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Cheap flights from Chicago to Belfast from £184

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
8 Sep — 15 Sep1
1 adult

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 3 September 2025.

Round-trip from

£477

One-way from

£184
American Airlines
  • American Airlines
  • 16/9-23/9
  • 2 total stops
  • 38h 20m total
  • Chicago to Belfast
Search Deals
15/10
  • 15/10
  • 2 total stops
  • 43h 10m total
  • Chicago to Belfast
Search Deals

Find flight deals from Chicago to Belfast

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 3 September 2025.

Tue 16/922:35ORD - BHD
1 stop12h 55mAmerican Airlines
Tue 23/916:25BHD - ORD
1 stop25h 25mAmerican Airlines
Deal found 3/9£477
Mon 29/922:35ORD - BHD
1 stop15h 00mBritish Airways
Mon 13/1019:30BHD - ORD
1 stop24h 20mBritish Airways
Deal found 2/9£481
Thu 30/1018:10ORD - BHD
1 stop11h 10mBritish Airways
Mon 10/1119:25BHD - ORD
1 stop24h 25mBritish Airways
Deal found 2/9£483
Wed 12/1117:10ORD - BHD
1 stop15h 05mBritish Airways
Sun 16/1112:10BHD - ORD
1 stop12h 35mBritish Airways
Deal found 2/9£518
Wed 3/916:40ORD - BHD
1 stop22h 35mKLM
Wed 10/906:30BHD - ORD
1 stop14h 10mKLM
Deal found 2/9£533
Thu 30/1014:20ORD - BFS
2 stops26h 45mMultiple Airlines
Mon 10/1122:20BFS - ORD
3 stops46h 40mMultiple Airlines
Deal found 2/9£542
Tue 16/915:45ORD - BFS
2 stops18h 55mMultiple Airlines
Tue 23/905:55BFS - ORD
2 stops14h 05mMultiple Airlines
Deal found 3/9£550
Wed 15/1015:45ORD - BFS
2 stops20h 50mMultiple Airlines
Wed 22/1005:45BFS - ORD
2 stops19h 15mMultiple Airlines
Deal found 2/9£555
Thu 16/1018:00ORD - BFS
3 stops23h 30mMultiple Airlines
Thu 23/1006:10BFS - ORD
3 stops33h 41mMultiple Airlines
Deal found 1/9£558
Wed 17/918:55ORD - BHD
2 stops14h 40mBritish Airways
Wed 24/918:15BHD - ORD
2 stops27h 30mBritish Airways
Deal found 2/9£561
Wed 12/1116:25ORD - BHD
1 stop22h 35mDelta
Sun 16/1106:30BHD - ORD
1 stop13h 50mDelta
Deal found 31/8£570
Fri 17/1009:35MDW - BHD
2 stops25h 20mDelta
Tue 21/1017:25BHD - MDW
2 stops31h 00mDelta
Deal found 2/9£581

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 3 September 2025.
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

Tue 16/9

22:35-17:30

1 stop12h 55m

Belfast City

Tue 23/9

16:25-11:50

1 stop25h 25m

£477

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 29/9

22:35-19:35

1 stop15h 00m

Belfast City

Mon 13/10

19:30-13:50

1 stop24h 20m

£481

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 30/10

18:10-10:20

1 stop11h 10m

Belfast City

Mon 10/11

19:25-13:50

1 stop24h 25m

£483

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 5/2

17:10-10:20

1 stop11h 10m

Belfast City

Sun 8/2

06:30-13:50

1 stop13h 20m

£504

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 5/2

13:54-10:20

2 stops14h 26m

Belfast City

Sun 8/2

09:10-17:00

1 stop13h 50m

£509

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 12/11

17:10-14:15

1 stop15h 05m

Belfast City

Sun 16/11

12:10-18:45

1 stop12h 35m

£518

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 30/10

14:20-22:05

2 stops26h 45m

Belfast Intl

Mon 10/11

22:20-15:00

3 stops46h 40m

£542

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 16/9

15:45-16:40

2 stops18h 55m

Belfast Intl

Tue 23/9

05:55-14:00

2 stops14h 05m

£550

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 15/10

15:45-18:35

2 stops20h 50m

Belfast Intl

Wed 22/10

05:45-19:00

2 stops19h 15m

£555

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 16/10

18:00-23:30

3 stops23h 30m

Belfast Intl

Thu 23/10

06:10-09:51

3 stops33h 41m

£558

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 30 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 12h 55m. There are 3644 mi between Chicago and Belfast. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago to Belfast one-way?

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £660. However, be on the lookout for offers from Virgin Atlantic and KLM, as they are both options that can get you from Chicago to Belfast for a low price.

  • 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 Intl.

  • 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.

  • What is the cheapest month to book a flight from Chicago to Belfast?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Belfast (average of £67). Flying from Chicago to Belfast in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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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