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Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £322

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
24 Mar — 31 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to O'Hare Intl
Explore the most affordable flight options available from Northern Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2026.

Mon 13/415:35
BFS
-
ORD
2 stops32h 40m
Multiple Airlines
Mon 20/419:25
ORD
-
BFS
3 stops21h 55m
Multiple Airlines
Deal found 18/2£540
Mon 13/414:30
BHD
-
ORD
2 stops33h 45m
Multiple Airlines
Mon 20/419:25
ORD
-
BHD
2 stops15h 25m
Multiple Airlines
Deal found 18/2£574
Mon 13/406:30
BHD
-
ORD
1 stop11h 50m
American Airlines
Mon 20/419:05
ORD
-
BHD
1 stop11h 50m
American Airlines
Deal found 18/2£598
Mon 13/417:30
BHD
-
ORD
1 stop26h 45m
Virgin Atlantic
Mon 20/411:00
ORD
-
BHD
2 stops16h 20m
Virgin Atlantic
Deal found 18/2£613
Thu 19/306:35
BHD
-
ORD
2 stops22h 41m
British Airways
Mon 23/319:40
ORD
-
BHD
1 stop13h 35m
British Airways
Deal found 21/2£657
Mon 23/207:00
BHD
-
ORD
3 stops43h 20m
Multiple Airlines
Wed 25/221:50
ORD
-
BHD
2 stops17h 00m
Multiple Airlines
Deal found 19/2£794
Thu 9/408:10
BFS
-
ORD
2 stops37h 50m
Multiple Airlines
Sun 12/418:00
ORD
-
BFS
2 stops21h 50m
Multiple Airlines
Deal found 19/2£813
Thu 26/220:00
BHD
-
ORD
1 stop25h 25m
British Airways
Mon 2/316:10
ORD
-
BHD
2 stops16h 05m
British Airways
Deal found 18/2£842
Mon 23/208:30
BFS
-
ORD
2 stops14h 50m
Multiple Airlines
Wed 25/218:30
ORD
-
BFS
2 stops15h 00m
Multiple Airlines
Deal found 19/2£1,460

Find flight deals from Northern Ireland to O'Hare Intl

Keep the following information in mind while searching for Northern Ireland to O'Hare Intl flight deals. Data was last updated 22 February 2026.

Round-trip from

£540

One-way from

£322
13/4-20/4
  • 13/4-20/4
  • 5 total stops
  • 54h 35m total
  • Northern Ireland to Chicago
Search Deals
17/6
  • 17/6
  • 3 total stops
  • 32h 05m total
  • Northern Ireland to Chicago
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to O'Hare Intl 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 22 February 2026.
Use the filters below to find and compare flights from Northern Ireland to Chicago O'Hare Intl Airport that are best for you.

Fly from

Northern Ireland

Fly to

O'Hare Intl

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/4

15:35-18:15

2 stops32h 40m

Chicago O'Hare Intl

Mon 20/4

19:25-23:20

3 stops21h 55m

£540

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 13/4

14:30-18:15

2 stops33h 45m

Chicago O'Hare Intl

Mon 20/4

19:25-16:50

2 stops15h 25m

£574

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 13/4

06:30-12:20

1 stop11h 50m

Chicago O'Hare Intl

Mon 20/4

19:05-12:55

1 stop11h 50m

£598

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 13/4

17:30-14:15

1 stop26h 45m

Chicago O'Hare Intl

Mon 20/4

11:00-09:20

2 stops16h 20m

£613

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 19/3

06:35-00:16

2 stops22h 41m

Chicago O'Hare Intl

Mon 23/3

19:40-14:15

1 stop13h 35m

£657

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 9/4

08:10-16:00

2 stops37h 50m

Chicago O'Hare Intl

Sun 12/4

18:00-21:50

2 stops21h 50m

£813

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 9/4

17:30-14:15

1 stop26h 45m

Chicago O'Hare Intl

Sun 12/4

09:50-09:20

2 stops17h 30m

£888

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 17/6

16:10-18:15

3 stops32h 05m

£322

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 12/7

20:10-19:15

3 stops29h 05m

£414

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 17/6

06:10-21:25

2 stops21h 15m

£438

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 19 results
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Best time to book a flight from Northern Ireland to O'Hare Intl

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

    For as low as £598, American Airlines can have you in Chicago O'Hare Intl Airport from Northern Ireland in 11h 50m. There are 3644 mi between Northern Ireland and Chicago O'Hare Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to O'Hare Intl 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Northern Ireland to O'Hare Intl

Discover the top airline that operate flights from Northern Ireland to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 February 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£498Average£618FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Northern Ireland to O'Hare Intl?

When you search for this flight from Northern Ireland to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to O'Hare Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Northern Ireland to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to O'Hare Intl from Northern Ireland? 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 Northern Ireland to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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