How long is the flight from Northern Ireland to Chicago O'Hare Intl Airport?

For as low as £631, British Airways can have you in Chicago O'Hare Intl Airport from Northern Ireland in 12h 55m. 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.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from NIR to ORD?

When flying from Northern Ireland to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£281+ Cheap Flights from Northern Ireland to Chicago O'Hare Intl Airport

Cheap flight deals from Northern Ireland to O'Hare Intl

Enter your travel dates to find the best prices.

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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 31 August 2026.

Mon 12/1010:50 -

2 stops35h 20m

Mon 19/1019:15 -

2 stops21h 50m

Deal found 28/8£604

Thu 10/906:30 -

1 stop13h 20m

Mon 14/922:25 -

1 stop14h 20m

Deal found 30/8£640

Wed 14/1021:50 -

2 stops24h 20m

Wed 21/1019:15 -

2 stops21h 05m

Deal found 29/8£641

Thu 5/1107:40 -

1 stop13h 50m

Mon 9/1118:49 -

2 stops15h 16m

Deal found 30/8£675

Thu 10/906:30 -

2 stops16h 38m

Mon 14/920:50 -

1 stop14h 40m

Deal found 30/8£681

Thu 10/909:50 -

2 stops16h 40m

Mon 14/912:29 -

2 stops14h 51m

Deal found 30/8£686

Thu 10/908:10 -

2 stops17h 05m

Mon 14/915:45 -

2 stops12h 15m

Deal found 30/8£805

Find flight deals from Northern Ireland to O'Hare Intl

Round-trip from	£604
One-way from	£281

12/10-19/10
4 total stops
57h 10m total
Northern Ireland to Chicago

Search Deals

28/10
3 total stops
39h 55m total
Northern Ireland to Chicago

Search Deals

Cheapflights Fare Finder

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 Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 12/10

10:50-16:10

2 stops35h 20m

Chicago O'Hare Intl

Mon 19/10

19:15-23:05

2 stops21h 50m

£604

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 14/10

21:50-16:10

2 stops24h 20m

Chicago O'Hare Intl

Wed 21/10

19:15-22:20

2 stops21h 05m

£641

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 4/11

12:20-18:45

1 stop12h 25m

Chicago O'Hare Intl

Sun 8/11

18:49-18:50

2 stops18h 01m

£675

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 5/11

07:40-15:30

1 stop13h 50m

Chicago O'Hare Intl

Mon 9/11

18:49-16:05

2 stops15h 16m

£675

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 25/2

11:05-19:15

1 stop14h 10m

Chicago O'Hare Intl

Wed 10/3

18:50-14:35

1 stop13h 45m

£679

Fastest return journey

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Fri 26/2

11:50-19:15

1 stop13h 25m

Chicago O'Hare Intl

Mon 8/3

20:40-14:15

1 stop11h 35m

£679

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Fri 26/2

19:20-17:20

3 stops28h 00m

Chicago O'Hare Intl

Sun 7/3

18:30-17:05

2 stops16h 35m

£703

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Thu 10/9

08:10-19:15

2 stops17h 05m

Chicago O'Hare Intl

Mon 14/9

15:45-10:00

2 stops12h 15m

£805

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 24/2

07:00-14:25

1 stop13h 25m

Chicago O'Hare Intl

Tue 9/3

18:30-13:30

2 stops13h 00m

£1,135

Cheapest one-way

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 28/10

07:55-18:50

3 stops39h 55m

£281

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 15 resultsSorted 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.

BFS-ORD

BHD-ORD

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

GBNIR-ORD

BFS-ORD

BHD-ORD

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Northern Ireland to Chicago O'Hare Intl Airport?
For as low as £631, British Airways can have you in Chicago O'Hare Intl Airport from Northern Ireland in 12h 55m. 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.

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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.

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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?

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Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £281

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to O'Hare Intl

Cheapest flights from Northern Ireland to O'Hare IntlExplore 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 31 August 2026.

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 31 August 2026.

Best flights from Northern Ireland to O'Hare IntlDiscover carefully curated flight deals from Northern Ireland to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Discover carefully curated flight deals from Northern Ireland to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Last-minute flights from Northern Ireland to O'Hare IntlDiscover last-minute flight deals from Northern Ireland to O'Hare Intl. Data last updated 31 August 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to O'Hare Intl. Data last updated 31 August 2026 and is based on user searches.

One-way flights from Northern Ireland to O'Hare IntlSearch for one-way flight options from Northern Ireland to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.

Search for one-way flight options from Northern Ireland to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.

Find flight deals from Northern Ireland to O'Hare Intl

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Use the filters below to find and compare flights from Northern Ireland to Chicago O'Hare Intl Airport that are best for you.

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.

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Related info for your journey

How long is the flight from Northern Ireland to Chicago O'Hare Intl Airport?

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

How can I 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?

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

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Alternative routes for Northern Ireland to O'Hare Intl

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Other flights to O'Hare Intl

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

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

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

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

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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 31 August 2026.

Best flights from Northern Ireland to O'Hare Intl
Discover carefully curated flight deals from Northern Ireland to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Last-minute flights from Northern Ireland to O'Hare Intl
Discover last-minute flight deals from Northern Ireland to O'Hare Intl. Data last updated 31 August 2026 and is based on user searches.

One-way flights from Northern Ireland to O'Hare Intl
Search for one-way flight options from Northern Ireland to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.