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Cheap flights from Belfast Intl Airport to Chicago from £432

This is the cheapest one-way 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 15/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 17:20
BFS
-
ORD
16h 50m
2 stops
Multiple Airlines Logo
19:30 - 17:55
ORD
-
BFS
17h 25m
2 stops
£607Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
17:30 - 13:35
BFS
-
ORD
50h 05m
2 stops
Multiple Airlines Logo
18:20 - 14:10
ORD
-
BFS
14h 50m
1 stop
£718Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
08:35 - 17:20
BFS
-
ORD
14h 45m
2 stops
Multiple Airlines Logo
15:35 - 16:10
ORD
-
BFS
19h 35m
3 stops
£720Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
12:45 - 17:45
BFS
-
ORD
34h 00m
3 stops
Multiple Airlines Logo
19:50 - 22:25
ORD
-
BFS
21h 35m
2 stops
£758Multiple Airlines
Sat, 21 Mar - Sat, 28 Mar
Multiple Airlines Logo
12:45 - 17:45
BFS
-
ORD
34h 00m
3 stops
Multiple Airlines Logo
19:50 - 22:25
ORD
-
BFS
21h 35m
3 stops
£798Multiple Airlines
Sat, 21 Mar - Sat, 28 Mar
Multiple Airlines Logo
15:45 - 18:25
BFS
-
ORD
32h 40m
3 stops
Multiple Airlines Logo
15:35 - 16:10
ORD
-
BFS
19h 35m
3 stops
£824Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
06:25 - 21:00
BFS
-
ORD
19h 35m
2 stops
Multiple Airlines Logo
15:45 - 19:40
ORD
-
BFS
22h 55m
2 stops
£1,092Multiple Airlines
Sat, 21 Mar - Sat, 28 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport to Chicago O'Hare Intl Airport 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 5 February 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 4/3

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Wed 11/3

19:30-17:55

2 stops17h 25m

£607

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 4/3

17:30-13:35

2 stops50h 05m

Chicago O'Hare Intl

Wed 11/3

18:20-14:10

1 stop14h 50m

£718

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 4/3

08:35-17:20

2 stops14h 45m

Chicago O'Hare Intl

Wed 11/3

15:35-16:10

3 stops19h 35m

£720

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 21/3

12:45-17:45

3 stops34h 00m

Chicago O'Hare Intl

Sat 28/3

19:50-22:25

2 stops21h 35m

£758

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 21/3

12:45-17:45

3 stops34h 00m

Chicago O'Hare Intl

Sat 28/3

19:50-22:25

3 stops21h 35m

£798

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 4/3

15:45-18:25

3 stops32h 40m

Chicago O'Hare Intl

Wed 11/3

15:35-16:10

3 stops19h 35m

£824

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 21/3

06:25-21:00

2 stops19h 35m

Chicago O'Hare Intl

Sat 28/3

15:45-19:40

2 stops22h 55m

£1,092

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 15/7

06:00-11:50

3 stops35h 50m

£432

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 15/7

08:30-11:50

2 stops33h 20m

£473

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Belfast Intl Airport to Chicago O'Hare Intl Airport

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

Cheap Belfast Intl Airport to Chicago O'Hare Intl Airport (BFS to ORD) flight deals and tips

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

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Belfast Intl Airport to Chicago O'Hare Intl Airport takes 12h 20m
There are no direct flights from Belfast Intl Airport to Chicago O'Hare Intl Airport. There are no popular flight routes from Belfast Intl Airport to Chicago O'Hare Intl Airport.
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  • How far is Belfast Intl to Chicago O'Hare Intl by plane?

    Chicago O'Hare Intl is 3629.9 mi away from Belfast Intl. Typically, this will take 12h 20m by plane in normal conditions.

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

    Prices for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents required for your trip to Chicago O'Hare Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Belfast Intl Airport to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Belfast Intl Airport to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £490Free CancellationRating
6.7
7,716 reviews
Search British Airways flights

  • How do I get Price Alerts for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport?

    Confirm your travel details to search for the latest offers for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Belfast Intl Airport to Chicago O'Hare Intl Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
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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?

Flights from Belfast to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Belfast to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Chicago from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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