What is the cheapest airline that flies from Chicago to Northern Ireland?

British Airways and KLM are the most popular carriers operating from Chicago to Northern Ireland

When did momondo last update prices for flights from Chicago to Northern Ireland?

Prices for flights from Chicago to Northern Ireland are refreshed on a daily basis.

How many operators does momondo search for flights from Chicago to Northern Ireland?

The number of operators available for flights from Chicago to Northern Ireland is 1 as of September 2026.

How old do you have to be to fly from Chicago 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 to Northern Ireland.

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

The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$334 Cheap Flights from Chicago to Northern Ireland in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 pm - 10:20 pmORD Chicago O'Hare Intl-BFS Belfast Intl

21h 05m2 stops Kastrup Copenhagen Birmingham

10:45 am - 4:45 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

36h 00m2 stops Birmingham Kastrup Copenhagen

$696Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

4:25 pm - 4:50 pmORD Chicago O'Hare Intl-BHD Belfast City

18h 25m1 stop Amsterdam Schiphol

5:20 pm - 4:12 pmBHD Belfast City-ORD Chicago O'Hare Intl

28h 52m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$817Delta

Sun, Jan 31 - Mon, Feb 8

4:25 pm - 4:50 pmORD Chicago O'Hare Intl-BHD Belfast City

18h 25m1 stop Amsterdam Schiphol

5:20 pm - 4:37 pmBHD Belfast City-ORD Chicago O'Hare Intl

28h 17m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$818Delta

Wed, Mar 10 - Mon, Mar 15

4:25 pm - 4:50 pmORD Chicago O'Hare Intl-BHD Belfast City

18h 25m1 stop Amsterdam Schiphol

5:20 pm - 4:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

28h 29m2 stops Amsterdam Schiphol Minneapolis St Paul

$818Delta

Sun, Mar 7 - Mon, Mar 15

4:25 pm - 9:10 amORD Chicago O'Hare Intl-BHD Belfast City

10h 45m1 stop Amsterdam Schiphol

5:20 pm - 4:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

28h 29m2 stops Amsterdam Schiphol Minneapolis St Paul

$818Delta

Mon, Mar 8 - Mon, Mar 15

10:40 am - 9:10 amORD Chicago O'Hare Intl-BHD Belfast City

16h 30m2 stops New York John F Kennedy Intl Amsterdam Schiphol

5:20 pm - 4:37 pmBHD Belfast City-ORD Chicago O'Hare Intl

29h 17m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$821KLM

Sun, Jan 31 - Mon, Feb 8

3:50 pm - 4:50 pmORD Chicago O'Hare Intl-BHD Belfast City

19h 00m2 stops Minneapolis St Paul Amsterdam Schiphol

5:20 pm - 4:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

28h 29m2 stops Amsterdam Schiphol Minneapolis St Paul

$822Delta

Mon, Mar 8 - Mon, Mar 15

9:35 am - 9:10 amORD Chicago O'Hare Intl-BHD Belfast City

17h 35m2 stops New York LaGuardia Amsterdam Schiphol

5:20 pm - 4:49 pmBHD Belfast City-ORD Chicago O'Hare Intl

28h 29m2 stops Amsterdam Schiphol Minneapolis St Paul

$822Delta

Tue, Mar 9 - Mon, Mar 15

5:10 pm - 10:45 amORD Chicago O'Hare Intl-BHD Belfast City

11h 35m1 stop London Heathrow

7:40 pm - 1:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

24h 05m1 stop London Heathrow

$895British Airways

Sun, Jan 31 - Mon, Feb 8

5:10 pm - 11:30 amORD Chicago O'Hare Intl-BHD Belfast City

12h 20m1 stop London Heathrow

6:45 am - 1:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 00m1 stop London Heathrow

$895British Airways

Tue, Mar 9 - Fri, Mar 12

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British Airways flights from Chicago to Northern Ireland

