$255+ Cheap flights from Illinois to Belfast Intl (BFS)
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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Jan 17 — Jan 241
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Belfast Intl
Best flights from Illinois to Belfast IntlDiscover carefully curated flight deals from Illinois to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
Discover carefully curated flight deals from Illinois to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
This Mytrip deal was found by Cheapflights users on 12/16. 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 1/306:30 pmORD - BFS
2 stops21h 30mMultiple Airlines
Fri 2/68:05 amBFS - ORD
2 stops15h 15mMultiple Airlines
Deal found 12/16![Multiple Airlines logo]()
$605
This Mytrip deal was found by Cheapflights users on 12/16. 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 1/186:30 pmORD - BFS
2 stops18h 25mMultiple Airlines
Mon 2/210:20 pmBFS - ORD
3 stops46h 40mMultiple Airlines
Deal found 12/16![Multiple Airlines logo]()
$628
This Mytrip deal was found by Cheapflights users on 12/16. 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 3/1212:50 pmORD - BFS
3 stops26h 35mMultiple Airlines
Thu 3/199:40 amBFS - ORD
3 stops35h 45mMultiple Airlines
Deal found 12/16![Multiple Airlines logo]()
$782
This Mytrip deal was found by Cheapflights users on 12/17. 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 5/129:40 amMDW - BFS
3 stops18h 35mMultiple Airlines
Sat 5/166:20 amBFS - MDW
3 stops40h 04mMultiple Airlines
Deal found 12/17![Multiple Airlines logo]()
$1,630
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 December 18, 2025.
Round-trip from | $605 (Mytrip) |
|---|---|
One-way from | $255 (Mytrip) |
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 December 18, 2025.
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
Fri 1/30
6:30 pm-10:00 pm
2 stops21h 30m
Belfast Intl
Fri 2/6
8:05 am-5:20 pm
2 stops15h 15m
$605
ChicagoBelfast
ORD - BFS
ORDBFS
Chicago O'Hare Intl
Sun 1/18
6:30 pm-6:55 pm
2 stops18h 25m
Belfast Intl
Mon 2/2
10:20 pm-3:00 pm
3 stops46h 40m
$628
ChicagoBelfast
ORD - BFS
ORDBFS
Chicago O'Hare Intl
Thu 3/12
12:50 pm-8:25 pm
3 stops26h 35m
Belfast Intl
Thu 3/19
9:40 am-4:25 pm
3 stops35h 45m
$782
ChicagoBelfast
MDW - BFS
MDWBFS
Chicago Midway
Tue 5/12
9:40 am-10:15 am
3 stops18h 35m
Belfast Intl
Sat 5/16
6:20 am-4:24 pm
3 stops40h 04m
$1,630
ChicagoBelfast
ORD - BFS
ORDBFS
Chicago O'Hare Intl
Wed 1/14
6:30 pm-4:10 pm
2 stops15h 40m
$255
ChicagoBelfast
MDW - BFS
MDWBFS
Chicago Midway
Thu 1/15
6:30 pm-7:40 am
3 stops31h 10m
$330
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
What is the cheapest time of day to fly from IL to BFS?
Find hourly flight availability from Illinois to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from Illinois to Belfast Intl Airport by exploring options for tickets in the morning.
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.
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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.
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 December 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$577 | Average$691 | FlexibilityNo cancel fee | On-time70% |