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Cheap flights from Chicago to Belfast from £414

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Chicago to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Chicago to Belfast
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 27 November 2025.

Sun 7/1218:35ORD - BHD
1 stop18h 05mAmerican Airlines
Sun 14/1206:30BHD - ORD
2 stops17h 09mAmerican Airlines
Deal found 26/11£476
Sun 7/1216:25ORD - BHD
1 stop22h 35mKLM
Sun 14/1217:20BHD - ORD
1 stop27h 00mKLM
Deal found 26/11£511
Sun 7/1217:34ORD - BHD
2 stops19h 06mBritish Airways
Sun 14/1209:10BHD - ORD
2 stops28h 11mBritish Airways
Deal found 26/11£529
Sat 13/1218:35ORD - BHD
1 stop13h 40mAmerican Airlines
Sun 11/109:10BHD - ORD
2 stops17h 00mAmerican Airlines
Deal found 25/11£632
Sat 13/1218:35ORD - BHD
1 stop10h 35mBritish Airways
Sun 11/120:25BHD - ORD
1 stop25h 00mBritish Airways
Deal found 25/11£670
Tue 30/1220:40ORD - BHD
1 stop14h 05mBritish Airways
Mon 5/119:25BHD - ORD
1 stop27h 35mBritish Airways
Deal found 26/11£844

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 27 November 2025.

Round-trip from

£414
British Airways
  • British Airways
  • 4/2-9/2
  • 2 total stops
  • 37h 10m total
  • Chicago to Belfast
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Chicago to Belfast 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 27 November 2025.
Use the filters below to find and compare flights from Chicago to Belfast that are best for you.

Fly from

Chicago

Fly to

Belfast

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 4/2

17:10-10:15

1 stop11h 05m

Belfast City

Mon 9/2

17:45-13:50

1 stop26h 05m

£414

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 24/2

17:10-10:30

1 stop11h 20m

Belfast City

Mon 2/3

19:25-13:50

1 stop24h 25m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 25/2

17:10-10:15

1 stop11h 05m

Belfast City

Mon 2/3

17:45-18:45

1 stop31h 00m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 25/2

21:45-14:15

1 stop10h 30m

Belfast City

Tue 3/3

06:35-18:45

1 stop18h 10m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 23/2

21:45-16:05

1 stop12h 20m

Belfast City

Tue 3/3

11:25-18:45

1 stop13h 20m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 22/2

21:45-16:50

1 stop13h 05m

Belfast City

Tue 3/3

17:15-13:50

1 stop26h 35m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 23/2

21:45-14:15

1 stop10h 30m

Belfast City

Wed 4/3

15:40-13:50

1 stop28h 10m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 22/2

17:10-13:55

1 stop14h 45m

Belfast City

Thu 5/3

11:05-18:45

1 stop13h 40m

£432

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 22/2

17:10-10:20

1 stop11h 10m

Belfast City

Sun 1/3

12:10-18:45

1 stop12h 35m

£470

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 21/2

17:10-11:10

1 stop12h 00m

Belfast City

Tue 3/3

06:35-13:50

1 stop13h 15m

£470

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 17 results
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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.
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 Chicago to Belfast
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 Chicago to Belfast. 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 Chicago to Belfast?

    Departing from Chicago to Belfast will take you 11h 05m. There are 3644 mi between Chicago and Belfast. This flight may include one or multiple stops.

  • What are the most popular routes from Chicago to Belfast?

    The most popular route from Chicago to Belfast is Chicago O'Hare Intl - Belfast Intl. You may also consider Chicago O'Hare Intl - Belfast City or Chicago Midway - Belfast City.

  • Can I find deals for flights from Chicago to Belfast that include hotel bookings?

    Yes. In addition to deals on Chicago to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Belfast?

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

  • Can I find deals for business class flights from Chicago to Belfast?

    Yes. Cheapflights offers flight deals from Chicago to Belfast 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chicago to Belfast

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

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.

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