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Cheap flights from Chicago to Northern Ireland from £236

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BFS
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Chicago to Northern Ireland

Keep the following information in mind while searching for Chicago to Northern Ireland flight deals. Data was last updated 17 September 2025.

Round-trip from

£463

One-way from

£236
British Airways
  • British Airways
  • 5/12-9/12
  • 2 total stops
  • 28h 15m total
  • Chicago to Northern Ireland
Search Deals
28/9
  • 28/9
  • 3 total stops
  • 43h 10m total
  • Chicago to Northern Ireland
Search Deals

Find flight deals from Chicago to Northern Ireland

Cheapest flights from Chicago to Northern Ireland
Explore the most affordable flight options available from Chicago to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Fri 5/1221:45ORD - BHD
1 stop13h 30mBritish Airways
Tue 9/1210:00BHD - ORD
1 stop14h 45mBritish Airways
Deal found 14/9£463
Thu 30/1018:10ORD - BHD
1 stop19h 40mBritish Airways
Mon 10/1114:50BHD - ORD
1 stop29h 00mBritish Airways
Deal found 14/9£470
Fri 3/1016:15ORD - BHD
1 stop18h 40mVirgin Atlantic
Tue 7/1006:30BHD - ORD
1 stop13h 40mVirgin Atlantic
Deal found 16/9£500
Fri 5/1215:45ORD - BHD
2 stops19h 05mDelta
Tue 9/1217:20BHD - ORD
1 stop27h 00mDelta
Deal found 16/9£504
Fri 31/1018:10ORD - BHD
1 stop11h 20mBritish Airways
Mon 10/1114:50BHD - ORD
1 stop33h 55mBritish Airways
Deal found 15/9£511
Fri 17/1018:23MDW - BHD
2 stops20h 52mDelta
Tue 21/1006:30BHD - MDW
2 stops17h 55mDelta
Deal found 16/9£511
Fri 3/1016:15ORD - BHD
1 stop23h 00mDelta
Tue 7/1006:30BHD - ORD
1 stop13h 40mDelta
Deal found 14/9£529
Fri 31/1021:15ORD - BFS
3 stops20h 30mMultiple Airlines
Mon 10/1122:20BFS - ORD
3 stops46h 40mMultiple Airlines
Deal found 14/9£532
Fri 26/916:15ORD - BHD
1 stop18h 40mMultiple Airlines
Wed 1/1006:30BHD - ORD
2 stops15h 50mMultiple Airlines
Deal found 15/9£537
Fri 31/1021:15ORD - BFS
3 stops20h 30mMultiple Airlines
Fri 7/1121:30BFS - ORD
3 stops47h 15mMultiple Airlines
Deal found 16/9£537
Fri 3/1009:20MDW - BHD
2 stops29h 55mDelta
Tue 7/1006:30BHD - MDW
2 stops17h 55mDelta
Deal found 15/9£540
Sat 4/1017:40ORD - BHD
1 stop10h 30mAmerican Airlines
Sat 11/1007:05BHD - ORD
2 stops16h 31mAmerican Airlines
Deal found 17/9£543

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chicago to Northern Ireland 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 17 September 2025.
Use the filters below to find and compare flights from Chicago to Northern Ireland that are best for you.

Fly from

Chicago

Fly to

Northern Ireland

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 5/12

21:45-17:15

1 stop13h 30m

Belfast City

Tue 9/12

10:00-18:45

1 stop14h 45m

£463

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 30/10

18:10-18:50

1 stop19h 40m

Belfast City

Mon 10/11

14:50-13:50

1 stop29h 00m

£470

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/10

16:15-16:55

1 stop18h 40m

Belfast City

Tue 7/10

06:30-14:10

1 stop13h 40m

£500

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 5/12

16:25-16:50

1 stop18h 25m

Belfast City

Tue 9/12

17:20-14:20

1 stop27h 00m

£500

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 31/10

18:10-10:30

1 stop11h 20m

Belfast City

Mon 10/11

14:50-18:45

1 stop33h 55m

£511

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/10

16:15-21:15

1 stop23h 00m

Belfast City

Tue 7/10

06:30-14:10

1 stop13h 40m

£529

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 31/10

21:15-22:45

3 stops20h 30m

Belfast Intl

Fri 7/11

21:30-14:45

3 stops47h 15m

£537

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 3/10

09:20-21:15

2 stops29h 55m

Belfast City

Tue 7/10

06:30-18:25

2 stops17h 55m

£540

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 17/10

13:08-21:15

2 stops26h 07m

Belfast City

Tue 21/10

06:30-18:25

2 stops17h 55m

£540

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 4/10

17:40-10:10

1 stop10h 30m

Belfast City

Sat 11/10

07:05-17:36

2 stops16h 31m

£543

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 27 results
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Best time to book a flight from Chicago to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland 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 Northern Ireland
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 Northern Ireland. 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 Northern Ireland?

    Departing from Chicago to Northern Ireland will take you 13h 30m. The distance from Chicago to Northern Ireland is about 3644 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Chicago to Northern Ireland?

    The most popular flight routes from Chicago to Northern Ireland are Chicago O'Hare Intl - Belfast Intl, Chicago O'Hare Intl - Belfast City and Chicago Midway - Belfast City.

  • Can I find deals for flights from Chicago to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Chicago to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Northern Ireland.

  • Can I find deals for business class flights from Chicago to Northern Ireland?

    Yes. Cheapflights offers flight deals from Chicago to Northern Ireland 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 Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Northern Ireland (average of £67). Flying from Chicago to Northern Ireland 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 Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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