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Cheap flights from Belfast to Chicago O'Hare Intl Airport from £281

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
7 Sep — 14 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to O'Hare Intl
Explore the most affordable flight options available from Belfast to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 August 2026.

Mon 21/920:55 -
3 stops29h 46m
Wed 30/919:25 -
2 stops20h 55m
Deal found 6/8£563
Mon 21/906:10 -
3 stops44h 31m
Mon 28/919:25 -
2 stops19h 30m
Deal found 7/8£607
Wed 26/806:00 -
2 stops19h 15m
Wed 14/1015:45 -
2 stops25h 25m
Deal found 5/8£617
Wed 26/807:00 -
3 stops43h 41m
Wed 14/1022:25 -
2 stops15h 15m
Deal found 5/8£737
Thu 5/1107:40 -
1 stop12h 05m
Mon 9/1113:22 -
2 stops15h 18m
Deal found 4/8£754
Wed 2/1209:15 -
1 stop15h 30m
Sun 6/1217:10 -
1 stop11h 10m
Deal found 6/8£755
Wed 26/809:50 -
2 stops16h 40m
Wed 14/1011:19 -
2 stops16h 01m
Deal found 5/8£798
Wed 26/806:30 -
1 stop13h 20m
Wed 14/1021:15 -
1 stop12h 25m
Deal found 5/8£809

Find flight deals from Belfast to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) 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 8 August 2026.

Round-trip from

£563

One-way from

£299
21/9-30/9
  • 21/9-30/9
  • 5 total stops
  • 50h 41m total
  • Belfast to Chicago
Search Deals
30/9
  • 30/9
  • 3 total stops
  • 35h 05m total
  • Belfast to Chicago
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to O'Hare 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 8 August 2026.
Use the filters below to find and compare flights from Belfast to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 21/9

20:55-20:41

3 stops29h 46m

Chicago O'Hare Intl

Wed 30/9

19:25-22:20

2 stops20h 55m

£563

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 21/9

06:10-20:41

3 stops44h 31m

Chicago O'Hare Intl

Mon 28/9

19:25-20:55

2 stops19h 30m

£607

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 26/8

06:00-19:15

2 stops19h 15m

Chicago O'Hare Intl

Wed 14/10

15:45-23:10

2 stops25h 25m

£617
Fastest return journey

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 12/11

07:40-13:45

1 stop12h 05m

Chicago O'Hare Intl

Mon 16/11

18:50-14:15

1 stop13h 25m

£754

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 5/11

07:40-13:45

1 stop12h 05m

Chicago O'Hare Intl

Mon 9/11

13:22-10:40

2 stops15h 18m

£754

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

09:15-18:45

1 stop15h 30m

Chicago O'Hare Intl

Sun 6/12

17:10-10:20

1 stop11h 10m

£755

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 23/8

07:00-20:20

3 stops43h 20m

Chicago O'Hare Intl

Sat 29/8

19:25-20:05

3 stops18h 40m

£899
Cheapest one-way

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Tue 29/9

20:15-17:50

3 stops51h 35m

£281

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 28/9

21:55-17:50

3 stops49h 55m

£284

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 30/9

07:30-17:50

3 stops40h 20m

£286

Flights are sorted by cheapest return flights first.

Deals found on 8/8

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Belfast to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Belfast 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Chicago O'Hare Intl Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Belfast 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.

  • How long is the flight from Belfast to Chicago O'Hare Intl Airport?

    Departing from Belfast to Chicago O'Hare Intl Airport will take you 12h 05m. There are 3644 mi between Belfast and Chicago O'Hare Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast to O'Hare 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.

See more FAQs

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to O'Hare Intl flights
Belfast City to O'Hare Intl flights

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How does Cheapflights help users find flights from Belfast to O'Hare Intl?

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Why should you use Cheapflights to find cheap flight tickets from Belfast to O'Hare Intl?

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

Yes! Cheapflights helps users easily find flights from Belfast to O'Hare Intl with no change fees.

Can Cheapflights notify me if prices for flights from Belfast to O'Hare Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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