Cheap flights from Illinois to Belfast Intl Airport from £246
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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap 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 11 luglio 2025.
Find flight deals from Illinois to Belfast Intl
Cheapest flights from Illinois to Belfast IntlExplore 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 11 luglio 2025.
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 11 luglio 2025.
Cheapflights Fare Finder
Customise 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 858,174 searches. Data last updated 11 luglio 2025.
Use the filters below to find and compare flights from Illinois to Belfast Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoBelfast
ORD - BFS
ORDBFS
Chicago O'Hare Intl
lun 25/8
19:25-17:20
2 stops15h 55m
Belfast Intl
lun 1/9
06:40-18:15
2 stops17h 35m
St. LouisBelfast
STL - BFS
STLBFS
Lambert-St Louis
gio 4/9
14:30-16:40
3 stops20h 10m
Belfast Intl
ven 12/9
06:05-19:57
2 stops19h 52m
ChicagoBelfast
ORD - BFS
ORDBFS
Chicago O'Hare Intl
mer 3/9
19:25-19:05
2 stops17h 40m
Best time to book a flight from Illinois to Belfast Intl
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Everything you need to know about your flight from Illinois to Belfast Intl Airport
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Alternative routes for Illinois to Belfast Intl
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How does Cheapflights help users find flights from Illinois to Belfast Intl?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Belfast Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Illinois to Belfast Intl?
Millions of users choose and trust Cheapflights to book the best flight deals from Illinois to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Illinois to Belfast Intl with no change fees?
Yes! Cheapflights helps users easily find flights from Illinois to Belfast Intl with no change fees.
Can Cheapflights notify me if prices for flights from Illinois to Belfast Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Illinois today and book when prices fit your budget.