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

British Airways, KLM, and Delta are the most popular carriers operating from Illinois to Northern Ireland

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

Prices for flights from Illinois to Northern Ireland were last updated today.

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

There is 1 operator available for flights from Illinois to Northern Ireland as of June 2026.

How old do you have to be to fly from Illinois to Northern Ireland?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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.

$273 Cheap Flights from Illinois to Northern Ireland in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Northern Ireland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 pm - 9:20 pm

ORD

BFS

19h 55m

2 stops

10:45 pm - 10:05 pm

BFS

ORD

29h 20m

2 stops

$808Multiple Airlines

Sun, Aug 2 - Tue, Aug 18

9:50 am - 10:50 pm

ORD

BFS

31h 00m

2 stops

5:55 am - 8:05 pm

BFS

ORD

20h 10m

3 stops

$827Multiple Airlines

Sun, Aug 2 - Tue, Aug 18

7:25 pm - 10:15 pm

ORD

BFS

20h 50m

2 stops

3:05 pm - 2:00 pm

BFS

ORD

28h 55m

2 stops

$840Multiple Airlines

Mon, Aug 24 - Mon, Aug 31

9:15 pm - 2:35 pm

ORD

BHD

11h 20m

1 stop

7:30 pm - 6:15 pm

BHD

ORD

28h 45m

1 stop

$884British Airways

Sun, Oct 18 - Tue, Oct 20

9:45 pm - 4:05 pm

ORD

BHD

12h 20m

1 stop

6:35 am - 1:50 pm

BHD

ORD

13h 15m

1 stop

$902British Airways

Mon, Nov 16 - Mon, Nov 30

7:05 pm - 12:55 pm

ORD

BHD

11h 50m

1 stop

3:20 pm - 1:50 pm

BHD

ORD

28h 30m

1 stop

$931British Airways

Mon, Aug 24 - Mon, Aug 31

6:45 pm - 4:55 pm

MDW

BHD

16h 10m

2 stops

5:20 pm - 4:50 pm

BHD

MDW

28h 30m

2 stops

$1,106KLM

Fri, Oct 16 - Sun, Oct 25

2:50 pm - 2:15 pm

STL

BHD

17h 25m

2 stops

6:35 am - 12:05 am

BHD

STL

23h 30m

2 stops

$1,141British Airways

Mon, Nov 16 - Thu, Nov 19

10:54 am - 9:20 am

MDW

BHD

16h 26m

2 stops

9:50 am - 10:36 pm

BHD

MDW

18h 46m

2 stops

$2,009KLM

Tue, Aug 4 - Wed, Aug 12

12:46 pm - 9:20 am

MDW

BHD

14h 34m

2 stops

9:50 am - 10:36 pm

BHD

MDW

18h 46m

2 stops

$2,059KLM

Thu, Aug 6 - Wed, Aug 12

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British Airways flights from Illinois to Northern Ireland

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

British Airways

Oct 18

ORD9:15 pmChicago O'Hare Intl

11h 20m

1 stop

BHD2:35 pmBelfast City

Oct 20

BHD7:30 pmBelfast City

28h 45m

1 stop

ORD6:15 pmChicago O'Hare Intl

$884

British Airways

Nov 16

ORD9:45 pmChicago O'Hare Intl

12h 20m

1 stop

BHD4:05 pmBelfast City

Nov 30

BHD6:35 amBelfast City

13h 15m

1 stop

ORD1:50 pmChicago O'Hare Intl

$902

British Airways

Aug 24

ORD7:05 pmChicago O'Hare Intl

11h 50m

1 stop

BHD12:55 pmBelfast City

Aug 31

BHD3:20 pmBelfast City

28h 30m

1 stop

ORD1:50 pmChicago O'Hare Intl

$931

American Airlines flights from Illinois to Northern Ireland

Our best American Airlines deals on Illinois to Northern Ireland flight tickets

American Airlines

Aug 5

ORD10:30 pmChicago O'Hare Intl

11h 10m

1 stop

BHD3:40 pmBelfast City

Aug 12

BHD6:30 amBelfast City

17h 05m

1 stop

ORD5:35 pmChicago O'Hare Intl

$993

American Airlines

Aug 5

ORD10:30 pmChicago O'Hare Intl

11h 10m

1 stop

BHD3:40 pmBelfast City

Aug 12

BHD6:30 amBelfast City

16h 28m

2 stops

ORD4:58 pmChicago O'Hare Intl

$1,003

American Airlines

Jul 28

ORD3:29 pmChicago O'Hare Intl

13h 16m

2 stops

BHD10:45 amBelfast City

Aug 4

BHD6:30 amBelfast City

17h 05m

1 stop

ORD5:35 pmChicago O'Hare Intl

$1,037

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 8/2

7:25 pm-9:20 pm

2 stops19h 55m

Belfast Intl

Tue 8/18

10:45 pm-10:05 pm

2 stops29h 20m

$808

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 8/2

9:50 am-10:50 pm

2 stops31h 00m

Belfast Intl

Tue 8/18

5:55 am-8:05 pm

3 stops20h 10m

$827

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 8/24

7:25 pm-10:15 pm

2 stops20h 50m

Belfast Intl

Mon 8/31

3:05 pm-2:00 pm

2 stops28h 55m

$840

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 10/18

9:15 pm-2:35 pm

1 stop11h 20m

Belfast City

Tue 10/20

7:30 pm-6:15 pm

1 stop28h 45m

$884

Quickest round-trip

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 11/16

9:45 pm-4:05 pm

1 stop12h 20m

Belfast City

Mon 11/30

6:35 am-1:50 pm

1 stop13h 15m

$902

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 8/24

7:05 pm-12:55 pm

1 stop11h 50m

Belfast City

Mon 8/31

3:20 pm-1:50 pm

1 stop28h 30m

$931

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 10/16

6:45 pm-4:55 pm

2 stops16h 10m

Belfast City

Sun 10/25

5:20 pm-4:50 pm

2 stops28h 30m

$1,106

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 11/16

2:50 pm-2:15 pm

2 stops17h 25m

Belfast City

Thu 11/19

6:35 am-12:05 am

2 stops23h 30m

$1,141

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Tue 8/4

10:54 am-9:20 am

2 stops16h 26m

Belfast City

Wed 8/12

9:50 am-10:36 pm

2 stops18h 46m

$2,009

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 8/6

12:46 pm-9:20 am

2 stops14h 34m

Belfast City

Wed 8/12

9:50 am-10:36 pm

2 stops18h 46m

$2,059

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 Illinois 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 Illinois to Northern Ireland flights?

You could potentially save up to 37% on your flight if you consider stops on a Illinois to Northern Ireland flight.

Cheap Illinois to Northern Ireland flight deals and tips

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

Fastest flight time	11h 20m
Direct flights	None

The fastest flight from Illinois to Northern Ireland takes 11h 20m

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

Search flight deals

Frequently asked questions about flying from Illinois to Northern Ireland

When did momondo last update prices for flights from Illinois to Northern Ireland?
Prices for flights from Illinois to Northern Ireland were last updated today.
How many operators does momondo search for flights from Illinois to Northern Ireland?
There is 1 operator available for flights from Illinois to Northern Ireland as of June 2026.
How old do you have to be to fly from Illinois to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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 Illinois to Northern Ireland

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $577	Free Cancellation	Rating 6.7 8,047 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois 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 Illinois.

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

Yes. momondo allows you to filter the results for Illinois to Northern Ireland flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Northern Ireland from Illinois.

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

Price alerts on flights to Northern Ireland from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.