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Cheap flights from Chicago to Belfast from £181

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
11 Feb — 18 Feb1
1 adult
1 adult, Economy, 0 bags

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 12 January 2026.

Round-trip from

£427

One-way from

£181
British Airways
  • British Airways
  • 11/3-16/3
  • 3 total stops
  • 48h 36m total
  • Chicago to Belfast
Search Deals
1/4
  • 1/4
  • 2 total stops
  • 21h 35m total
  • Chicago to Belfast
Search Deals

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 12 January 2026.

Tue 24/218:30
ORD
-
BFS
2 stops12h 55m
Multiple Airlines
Tue 3/305:45
BFS
-
ORD
3 stops17h 35m
Multiple Airlines
Deal found 10/1£443
Wed 4/317:10
ORD
-
BHD
1 stop11h 05m
British Airways
Sun 8/306:30
BHD
-
ORD
1 stop18h 15m
British Airways
Deal found 11/1£468
Wed 18/318:54
ORD
-
BHD
2 stops14h 21m
British Airways
Sun 22/320:25
BHD
-
ORD
2 stops45h 00m
British Airways
Deal found 12/1£474
Sat 14/319:58
ORD
-
BHD
2 stops33h 22m
British Airways
Sun 22/320:25
BHD
-
ORD
2 stops45h 00m
British Airways
Deal found 11/1£477
Fri 4/921:15
ORD
-
BHD
1 stop14h 55m
British Airways
Sun 13/911:00
BHD
-
ORD
1 stop13h 15m
British Airways
Deal found 12/1£515
Sat 14/315:19
ORD
-
BHD
2 stops17h 56m
British Airways
Sat 21/306:35
BHD
-
ORD
2 stops18h 08m
British Airways
Deal found 12/1£596
Fri 20/320:50
ORD
-
BHD
2 stops36h 25m
British Airways
Sat 28/311:35
BHD
-
ORD
2 stops27h 28m
British Airways
Deal found 11/1£605
Mon 1/619:05
ORD
-
BFS
2 stops19h 50m
Multiple Airlines
Mon 15/608:40
BFS
-
ORD
2 stops39h 35m
Multiple Airlines
Deal found 10/1£691
Sat 14/312:50
ORD
-
BFS
2 stops27h 50m
Multiple Airlines
Sat 21/307:20
BFS
-
ORD
2 stops32h 45m
Multiple Airlines
Deal found 12/1£768
Wed 11/319:30
ORD
-
BFS
2 stops15h 40m
Multiple Airlines
Mon 16/305:45
BFS
-
ORD
1 stop20h 10m
Multiple Airlines
Deal found 9/1£797
Sat 14/318:34
MDW
-
BHD
2 stops17h 16m
KLM
Sun 22/306:30
BHD
-
MDW
2 stops17h 10m
KLM
Deal found 11/1£2,065
Wed 1/713:00
MDW
-
BHD
2 stops14h 20m
KLM
Fri 10/709:50
BHD
-
MDW
2 stops17h 56m
KLM
Deal found 11/1£3,149

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 12 January 2026.
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 - BFS

ORDBFS

Chicago O'Hare Intl

Tue 24/2

18:30-13:25

2 stops12h 55m

Belfast Intl

Tue 3/3

05:45-17:20

3 stops17h 35m

£443

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 4/3

21:45-14:15

1 stop10h 30m

Belfast City

Sun 8/3

06:30-18:45

1 stop18h 15m

£468

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 18/3

18:54-14:15

2 stops14h 21m

Belfast City

Sun 22/3

20:25-12:25

2 stops45h 00m

£474

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 14/3

19:58-10:20

2 stops33h 22m

Belfast City

Sun 22/3

20:25-12:25

2 stops45h 00m

£477

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 14/3

15:19-14:15

2 stops17h 56m

Belfast City

Sat 21/3

06:35-19:43

2 stops18h 08m

£596

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 1/6

19:05-20:55

2 stops19h 50m

Belfast Intl

Mon 15/6

08:40-18:15

2 stops39h 35m

£691

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 14/3

12:50-21:40

2 stops27h 50m

Belfast Intl

Sat 21/3

07:20-11:05

2 stops32h 45m

£768

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 11/3

19:30-16:10

2 stops15h 40m

Belfast Intl

Mon 16/3

05:45-20:55

1 stop20h 10m

£797

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sat 14/3

18:34-16:50

2 stops17h 16m

Belfast City

Sun 22/3

06:30-18:40

2 stops17h 10m

£2,065

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 1/7

13:00-09:20

2 stops14h 20m

Belfast City

Fri 10/7

09:50-21:46

2 stops17h 56m

£3,149

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 13 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 10h 30m. 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

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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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