Find flights
When to book
FAQs

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
7 May — 14 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 7 April 2026.

Sun 8/1117:10
ORD
-
BHD
1 stop14h 45m
British Airways
Fri 13/1106:45
BHD
-
ORD
1 stop18h 00m
British Airways
Deal found 7/4£653
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£664
Sun 29/1117:10
ORD
-
BHD
1 stop11h 10m
British Airways
Thu 3/1215:05
BHD
-
ORD
1 stop33h 40m
British Airways
Deal found 5/4£667
Sun 8/1115:08
ORD
-
BHD
2 stops13h 12m
American Airlines
Fri 13/1106:45
BHD
-
ORD
1 stop14h 35m
American Airlines
Deal found 6/4£669
Sun 11/1016:20
ORD
-
BHD
1 stop18h 35m
KLM
Mon 19/1017:30
BHD
-
ORD
1 stop26h 45m
KLM
Deal found 4/4£681
Mon 14/919:25
ORD
-
BFS
2 stops19h 15m
Multiple Airlines
Sun 20/907:00
BFS
-
ORD
3 stops42h 15m
Multiple Airlines
Deal found 5/4£697
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£701
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£703
Thu 22/1013:43
ORD
-
BHD
2 stops14h 27m
British Airways
Tue 27/1019:25
BHD
-
ORD
2 stops26h 25m
British Airways
Deal found 4/4£704
Sun 11/1017:00
ORD
-
BHD
1 stop11h 30m
British Airways
Mon 19/1019:35
BHD
-
ORD
2 stops26h 38m
British Airways
Deal found 4/4£706
Sun 11/1019:25
ORD
-
BFS
3 stops20h 30m
Multiple Airlines
Mon 19/1009:10
BFS
-
ORD
2 stops34h 50m
Multiple Airlines
Deal found 4/4£760
Wed 17/609:55
ORD
-
BFS
2 stops29h 15m
Multiple Airlines
Sat 27/613:35
BFS
-
ORD
2 stops28h 15m
Multiple Airlines
Deal found 5/4£766

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 7 April 2026.

Round-trip from

£664

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 7 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

£664
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 1/9

21:15-15:20

1 stop12h 05m

Belfast City

Tue 8/9

09:40-18:15

1 stop14h 35m

£704

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 14/9

16:50-16:55

1 stop18h 05m

Belfast City

Sun 20/9

17:30-14:30

1 stop27h 00m

£719

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 10/8

21:15-15:30

1 stop12h 15m

Belfast City

Mon 17/8

19:35-16:02

2 stops26h 27m

£725

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 12/9

17:50-15:05

1 stop15h 15m

Belfast City

Sun 20/9

06:30-17:55

2 stops17h 25m

£748

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 12/9

16:20-09:15

1 stop10h 55m

Belfast City

Sun 20/9

17:30-14:30

1 stop27h 00m

£757

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 17/6

09:55-21:10

2 stops29h 15m

Belfast Intl

Sat 27/6

13:35-11:50

2 stops28h 15m

£766

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 29/4

11:25-21:00

2 stops27h 35m

Belfast Intl

Sun 3/5

07:00-09:40

2 stops32h 40m

£807

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 10/8

21:00-20:55

2 stops17h 55m

Belfast Intl

Mon 17/8

20:35-21:25

2 stops30h 50m

£812

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Tue 1/9

10:35-09:20

2 stops16h 45m

Belfast City

Tue 8/9

17:30-15:27

2 stops27h 57m

£815

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 53 resultsSorted by cheapest first
1
2
3
...
6

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 15h 15m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Chicago to Northern Ireland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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.

Can Cheapflights notify me if prices for flights from Chicago to Northern Ireland become cheaper?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.