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 March 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.

£315 Cheap Flights from Belfast to Illinois in 2026

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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.

09:10 - 18:31

BFS

ORD

39h 21m

3 stops

19:25 - 15:35

ORD

BFS

14h 10m

2 stops

£602Multiple Airlines

Mon, 13 Apr - Mon, 20 Apr

21:05 - 00:22

BFS

ORD

33h 17m

3 stops

19:25 - 21:55

ORD

BFS

20h 30m

3 stops

£614Multiple Airlines

Sun, 12 Apr - Sun, 19 Apr

22:00 - 15:55

BFS

ORD

23h 55m

2 stops

19:25 - 21:30

ORD

BFS

20h 05m

2 stops

£615Multiple Airlines

Sun, 12 Apr - Sun, 19 Apr

21:05 - 00:22

BFS

ORD

33h 17m

3 stops

19:25 - 21:30

ORD

BFS

20h 05m

2 stops

£616Multiple Airlines

Sun, 12 Apr - Sun, 19 Apr

10:40 - 18:00

BHD

ORD

12h 20m

1 stop

21:35 - 14:15

ORD

BHD

11h 40m

1 stop

£652British Airways

Thu, 19 Mar - Mon, 23 Mar

06:35 - 16:25

BHD

ORD

14h 50m

1 stop

15:16 - 14:15

ORD

BHD

17h 59m

2 stops

£653British Airways

Thu, 19 Mar - Mon, 23 Mar

06:45 - 18:00

BHD

ORD

16h 15m

1 stop

13:39 - 11:30

ORD

BHD

16h 51m

2 stops

£655British Airways

Fri, 13 Mar - Tue, 17 Mar

06:30 - 15:20

BHD

ORD

13h 50m

1 stop

10:40 - 16:50

ORD

BHD

25h 10m

2 stops

£670Delta

Fri, 13 Mar - Tue, 17 Mar

06:45 - 16:25

BHD

ORD

14h 40m

1 stop

18:10 - 11:30

ORD

BHD

12h 20m

1 stop

£680American Airlines

Fri, 13 Mar - Tue, 17 Mar

17:30 - 15:10

BHD

ORD

51h 40m

2 stops

19:14 - 09:20

ORD

BHD

32h 06m

2 stops

£804KLM

Sun, 29 Mar - Sun, 5 Apr

KLM flights from Belfast to Illinois

Our best KLM deals on Belfast to Illinois flight tickets

KLM

29 Mar

BHD17:30Belfast City

51h 40m

2 stops

ORD15:10Chicago O'Hare Intl

5 Apr

ORD19:14Chicago O'Hare Intl

32h 06m

2 stops

BHD09:20Belfast City

£804

KLM

29 Mar

BHD17:30Belfast City

27h 00m

1 stop

ORD14:30Chicago O'Hare Intl

5 Apr

ORD19:14Chicago O'Hare Intl

32h 06m

2 stops

BHD09:20Belfast City

£820

KLM

29 Mar

BHD17:30Belfast City

27h 00m

1 stop

ORD14:30Chicago O'Hare Intl

5 Apr

ORD16:20Chicago O'Hare Intl

18h 35m

1 stop

BHD16:55Belfast City

£842

British Airways flights from Belfast to Illinois

Our best British Airways deals on Belfast to Illinois flight tickets

British Airways

19 Mar

BHD10:40Belfast City

12h 20m

1 stop

ORD18:00Chicago O'Hare Intl

23 Mar

ORD21:35Chicago O'Hare Intl

11h 40m

1 stop

BHD14:15Belfast City

£652

British Airways

19 Mar

BHD06:35Belfast City

14h 50m

1 stop

ORD16:25Chicago O'Hare Intl

23 Mar

ORD15:16Chicago O'Hare Intl

17h 59m

2 stops

BHD14:15Belfast City

£653

British Airways

13 Mar

BHD06:45Belfast City

16h 15m

1 stop

ORD18:00Chicago O'Hare Intl

17 Mar

ORD13:39Chicago O'Hare Intl

16h 51m

2 stops

BHD11:30Belfast City

£655

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/4

09:10-18:31

3 stops39h 21m

Chicago O'Hare Intl

Mon 20/4

19:25-15:35

2 stops14h 10m

£602

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 12/4

21:05-00:22

3 stops33h 17m

Chicago O'Hare Intl

Sun 19/4

19:25-21:55

3 stops20h 30m

£614

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 12/4

22:00-15:55

2 stops23h 55m

Chicago O'Hare Intl

Sun 19/4

19:25-21:30

2 stops20h 05m

£615

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 12/4

21:05-00:22

3 stops33h 17m

Chicago O'Hare Intl

Sun 19/4

19:25-21:30

2 stops20h 05m

£616

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 19/3

10:40-18:00

1 stop12h 20m

Chicago O'Hare Intl

Mon 23/3

21:35-14:15

1 stop11h 40m

£652

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 19/3

06:35-16:25

1 stop14h 50m

Chicago O'Hare Intl

Mon 23/3

15:16-14:15

2 stops17h 59m

£653

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 13/3

06:45-18:00

1 stop16h 15m

Chicago O'Hare Intl

Tue 17/3

13:39-11:30

2 stops16h 51m

£655

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 13/3

06:30-15:20

1 stop13h 50m

Chicago O'Hare Intl

Tue 17/3

10:40-16:50

2 stops25h 10m

£670

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 13/3

06:45-16:25

1 stop14h 40m

Chicago O'Hare Intl

Tue 17/3

18:10-11:30

1 stop12h 20m

£680

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 29/3

17:30-15:10

2 stops51h 40m

Chicago O'Hare Intl

Sun 5/4

19:14-09:20

2 stops32h 06m

£804

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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 20m
Direct flights	None

The fastest flight from Belfast to Illinois takes 12h 20m

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

Search flight deals

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 March 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 7,772 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.