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 June 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.

£295 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.

06:40 - 21:25

BFS

ORD

44h 45m

3 stops

19:25 - 19:20

ORD

BFS

17h 55m

2 stops

£659Multiple Airlines

Tue, 15 Sep - Thu, 17 Sep

06:30 - 16:57

BFS

ORD

16h 27m

2 stops

22:25 - 23:20

ORD

BFS

18h 55m

2 stops

£692Multiple Airlines

Mon, 13 Jul - Mon, 20 Jul

06:30 - 16:57

BFS

ORD

16h 27m

2 stops

19:25 - 23:05

ORD

BFS

21h 40m

3 stops

£702Multiple Airlines

Mon, 13 Jul - Mon, 20 Jul

08:00 - 16:57

BFS

ORD

14h 57m

2 stops

22:25 - 22:35

ORD

BFS

18h 10m

2 stops

£704Multiple Airlines

Mon, 20 Jul - Mon, 27 Jul

06:40 - 21:25

BFS

ORD

44h 45m

3 stops

11:05 - 19:30

ORD

BFS

26h 25m

3 stops

£707Multiple Airlines

Tue, 15 Sep - Thu, 17 Sep

11:05 - 19:15

BHD

ORD

14h 10m

1 stop

17:10 - 13:55

ORD

BHD

14h 45m

1 stop

£715British Airways

Thu, 5 Nov - Sun, 8 Nov

11:05 - 19:15

BHD

ORD

14h 10m

1 stop

20:40 - 13:55

ORD

BHD

11h 15m

1 stop

£716British Airways

Thu, 5 Nov - Sun, 8 Nov

06:30 - 16:57

BFS

ORD

16h 27m

2 stops

17:35 - 16:25

ORD

BFS

16h 50m

2 stops

£716Multiple Airlines

Mon, 13 Jul - Mon, 20 Jul

06:35 - 17:05

BHD

ORD

16h 30m

1 stop

16:06 - 13:55

ORD

BHD

15h 49m

2 stops

£717British Airways

Thu, 5 Nov - Sun, 8 Nov

08:00 - 16:57

BFS

ORD

14h 57m

2 stops

19:25 - 23:05

ORD

BFS

21h 40m

3 stops

£718Multiple Airlines

Mon, 20 Jul - Mon, 27 Jul

American Airlines flights from Belfast to Illinois

Our best American Airlines deals on Belfast to Illinois flight tickets

American Airlines

13 Jul

BHD09:40Belfast City

13h 55m

1 stop

ORD17:35Chicago O'Hare Intl

20 Jul

ORD20:40Chicago O'Hare Intl

12h 50m

1 stop

BHD15:30Belfast City

£786

American Airlines

14 Jun

BHD06:30Belfast City

11h 55m

1 stop

ORD12:25Chicago O'Hare Intl

18 Jun

ORD22:30Chicago O'Hare Intl

11h 00m

1 stop

BHD15:30Belfast City

£8,613

British Airways flights from Belfast to Illinois

Our best British Airways deals on Belfast to Illinois flight tickets

British Airways

5 Nov

BHD11:05Belfast City

14h 10m

1 stop

ORD19:15Chicago O'Hare Intl

8 Nov

ORD17:10Chicago O'Hare Intl

14h 45m

1 stop

BHD13:55Belfast City

£715

British Airways

5 Nov

BHD11:05Belfast City

14h 10m

1 stop

ORD19:15Chicago O'Hare Intl

8 Nov

ORD20:40Chicago O'Hare Intl

11h 15m

1 stop

BHD13:55Belfast City

£716

British Airways

5 Nov

BHD11:05Belfast City

14h 10m

1 stop

ORD19:15Chicago O'Hare Intl

8 Nov

ORD20:40Chicago O'Hare Intl

11h 15m

1 stop

BHD13:55Belfast City

£717

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 15/9

06:40-21:25

3 stops44h 45m

Chicago O'Hare Intl

Thu 17/9

19:25-19:20

2 stops17h 55m

£659

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/7

06:30-16:57

2 stops16h 27m

Chicago O'Hare Intl

Mon 20/7

22:25-23:20

2 stops18h 55m

£692

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/7

06:30-16:57

2 stops16h 27m

Chicago O'Hare Intl

Mon 20/7

19:25-23:05

3 stops21h 40m

£702

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 20/7

08:00-16:57

2 stops14h 57m

Chicago O'Hare Intl

Mon 27/7

22:25-22:35

2 stops18h 10m

£704

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 15/9

06:40-21:25

3 stops44h 45m

Chicago O'Hare Intl

Thu 17/9

11:05-19:30

3 stops26h 25m

£707

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 5/11

11:05-19:15

1 stop14h 10m

Chicago O'Hare Intl

Sun 8/11

17:10-13:55

1 stop14h 45m

£715

Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 5/11

11:05-19:15

1 stop14h 10m

Chicago O'Hare Intl

Sun 8/11

20:40-13:55

1 stop11h 15m

£716

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/7

06:30-16:57

2 stops16h 27m

Chicago O'Hare Intl

Mon 20/7

17:35-16:25

2 stops16h 50m

£716

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 5/11

06:35-17:05

1 stop16h 30m

Chicago O'Hare Intl

Sun 8/11

16:06-13:55

2 stops15h 49m

£717

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 20/7

08:00-16:57

2 stops14h 57m

Chicago O'Hare Intl

Mon 27/7

19:25-23:05

3 stops21h 40m

£718

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	13h 15m
Direct flights	None

The fastest flight from Belfast to Illinois takes 13h 15m

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 June 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 £501	Free Cancellation	Rating 6.7 8,028 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.