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Cheap flights from Chicago to Belfast from £197

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
27 Mar — 3 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 25 February 2026.

Mon 7/916:50
ORD
-
BHD
1 stop10h 30m
KLM
Mon 21/917:30
BHD
-
ORD
1 stop26h 45m
KLM
Deal found 22/2£506
Mon 30/316:50
ORD
-
BHD
1 stop18h 05m
Multiple Airlines
Tue 7/417:30
BHD
-
ORD
1 stop27h 00m
Multiple Airlines
Deal found 23/2£507
Mon 7/919:05
ORD
-
BHD
1 stop14h 25m
British Airways
Mon 21/919:35
BHD
-
ORD
2 stops27h 45m
British Airways
Deal found 22/2£510
Mon 30/310:40
ORD
-
BHD
2 stops16h 40m
KLM
Tue 7/417:30
BHD
-
ORD
1 stop27h 00m
KLM
Deal found 23/2£510
Fri 27/218:30
ORD
-
BHD
1 stop13h 45m
American Airlines
Tue 3/306:35
BHD
-
ORD
1 stop14h 50m
American Airlines
Deal found 24/2£522
Mon 14/917:00
ORD
-
BHD
1 stop13h 55m
British Airways
Sun 20/915:50
BHD
-
ORD
1 stop30h 05m
British Airways
Deal found 24/2£525
Wed 8/419:25
ORD
-
BFS
2 stops15h 40m
Multiple Airlines
Wed 15/407:20
BFS
-
ORD
2 stops16h 55m
Multiple Airlines
Deal found 22/2£528
Mon 14/917:50
ORD
-
BHD
1 stop13h 05m
American Airlines
Sun 20/906:30
BHD
-
ORD
2 stops16h 50m
American Airlines
Deal found 24/2£541
Fri 7/817:30
ORD
-
BHD
2 stops16h 00m
British Airways
Mon 21/1219:25
BHD
-
ORD
2 stops41h 54m
British Airways
Deal found 22/2£562
Fri 10/419:25
ORD
-
BFS
3 stops21h 55m
Multiple Airlines
Fri 17/419:55
BFS
-
ORD
3 stops27h 55m
Multiple Airlines
Deal found 24/2£601
Mon 7/922:25
ORD
-
BFS
2 stops16h 15m
Multiple Airlines
Mon 21/920:55
BFS
-
ORD
2 stops25h 00m
Multiple Airlines
Deal found 22/2£713
Sun 24/519:25
ORD
-
BFS
2 stops20h 05m
Multiple Airlines
Thu 4/606:10
BFS
-
ORD
3 stops41h 14m
Multiple Airlines
Deal found 23/2£756

Find 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 25 February 2026.

Round-trip from

£507

One-way from

£197
KLM
  • KLM
  • 30/3-7/4
  • 2 total stops
  • 45h 05m total
  • Chicago to Belfast
Search Deals
17/3
  • 17/3
  • 2 total stops
  • 47h 49m total
  • Chicago to Belfast
Search Deals

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 25 February 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 - BHD

ORDBHD

Chicago O'Hare Intl

Mon 30/3

16:50-16:55

1 stop18h 05m

Belfast City

Tue 7/4

17:30-14:30

1 stop27h 00m

£507

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 30/3

10:40-09:20

2 stops16h 40m

Belfast City

Tue 7/4

09:50-22:16

2 stops18h 26m

£571

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 10/4

19:25-23:20

3 stops21h 55m

Belfast Intl

Fri 17/4

19:55-17:50

3 stops27h 55m

£601

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 18/3

15:16-14:15

2 stops17h 59m

Belfast City

Sun 22/3

20:25-12:25

2 stops45h 00m

£718

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 24/5

07:10-21:00

3 stops31h 50m

Belfast Intl

Thu 4/6

06:10-17:24

3 stops41h 14m

£773

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 19/7

22:35-17:40

1 stop13h 05m

Belfast City

Sat 25/7

16:15-12:30

1 stop26h 15m

£793

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 19/7

15:45-14:10

2 stops16h 25m

Belfast City

Sat 1/8

17:55-14:00

2 stops26h 05m

£796

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 19/7

17:00-10:30

1 stop11h 30m

Belfast City

Sat 1/8

17:55-14:00

2 stops26h 05m

£809

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 4/7

11:05-09:35

3 stops16h 30m

Belfast Intl

Sat 11/7

15:35-11:50

2 stops26h 15m

£821

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 4/7

21:15-08:40

1 stop29h 25m

Belfast City

Sat 11/7

12:40-11:30

2 stops28h 50m

£831

Flights are sorted by cheapest return flights first.

Deals found on 22/2

Showing 1-10 of 27 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 13h 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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