Cheap flights from Chicago to Belfast from £237
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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Chicago to Belfast
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 September 2025.
Round-trip from | £466 |
---|---|
One-way from | £237 |
Find flight deals from Chicago to Belfast
Cheapest flights from Chicago to BelfastExplore the most affordable flight options available from Chicago to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.
Explore the most affordable flight options available from Chicago to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Chicago to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Fri 5/12
21:45-17:15
1 stop13h 30m
Belfast City
Tue 9/12
10:00-18:45
1 stop14h 45m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Mon 27/10
17:11-16:05
2 stops17h 54m
Belfast City
Sun 2/11
20:25-19:20
2 stops28h 55m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Mon 27/10
21:45-14:15
1 stop11h 30m
Belfast City
Sun 2/11
10:40-17:00
1 stop12h 20m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Fri 31/10
18:10-10:30
1 stop11h 20m
Belfast City
Mon 10/11
14:50-18:45
1 stop33h 55m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Wed 3/12
17:10-10:15
1 stop11h 05m
Belfast City
Sun 7/12
06:30-18:45
1 stop18h 15m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Thu 30/10
18:10-16:40
1 stop17h 30m
Belfast City
Sun 2/11
05:30-17:45
2 stops17h 15m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Sun 12/10
20:40-17:40
1 stop15h 00m
Belfast City
Sun 19/10
20:05-13:50
1 stop23h 45m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Fri 3/10
16:15-21:15
1 stop23h 00m
Belfast City
Tue 7/10
06:30-14:10
1 stop13h 40m
ChicagoBelfast
ORD - BFS
ORDBFS
Chicago O'Hare Intl
Fri 31/10
21:15-22:45
3 stops20h 30m
Belfast Intl
Mon 10/11
22:20-15:00
3 stops46h 40m
ChicagoBelfast
ORD - BHD
ORDBHD
Chicago O'Hare Intl
Fri 26/9
16:15-16:55
1 stop18h 40m
Belfast City
Wed 1/10
06:30-16:20
2 stops15h 50m
Best time to book a flight from Chicago to Belfast
Have a flexible travel schedule? Discover the best time to fly to Belfast from Chicago with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Chicago to Belfast
Related info for your journey
Find useful and relevant information for your journey from Chicago to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Chicago to Belfast
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Chicago to Belfast?
Cheapflights helps you search for flights from Chicago to Belfast via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Chicago to Belfast?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chicago to Belfast for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Chicago to Belfast with no change fees?
Certainly. Search results for flights to Belfast from Chicago shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Chicago to Belfast become cheaper?
Not ready to book yet? You can track prices for flights from Chicago to Belfast on Cheapflights with our Price Alert feature and get notified when better prices are available.