What is the cheapest airline that flies from Chicago O'Hare Intl to Northern Ireland?

Aer Lingus, KLM, and British Airways are the most popular carriers operating from Chicago O'Hare Intl to Northern Ireland

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Northern Ireland?

As of October 2026, there is 1 operator available to choose from for flights from Chicago O'Hare Intl Airport to Northern Ireland.

How old do you have to be to fly from Chicago O'Hare Intl Airport to Northern Ireland?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$489 Cheap Flights from Chicago O'Hare Intl Airport to Northern Ireland in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 pm - 10:50 amORD Chicago O'Hare Intl-BHD Belfast City

11h 40m1 stop London Heathrow

6:45 am - 2:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 00m1 stop London Heathrow

$870British Airways

Mon, Mar 22 - Fri, Mar 26

10:50 pm - 2:15 pmORD Chicago O'Hare Intl-BHD Belfast City

10h 25m1 stop London Heathrow

11:50 am - 7:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

12h 55m1 stop London Heathrow

$870British Airways

Mon, Mar 22 - Fri, Mar 26

10:50 pm - 2:15 pmORD Chicago O'Hare Intl-BHD Belfast City

10h 25m1 stop London Heathrow

11:50 am - 7:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

12h 55m1 stop London Heathrow

$871British Airways

Mon, Mar 22 - Fri, Mar 26

10:50 pm - 6:35 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 45m1 stop London Heathrow

6:45 am - 4:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 04m2 stops London Heathrow New York John F Kennedy Intl

$898British Airways

Mon, Mar 22 - Fri, Mar 26

6:40 pm - 4:05 pmORD Chicago O'Hare Intl-BHD Belfast City

16h 25m2 stops Charlotte Douglas London Heathrow

6:45 am - 2:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 00m1 stop London Heathrow

$904British Airways

Mon, Mar 22 - Fri, Mar 26

5:00 pm - 2:15 pmORD Chicago O'Hare Intl-BHD Belfast City

16h 15m2 stops Pittsburgh London Heathrow

6:45 am - 7:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

18h 00m1 stop London Heathrow

$904British Airways

Mon, Mar 22 - Fri, Mar 26

9:50 pm - 6:50 pmORD Chicago O'Hare Intl-BHD Belfast City

15h 00m1 stop London Heathrow

11:45 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 00m1 stop London Heathrow

$904British Airways

Sun, Jan 10 - Sat, Jan 16

12:31 pm - 4:05 pmORD Chicago O'Hare Intl-BHD Belfast City

22h 34m2 stops Pittsburgh London Heathrow

6:45 am - 4:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 04m2 stops London Heathrow New York John F Kennedy Intl

$910British Airways

Mon, Mar 22 - Fri, Mar 26

4:25 pm - 4:45 pmORD Chicago O'Hare Intl-BHD Belfast City

18h 20m1 stop Amsterdam Schiphol

5:15 pm - 2:25 pmBHD Belfast City-ORD Chicago O'Hare Intl

27h 10m1 stop Amsterdam Schiphol

$934Multiple Airlines

Mon, Nov 2 - Tue, Nov 17

4:25 pm - 4:45 pmORD Chicago O'Hare Intl-BHD Belfast City

18h 20m1 stop Amsterdam Schiphol

9:40 am - 8:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

17h 09m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$936KLM

Mon, Nov 2 - Tue, Nov 17

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KLM flights from Chicago O'Hare Intl Airport to Northern Ireland

Our best KLM deals on Chicago O'Hare Intl Airport to Northern Ireland flight tickets

KLM

Nov 2

ORD4:25 pmChicago O'Hare Intl

18h 20m

1 stop

BHD4:45 pmBelfast City

Nov 17

BHD9:40 amBelfast City

17h 09m

2 stops

ORD8:49 pmChicago O'Hare Intl

$936

KLM

Oct 25

ORD5:25 pmChicago O'Hare Intl

10h 45m

1 stop

BHD9:10 amBelfast City

Oct 31

BHD5:15 pmBelfast City

30h 05m

2 stops

ORD6:20 pmChicago O'Hare Intl

$1,018

KLM

Oct 9

ORD4:20 pmChicago O'Hare Intl

18h 35m

1 stop

BHD4:55 pmBelfast City

Oct 23

BHD9:50 amBelfast City

17h 41m

2 stops

ORD9:31 pmChicago O'Hare Intl

$1,241

British Airways flights from Chicago O'Hare Intl Airport to Northern Ireland

Our best British Airways deals on Chicago O'Hare Intl Airport to Northern Ireland flight tickets

British Airways

Mar 22

ORD6:10 pmChicago O'Hare Intl

11h 40m

1 stop

BHD10:50 amBelfast City

Mar 26

BHD6:45 amBelfast City

13h 00m

1 stop

ORD2:45 pmChicago O'Hare Intl

$870

British Airways

Mar 22

ORD10:50 pmChicago O'Hare Intl

10h 25m

1 stop

BHD2:15 pmBelfast City

Mar 26

BHD11:50 amBelfast City

12h 55m

1 stop

ORD7:45 pmChicago O'Hare Intl

$871

British Airways

Mar 22

ORD10:50 pmChicago O'Hare Intl

14h 45m

1 stop

BHD6:35 pmBelfast City

Mar 26

BHD6:45 amBelfast City

15h 04m

2 stops

ORD4:49 pmChicago O'Hare Intl

$898

momondo Fare Finder

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 round-trip

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

6:10 pm-10:50 am

1 stop11h 40m

Belfast City

Fri 3/26

6:45 am-2:45 pm

1 stop13h 00m

$870

Quickest round-trip

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

10:50 pm-2:15 pm

1 stop10h 25m

Belfast City

Fri 3/26

11:50 am-7:45 pm

1 stop12h 55m

$870

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

10:50 pm-2:15 pm

1 stop10h 25m

Belfast City

Fri 3/26

11:50 am-7:45 pm

1 stop12h 55m

$871

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

10:50 pm-6:35 pm

1 stop14h 45m

Belfast City

Fri 3/26

6:45 am-4:49 pm

2 stops15h 04m

$898

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

6:40 pm-4:05 pm

2 stops16h 25m

Belfast City

Fri 3/26

6:45 am-2:45 pm

1 stop13h 00m

$904

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

5:00 pm-2:15 pm

2 stops16h 15m

Belfast City

Fri 3/26

6:45 am-7:45 pm

1 stop18h 00m

$904

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 1/10

9:50 pm-6:50 pm

1 stop15h 00m

Belfast City

Sat 1/16

11:45 am-6:45 pm

1 stop13h 00m

$904

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/22

12:31 pm-4:05 pm

2 stops22h 34m

Belfast City

Fri 3/26

6:45 am-4:49 pm

2 stops15h 04m

$910

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 11/2

4:25 pm-4:45 pm

1 stop18h 20m

Belfast City

Tue 11/17

5:15 pm-2:25 pm

1 stop27h 10m

$934

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 11/2

4:25 pm-4:45 pm

1 stop18h 20m

Belfast City

Tue 11/17

9:40 am-8:49 pm

2 stops17h 09m

$936

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Chicago O'Hare Intl Airport to Northern Ireland flights?

You could potentially save up to 18% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Northern Ireland flight.

Cheap Chicago O'Hare Intl Airport to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Northern Ireland

Best Price Found	$489
Fastest flight time	10h 25m
Direct flights	None

The best one-way flight to Northern Ireland from Chicago O'Hare Intl Airport in the past 72 hours is $489. The best round-trip flight deal from Chicago O'Hare Intl Airport to Northern Ireland found on momondo in the last 72 hours is $870.

The fastest flight from Chicago O'Hare Intl Airport to Northern Ireland takes 10h 25m

There are no direct flights from Chicago O'Hare Intl Airport to Northern Ireland. There are no popular flight routes from Chicago O'Hare Intl Airport to Northern Ireland.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Northern Ireland

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Northern Ireland?
Prices for flights from Chicago O'Hare Intl Airport to Northern Ireland are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Northern Ireland?
As of October 2026, there is 1 operator available to choose from for flights from Chicago O'Hare Intl Airport to Northern Ireland.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Northern Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Chicago O'Hare Intl Airport to Northern Ireland

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $629	Free Cancellation	Rating 6.7 8,240 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Northern Ireland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Northern Ireland. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Northern Ireland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Northern Ireland from Chicago with this policy.

How can momondo help me find flights from Chicago to Northern Ireland?

Once all potential Chicago to Northern Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Northern Ireland right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Northern Ireland from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.