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Cheap flights from Chicago to Northern Ireland from £275

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BFS
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chicago to Northern Ireland

Enter your travel dates to find the best prices.

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 12 December 2025.

Tue 30/1215:50ORD - BHD
2 stops14h 25mMultiple Airlines
Mon 5/111:50BHD - ORD
2 stops33h 35mMultiple Airlines
Deal found 11/12£1,168
Tue 30/1220:40ORD - BHD
1 stop12h 10mBritish Airways
Mon 5/119:25BHD - ORD
1 stop27h 35mBritish Airways
Deal found 10/12£1,470

Find 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 12 December 2025.

Round-trip from

£483

One-way from

£275
24/1-31/1
  • 24/1-31/1
  • 4 total stops
  • 28h 25m total
  • Chicago to Northern Ireland
Search Deals
9/4
  • 9/4
  • 2 total stops
  • 33h 45m total
  • Chicago to Northern Ireland
Search Deals

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 12 December 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 - BFS

ORDBFS

Chicago O'Hare Intl

Sat 24/1

18:30-13:30

2 stops13h 00m

Belfast Intl

Sat 31/1

07:55-17:20

2 stops15h 25m

£483

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 1/4

21:15-15:35

1 stop12h 20m

Belfast City

Tue 7/4

06:35-20:02

2 stops19h 27m

£500

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 1/4

22:35-18:40

1 stop14h 05m

Belfast City

Tue 7/4

06:35-17:52

2 stops17h 17m

£506

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 20/2

16:11-14:15

2 stops16h 04m

Belfast City

Fri 27/2

11:30-18:45

1 stop13h 15m

£515

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 24/1

18:30-14:25

2 stops13h 55m

Belfast City

Sat 31/1

07:15-17:20

2 stops16h 05m

£520

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 24/1

20:55-16:50

2 stops37h 55m

Belfast City

Sat 31/1

15:05-13:50

1 stop28h 45m

£523

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 1/4

11:15-09:20

2 stops16h 05m

Belfast City

Tue 7/4

09:50-22:01

2 stops18h 11m

£525

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 11/2

17:10-14:15

1 stop15h 05m

Belfast City

Sun 15/2

20:25-13:50

1 stop23h 25m

£525

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 25/2

21:45-16:35

1 stop12h 50m

Belfast City

Sun 1/3

20:25-18:45

1 stop28h 20m

£525

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 16/3

19:30-20:15

2 stops19h 45m

Belfast Intl

Fri 20/3

08:05-21:00

3 stops41h 55m

£605

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 21 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 12h 20m. 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.

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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How does Cheapflights help users find flights from Chicago to Northern Ireland?

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Chicago to Northern Ireland flexibly with Cheapflights today.

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