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

Prices for flights from Belfast to Illinois refresh daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast to Illinois.

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

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

$434 Cheap Flights from Belfast to Illinois in 2026/27

Find the cheapest flights from Belfast to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 6:20 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

16h 50m2 stops London Gatwick Reykjavik Keflavik Intl

6:30 pm - 5:05 pmORD Chicago O'Hare Intl-BFS Belfast Intl

16h 35m2 stops Reykjavik Keflavik Intl London Gatwick

$828Multiple Airlines

Thu, Oct 29 - Thu, Nov 5

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

15h 50m2 stops London Gatwick Reykjavik Keflavik Intl

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

20h 00m2 stops Reykjavik Keflavik Intl London Gatwick

$883Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

6:30 am - 2:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 15m1 stop London Heathrow

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

11h 35m1 stop London Heathrow

$900Iberia

Sun, Nov 1 - Sun, Nov 8

6:30 am - 11:30 pmBHD Belfast City-ORD Chicago O'Hare Intl

22h 00m2 stops London Heathrow New York John F Kennedy Intl

6:35 pm - 1:50 pmORD Chicago O'Hare Intl-BHD Belfast City

13h 15m1 stop London Heathrow

$905Iberia

Sun, Nov 1 - Sun, Nov 8

11:05 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 40m1 stop London Heathrow

9:50 pm - 5:25 pmORD Chicago O'Hare Intl-BHD Belfast City

13h 35m1 stop London Heathrow

$909British Airways

Thu, Nov 5 - Mon, Nov 9

11:05 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 40m1 stop London Heathrow

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

17h 25m2 stops Charlotte Douglas London Heathrow

$911British Airways

Thu, Nov 5 - Mon, Nov 9

11:05 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 40m1 stop London Heathrow

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

17h 25m2 stops Charlotte Douglas London Heathrow

$912British Airways

Thu, Nov 5 - Mon, Nov 9

11:40 am - 7:30 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 50m1 stop London Heathrow

4:50 pm - 1:50 pmORD Chicago O'Hare Intl-BHD Belfast City

15h 00m2 stops Cincinnati Cinci./N. Kentucky London Heathrow

$914British Airways

Wed, Nov 4 - Sun, Nov 8

11:05 am - 10:32 pmBHD Belfast City-ORD Chicago O'Hare Intl

17h 27m2 stops London Heathrow Charlotte Douglas

4:40 pm - 2:15 pmORD Chicago O'Hare Intl-BHD Belfast City

15h 35m2 stops Charlotte Douglas London Heathrow

$916British Airways

Thu, Nov 5 - Mon, Nov 9

9:15 am - 6:20 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 05m2 stops London Heathrow Dublin

4:50 pm - 1:50 pmORD Chicago O'Hare Intl-BHD Belfast City

15h 00m2 stops Cincinnati Cinci./N. Kentucky London Heathrow

$917British Airways

Wed, Nov 4 - Sun, Nov 8

Cheap last minute flights

Enter your travel dates to find the best prices.

6:30 am - 12:25 pmBHD Belfast City-ORD Chicago O'Hare Intl

11h 55m1 stop London Heathrow

10:25 pm - 3:30 pmORD Chicago O'Hare Intl-BHD Belfast City

11h 05m1 stop London Heathrow

$851Multiple Airlines

Thu, Sep 24 - Mon, Sep 28

9:35 am - 3:55 pmBHD Belfast City-ORD Chicago O'Hare Intl

12h 20m1 stop London Heathrow

8:50 pm - 5:25 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 35m1 stop London Heathrow

$871American Airlines

Thu, Sep 24 - Mon, Sep 28

9:35 am - 3:55 pmBHD Belfast City-ORD Chicago O'Hare Intl

12h 20m1 stop London Heathrow

8:50 pm - 5:25 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 35m1 stop London Heathrow

$873American Airlines

Thu, Sep 24 - Mon, Sep 28

6:30 am - 12:25 pmBHD Belfast City-ORD Chicago O'Hare Intl

11h 55m1 stop London Heathrow

6:57 pm - 3:30 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 33m2 stops Charlotte Douglas London Heathrow

$922Multiple Airlines

Thu, Sep 24 - Mon, Sep 28

6:30 am - 4:46 pmBHD Belfast City-ORD Chicago O'Hare Intl

16h 16m2 stops London Heathrow New York John F Kennedy Intl

8:50 pm - 5:25 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 35m1 stop London Heathrow

