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Cheap flights from Chicago to Northern Ireland from £234

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BFS
5 May — 12 May1
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 5 April 2026.

Sun 8/1117:10
ORD
-
BHD
1 stop11h 10m
British Airways
Fri 13/1106:45
BHD
-
ORD
1 stop13h 05m
British Airways
Deal found 4/4£655
Sun 25/1021:15
ORD
-
BFS
2 stops16h 40m
Multiple Airlines
Sun 1/1123:05
BFS
-
ORD
3 stops24h 15m
Multiple Airlines
Deal found 1/4£661
Mon 18/508:45
ORD
-
BFS
3 stops24h 50m
Multiple Airlines
Tue 26/520:15
BFS
-
ORD
3 stops28h 00m
Multiple Airlines
Deal found 4/4£665
Sun 29/1117:10
ORD
-
BHD
1 stop11h 10m
British Airways
Thu 3/1220:00
BHD
-
ORD
1 stop23h 50m
British Airways
Deal found 2/4£668
Sun 6/921:15
ORD
-
BHD
1 stop11h 20m
British Airways
Tue 8/920:25
BHD
-
ORD
1 stop25h 30m
British Airways
Deal found 31/3£669
Sun 8/1115:08
ORD
-
BHD
2 stops13h 12m
American Airlines
Fri 13/1108:45
BHD
-
ORD
1 stop14h 20m
American Airlines
Deal found 4/4£670
Sun 11/1016:20
ORD
-
BHD
1 stop18h 35m
KLM
Mon 19/1017:30
BHD
-
ORD
1 stop26h 45m
KLM
Deal found 4/4£682
Tue 1/918:10
ORD
-
BHD
2 stops16h 45m
Multiple Airlines
Wed 9/917:30
BHD
-
ORD
1 stop26h 45m
Multiple Airlines
Deal found 31/3£686
Tue 1/916:16
ORD
-
BHD
2 stops17h 04m
British Airways
Wed 9/911:35
BHD
-
ORD
1 stop12h 40m
British Airways
Deal found 31/3£692
Sun 25/1018:10
ORD
-
BHD
1 stop14h 45m
British Airways
Sun 1/1120:25
BHD
-
ORD
1 stop23h 25m
British Airways
Deal found 1/4£702
Tue 1/912:45
ORD
-
BHD
2 stops16h 00m
British Airways
Tue 8/906:30
BHD
-
ORD
2 stops16h 37m
British Airways
Deal found 4/4£703
Thu 22/1022:35
ORD
-
BHD
1 stop14h 10m
American Airlines
Tue 27/1006:35
BHD
-
ORD
1 stop14h 45m
American Airlines
Deal found 4/4£704

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 5 April 2026.

Round-trip from

£665

One-way from

£234
18/5-26/5
  • 18/5-26/5
  • 6 total stops
  • 52h 50m total
  • Chicago to Northern Ireland
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 14h 55m 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 5 April 2026.
Use the filters below to find and compare flights from Chicago to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 18/5

08:45-15:35

3 stops24h 50m

Belfast Intl

Tue 26/5

20:15-18:15

3 stops28h 00m

£665

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 6/9

21:15-14:35

1 stop11h 20m

Belfast City

Tue 8/9

20:25-15:55

1 stop25h 30m

£669

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 1/9

16:16-15:20

2 stops17h 04m

Belfast City

Wed 9/9

11:35-18:15

1 stop12h 40m

£692

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 1/9

18:10-16:55

2 stops16h 45m

Belfast City

Wed 9/9

09:50-21:36

2 stops17h 46m

£694

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 1/9

12:45-10:45

2 stops16h 00m

Belfast City

Tue 8/9

06:30-17:07

2 stops16h 37m

£703

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 29/4

16:05-22:30

2 stops24h 25m

Belfast Intl

Sun 3/5

16:30-12:35

2 stops26h 05m

£726

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 29/4

19:25-15:05

2 stops13h 40m

Belfast City

Sun 3/5

07:00-21:25

2 stops20h 25m

£733

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 26/7

14:20-21:50

2 stops25h 30m

Belfast Intl

Sat 8/8

07:40-11:50

2 stops34h 10m

£743

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 1/10

21:15-19:25

1 stop16h 10m

Belfast City

Sun 11/10

11:00-21:25

2 stops16h 25m

£759

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 22/7

19:05-22:20

2 stops21h 15m

Belfast Intl

Wed 29/7

08:30-11:50

2 stops33h 20m

£763

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 53 resultsSorted by cheapest first
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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 11h 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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Why should you use Cheapflights to find cheap flight tickets from Chicago to Northern Ireland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Northern Ireland from Chicago.

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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Not ready to book yet? You can track prices for flights from Chicago to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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