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$428+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
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 November 24, 2025.

Round-trip from

$766
(Mytrip)

One-way from

$428
(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

Best flights from Belfast Intl to Illinois
Discover carefully curated flight deals from Belfast Intl to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 24, 2025.

This Mytrip deal was found by Cheapflights users on 11/24. 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.
Thu 1/86:30 amBFS - ORD
2 stops16h 50mMultiple Airlines
Thu 1/156:30 pmORD - BFS
2 stops20h 10mMultiple Airlines
Deal found 11/24$766
This Mytrip deal was found by Cheapflights users on 11/22. 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.
Tue 1/66:30 amBFS - ORD
3 stops19h 00mMultiple Airlines
Tue 1/133:55 pmORD - BFS
3 stops16h 50mMultiple Airlines
Deal found 11/22$1,062

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 November 24, 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

Thu 1/8

6:30 am-5:20 pm

2 stops16h 50m

Chicago O'Hare Intl

Thu 1/15

6:30 pm-8:40 pm

2 stops20h 10m

$766

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/6

6:30 am-7:30 pm

3 stops19h 00m

Chicago O'Hare Intl

Tue 1/13

3:55 pm-2:45 pm

3 stops16h 50m

$1,062

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 1/8

6:55 pm-7:17 pm

2 stops54h 22m

$428

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 11/30

3:45 pm-12:56 pm

3 stops51h 11m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

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
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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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