$924American Airlines

Thu, Sep 24 - Mon, Sep 28

9:50 am - 8:30 pmBHD Belfast City-ORD Chicago O'Hare Intl

16h 40m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

10:30 am - 9:20 amORD Chicago O'Hare Intl-BHD Belfast City

16h 50m2 stops Boston Logan Intl Amsterdam Schiphol

$926Delta

Thu, Sep 24 - Mon, Sep 28

5:30 pm - 9:27 amBHD Belfast City-ORD Chicago O'Hare Intl

45h 57m2 stops Amsterdam Schiphol New York John F Kennedy Intl

6:00 pm - 4:55 pmORD Chicago O'Hare Intl-BHD Belfast City

40h 55m2 stops New York John F Kennedy Intl Amsterdam Schiphol

$942Virgin Atlantic

Thu, Sep 24 - Mon, Sep 28

7:00 am - 4:46 pmBHD Belfast City-ORD Chicago O'Hare Intl

15h 46m2 stops Edinburgh Turnhouse New York John F Kennedy Intl

5:48 pm - 3:30 pmORD Chicago O'Hare Intl-BHD Belfast City

15h 42m2 stops Philadelphia London Heathrow

$948British Airways

Thu, Sep 24 - Mon, Sep 28

6:35 am - 5:15 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

16h 40m1 stop London Stansted

5:55 pm - 3:30 pmORD Chicago O'Hare Intl-BFS Belfast Intl

15h 35m1 stop London Heathrow

$958Multiple Airlines

Thu, Sep 24 - Mon, Sep 28

2:25 pm - 4:00 pmBHD Belfast City-ORD Chicago O'Hare Intl

31h 35m3 stops Manchester Dublin Lisbon Humberto Delgado

7:25 pm - 9:05 pmORD Chicago O'Hare Intl-BHD Belfast City

19h 40m2 stops Reykjavik Keflavik Intl Manchester

$1,041Multiple Airlines

Thu, Sep 24 - Mon, Sep 28

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American Airlines flights from Belfast to Illinois

Our best American Airlines deals on Belfast to Illinois flight tickets

American Airlines

Sep 24

BHD9:35 amBelfast City

12h 20m

1 stop

ORD3:55 pmChicago O'Hare Intl

Sep 28

ORD8:50 pmChicago O'Hare Intl

14h 35m

1 stop

BHD5:25 pmBelfast City

$871

American Airlines

Sep 24

BHD9:35 amBelfast City

12h 20m

1 stop

ORD3:55 pmChicago O'Hare Intl

Sep 28

ORD8:50 pmChicago O'Hare Intl

14h 35m

1 stop

BHD5:25 pmBelfast City

$873

American Airlines

Sep 24

BHD6:30 amBelfast City

16h 16m

2 stops

ORD4:46 pmChicago O'Hare Intl

Sep 28

ORD8:50 pmChicago O'Hare Intl

14h 35m

1 stop

BHD5:25 pmBelfast City

$924

British Airways flights from Belfast to Illinois

Our best British Airways deals on Belfast to Illinois flight tickets

British Airways

Nov 5

BHD11:05 amBelfast City

13h 40m

1 stop

ORD6:45 pmChicago O'Hare Intl

Nov 9

ORD9:50 pmChicago O'Hare Intl

13h 35m

1 stop

BHD5:25 pmBelfast City

$904

British Airways

Nov 5

BHD11:05 amBelfast City

13h 40m

1 stop

ORD6:45 pmChicago O'Hare Intl

Nov 9

ORD9:50 pmChicago O'Hare Intl

13h 35m

1 stop

BHD5:25 pmBelfast City

$909

British Airways

Nov 5

BHD11:05 amBelfast City

13h 40m

1 stop

ORD6:45 pmChicago O'Hare Intl

Nov 9

ORD4:40 pmChicago O'Hare Intl

17h 25m

2 stops

BHD4:05 pmBelfast City

$911

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Thu 10/29

6:30 am-6:20 pm

2 stops16h 50m

Chicago O'Hare Intl

Thu 11/5

6:30 pm-5:05 pm

2 stops16h 35m

$828

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 11/1

7:30 am-5:20 pm

2 stops15h 50m

Chicago O'Hare Intl

Sun 11/8

6:30 pm-8:30 pm

2 stops20h 00m

$883

Quickest round-trip

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 11/1

6:30 am-2:45 pm

1 stop13h 15m

Chicago O'Hare Intl

Sun 11/8

5:10 pm-10:45 am

1 stop11h 35m

$900

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 11/1

6:30 am-11:30 pm

2 stops22h 00m

Chicago O'Hare Intl

Sun 11/8

6:35 pm-1:50 pm

1 stop13h 15m

$905

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 11/5

11:05 am-6:45 pm

1 stop13h 40m

Chicago O'Hare Intl

Mon 11/9

9:50 pm-5:25 pm

1 stop13h 35m

$909

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 11/5

11:05 am-6:45 pm

1 stop13h 40m

Chicago O'Hare Intl

Mon 11/9

4:40 pm-4:05 pm

2 stops17h 25m

$911

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 11/5

11:05 am-6:45 pm

1 stop13h 40m

Chicago O'Hare Intl

Mon 11/9

4:40 pm-4:05 pm

2 stops17h 25m

$912

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 11/4

11:40 am-7:30 pm

1 stop13h 50m

Chicago O'Hare Intl

Sun 11/8

4:50 pm-1:50 pm

2 stops15h 00m

$914

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 11/5

11:05 am-10:32 pm

2 stops17h 27m

Chicago O'Hare Intl

Mon 11/9

4:40 pm-2:15 pm

2 stops15h 35m

$916

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 11/4

9:15 am-6:20 pm

2 stops15h 05m

Chicago O'Hare Intl

Sun 11/8

4:50 pm-1:50 pm

2 stops15h 00m

$917

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 Belfast to Illinois

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 airline that flies from Belfast to Illinois?

British Airways is the most popular carrier operating from Belfast to Illinois

Cheap Belfast to Illinois flight deals and tips

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

Best Price Found	$434
Fastest flight time	15h 50m
Direct flights	None

The best one-way flight to Illinois from Belfast in the past 72 hours is $434. The best round-trip flight deal from Belfast to Illinois found on momondo in the last 72 hours is $828.

The fastest flight from Belfast to Illinois takes 15h 50m

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

Search flight deals

Frequently asked questions about flying from Belfast to Illinois

When did momondo last update prices for flights from Belfast to Illinois?
Prices for flights from Belfast to Illinois refresh daily.
How old do you have to be to fly from Belfast to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Illinois from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to Illinois.

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

Price alerts on flights to Illinois from Belfast 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.