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O'Hare Intl

$327+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
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Cheap flight deals from Belfast Intl to O'Hare Intl

Best flights from Belfast Intl to O'Hare Intl
Discover carefully curated flight deals from Belfast Intl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2025.

This Trip.com deal was found by Cheapflights users on 12/1. 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 1/157:05 amBFS - ORD
2 stops39h 40mMultiple Airlines
Thu 1/227:20 pmORD - BFS
2 stops21h 00mMultiple Airlines
Deal found 12/1$559
This Mytrip deal was found by Cheapflights users on 12/3. 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.
Sat 1/1712:45 pmBFS - ORD
3 stops32h 00mMultiple Airlines
Sat 1/246:30 pmORD - BFS
2 stops22h 10mMultiple Airlines
Deal found 12/3$653
This Mytrip deal was found by Cheapflights users on 12/3. 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 6/16:50 pmBFS - ORD
3 stops29h 00mMultiple Airlines
Sun 6/77:20 pmORD - BFS
2 stops20h 10mMultiple Airlines
Deal found 12/3$756
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Sat 1/106:55 amBFS - ORD
3 stops37h 50mMultiple Airlines
Sat 1/176:30 pmORD - BFS
2 stops22h 10mMultiple Airlines
Deal found 12/1$759

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 December 3, 2025.

Round-trip from

$559
(Trip.com)

One-way from

$327
(Kiwi.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 December 3, 2025.
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

Thu 1/15

7:05 am-4:45 pm

2 stops39h 40m

Chicago O'Hare Intl

Thu 1/22

7:20 pm-10:20 pm

2 stops21h 00m

$559

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/17

12:45 pm-2:45 pm

3 stops32h 00m

Chicago O'Hare Intl

Sat 1/24

6:30 pm-10:40 pm

2 stops22h 10m

$653

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 6/1

6:50 pm-5:50 pm

3 stops29h 00m

Chicago O'Hare Intl

Sun 6/7

7:20 pm-9:30 pm

2 stops20h 10m

$756

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/10

6:55 am-2:45 pm

3 stops37h 50m

Chicago O'Hare Intl

Sat 1/17

6:30 pm-10:40 pm

2 stops22h 10m

$759

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 1/30

6:00 pm-10:42 pm

3 stops58h 42m

$327

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 2/17

9:25 am-9:16 am

3 stops53h 51m

$359

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 2/11

7:55 am-5:20 pm

3 stops39h 25m

$384

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 2/14

8:00 pm-5:20 pm

3 stops27h 20m

$391

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 2/12

6:40 pm-5:20 pm

3 stops28h 40m

$394

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 2/15

12:25 pm-5:20 pm

3 stops34h 55m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 12 results
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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
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
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Skokie
Lake Geneva
Bridgeview
Warrenville
Waukegan
Aurora
Kenosha
Evanston

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Alternative routes for Belfast Intl to O'Hare Intl

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