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

Prices for flights from Illinois to Belfast are refreshed on a daily basis.

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

As of December 2025, there is 1 operator available to choose from for flights from Illinois to Belfast.

How old do you have to be to fly from Illinois to Belfast?

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 Illinois to Belfast.

What documentation or ID do you need to fly to Belfast?

The travel and health documents you'll need for your trip to Belfast 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 Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$323 Cheap Flights from Illinois to Belfast in 2025/26

1 adult

0 bags

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Find the cheapest flights from Illinois to Belfast

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:45 pm - 6:40 pm

ORD

BHD

14h 55m1 stop

12:25 pm - 7:45 pm

BHD

ORD

12h 20m1 stop

$622British Airways

Sun, Mar 8 - Wed, Mar 25

4:21 pm - 1:55 pm

ORD

BHD

16h 34m2 stops

12:25 pm - 7:45 pm

BHD

ORD

12h 20m1 stop

$642British Airways

Sun, Mar 8 - Wed, Mar 25

4:04 pm - 10:20 am

ORD

BHD

13h 16m2 stops

6:35 am - 5:54 pm

BHD

ORD

16h 19m2 stops

$659American Airlines

Sun, Mar 8 - Wed, Mar 25

9:45 pm - 6:50 pm

ORD

BHD

15h 05m1 stop

5:45 pm - 1:50 pm

BHD

ORD

26h 05m1 stop

$681British Airways

Thu, Jan 22 - Mon, Jan 26

6:25 pm - 1:55 pm

ORD

BHD

13h 30m1 stop

6:30 am - 5:00 pm

BHD

ORD

16h 30m1 stop

$704American Airlines

Sun, Jan 18 - Sun, Jan 25

6:30 pm - 9:55 pm

ORD

BFS

21h 25m3 stops

7:55 am - 8:18 am

BFS

ORD

30h 23m3 stops

$748Multiple Airlines

Sun, Jan 18 - Sun, Jan 25

5:20 pm - 8:15 pm

ORD

BFS

20h 55m2 stops

5:45 am - 5:20 pm

BFS

ORD

17h 35m3 stops

$778Multiple Airlines

Tue, Feb 10 - Tue, Feb 17

6:55 pm - 4:50 pm

STL

BHD

15h 55m2 stops

5:20 pm - 9:38 pm

BHD

STL

34h 18m2 stops

$798KLM

Mon, Jan 12 - Tue, Jan 20

6:55 pm - 4:50 pm

STL

BHD

15h 55m2 stops

5:20 pm - 9:38 pm

BHD

STL

34h 18m2 stops

$799KLM

Mon, Jan 12 - Tue, Jan 20

10:45 am - 4:50 pm

MDW

BHD

25h 05m2 stops

6:30 am - 6:40 pm

BHD

MDW

17h 10m2 stops

$1,733Delta

Sun, Mar 15 - Wed, Mar 25

British Airways flights from Illinois to Belfast

Our best British Airways deals on Illinois to Belfast flight tickets

British Airways

Mar 8

ORD10:45 pmChicago O'Hare Intl

14h 55m

1 stop

BHD6:40 pmBelfast City

Mar 25

BHD12:25 pmBelfast City

12h 20m

1 stop

ORD7:45 pmChicago O'Hare Intl

$622

Find similar

British Airways

Mar 8

ORD4:21 pmChicago O'Hare Intl

16h 34m

2 stops

BHD1:55 pmBelfast City

Mar 25

BHD12:25 pmBelfast City

12h 20m

1 stop

ORD7:45 pmChicago O'Hare Intl

$642

Find similar

British Airways

Jan 22

ORD9:45 pmChicago O'Hare Intl

15h 05m

1 stop

BHD6:50 pmBelfast City

Jan 26

BHD5:45 pmBelfast City

26h 05m

1 stop

ORD1:50 pmChicago O'Hare Intl

$681

Find similar

American Airlines flights from Illinois to Belfast

Our best American Airlines deals on Illinois to Belfast flight tickets

American Airlines

Mar 8

ORD4:04 pmChicago O'Hare Intl

13h 16m

2 stops

BHD10:20 amBelfast City

Mar 25

BHD6:35 amBelfast City

16h 19m

2 stops

ORD5:54 pmChicago O'Hare Intl

$659

Find similar

American Airlines

Jan 18

ORD6:25 pmChicago O'Hare Intl

13h 30m

1 stop

BHD1:55 pmBelfast City

Jan 25

BHD6:30 amBelfast City

16h 30m

1 stop

ORD5:00 pmChicago O'Hare Intl

$704

Find similar

American Airlines

Jan 18

ORD1:25 pmChicago O'Hare Intl

14h 55m

2 stops

BHD10:20 amBelfast City

Jan 25

BHD6:30 amBelfast City

16h 30m

1 stop

ORD5:00 pmChicago O'Hare Intl

$708

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/8

10:45 pm-6:40 pm

