£589Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
05:45 - 19:55BFS-ORD
20h 10m1 stop
Multiple Airlines Logo
08:36 - 14:05ORD-BFS
23h 29m2 stops
£795Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
20:55 - 14:00BFS-ORD
23h 05m2 stops
Multiple Airlines Logo
18:30 - 12:00ORD-BFS
11h 30m2 stops
£839Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
22:20 - 22:11BFS-ORD
29h 51m2 stops
Multiple Airlines Logo
17:20 - 21:40ORD-BFS
22h 20m1 stop
£849Multiple Airlines
Find Deal
Mon, 8 Dec - Mon, 15 Dec
Multiple Airlines Logo
06:00 - 14:45BFS-ORD
38h 45m3 stops
Multiple Airlines Logo
07:20 - 19:55ORD-BFS
30h 35m3 stops
£944Multiple Airlines
Find Deal
Sat, 13 Dec - Sat, 20 Dec
Multiple Airlines Logo
07:20 - 17:55BFS-ORD
16h 35m2 stops
Multiple Airlines Logo
19:40 - 14:40ORD-BFS
13h 00m2 stops
£954Multiple Airlines
Find Deal
Sat, 13 Dec - Sat, 20 Dec
Multiple Airlines Logo
06:00 - 14:45BFS-ORD
38h 45m3 stops
Multiple Airlines Logo
07:05 - 19:55ORD-BFS
30h 50m2 stops
£972Multiple Airlines
Find Deal
Sat, 13 Dec - Sat, 20 Dec
Multiple Airlines Logo
10:35 - 13:31BFS-ORD
32h 56m2 stops
Multiple Airlines Logo
16:25 - 18:30ORD-BFS
20h 05m1 stop
£1,600Multiple Airlines
Find Deal
Sat, 13 Dec - Sat, 20 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 8/12

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Mon 15/12

18:30-17:55

2 stops17h 25m

£571

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 1/12

22:20-15:00

3 stops46h 40m

Chicago O'Hare Intl

Mon 8/12

14:20-21:40

2 stops25h 20m

£589

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 1/12

05:45-19:55

1 stop20h 10m

Chicago O'Hare Intl

Mon 8/12

08:36-14:05

2 stops23h 29m

£795

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 1/12

20:55-14:00

2 stops23h 05m

Chicago O'Hare Intl

Mon 8/12

18:30-12:00

2 stops11h 30m

£839

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 8/12

22:20-22:11

2 stops29h 51m

Chicago O'Hare Intl

Mon 15/12

17:20-21:40

1 stop22h 20m

£849

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 13/12

06:00-14:45

3 stops38h 45m

Chicago O'Hare Intl

Sat 20/12

07:20-19:55

3 stops30h 35m

£944

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 13/12

07:20-17:55

2 stops16h 35m

Chicago O'Hare Intl

Sat 20/12

19:40-14:40

2 stops13h 00m

£954

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 13/12

06:00-14:45

3 stops38h 45m

Chicago O'Hare Intl

Sat 20/12

07:05-19:55

2 stops30h 50m

£972

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 13/12

10:35-13:31

2 stops32h 56m

Chicago O'Hare Intl

Sat 20/12

16:25-18:30

1 stop20h 05m

£1,600

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Chicago from

How to get the cheapest flight ticket from Belfast Intl Airport to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as £601. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Saturday, with ticket prices averaging around £838.

When to book flights from Belfast Intl Airport to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Belfast Intl Airport to Chicago (BFS to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to Chicago

Direct flights

None
There are no direct flights from Belfast Intl Airport to Chicago. There are no popular flight routes from Belfast Intl Airport to Chicago.
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  • How far is Belfast Intl to Chicago by plane?

    The straight-line distance from Belfast Intl to Chicago is 3624.6 mi. 16h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Belfast Intl Airport to Chicago?

    Prices for flights from Belfast Intl Airport to Chicago are updated daily.

  • How many operators does momondo search for flights from Belfast Intl Airport to Chicago?

  • How old do you have to be to fly from Belfast Intl Airport to Chicago?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast Intl Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Belfast Intl Airport to Chicago?

Best airlines flying from Belfast Intl Airport to Chicago

Compare and see reviews for airlines that fly from Belfast Intl Airport to Chicago with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £493Free CancellationRating
6.7
7,487 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Chicago?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Chicago . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Belfast to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Belfast to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from Belfast to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Belfast.

I’m not ready to book a flight from Belfast to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport