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Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £319

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
29 May — 5 Jun1
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 29 April 2026.

Wed 10/607:00
BFS
-
ORD
2 stops34h 50m
Multiple Airlines
Wed 17/609:55
ORD
-
BFS
2 stops25h 10m
Multiple Airlines
Deal found 26/4£631
Wed 11/1106:35
BHD
-
ORD
2 stops18h 15m
British Airways
Sun 15/1118:50
ORD
-
BHD
1 stop13h 05m
British Airways
Deal found 28/4£710
Thu 1/1020:35
BHD
-
ORD
1 stop21h 55m
British Airways
Mon 5/1017:55
ORD
-
BHD
1 stop13h 00m
British Airways
Deal found 24/4£714
Mon 8/606:10
BFS
-
ORD
2 stops21h 15m
Multiple Airlines
Mon 15/622:25
ORD
-
BFS
2 stops16h 00m
Multiple Airlines
Deal found 24/4£735
Sat 13/606:55
BFS
-
ORD
3 stops36h 15m
Multiple Airlines
Sat 20/619:25
ORD
-
BFS
2 stops15h 45m
Multiple Airlines
Deal found 28/4£815
Sun 17/515:50
BHD
-
ORD
1 stop29h 05m
British Airways
Sun 24/518:10
ORD
-
BHD
1 stop14h 25m
British Airways
Deal found 26/4£907
Sun 17/509:50
BHD
-
ORD
2 stops18h 45m
Delta
Sun 24/508:42
ORD
-
BHD
2 stops18h 38m
Delta
Deal found 26/4£925
Fri 12/617:20
BFS
-
ORD
2 stops28h 45m
Multiple Airlines
Fri 19/621:00
ORD
-
BFS
2 stops18h 15m
Multiple Airlines
Deal found 28/4£1,029

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 29 April 2026.

Round-trip from

£631

One-way from

£319
10/6-17/6
  • 10/6-17/6
  • 4 total stops
  • 60h 00m total
  • Northern Ireland to Chicago
Search Deals
21/10
  • 21/10
  • 3 total stops
  • 37h 55m 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 29 April 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

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/6

07:00-11:50

2 stops34h 50m

Chicago O'Hare Intl

Wed 17/6

09:55-17:05

2 stops25h 10m

£631
Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/10

20:35-12:30

1 stop21h 55m

Chicago O'Hare Intl

Mon 5/10

17:55-12:55

1 stop13h 00m

£714

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 8/6

10:30-16:59

3 stops36h 29m

Chicago O'Hare Intl

Mon 15/6

09:55-16:15

2 stops24h 20m

£803

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 13/6

06:55-13:10

3 stops36h 15m

Chicago O'Hare Intl

Sat 20/6

19:25-17:10

2 stops15h 45m

£815

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 17/5

20:10-12:25

1 stop22h 15m

Chicago O'Hare Intl

Sun 24/5

21:30-17:30

2 stops38h 00m

£910

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 17/5

09:50-22:35

2 stops18h 45m

Chicago O'Hare Intl

Sun 24/5

08:42-09:20

2 stops18h 38m

£925

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 12/6

17:20-16:05

2 stops28h 45m

Chicago O'Hare Intl

Fri 19/6

21:00-21:15

2 stops18h 15m

£1,029
Cheapest one-way

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 21/10

09:55-17:50

3 stops37h 55m

£319

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 6/10

18:10-11:50

2 stops47h 40m

£433
Fastest single journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 6/10

06:30-15:55

1 stop15h 25m

£460

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Sorted by cheapest first

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 £714, British Airways can have you in Chicago O'Hare Intl Airport from Northern Ireland in 21h 55m. There are 3644 mi between Northern Ireland and Chicago O'Hare Intl Airport.

  • 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 29 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£497Average£649FlexibilityNo 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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