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O'Hare Intl

$591+ Cheap flights from Belfast Intl (BFS) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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Cheap flight deals from Belfast Intl to O'Hare Intl

Cheapest flights from Belfast Intl to O'Hare Intl
Explore the most affordable flight options available from Belfast Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.

This Mytrip deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/133:35 pm
BFS
-
ORD
2 stops32h 40m
Multiple Airlines
Mon 4/207:25 pm
ORD
-
BFS
3 stops21h 55m
Multiple Airlines
Deal found 2/18$728
This Trip.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:10 am
BFS
-
ORD
2 stops37h 50m
Multiple Airlines
Sun 4/126:00 pm
ORD
-
BFS
2 stops21h 50m
Multiple Airlines
Deal found 2/19$1,096
This Trip.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:30 am
BFS
-
ORD
2 stops14h 50m
Multiple Airlines
Wed 2/256:30 pm
ORD
-
BFS
2 stops15h 00m
Multiple Airlines
Deal found 2/19$1,969

Find flight deals from Belfast Intl to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2026.

Round-trip from

$1,096
(Trip.com)

One-way from

$591
(Trip.com)
From Belfast Intl to Chicago O'Hare Intl
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One-way flight from Belfast Intl to Chicago O'Hare Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast Intl to O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated February 22, 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

Belfast Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 4/13

3:35 pm-6:15 pm

2 stops32h 40m

Chicago O'Hare Intl

Mon 4/20

7:25 pm-11:20 pm

3 stops21h 55m

$728

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 4/9

8:10 am-4:00 pm

2 stops37h 50m

Chicago O'Hare Intl

Sun 4/12

6:00 pm-9:50 pm

2 stops21h 50m

$1,096

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 6/17

6:10 am-9:25 pm

2 stops21h 15m

$591

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 7/22

9:55 am-11:50 am

2 stops31h 55m

$598

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 7/13

6:40 am-3:55 pm

2 stops15h 15m

$790

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Best time to book a flight from Belfast Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Belfast Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Belfast Intl to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to O'Hare Intl.

  • Can I find deals for business class flights from Belfast Intl to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Belfast Intl to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Naperville
Hoffman Estates
Beloit
Delavan
Des Plaines
Elgin
Downers Grove
Elk Grove Village
Skokie
Oak Brook
South Holland
Libertyville
Oakbrook Terrace
Lake Geneva
Waukegan
Bridgeview
Kenosha

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Alternative routes for Belfast Intl to O'Hare Intl

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Belfast City to O'Hare Intl flights

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