Our best British Airways deals on Chicago to Northern Ireland flight tickets

British Airways

Jan 31

ORD5:10 pmChicago O'Hare Intl

11h 35m

1 stop

BHD10:45 amBelfast City

Feb 8

BHD7:40 pmBelfast City

24h 05m

1 stop

ORD1:45 pmChicago O'Hare Intl

$895

British Airways

Mar 7

ORD9:50 pmChicago O'Hare Intl

13h 00m

1 stop

BHD4:50 pmBelfast City

Mar 9

BHD6:15 pmBelfast City

30h 30m

1 stop

ORD6:45 pmChicago O'Hare Intl

$896

British Airways

Mar 9

ORD1:31 pmChicago O'Hare Intl

15h 19m

2 stops

BHD10:50 amBelfast City

Mar 12

BHD1:35 pmBelfast City

11h 40m

1 stop

ORD7:15 pmChicago O'Hare Intl

$901

Aer Lingus flights from Chicago to Northern Ireland

Our best Aer Lingus deals on Chicago to Northern Ireland flight tickets

Aer Lingus

Mar 9

ORD3:55 pmChicago O'Hare Intl

19h 45m

2 stops

BHD5:40 pmBelfast City

Mar 11

BHD5:55 pmBelfast City

26h 15m

2 stops

ORD2:10 pmChicago O'Hare Intl

$1,331

Aer Lingus

Mar 8

ORD8:05 pmChicago O'Hare Intl

14h 35m

2 stops

BHD4:40 pmBelfast City

Mar 12

BHD10:10 amBelfast City

14h 10m

2 stops

ORD6:20 pmChicago O'Hare Intl

$1,339

Aer Lingus

Mar 7

ORD3:55 pmChicago O'Hare Intl

15h 20m

2 stops

BHD1:15 pmBelfast City

Mar 12

BHD10:10 amBelfast City

14h 10m

2 stops

ORD6:20 pmChicago O'Hare Intl

$1,370

momondo Fare Finder

Use the filters below to find and compare flights from Chicago 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 - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Mon 11/2

7:15 pm-10:20 pm

2 stops21h 05m

Belfast Intl

Mon 11/9

10:45 am-4:45 pm

2 stops36h 00m

$696

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 1/31

4:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Mon 2/8

5:20 pm-4:12 pm

2 stops28h 52m

$817

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 3/10

4:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Mon 3/15

5:20 pm-4:37 pm

2 stops28h 17m

$818

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 3/7

4:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Mon 3/15

5:20 pm-4:49 pm

2 stops28h 29m

$818

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/8

4:25 pm-9:10 am

1 stop10h 45m

Belfast City

Mon 3/15

5:20 pm-4:49 pm

2 stops28h 29m

$818

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 1/31

10:40 am-9:10 am

2 stops16h 30m

Belfast City

Mon 2/8

5:20 pm-4:37 pm

2 stops29h 17m

$821

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 3/8

3:50 pm-4:50 pm

2 stops19h 00m

Belfast City

Mon 3/15

5:20 pm-4:49 pm

2 stops28h 29m

$822

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Tue 3/9

9:35 am-9:10 am

2 stops17h 35m

Belfast City

Mon 3/15

5:20 pm-4:49 pm

2 stops28h 29m

$822

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 1/31

5:10 pm-10:45 am

1 stop11h 35m

Belfast City

Mon 2/8

7:40 pm-1:45 pm

1 stop24h 05m

$895

Quickest round-trip

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Tue 3/9

5:10 pm-11:30 am

1 stop12h 20m

Belfast City

Fri 3/12

6:45 am-1:45 pm

1 stop13h 00m

$895

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago 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 to Northern Ireland flights?

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

Cheap Chicago to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Northern Ireland

Best Price Found	$334
Fastest flight time	11h 35m
Direct flights	None

The best one-way flight to Northern Ireland from Chicago in the past 72 hours is $334. The best round-trip flight deal from Chicago to Northern Ireland found on momondo in the last 72 hours is $696.

The fastest flight from Chicago to Northern Ireland takes 11h 35m

There are no direct flights from Chicago to Northern Ireland. There are no popular flight routes from Chicago to Northern Ireland.

Search flight deals

Frequently asked questions about flying from Chicago to Northern Ireland

When did momondo last update prices for flights from Chicago to Northern Ireland?
Prices for flights from Chicago to Northern Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago to Northern Ireland?
The number of operators available for flights from Chicago to Northern Ireland is 1 as of September 2026.
How old do you have to be to fly from Chicago 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 to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago to Northern Ireland

Compare and see reviews for airlines that fly from Chicago to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $629	Free Cancellation	Rating 6.7 8,228 reviews		Search British Airways flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Northern Ireland from Chicago.

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

Yes. All flights to Northern Ireland from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Chicago and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Chicago to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.