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

Confirm your travel details to search for the latest offers for flights from Illinois to Belfast Intl Airport . 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 Illinois to Belfast Intl Airport with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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

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

How old do you have to be to fly from Illinois to Belfast Intl Airport?

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 Illinois to Belfast Intl Airport.

What documentation or ID do you need to fly to Belfast Intl Airport?

The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£465 Cheap Flights from Illinois to Belfast Intl Airport in 2025/26

1 adult

0 bags

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Find the cheapest flights from Illinois to Belfast

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

18:30 - 13:30

ORD

BFS

13h 00m2 stops

07:55 - 17:20

BFS

ORD

15h 25m2 stops

£483Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

18:30 - 23:50

ORD

BFS

23h 20m3 stops

19:30 - 17:20

BFS

ORD

27h 50m3 stops

£496Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

18:50 - 22:40

ORD

BFS

21h 50m2 stops

23:10 - 17:20

BFS

ORD

24h 10m3 stops

£536Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

19:30 - 20:15

ORD

BFS

19h 45m2 stops

08:05 - 21:00

BFS

ORD

41h 55m3 stops

£605Multiple Airlines

Mon, 16 Mar - Fri, 20 Mar

08:40 - 22:20

ORD

BFS

31h 40m3 stops

21:15 - 18:15

BFS

ORD

27h 00m3 stops

£608Multiple Airlines

Wed, 1 Apr - Tue, 7 Apr

20:15 - 22:00

ORD

BFS

19h 45m2 stops

06:30 - 11:27

BFS

ORD

34h 57m3 stops

£627Multiple Airlines

Fri, 20 Feb - Fri, 27 Feb

07:15 - 20:15

ORD

BFS

32h 00m3 stops

08:05 - 21:00

BFS

ORD

41h 55m3 stops

£657Multiple Airlines

Mon, 16 Mar - Fri, 20 Mar

19:30 - 20:15

ORD

BFS

19h 45m2 stops

18:00 - 15:00

BFS

ORD

26h 00m2 stops

£680Multiple Airlines

Mon, 16 Mar - Fri, 20 Mar

11:25 - 19:15

ORD

BFS

25h 50m2 stops

05:55 - 09:40

BFS

ORD

33h 45m2 stops

£715Multiple Airlines

Wed, 1 Apr - Tue, 7 Apr

07:15 - 22:00

ORD

BFS

32h 45m3 stops

06:30 - 11:27

BFS

ORD

34h 57m3 stops

£716Multiple Airlines

Fri, 20 Feb - Fri, 27 Feb

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 24/1

18:30-13:30

2 stops13h 00m

Belfast Intl

Sat 31/1

07:55-17:20

2 stops15h 25m

£483

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 24/1

18:30-23:50

3 stops23h 20m

Belfast Intl

Sat 31/1

19:30-17:20

3 stops27h 50m

£496

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 24/1

18:50-22:40

2 stops21h 50m

Belfast Intl

Sat 31/1

23:10-17:20

3 stops24h 10m

£536

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 16/3

19:30-20:15

2 stops19h 45m

Belfast Intl

Fri 20/3

08:05-21:00

3 stops41h 55m

£605

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 1/4

08:40-22:20

3 stops31h 40m

Belfast Intl

Tue 7/4

21:15-18:15

3 stops27h 00m

£608

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 20/2

20:15-22:00

2 stops19h 45m

Belfast Intl

Fri 27/2

06:30-11:27

3 stops34h 57m

£627

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 16/3

07:15-20:15

3 stops32h 00m

Belfast Intl

Fri 20/3

08:05-21:00

3 stops41h 55m

£657

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 16/3

19:30-20:15

2 stops19h 45m

Belfast Intl

Fri 20/3

18:00-15:00

2 stops26h 00m

£680

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 1/4

11:25-19:15

2 stops25h 50m

Belfast Intl

Tue 7/4

05:55-09:40

2 stops33h 45m

£715

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 20/2

07:15-22:00

3 stops32h 45m

Belfast Intl

Fri 27/2

06:30-11:27

3 stops34h 57m

£716

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

Cheap Illinois to Belfast Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Belfast Intl Airport

Fastest flight time	10h 30m
Direct flights	None

The fastest flight from Illinois to Belfast Intl Airport takes 10h 30m

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

Search flight deals

When did momondo last update prices for flights from Illinois to Belfast Intl Airport?
Prices for flights from Illinois to Belfast Intl Airport were last updated today.
How old do you have to be to fly from Illinois to Belfast Intl Airport?
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 Illinois to Belfast Intl Airport.
What documentation or ID do you need to fly to Belfast Intl Airport?
The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Illinois to Belfast Intl Airport?
Confirm your travel details to search for the latest offers for flights from Illinois to Belfast Intl Airport. 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 Illinois to Belfast Intl Airport with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Ballymena

Newry

Armagh

Cookstown

Dungannon

Portadown

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Belfast?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Belfast. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Illinois to Belfast flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Illinois and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Belfast from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.