How do I get Price Alerts for flights from Belfast to Illinois?

Confirm your travel details to search for the latest offers for flights from Belfast to Illinois . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Belfast to Illinois with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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 December 2025.

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.

£499 Cheap Flights from Belfast to Illinois in 2025/26

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Find the cheapest flights from Belfast to Illinois

Round-trip

Cheap return flights

Enter your travel dates to find the best prices.

19:35 - 13:50

BHD

ORD

24h 15m1 stop

15:21 - 16:05

ORD

BHD

18h 44m2 stops

£499British Airways

Fri, 6 Feb - Mon, 9 Feb

06:45 - 17:42

BHD

ORD

16h 57m2 stops

16:14 - 14:15

ORD

BHD

16h 01m2 stops

£503British Airways

Fri, 6 Feb - Mon, 9 Feb

06:35 - 17:56

BHD

ORD

17h 21m2 stops

16:30 - 14:15

ORD

BHD

15h 45m2 stops

£503British Airways

Thu, 19 Feb - Mon, 23 Feb

06:45 - 17:42

BHD

ORD

16h 57m2 stops

11:44 - 09:05

ORD

BHD

15h 21m2 stops

£521British Airways

Fri, 6 Feb - Mon, 9 Feb

08:45 - 20:04

BHD

ORD

17h 19m2 stops

17:26 - 10:20

ORD

BHD

34h 54m2 stops

£523British Airways

Tue, 20 Jan - Sat, 24 Jan

17:15 - 15:25

BHD

ORD

28h 10m1 stop

17:26 - 10:20

ORD

BHD

34h 54m2 stops

£540British Airways

Tue, 20 Jan - Sat, 24 Jan

06:30 - 17:20

BFS

ORD

16h 50m2 stops

18:30 - 20:10

ORD

BFS

19h 40m2 stops

£553Multiple Airlines

Tue, 10 Feb - Tue, 17 Feb

10:35 - 09:13

BFS

ORD

28h 38m3 stops

21:50 - 22:35

ORD

BFS

18h 45m2 stops

£675Multiple Airlines

Tue, 10 Feb - Tue, 17 Feb

17:20 - 17:20

BHD

ORD

30h 00m3 stops

18:30 - 18:35

ORD

BHD

18h 05m2 stops

£718Multiple Airlines

Tue, 20 Jan - Sat, 24 Jan

17:20 - 14:20

BHD

ORD

27h 00m1 stop

16:25 - 16:50

ORD

BHD

18h 25m1 stop

£1,106KLM

Tue, 20 Jan - Sat, 24 Jan

British Airways flights from Belfast to Illinois

Our best British Airways deals on Belfast to Illinois flight tickets

British Airways

6 Feb

BHD19:35Belfast City

24h 15m

1 stop

ORD13:50Chicago O'Hare Intl

9 Feb

ORD15:21Chicago O'Hare Intl

18h 44m

2 stops

BHD16:05Belfast City

£499

Find similar

British Airways

6 Feb

BHD06:45Belfast City

16h 57m

2 stops

ORD17:42Chicago O'Hare Intl

9 Feb

ORD16:14Chicago O'Hare Intl

16h 01m

2 stops

BHD14:15Belfast City

£503

Find similar

British Airways

19 Feb

BHD06:35Belfast City

17h 21m

2 stops

ORD17:56Chicago O'Hare Intl

23 Feb

ORD16:30Chicago O'Hare Intl

15h 45m

2 stops

BHD14:15Belfast City

£503

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 6/2

19:35-13:50

1 stop24h 15m

Chicago O'Hare Intl

Mon 9/2

15:21-16:05

2 stops18h 44m

£499

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 6/2

06:45-17:42

2 stops16h 57m

Chicago O'Hare Intl

Mon 9/2

16:14-14:15

2 stops16h 01m

£503

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 19/2

06:35-17:56

2 stops17h 21m

Chicago O'Hare Intl

Mon 23/2

16:30-14:15

2 stops15h 45m

£503

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 6/2

06:45-17:42

2 stops16h 57m

Chicago O'Hare Intl

Mon 9/2

11:44-09:05

2 stops15h 21m

£521

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 20/1

08:45-20:04

2 stops17h 19m

Chicago O'Hare Intl

Sat 24/1

17:26-10:20

2 stops34h 54m

£523

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 20/1

17:15-15:25

1 stop28h 10m

Chicago O'Hare Intl

Sat 24/1

17:26-10:20

2 stops34h 54m

£540

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 10/2

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Tue 17/2

18:30-20:10

2 stops19h 40m

£553

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 10/2

10:35-09:13

3 stops28h 38m

Chicago O'Hare Intl

Tue 17/2

21:50-22:35

2 stops18h 45m

£675

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 20/1

17:20-17:20

3 stops30h 00m

Chicago O'Hare Intl

Sat 24/1

18:30-18:35

2 stops18h 05m

£718

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 20/1

17:20-14:20

1 stop27h 00m

Chicago O'Hare Intl

Sat 24/1

16:25-16:50

1 stop18h 25m

£1,106

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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	17h 19m
Direct flights	None

The fastest flight from Belfast to Illinois takes 17h 19m

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 December 2025.
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 £481	Free Cancellation	Rating 6.7 7,616 reviews		Search British Airways flights

How do I get Price Alerts for flights from Belfast to Illinois?
Confirm your travel details to search for the latest offers for flights from Belfast to Illinois. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Belfast to Illinois with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.