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Cheap flights from Chicago O'Hare Intl Airport to Belfast Intl Airport from £267

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Belfast Intl
Explore the most affordable flight options available from O'Hare Intl to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Tue 1/922:25 -
2 stops11h 55m
Tue 8/910:30 -
2 stops13h 45m
Deal found 2/8£622
Sat 12/919:25 -
2 stops21h 15m
Fri 18/921:10 -
2 stops28h 38m
Deal found 6/8£642
Tue 15/919:25 -
2 stops19h 55m
Tue 22/913:15 -
2 stops30h 45m
Deal found 3/8£648
Sat 12/919:25 -
2 stops21h 15m
Sun 20/921:10 -
3 stops29h 02m
Deal found 6/8£663
Sat 19/919:25 -
2 stops22h 00m
Sat 26/906:00 -
3 stops33h 40m
Deal found 5/8£669

Find flight deals from O'Hare Intl to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Belfast Intl (BFS). 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 7 August 2026.

Round-trip from

£622

One-way from

£267
1/9-8/9
  • 1/9-8/9
  • 4 total stops
  • 25h 40m total
  • Chicago to Belfast
Search Deals
8/9
  • 8/9
  • 2 total stops
  • 21h 55m total
  • Chicago to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl 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 7 August 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 1/9

22:25-16:20

2 stops11h 55m

Belfast Intl

Tue 8/9

10:30-18:15

2 stops13h 45m

£622

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 12/9

19:25-22:40

2 stops21h 15m

Belfast Intl

Fri 18/9

21:10-19:48

2 stops28h 38m

£642

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 15/9

19:25-21:20

2 stops19h 55m

Belfast Intl

Tue 22/9

13:15-14:00

2 stops30h 45m

£648

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 12/9

19:25-22:40

2 stops21h 15m

Belfast Intl

Sun 20/9

21:10-20:12

3 stops29h 02m

£663

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 19/9

19:25-23:25

2 stops22h 00m

Belfast Intl

Sat 26/9

06:00-09:40

3 stops33h 40m

£669

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Fri 18/9

19:25-23:20

3 stops21h 55m

Belfast Intl

Fri 25/9

07:05-19:48

2 stops18h 43m

£731
Cheapest one-way
Fastest single journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 8/9

19:25-23:20

2 stops21h 55m

£267

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Wed 26/8

22:25-11:50

3 stops31h 25m

£270

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Wed 12/8

18:00-08:30

2 stops32h 30m

£306

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Thu 13/8

19:50-21:15

2 stops43h 25m

£327

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Sorted by cheapest first

Best time to book a flight from O'Hare Intl to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from O'Hare Intl with our price prediction graph.
Estimated return 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.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Yes. In addition to deals on O'Hare Intl to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Belfast Intl?

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

  • Can I find deals for business class flights from O'Hare Intl to Belfast Intl?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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.

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry

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Can Cheapflights find flights from O'Hare Intl to Belfast Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from O'Hare Intl to Belfast Intl flexibly with Cheapflights today.

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