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

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

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

There is 1 operator available for flights from Belfast to Illinois as of April 2026.

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.

£296 Cheap Flights from Belfast to Illinois in 2026

1 adult

0 bags

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Find the cheapest flights from Belfast to Illinois

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

22:10 - 21:25

BFS

ORD

29h 15m

3 stops

09:55 - 21:00

ORD

BFS

29h 05m

2 stops

£679Multiple Airlines

Sun, 7 Jun - Sun, 14 Jun

07:35 - 22:05

BFS

ORD

20h 30m

2 stops

09:55 - 21:10

ORD

BFS

29h 15m

2 stops

£699Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

15:50 - 12:30

BHD

ORD

26h 40m

1 stop

22:35 - 15:30

ORD

BHD

10h 55m

1 stop

£712British Airways

Sun, 27 Sep - Thu, 1 Oct

06:30 - 15:00

BHD

ORD

14h 30m

1 stop

22:35 - 18:45

ORD

BHD

14h 10m

1 stop

£714British Airways

Thu, 1 Oct - Mon, 5 Oct

06:30 - 17:35

BHD

ORD

17h 05m

1 stop

18:26 - 15:30

ORD

BHD

15h 04m

2 stops

£715British Airways

Thu, 1 Oct - Mon, 5 Oct

16:55 - 16:59

BFS

ORD

30h 04m

3 stops

09:55 - 15:55

ORD

BFS

24h 00m

2 stops

£717Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

06:30 - 17:20

BHD

ORD

16h 50m

2 stops

18:26 - 15:30

ORD

BHD

15h 04m

2 stops

£719British Airways

Thu, 1 Oct - Mon, 5 Oct

06:10 - 21:25

BFS

ORD

21h 15m

2 stops

22:25 - 20:25

ORD

BFS

16h 00m

2 stops

£736Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

06:55 - 13:10

BFS

ORD

36h 15m

3 stops

09:55 - 18:55

ORD

BFS

27h 00m

3 stops

£737Multiple Airlines

Sat, 6 Jun - Sat, 13 Jun

19:10 - 16:00

BHD

ORD

26h 50m

2 stops

19:05 - 15:30

ORD

BHD

14h 25m

1 stop

£737Multiple Airlines

Sun, 27 Sep - Thu, 1 Oct

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British Airways flights from Belfast to Illinois

Our best British Airways deals on Belfast to Illinois flight tickets

British Airways

27 Sept

BHD15:50Belfast City

26h 40m

1 stop

ORD12:30Chicago O'Hare Intl

1 Oct

ORD22:35Chicago O'Hare Intl

10h 55m

1 stop

BHD15:30Belfast City

£712

British Airways

1 Oct

BHD06:30Belfast City

14h 30m

1 stop

ORD15:00Chicago O'Hare Intl

5 Oct

ORD22:35Chicago O'Hare Intl

14h 10m

1 stop

BHD18:45Belfast City

£714

British Airways

1 Oct

BHD06:30Belfast City

17h 05m

1 stop

ORD17:35Chicago O'Hare Intl

5 Oct

ORD18:26Chicago O'Hare Intl

15h 04m

2 stops

BHD15:30Belfast City

£715

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 7/6

22:10-21:25

3 stops29h 15m

Chicago O'Hare Intl

Sun 14/6

09:55-21:00

2 stops29h 05m

£679

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 3/6

07:35-22:05

2 stops20h 30m

Chicago O'Hare Intl

Wed 10/6

09:55-21:10

2 stops29h 15m

£699

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 27/9

15:50-12:30

1 stop26h 40m

Chicago O'Hare Intl

Thu 1/10

22:35-15:30

1 stop10h 55m

£712

Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/10

06:30-15:00

1 stop14h 30m

Chicago O'Hare Intl

Mon 5/10

22:35-18:45

1 stop14h 10m

£714

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/10

06:30-17:35

1 stop17h 05m

Chicago O'Hare Intl

Mon 5/10

18:26-15:30

2 stops15h 04m

£715

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 3/6

16:55-16:59

3 stops30h 04m

Chicago O'Hare Intl

Wed 10/6

09:55-15:55

2 stops24h 00m

£717

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/10

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Mon 5/10

18:26-15:30

2 stops15h 04m

£719

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 8/6

06:10-21:25

2 stops21h 15m

Chicago O'Hare Intl

Mon 15/6

22:25-20:25

2 stops16h 00m

£736

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 6/6

06:55-13:10

3 stops36h 15m

Chicago O'Hare Intl

Sat 13/6

09:55-18:55

3 stops27h 00m

£737

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 27/9

19:10-16:00

2 stops26h 50m

Chicago O'Hare Intl

Thu 1/10

19:05-15:30

1 stop14h 25m

£737

Flights are sorted by cheapest return 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

Fastest flight time	12h 00m
Direct flights	None

The fastest flight from Belfast to Illinois takes 12h 00m

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 many operators does momondo search for flights from Belfast to Illinois?
There is 1 operator available for flights from Belfast to Illinois as of April 2026.
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.

Best airlines flying from Belfast to Illinois

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £497	Free Cancellation	Rating 6.7 7,912 reviews		Search British Airways flights

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.