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Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £318

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
3 Apr — 10 Apr1
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 4 March 2026.

Mon 13/409:10
BFS
-
ORD
3 stops39h 21m
Multiple Airlines
Mon 20/419:25
ORD
-
BFS
2 stops14h 10m
Multiple Airlines
Deal found 27/2£608
Thu 7/506:30
BHD
-
ORD
1 stop11h 55m
British Airways
Mon 11/511:22
ORD
-
BHD
2 stops24h 08m
British Airways
Deal found 3/3£633
Thu 19/309:05
BHD
-
ORD
1 stop12h 20m
British Airways
Mon 23/311:40
ORD
-
BHD
2 stops18h 00m
British Airways
Deal found 2/3£656
Sun 29/317:30
BHD
-
ORD
2 stops51h 40m
KLM
Sun 5/419:14
ORD
-
BHD
2 stops32h 06m
KLM
Deal found 27/2£812
Sun 29/309:55
BFS
-
ORD
3 stops44h 27m
Multiple Airlines
Sun 5/414:00
ORD
-
BFS
3 stops25h 30m
Multiple Airlines
Deal found 27/2£814
Sun 29/314:30
BHD
-
ORD
3 stops39h 52m
Multiple Airlines
Sun 5/414:00
ORD
-
BHD
3 stops21h 20m
Multiple Airlines
Deal found 27/2£850

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 4 March 2026.

Round-trip from

£608

One-way from

£318
13/4-20/4
  • 13/4-20/4
  • 5 total stops
  • 53h 31m total
  • Northern Ireland to Chicago
Search Deals
26/8
  • 26/8
  • 2 total stops
  • 36h 20m 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 4 March 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

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/4

09:10-18:31

3 stops39h 21m

Chicago O'Hare Intl

Mon 20/4

19:25-15:35

2 stops14h 10m

£608

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 7/5

06:30-12:25

1 stop11h 55m

Chicago O'Hare Intl

Mon 11/5

11:22-17:30

2 stops24h 08m

£633

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 19/3

09:05-16:25

1 stop12h 20m

Chicago O'Hare Intl

Mon 23/3

11:40-10:40

2 stops18h 00m

£656

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 29/3

09:55-00:22

3 stops44h 27m

Chicago O'Hare Intl

Sun 5/4

16:05-21:30

2 stops23h 25m

£865

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 26/8

11:30-17:50

2 stops36h 20m

£318

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 11/4

21:40-12:35

2 stops44h 55m

£457

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 11/4

07:00-12:35

2 stops59h 35m

£462

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 26/8

06:30-12:30

1 stop12h 00m

£482

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 26/8

06:30-12:30

1 stop12h 00m

£489

Flights are sorted by cheapest return flights first.

Deals found on 27/2

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 £633, British Airways can have you in Chicago O'Hare Intl Airport from Northern Ireland in 11h 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

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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 4 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£503Average£657FlexibilityNo 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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