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Cheap flights from Chicago to Belfast from £219

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 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
18 Apr — 25 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 19 March 2026.

Thu 16/411:25
ORD
-
BFS
2 stops30h 00m
Multiple Airlines
Mon 27/406:40
BFS
-
ORD
2 stops33h 00m
Multiple Airlines
Deal found 14/3£566
Wed 7/1017:55
ORD
-
BHD
1 stop12h 05m
American Airlines
Wed 14/1006:30
BHD
-
ORD
1 stop14h 30m
American Airlines
Deal found 16/3£587
Mon 9/1117:10
ORD
-
BHD
1 stop15h 05m
British Airways
Fri 13/1106:45
BHD
-
ORD
1 stop13h 05m
British Airways
Deal found 15/3£588
Wed 7/1013:43
ORD
-
BHD
2 stops16h 17m
British Airways
Wed 14/1010:05
BHD
-
ORD
1 stop11h 50m
British Airways
Deal found 16/3£592
Fri 1/519:15
ORD
-
BFS
3 stops19h 30m
Multiple Airlines
Fri 8/513:45
BFS
-
ORD
2 stops32h 25m
Multiple Airlines
Deal found 17/3£613
Thu 8/1011:25
ORD
-
BFS
2 stops28h 15m
Multiple Airlines
Fri 16/1007:05
BFS
-
ORD
2 stops32h 35m
Multiple Airlines
Deal found 15/3£621
Tue 1/920:40
ORD
-
BHD
1 stop14h 55m
American Airlines
Wed 9/910:05
BHD
-
ORD
1 stop13h 30m
American Airlines
Deal found 17/3£623
Wed 16/921:00
ORD
-
BHD
1 stop12h 40m
American Airlines
Wed 23/911:35
BHD
-
ORD
1 stop12h 00m
American Airlines
Deal found 18/3£623
Mon 7/1221:45
ORD
-
BHD
1 stop10h 30m
British Airways
Wed 9/1215:40
BHD
-
ORD
1 stop28h 10m
British Airways
Deal found 18/3£625
Thu 8/1017:00
ORD
-
BHD
1 stop11h 10m
British Airways
Wed 14/1010:05
BHD
-
ORD
1 stop11h 50m
British Airways
Deal found 15/3£626
Thu 8/1017:00
ORD
-
BHD
1 stop11h 10m
British Airways
Fri 16/1009:35
BHD
-
ORD
1 stop12h 20m
British Airways
Deal found 15/3£634
Sat 9/522:30
ORD
-
BFS
2 stops16h 10m
Multiple Airlines
Sun 17/506:10
BFS
-
ORD
3 stops29h 15m
Multiple Airlines
Deal found 17/3£676

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 19 March 2026.

Round-trip from

£566

One-way from

£219
16/4-27/4
  • 16/4-27/4
  • 4 total stops
  • 63h 00m total
  • Chicago to Belfast
Search Deals
24/4
  • 24/4
  • 2 total stops
  • 51h 50m 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 19 March 2026.
Use the filters below to find and compare flights from Chicago to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 1/5

22:25-21:50

2 stops17h 25m

Belfast Intl

Fri 8/5

06:05-23:07

2 stops23h 02m

£618

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 1/9

12:45-10:45

2 stops16h 00m

Belfast City

Wed 9/9

11:35-23:50

2 stops18h 15m

£635

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 20/8

19:05-15:30

1 stop14h 25m

Belfast City

Mon 31/8

19:35-16:02

2 stops26h 27m

£644
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 28/4

11:22-10:45

2 stops17h 23m

Belfast City

Sun 3/5

11:00-18:15

1 stop13h 15m

£670

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 9/5

22:30-20:40

2 stops16h 10m

Belfast Intl

Sun 17/5

06:10-05:25

3 stops29h 15m

£676

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 28/4

19:25-15:15

2 stops13h 50m

Belfast Intl

Sun 3/5

09:55-11:42

3 stops31h 47m

£681

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 16/4

16:36-15:30

2 stops16h 54m

Belfast City

Mon 27/4

18:30-15:55

1 stop27h 25m

£698

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 6/8

16:16-15:30

2 stops17h 14m

Belfast City

Sat 15/8

09:35-23:12

2 stops19h 37m

£757

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 6/9

21:15-17:40

1 stop14h 25m

Belfast City

Thu 10/9

07:00-17:20

2 stops16h 20m

£759

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 16/4

09:27-09:20

2 stops17h 53m

Belfast City

Mon 27/4

17:30-16:26

2 stops28h 56m

£783

Flights are sorted by cheapest return flights first.

Deals found on 18/3

Showing 1-10 of 37 resultsSorted by cheapest first
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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 16h. 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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