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Cheap flights from Chicago to Northern Ireland from £312

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 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BFS
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

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 4 November 2025.

Round-trip from

£534

One-way from

£312
British Airways
  • British Airways
  • 18/3-22/3
  • 2 total stops
  • 42h 10m total
  • Chicago to Northern Ireland
Search Deals
17/4
  • 17/4
  • 2 total stops
  • 40h 00m total
  • Chicago to Northern Ireland
Search Deals

Find 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 4 November 2025.

Sat 15/1118:30ORD - BFS
2 stops22h 10mMultiple Airlines
Tue 18/1106:30BFS - ORD
3 stops38h 30mMultiple Airlines
Deal found 1/11£539
Wed 3/1216:25ORD - BHD
1 stop22h 35mVirgin Atlantic
Sun 7/1206:30BHD - ORD
1 stop13h 50mVirgin Atlantic
Deal found 2/11£542
Wed 3/1216:25ORD - BHD
1 stop22h 35mKLM
Sun 7/1206:30BHD - ORD
1 stop13h 50mKLM
Deal found 1/11£582
Wed 3/1213:17ORD - BHD
2 stops13h 53mAmerican Airlines
Sun 7/1206:30BHD - ORD
1 stop13h 20mAmerican Airlines
Deal found 1/11£736
Tue 30/1220:40ORD - BHD
1 stop12h 10mAmerican Airlines
Mon 5/106:35BHD - ORD
2 stops17h 21mAmerican Airlines
Deal found 3/11£803
Tue 30/1217:10ORD - BHD
1 stop12h 20mBritish Airways
Mon 5/119:25BHD - ORD
1 stop27h 35mBritish Airways
Deal found 3/11£810
Wed 17/1218:30ORD - BFS
2 stops15h 40mMultiple Airlines
Wed 24/1216:25BFS - ORD
3 stops33h 35mMultiple Airlines
Deal found 1/11£835
Fri 21/1119:40ORD - BHD
2 stops15h 45mAer Lingus
Fri 28/1106:50BHD - ORD
2 stops17h 05mAer Lingus
Deal found 1/11£951
Fri 21/1116:25ORD - BHD
1 stop22h 35mKLM
Fri 28/1106:30BHD - ORD
1 stop13h 50mKLM
Deal found 2/11£1,029
Fri 21/1110:35ORD - BHD
2 stops24h 15mDelta
Fri 28/1106:30BHD - ORD
1 stop13h 50mDelta
Deal found 2/11£1,032

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 4 November 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

Wed 18/3

22:45-14:15

1 stop10h 30m

Belfast City

Sun 22/3

12:10-14:50

1 stop31h 40m

£534

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 15/11

18:30-22:40

2 stops22h 10m

Belfast Intl

Tue 18/11

06:30-15:00

3 stops38h 30m

£539

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 18/3

22:45-14:15

1 stop10h 30m

Belfast City

Sun 22/3

09:10-22:48

2 stops18h 38m

£541

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/12

16:25-21:00

1 stop22h 35m

Belfast City

Sun 7/12

06:30-14:20

1 stop13h 50m

£542

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/4

19:05-15:30

1 stop14h 25m

Belfast City

Tue 7/4

06:35-13:50

1 stop13h 15m

£546

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/4

18:10-16:55

2 stops16h 45m

Belfast City

Tue 7/4

06:30-14:20

1 stop13h 50m

£565

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 1/4

09:20-16:55

2 stops25h 35m

Belfast City

Sun 5/4

17:25-09:56

2 stops46h 31m

£577

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/12

16:25-21:00

1 stop22h 35m

Belfast City

Sun 7/12

06:30-14:20

1 stop13h 50m

£582

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 3/4

09:30-21:20

2 stops29h 50m

Belfast City

Tue 7/4

17:25-18:08

2 stops30h 43m

£645

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 17/12

18:30-16:10

2 stops15h 40m

Belfast Intl

Wed 24/12

16:25-20:00

3 stops33h 35m

£835

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 18 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 10h 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.

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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Can Cheapflights find flights from Chicago to Northern Ireland with no change fees?

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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