1 stop14h 55m

Belfast City

Wed 3/25

12:25 pm-7:45 pm

1 stop12h 20m

$622

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/8

4:21 pm-1:55 pm

2 stops16h 34m

Belfast City

Wed 3/25

12:25 pm-7:45 pm

1 stop12h 20m

$642

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/8

4:04 pm-10:20 am

2 stops13h 16m

Belfast City

Wed 3/25

6:35 am-5:54 pm

2 stops16h 19m

$659

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 1/22

9:45 pm-6:50 pm

1 stop15h 05m

Belfast City

Mon 1/26

5:45 pm-1:50 pm

1 stop26h 05m

$681

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 1/18

6:25 pm-1:55 pm

1 stop13h 30m

Belfast City

Sun 1/25

6:30 am-5:00 pm

1 stop16h 30m

$704

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 1/18

6:30 pm-9:55 pm

3 stops21h 25m

Belfast Intl

Sun 1/25

7:55 am-8:18 am

3 stops30h 23m

$748

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 2/10

5:20 pm-8:15 pm

2 stops20h 55m

Belfast Intl

Tue 2/17

5:45 am-5:20 pm

3 stops17h 35m

$778

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:55 pm-4:50 pm

2 stops15h 55m

Belfast City

Tue 1/20

5:20 pm-9:38 pm

2 stops34h 18m

$798

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:55 pm-4:50 pm

2 stops15h 55m

Belfast City

Tue 1/20

5:20 pm-9:38 pm

2 stops34h 18m

$799

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 3/15

10:45 am-4:50 pm

2 stops25h 05m

Belfast City

Wed 3/25

6:30 am-6:40 pm

2 stops17h 10m

$1,733

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Illinois to Belfast

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

What is the cheapest day to depart on your flight to Belfast?

The cheapest day to depart from Illinois to Belfast is on a Wednesday when prices can be found for as low as $649. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Belfast for around $938.

What is the cheapest time of day to depart on your flight to Belfast?

Our data shows that the cheapest Illinois to Belfast flights are usually those with departure times in the evening. Our users have found flights to Belfast in the evening for as low as $769. Try not to purchase tickets in the afternoon because they tend to be around $804. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Illinois to Belfast flight deals and tips

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

Fastest flight time	12h 05m
Direct flights	None

The fastest flight from Illinois to Belfast takes 12h 05m

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

Search flight deals

When did momondo last update prices for flights from Illinois to Belfast?
Prices for flights from Illinois to Belfast are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Belfast?
As of December 2025, there is 1 operator available to choose from for flights from Illinois to Belfast.
How old do you have to be to fly from Illinois to Belfast?
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 Illinois to Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents you'll need for your trip to Belfast 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 Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Belfast

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $577	Free Cancellation	Rating 6.7 7,616 reviews		Search British Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Belfast for you.

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

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

How can momondo help me find flights from Illinois to Belfast?

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 Belfast from Illinois.

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

Price alerts on flights to Belfast 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.