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

British Airways and Delta 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 August 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.

$359 Cheap Flights from Chicago to Northern Ireland in 2026

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.

6:30 pm - 7:50 pmORD Chicago O'Hare Intl-BFS Belfast Intl

19h 20m2 stops Reykjavik Keflavik Intl Manchester

7:50 am - 8:20 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

42h 30m3 stops Manchester Madrid Barajas Bogotá El Dorado

$757Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

7:25 pm - 10:40 pmORD Chicago O'Hare Intl-BFS Belfast Intl

21h 15m2 stops Reykjavik Keflavik Intl London Gatwick

9:10 pm - 7:48 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

28h 38m2 stops London Gatwick Toronto Pearson Intl

$864Multiple Airlines

Sat, Sep 12 - Fri, Sep 18

9:55 am - 2:30 pmORD Chicago O'Hare Intl-BHD Belfast City

22h 35m2 stops Toronto Pearson Intl Glasgow Intl

7:00 am - 1:21 pmBHD Belfast City-ORD Chicago O'Hare Intl

36h 21m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Island

$866Multiple Airlines

Wed, Sep 16 - Sun, Sep 20

6:30 pm - 8:30 pmORD Chicago O'Hare Intl-BHD Belfast City

20h 00m2 stops Reykjavik Keflavik Intl London Gatwick

7:30 am - 5:20 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 50m2 stops London Gatwick Reykjavik Keflavik Intl

$871Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

5:10 pm - 10:20 amORD Chicago O'Hare Intl-BHD Belfast City

11h 10m1 stop London Heathrow

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

12h 05m1 stop London Heathrow

$886British Airways

Sun, Nov 15 - Thu, Nov 19

7:25 pm - 10:40 pmORD Chicago O'Hare Intl-BFS Belfast Intl

21h 15m2 stops Reykjavik Keflavik Intl London Gatwick

9:10 pm - 8:12 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

29h 02m3 stops London Gatwick Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$892Multiple Airlines

Sat, Sep 12 - Sun, Sep 20

9:50 pm - 6:40 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 50m1 stop London Heathrow

9:05 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 40m1 stop London Heathrow

$894British Airways

Sun, Jan 24 - Thu, Jan 28

10:25 pm - 10:40 pmORD Chicago O'Hare Intl-BFS Belfast Intl

18h 15m2 stops Reykjavik Keflavik Intl London Gatwick

8:15 pm - 10:15 amBFS Belfast Intl-ORD Chicago O'Hare Intl

44h 00m3 stops London Gatwick Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$895Multiple Airlines

Sat, Sep 12 - Fri, Sep 18

7:25 pm - 10:40 pmORD Chicago O'Hare Intl-BFS Belfast Intl

21h 15m2 stops Reykjavik Keflavik Intl London Gatwick

7:00 am - 12:35 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

35h 35m2 stops London Stansted Munich Franz Josef Strauss

$896Multiple Airlines

Sat, Sep 12 - Sun, Sep 20

9:50 pm - 6:40 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 50m1 stop London Heathrow

9:05 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 40m1 stop London Heathrow

$896British Airways

Sun, Jan 24 - Thu, Jan 28

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

British Airways flights from Chicago to Northern Ireland

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

British Airways

Nov 15

ORD5:10 pmChicago O'Hare Intl

11h 10m

1 stop

BHD10:20 amBelfast City

Nov 19

BHD7:40 amBelfast City

12h 05m

1 stop

ORD1:45 pmChicago O'Hare Intl

$886

British Airways

Jan 24

ORD9:50 pmChicago O'Hare Intl

14h 50m

1 stop

BHD6:40 pmBelfast City

Jan 28

BHD9:05 amBelfast City

15h 40m

1 stop

ORD6:45 pmChicago O'Hare Intl

$894

British Airways

Jan 24

ORD9:50 pmChicago O'Hare Intl

14h 50m

1 stop

BHD6:40 pmBelfast City

Jan 28

BHD9:05 amBelfast City

15h 40m

1 stop

ORD6:45 pmChicago O'Hare Intl

$896

KLM flights from Chicago to Northern Ireland

Our best KLM deals on Chicago to Northern Ireland flight tickets

KLM

Nov 5

MDW12:27 pmChicago Midway

14h 43m

2 stops

BHD9:10 amBelfast City

Nov 9

BHD5:20 pmBelfast City

28h 54m

2 stops

MDW4:14 pmChicago Midway

$969

KLM

Nov 25

ORD4:25 pmChicago O'Hare Intl

10h 45m

1 stop

BHD9:10 amBelfast City

Nov 29

BHD5:20 pmBelfast City

27h 05m

1 stop

ORD2:25 pmChicago O'Hare Intl

$1,018

KLM

Sep 16

MDW7:01 pmChicago Midway

15h 54m

2 stops

BHD4:55 pmBelfast City

Sep 20

BHD9:45 amBelfast City

18h 59m

2 stops

MDW10:44 pmChicago Midway

$1,567

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

Thu 11/5

6:30 pm-7:50 pm

2 stops19h 20m

Belfast Intl

Sun 11/8

7:50 am-8:20 pm

3 stops42h 30m

$757

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 9/12

7:25 pm-10:40 pm

2 stops21h 15m

Belfast Intl

Fri 9/18

9:10 pm-7:48 pm

2 stops28h 38m

$864

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 9/16

9:55 am-2:30 pm

2 stops22h 35m

Belfast City

Sun 9/20

7:00 am-1:21 pm

3 stops36h 21m

$866

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Thu 11/5

6:30 pm-8:30 pm

2 stops20h 00m

Belfast City

Sun 11/8

7:30 am-5:20 pm

2 stops15h 50m

$871

Quickest round-trip

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 11/15

5:10 pm-10:20 am

1 stop11h 10m

Belfast City

Thu 11/19

7:40 am-1:45 pm

1 stop12h 05m

$886

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 9/12

7:25 pm-10:40 pm

2 stops21h 15m

Belfast Intl

Sun 9/20

9:10 pm-8:12 pm

3 stops29h 02m

$892

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 1/24

9:50 pm-6:40 pm

1 stop14h 50m

Belfast City

Thu 1/28

9:05 am-6:45 pm

1 stop15h 40m

$894

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 9/12

10:25 pm-10:40 pm

2 stops18h 15m

Belfast Intl

Fri 9/18

8:15 pm-10:15 am

3 stops44h 00m

$895

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sat 9/12

7:25 pm-10:40 pm

2 stops21h 15m

Belfast Intl

Sun 9/20

7:00 am-12:35 pm

2 stops35h 35m

$896

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 1/24

9:50 pm-6:40 pm

1 stop14h 50m

Belfast City

Thu 1/28

9:05 am-6:45 pm

1 stop15h 40m

$896

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

Fastest flight time	11h 10m
Direct flights	None

The fastest flight from Chicago to Northern Ireland takes 11h 10m

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 August 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 8,153 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.