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Cheap flights from Chicago to Belfast from £204

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
10 Jul — 17 Jul1
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 10 June 2026.

Wed 2/919:25
ORD
-
BFS
2 stops21h 45m
Multiple Airlines
Sat 12/1206:00
BFS
-
ORD
3 stops39h 30m
Multiple Airlines
Deal found 6/6£580
Tue 1/922:25
ORD
-
BFS
2 stops18h 55m
Multiple Airlines
Sat 12/1206:00
BFS
-
ORD
3 stops39h 30m
Multiple Airlines
Deal found 6/6£583
Sun 2/819:25
ORD
-
BFS
2 stops19h 55m
Multiple Airlines
Tue 18/822:45
BFS
-
ORD
2 stops29h 20m
Multiple Airlines
Deal found 9/6£604
Sun 2/809:50
ORD
-
BHD
2 stops29h 00m
Multiple Airlines
Tue 18/807:00
BHD
-
ORD
3 stops19h 05m
Multiple Airlines
Deal found 9/6£638
Wed 2/919:25
ORD
-
BHD
2 stops13h 40m
Multiple Airlines
Sat 12/1207:25
BHD
-
ORD
3 stops38h 05m
Multiple Airlines
Deal found 5/6£641
Fri 9/1022:25
ORD
-
BFS
2 stops17h 25m
Multiple Airlines
Sun 18/1012:20
BFS
-
ORD
3 stops36h 55m
Multiple Airlines
Deal found 8/6£641
Sun 18/1017:00
ORD
-
BHD
1 stop11h 30m
British Airways
Tue 20/1016:25
BHD
-
ORD
1 stop29h 30m
British Airways
Deal found 7/6£662
Mon 16/1121:45
ORD
-
BHD
1 stop12h 20m
British Airways
Mon 30/1106:35
BHD
-
ORD
1 stop13h 15m
British Airways
Deal found 9/6£674
Mon 16/1118:30
ORD
-
BFS
2 stops18h 35m
Multiple Airlines
Mon 30/1118:25
BFS
-
ORD
3 stops28h 55m
Multiple Airlines
Deal found 9/6£682
Tue 1/921:15
ORD
-
BHD
1 stop12h 05m
British Airways
Wed 30/906:30
BHD
-
ORD
1 stop15h 25m
British Airways
Deal found 6/6£687
Fri 23/1021:15
ORD
-
BHD
1 stop12h 15m
British Airways
Mon 26/1019:25
BHD
-
ORD
1 stop25h 55m
British Airways
Deal found 5/6£693
Fri 23/1019:25
ORD
-
BFS
2 stops20h 25m
Multiple Airlines
Mon 26/1021:30
BFS
-
ORD
3 stops48h 00m
Multiple Airlines
Deal found 5/6£695

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 10 June 2026.

Round-trip from

£580

One-way from

£204
2/9-12/12
  • 2/9-12/12
  • 5 total stops
  • 61h 15m total
  • Chicago to Belfast
Search Deals
25/7
  • 25/7
  • 2 total stops
  • 30h 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 10 June 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

Sun 2/8

09:50-22:50

2 stops31h 00m

Belfast Intl

Tue 18/8

05:55-20:05

3 stops20h 10m

£618

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 9/10

22:25-21:50

2 stops17h 25m

Belfast Intl

Sun 18/10

12:20-19:15

3 stops36h 55m

£641
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 13/9

21:15-14:35

1 stop11h 20m

Belfast City

Wed 16/9

11:35-18:15

1 stop12h 40m

£662

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 16/11

21:45-16:05

1 stop12h 20m

Belfast City

Mon 30/11

06:35-13:50

1 stop13h 15m

£674

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 16/11

18:30-19:05

2 stops18h 35m

Belfast Intl

Mon 30/11

18:25-17:20

3 stops28h 55m

£682

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 2/9

19:05-13:35

1 stop12h 30m

Belfast City

Tue 29/9

09:40-15:55

1 stop12h 15m

£703

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 2/8

16:20-09:20

1 stop11h 00m

Belfast City

Tue 18/8

17:30-14:30

1 stop27h 00m

£716

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 20/7

19:25-22:15

2 stops20h 50m

Belfast Intl

Mon 27/7

06:30-19:52

2 stops19h 22m

£721

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 2/9

16:39-16:55

2 stops18h 16m

Belfast City

Tue 29/9

17:30-18:11

2 stops30h 41m

£727

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 2/9

16:39-16:55

2 stops18h 16m

Belfast City

Wed 30/9

17:30-18:33

2 stops31h 03m

£727

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 50 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 11h. 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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