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Belfast Intl

$883+ Cheap flights from Illinois to Belfast Intl (BFS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Illinois to Belfast Intl

Cheapest flights from Illinois to Belfast Intl
Explore the most affordable flight options available from Illinois to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Mytrip deal was found by Cheapflights users on 1/28. 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 3/155:05 pm
ORD
-
BFS
2 stops20h 50m
Multiple Airlines
Sun 3/227:30 am
BFS
-
ORD
2 stops35h 55m
Multiple Airlines
Deal found 1/28$883
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Fri 3/1312:50 pm
ORD
-
BFS
2 stops28h 10m
Multiple Airlines
Fri 3/206:00 pm
BFS
-
ORD
2 stops22h 05m
Multiple Airlines
Deal found 1/27$961
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Fri 3/207:15 am
ORD
-
BFS
3 stops26h 55m
Multiple Airlines
Sat 3/287:50 pm
BFS
-
ORD
3 stops33h 17m
Multiple Airlines
Deal found 1/27$1,051
This Mytrip deal was found by Cheapflights users on 1/27. 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 3/215:05 pm
ORD
-
BFS
2 stops24h 35m
Multiple Airlines
Fri 3/278:05 am
BFS
-
ORD
2 stops18h 00m
Multiple Airlines
Deal found 1/27$1,054
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/225:25 pm
ORD
-
BFS
1 stop15h 15m
Multiple Airlines
Mon 3/3010:05 am
BFS
-
ORD
2 stops18h 11m
Multiple Airlines
Deal found 1/27$1,155

Find flight deals from Illinois to Belfast Intl

Keep the following information in mind while searching for Illinois to Belfast Intl flight deals. Data was last updated January 29, 2026.

Round-trip from

$883
(Mytrip)
From Illinois to Belfast Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Belfast 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 January 29, 2026.
Use the filters below to find and compare flights from Illinois to Belfast Intl Airport that are best for you.

Fly from

Illinois

Fly to

Belfast Intl

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 3/15

5:05 pm-6:55 pm

2 stops20h 50m

Belfast Intl

Sun 3/22

7:30 am-2:25 pm

2 stops35h 55m

$883

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 3/13

12:50 pm-10:00 pm

2 stops28h 10m

Belfast Intl

Fri 3/20

6:00 pm-11:05 am

2 stops22h 05m

$961

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 3/20

7:15 am-3:10 pm

3 stops26h 55m

Belfast Intl

Sat 3/28

7:50 pm-12:07 am

3 stops33h 17m

$1,051

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 3/21

5:05 pm-10:40 pm

2 stops24h 35m

Belfast Intl

Fri 3/27

8:05 am-9:05 pm

2 stops18h 00m

$1,054

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Best time to book a flight from Illinois to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Illinois 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 Illinois to Belfast Intl Airport
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 Illinois to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Illinois to Belfast Intl Airport?

    The most popular flight routes from Illinois to Belfast Intl Airport are Chicago O'Hare Intl - Belfast Intl, Chicago Midway - Belfast Intl and Lambert-St Louis - Belfast Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Belfast 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.

See more FAQs

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Alternative routes for Illinois to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Illinois to Belfast Intl

Discover the top airline that operate flights from Illinois to Belfast Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$697FlexibilityNo cancel feeOn-time70%

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