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$411+ Cheap flights from Belfast Intl (BFS) to Illinois

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
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Cheap flight deals from Belfast Intl to Illinois

Keep the following information in mind while searching for Belfast Intl to Illinois flight deals. Data was last updated October 10, 2025.

Round-trip from

$732
(Mytrip)

One-way from

$411
(Kiwi.com)
From Belfast Intl to Illinois
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One-way flight from Belfast Intl to Illinois
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Find flight deals from Belfast Intl to Illinois

Cheapest flights from Belfast Intl to Illinois
Explore the most affordable flight options available from Belfast Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2025.

This Mytrip deal was found by Cheapflights users on 10/8. 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 11/226:00 amBFS - ORD
2 stops16h 45mMultiple Airlines
Sat 11/297:20 pmORD - BFS
2 stops21h 20mMultiple Airlines
Deal found 10/8$732
This Mytrip deal was found by Cheapflights users on 10/9. 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 11/2410:20 pmBFS - ORD
3 stops46h 40mMultiple Airlines
Mon 12/12:01 pmORD - BFS
3 stops24h 09mMultiple Airlines
Deal found 10/9$735
This Mytrip deal was found by Cheapflights users on 10/9. 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.
Sun 11/236:00 amBFS - ORD
3 stops34h 35mMultiple Airlines
Sun 11/308:25 pmORD - BFS
2 stops16h 30mMultiple Airlines
Deal found 10/9$774

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast Intl to Illinois 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 October 10, 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Illinois that are best for you.

Fly from

Belfast Intl

Fly to

Illinois

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 11/22

6:00 am-4:45 pm

2 stops16h 45m

Chicago O'Hare Intl

Sat 11/29

7:20 pm-10:40 pm

2 stops21h 20m

$732

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/24

10:20 pm-3:00 pm

3 stops46h 40m

Chicago O'Hare Intl

Mon 12/1

2:01 pm-8:10 pm

3 stops24h 09m

$735

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 11/23

6:00 am-10:35 am

3 stops34h 35m

Chicago O'Hare Intl

Sun 11/30

8:25 pm-6:55 pm

2 stops16h 30m

$774

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 10/31

6:30 am-8:17 pm

2 stops42h 47m

$411

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 10/24

8:20 am-9:40 am

2 stops31h 20m

$1,074

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

Best time to book a flight from Belfast Intl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to Illinois
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Illinois. 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 Illinois that include hotel bookings?

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

  • How can I find direct flights from Belfast Intl to Illinois?

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

  • Can I find deals for business class flights from Belfast Intl to Illinois?

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

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