Cheap flights from Belfast Intl Airport to Chicago O'Hare Intl Airport from £428
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast Intl to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to O'Hare Intl (ORD). 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 13 August 2025.
Find flight deals from Belfast Intl to O'Hare Intl
Cheapest flights from Belfast Intl to O'Hare IntlExplore the most affordable flight options available from Belfast Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 August 2025.
Explore the most affordable flight options available from Belfast Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastChicago
BFS - ORD
BFSORD
Belfast Intl
Tue 11/11
06:30-17:20
2 stops16h 50m
Chicago O'Hare Intl
Tue 18/11
18:30-17:55
2 stops17h 25m
BelfastChicago
BFS - ORD
BFSORD
Belfast Intl
Thu 25/9
12:20-18:15
2 stops11h 55m
Chicago O'Hare Intl
Thu 2/10
19:25-23:10
2 stops21h 45m
BelfastChicago
BFS - ORD
BFSORD
Belfast Intl
Thu 16/10
07:10-16:10
3 stops39h 00m
Chicago O'Hare Intl
Sun 2/11
20:25-20:10
2 stops17h 45m
BelfastChicago
BFS - ORD
BFSORD
Belfast Intl
Sat 27/9
05:45-14:00
2 stops14h 15m
Chicago O'Hare Intl
Sat 4/10
06:30-22:25
2 stops33h 55m
Best time to book a flight from Belfast Intl to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Belfast Intl with our price prediction graph.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 13 August 2025.
Get a feel of what it's like to fly with British Airways from Belfast Intl Airport to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Anonymous,May 2025
LHR - LAX
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Anonymous,May 2025
LHR - LAX
Related info for your journey
Find useful and relevant information for your journey from Belfast Intl to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Chicago O'Hare Intl Airport?
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Alternative routes for Belfast Intl to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Belfast Intl to O'Hare Intl
Discover the top airline that operate flights from Belfast Intl to O'Hare 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 858,174 searches. Data last updated 13 August 2025.
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How does Cheapflights help users find flights from Belfast Intl to O'Hare Intl?
When you search for this flight from Belfast Intl to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to O'Hare Intl?
Cheapflights helps you find that perfect flight to O'Hare Intl from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Belfast Intl to O'Hare Intl with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to O'Hare Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Belfast Intl to O'Hare Intl become cheaper?
Yes! Start tracking prices for Belfast Intl to O'Hare Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.