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

Prices for flights from Belfast to Illinois were last updated today.

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 necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£368 Cheap Flights from Belfast to Illinois in 2026/27

Find the cheapest flights from Belfast to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:25 - 08:04BHD Belfast City-ORD Chicago O'Hare Intl

22h 39m2 stops London Heathrow Boston Logan Intl

21:11 - 10:50ORD Chicago O'Hare Intl-BHD Belfast City

31h 39m2 stops Philadelphia London Heathrow

£707Iberia

Thu, 3 Dec - Mon, 7 Dec

15:25 - 15:35BHD Belfast City-ORD Chicago O'Hare Intl

30h 10m1 stop London Heathrow

21:50 - 15:55ORD Chicago O'Hare Intl-BHD Belfast City

12h 05m1 stop London Heathrow

£732Iberia

Thu, 3 Dec - Mon, 7 Dec

06:35 - 18:45BHD Belfast City-ORD Chicago O'Hare Intl

18h 10m1 stop London Heathrow

17:10 - 10:45ORD Chicago O'Hare Intl-BHD Belfast City

11h 35m1 stop London Heathrow

£786British Airways

Wed, 2 Dec - Sun, 6 Dec

14:10 - 13:45BHD Belfast City-ORD Chicago O'Hare Intl

29h 35m1 stop London Heathrow

21:50 - 17:25ORD Chicago O'Hare Intl-BHD Belfast City

13h 35m1 stop London Heathrow

£787British Airways

Thu, 3 Dec - Mon, 7 Dec

08:40 - 20:23BHD Belfast City-ORD Chicago O'Hare Intl

17h 43m2 stops London Heathrow Philadelphia

21:50 - 18:50ORD Chicago O'Hare Intl-BHD Belfast City

15h 00m1 stop London Heathrow

£790British Airways

Wed, 2 Dec - Sun, 6 Dec

09:40 - 18:01BHD Belfast City-MDW Chicago Midway

38h 21m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

12:39 - 16:45MDW Chicago Midway-BHD Belfast City

22h 06m2 stops Minneapolis St Paul Amsterdam Schiphol

£791Virgin Atlantic

Thu, 3 Dec - Mon, 7 Dec

08:40 - 20:23BHD Belfast City-ORD Chicago O'Hare Intl

17h 43m2 stops London Heathrow Philadelphia

21:50 - 18:50ORD Chicago O'Hare Intl-BHD Belfast City

15h 00m1 stop London Heathrow

£791British Airways

Wed, 2 Dec - Sun, 6 Dec

08:40 - 20:23BHD Belfast City-ORD Chicago O'Hare Intl

17h 43m2 stops London Heathrow Philadelphia

21:50 - 18:50ORD Chicago O'Hare Intl-BHD Belfast City

15h 00m1 stop London Heathrow

£792British Airways

Wed, 2 Dec - Sun, 6 Dec

08:40 - 20:23BHD Belfast City-ORD Chicago O'Hare Intl

17h 43m2 stops London Heathrow Philadelphia

11:35 - 10:45ORD Chicago O'Hare Intl-BHD Belfast City

17h 10m2 stops Charlotte Douglas London Heathrow

£822British Airways

Wed, 2 Dec - Sun, 6 Dec

08:40 - 20:23BHD Belfast City-ORD Chicago O'Hare Intl

17h 43m2 stops London Heathrow Philadelphia

11:35 - 10:45ORD Chicago O'Hare Intl-BHD Belfast City

17h 10m2 stops Charlotte Douglas London Heathrow

£823British Airways

Wed, 2 Dec - Sun, 6 Dec

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Iberia flights from Belfast to Illinois

Our best Iberia deals on Belfast to Illinois flight tickets

Iberia

3 Dec

BHD15:25Belfast City

22h 39m

2 stops

ORD08:04Chicago O'Hare Intl

7 Dec

ORD21:11Chicago O'Hare Intl

31h 39m

2 stops

BHD10:50Belfast City

£707

Iberia

3 Dec

BHD15:25Belfast City

30h 10m

1 stop

ORD15:35Chicago O'Hare Intl

7 Dec

ORD21:50Chicago O'Hare Intl

12h 05m

1 stop

BHD15:55Belfast City

£732

British Airways flights from Belfast to Illinois

Our best British Airways deals on Belfast to Illinois flight tickets

British Airways

2 Dec

BHD06:35Belfast City

18h 10m

1 stop

ORD18:45Chicago O'Hare Intl

6 Dec

ORD17:10Chicago O'Hare Intl

11h 35m

1 stop

BHD10:45Belfast City

£786

British Airways

3 Dec

BHD20:00Belfast City

28h 45m

1 stop

ORD18:45Chicago O'Hare Intl

7 Dec

ORD15:20Chicago O'Hare Intl

16h 55m

2 stops

BHD14:15Belfast City

£787

British Airways

2 Dec

BHD08:40Belfast City

17h 43m

2 stops

ORD20:23Chicago O'Hare Intl

6 Dec

ORD21:50Chicago O'Hare Intl

15h 00m

1 stop

BHD18:50Belfast City

£790

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 3/12

15:25-08:04

2 stops22h 39m

Chicago O'Hare Intl

Mon 7/12

21:11-10:50

2 stops31h 39m

£707

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 3/12

15:25-15:35

1 stop30h 10m

Chicago O'Hare Intl

Mon 7/12

21:50-15:55

1 stop12h 05m

£732

Fastest return journey

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

06:35-18:45

1 stop18h 10m

Chicago O'Hare Intl

Sun 6/12

17:10-10:45

1 stop11h 35m

£786

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 3/12

14:10-13:45

1 stop29h 35m

Chicago O'Hare Intl

Mon 7/12

21:50-17:25

1 stop13h 35m

£787

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

08:40-20:23

2 stops17h 43m

Chicago O'Hare Intl

Sun 6/12

21:50-18:50

1 stop15h 00m

£790

BelfastChicago

BHD Belfast City - MDW Chicago Midway

BHDMDW

Belfast City

Thu 3/12

09:40-18:01

2 stops38h 21m

Chicago Midway

Mon 7/12

12:39-16:45

2 stops22h 06m

£791

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

08:40-20:23

2 stops17h 43m

Chicago O'Hare Intl

Sun 6/12

21:50-18:50

1 stop15h 00m

£791

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

08:40-20:23

2 stops17h 43m

Chicago O'Hare Intl

Sun 6/12

21:50-18:50

1 stop15h 00m

£792

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

08:40-20:23

2 stops17h 43m

Chicago O'Hare Intl

Sun 6/12

11:35-10:45

2 stops17h 10m

£822

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

08:40-20:23

2 stops17h 43m

Chicago O'Hare Intl

Sun 6/12

11:35-10:45

2 stops17h 10m

£823

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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?

KLM 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	£368
Fastest flight time	15h 45m
Direct flights	None

The best one-way flight to Illinois from Belfast in the past 72 hours is £368. The best return flight deal from Belfast to Illinois found on momondo in the last 72 hours is £707.

The fastest flight from Belfast to Illinois takes 15h 45m

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 were last updated today.
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 necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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?

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 Illinois from Belfast.

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

Flights from Belfast to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Illinois from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Belfast and alert you when they change.