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Cheap flights from Chicago to Belfast from £224

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
10 Apr — 17 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 11 March 2026.

Thu 23/411:25
ORD
-
BFS
2 stops30h 00m
Multiple Airlines
Wed 29/408:55
BFS
-
ORD
2 stops30h 45m
Multiple Airlines
Deal found 7/3£533
Mon 20/419:05
ORD
-
BHD
1 stop14h 25m
British Airways
Tue 28/409:40
BHD
-
ORD
1 stop14h 35m
British Airways
Deal found 9/3£536
Mon 11/516:50
ORD
-
BHD
1 stop10h 30m
Virgin Atlantic
Mon 18/517:30
BHD
-
ORD
1 stop26h 45m
Virgin Atlantic
Deal found 8/3£558
Wed 29/416:50
ORD
-
BHD
1 stop18h 05m
Multiple Airlines
Mon 4/517:30
BHD
-
ORD
1 stop26h 45m
Multiple Airlines
Deal found 7/3£565
Fri 8/516:05
ORD
-
BFS
2 stops23h 10m
Multiple Airlines
Wed 13/508:30
BFS
-
ORD
3 stops39h 20m
Multiple Airlines
Deal found 6/3£570
Mon 9/321:35
ORD
-
BHD
1 stop11h 40m
American Airlines
Mon 16/309:15
BHD
-
ORD
1 stop12h 10m
American Airlines
Deal found 8/3£574
Mon 11/517:37
ORD
-
BHD
2 stops13h 18m
British Airways
Mon 18/518:30
BHD
-
ORD
1 stop25h 20m
British Airways
Deal found 8/3£576
Thu 23/421:15
ORD
-
BHD
1 stop16h 10m
British Airways
Thu 30/406:30
BHD
-
ORD
1 stop13h 20m
British Airways
Deal found 9/3£580
Tue 1/918:15
ORD
-
BHD
1 stop15h 05m
American Airlines
Thu 10/909:35
BHD
-
ORD
1 stop14h 00m
American Airlines
Deal found 11/3£580
Fri 21/816:16
ORD
-
BHD
2 stops17h 14m
British Airways
Fri 28/806:30
BHD
-
ORD
1 stop15h 25m
British Airways
Deal found 9/3£585
Thu 23/411:25
ORD
-
BFS
2 stops29h 35m
Multiple Airlines
Thu 30/406:35
BFS
-
ORD
2 stops33h 05m
Multiple Airlines
Deal found 9/3£585
Sun 13/921:00
ORD
-
BFS
2 stops18h 30m
Multiple Airlines
Sat 19/911:10
BFS
-
ORD
3 stops36h 40m
Multiple Airlines
Deal found 7/3£609

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 11 March 2026.

Round-trip from

£533

One-way from

£224
23/4-29/4
  • 23/4-29/4
  • 4 total stops
  • 60h 45m total
  • Chicago to Belfast
Search Deals
1/9
  • 1/9
  • 2 total stops
  • 15h 45m 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 11 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
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 20/4

16:36-12:55

2 stops14h 19m

Belfast City

Tue 28/4

09:40-15:55

1 stop12h 15m

£548

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 11/5

16:50-09:20

1 stop10h 30m

Belfast City

Mon 18/5

17:30-14:15

1 stop26h 45m

£558

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 8/5

09:55-21:00

3 stops29h 05m

Belfast Intl

Wed 13/5

08:30-17:50

3 stops39h 20m

£580

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 23/4

11:25-23:00

2 stops29h 35m

Belfast Intl

Thu 30/4

06:35-09:40

2 stops33h 05m

£585

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 1/5

21:15-18:10

1 stop14h 55m

Belfast City

Tue 5/5

20:25-15:55

1 stop25h 30m

£627

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 23/4

06:50-09:20

2 stops20h 30m

Belfast City

Thu 30/4

09:50-23:59

2 stops20h 09m

£649

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 4/4

19:25-20:40

2 stops19h 15m

Belfast Intl

Sat 11/4

16:55-09:40

3 stops46h 45m

£650

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 4/4

17:00-12:25

1 stop13h 25m

Belfast City

Sat 11/4

07:05-21:35

2 stops20h 30m

£654

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 17/4

16:19-15:30

2 stops17h 11m

Belfast City

Sat 25/4

09:35-21:35

2 stops18h 00m

£667

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 15/7

17:00-12:00

1 stop13h 00m

Belfast City

Thu 13/8

09:35-23:22

2 stops19h 47m

£668

Flights are sorted by cheapest return flights first.

Deals found on 11/3

Showing 1-10 of 40 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 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

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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