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Cheap flights from Chicago O'Hare Intl Airport to Northern Ireland from £330

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Northern Ireland
Explore the most affordable flight options available from O'Hare Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2026.

Wed 9/919:25
ORD
-
BFS
2 stops15h 40m
Multiple Airlines
Wed 16/907:35
BFS
-
ORD
2 stops19h 50m
Multiple Airlines
Deal found 26/7£552
Mon 7/919:25
ORD
-
BFS
2 stops19h 15m
Multiple Airlines
Mon 14/921:25
BFS
-
ORD
3 stops28h 23m
Multiple Airlines
Deal found 26/7£566
Tue 8/922:25
ORD
-
BHD
2 stops13h 25m
Multiple Airlines
Tue 15/912:50
BHD
-
ORD
3 stops38h 35m
Multiple Airlines
Deal found 24/7£598
Tue 8/919:25
ORD
-
BFS
2 stops18h 15m
Multiple Airlines
Tue 15/908:00
BFS
-
ORD
3 stops40h 15m
Multiple Airlines
Deal found 24/7£600
Wed 9/919:25
ORD
-
BHD
3 stops19h 05m
Multiple Airlines
Wed 16/912:45
BHD
-
ORD
3 stops29h 55m
Multiple Airlines
Deal found 26/7£626
Tue 1/1218:30
ORD
-
BHD
2 stops16h 25m
Multiple Airlines
Tue 8/1212:05
BHD
-
ORD
3 stops34h 50m
Multiple Airlines
Deal found 26/7£635
Tue 1/1217:10
ORD
-
BHD
1 stop11h 20m
British Airways
Wed 9/1212:25
BHD
-
ORD
1 stop12h 20m
British Airways
Deal found 27/7£644
Tue 1/1217:10
ORD
-
BHD
1 stop12h 20m
British Airways
Tue 8/1206:35
BHD
-
ORD
1 stop13h 10m
British Airways
Deal found 26/7£651
Sun 29/1117:10
ORD
-
BHD
1 stop11h 10m
British Airways
Thu 3/1209:05
BHD
-
ORD
1 stop15h 40m
British Airways
Deal found 26/7£664

Find flight deals from O'Hare Intl to Northern Ireland

Keep the following information in mind while searching for O'Hare Intl to Northern Ireland flight deals. Data was last updated 28 July 2026.

Round-trip from

£552

One-way from

£330
9/9-16/9
  • 9/9-16/9
  • 4 total stops
  • 35h 30m total
  • Chicago to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 8/9
  • 2 total stops
  • 33h 27m total
  • Chicago to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl 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 28 July 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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

Wed 9/9

22:25-17:05

2 stops12h 40m

Belfast Intl

Wed 16/9

09:35-12:40

2 stops33h 05m

£578

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 1/12

18:30-20:55

2 stops20h 25m

Belfast Intl

Wed 9/12

10:40-17:20

3 stops36h 40m

£585

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 7/9

22:25-22:00

3 stops17h 35m

Belfast Intl

Mon 14/9

21:25-19:48

3 stops28h 23m

£605

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 8/9

22:25-19:40

2 stops15h 15m

Belfast Intl

Tue 15/9

07:00-21:25

3 stops44h 25m

£621

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 9/9

19:25-20:30

3 stops19h 05m

Belfast City

Wed 16/9

12:45-12:40

3 stops29h 55m

£626

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 1/12

14:35-11:30

2 stops14h 55m

Belfast City

Wed 9/12

11:25-21:00

2 stops15h 35m

£655

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 12/9

22:25-22:40

2 stops18h 15m

Belfast Intl

Sun 20/9

22:05-19:15

2 stops27h 10m

£658

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 29/11

17:10-10:20

1 stop11h 10m

Belfast City

Thu 3/12

09:05-18:45

1 stop15h 40m

£664

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 6/12

21:50-18:40

1 stop14h 50m

Belfast City

Wed 9/12

11:25-18:45

1 stop13h 20m

£664
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 9/9

21:15-15:40

1 stop12h 25m

Belfast City

Wed 16/9

06:30-13:50

1 stop13h 20m

£704

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from O'Hare Intl 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 O'Hare Intl Airport 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 O'Hare Intl 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 O'Hare Intl Airport to Northern Ireland?

    British Airways can get you from Chicago O'Hare Intl Airport to Northern Ireland in just under 14h 55m. Your travel time can differ by up to . Airlines will cover a distance of 3644 mi.

  • Can I find deals for flights from O'Hare Intl to Northern Ireland that include hotel bookings?

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

  • How can I find direct flights from O'Hare Intl to Northern Ireland?

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

  • Can I find deals for business class flights from O'Hare Intl to Northern Ireland?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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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How does Cheapflights help users find flights from O'Hare Intl to Northern Ireland?

Deals for O'Hare Intl to Northern Ireland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl 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 O'Hare Intl.

Can Cheapflights find flights from O'Hare Intl to Northern Ireland with no change fees?

Need flexible booking options for your flight to Northern Ireland from O'Hare Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Northern Ireland become cheaper?

Yes! Start tracking prices for O'Hare Intl to Northern Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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