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.

£174 Cheap Flights from Illinois to Belfast Intl Airport in 2026

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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 - 13:25

ORD

BFS

12h 55m

2 stops

06:00 - 17:20

BFS

ORD

17h 20m

2 stops

£443Multiple Airlines

Tue, 3 Mar - Sat, 7 Mar

18:30 - 13:25

ORD

BFS

12h 55m

2 stops

06:30 - 17:20

BFS

ORD

16h 50m

2 stops

£467Multiple Airlines

Tue, 24 Feb - Tue, 3 Mar

07:15 - 13:25

ORD

BFS

24h 10m

3 stops

22:25 - 18:25

BFS

ORD

26h 00m

2 stops

£521Multiple Airlines

Tue, 3 Mar - Sat, 7 Mar

12:50 - 16:00

ORD

BFS

21h 10m

3 stops

05:45 - 14:45

BFS

ORD

39h 00m

3 stops

£531Multiple Airlines

Tue, 3 Mar - Sat, 7 Mar

18:30 - 13:25

ORD

BFS

12h 55m

2 stops

08:35 - 00:40

BFS

ORD

46h 05m

3 stops

£586Multiple Airlines

Tue, 24 Feb - Tue, 3 Mar

18:51 - 20:10

ORD

BFS

19h 19m

3 stops

08:35 - 00:40

BFS

ORD

46h 05m

3 stops

£650Multiple Airlines

Tue, 24 Feb - Tue, 3 Mar

12:50 - 22:00

ORD

BFS

28h 10m

3 stops

19:55 - 19:50

BFS

ORD

29h 55m

3 stops

£685Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

16:50 - 22:00

ORD

BFS

24h 10m

2 stops

19:55 - 19:50

BFS

ORD

29h 55m

3 stops

£817Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

14:15 - 15:15

ORD

BFS

19h 00m

2 stops

07:00 - 16:00

BFS

ORD

39h 00m

3 stops

£820Multiple Airlines

Tue, 30 Jun - Thu, 2 Jul

08:45 - 15:15

ORD

BFS

24h 30m

3 stops

07:00 - 16:00

BFS

ORD

39h 00m

3 stops

£823Multiple Airlines

Tue, 30 Jun - Thu, 2 Jul

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

Tue 3/3

18:30-13:25

2 stops12h 55m

Belfast Intl

Sat 7/3

06:00-17:20

2 stops17h 20m

£443

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 24/2

18:30-13:25

2 stops12h 55m

Belfast Intl

Tue 3/3

06:30-17:20

2 stops16h 50m

£467

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 3/3

07:15-13:25

3 stops24h 10m

Belfast Intl

Sat 7/3

22:25-18:25

2 stops26h 00m

£521

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 3/3

12:50-16:00

3 stops21h 10m

Belfast Intl

Sat 7/3

05:45-14:45

3 stops39h 00m

£531

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 24/2

18:30-13:25

2 stops12h 55m

Belfast Intl

Tue 3/3

08:35-00:40

3 stops46h 05m

£586

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 24/2

18:51-20:10

3 stops19h 19m

Belfast Intl

Tue 3/3

08:35-00:40

3 stops46h 05m

£650

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 27/3

12:50-22:00

3 stops28h 10m

Belfast Intl

Fri 3/4

19:55-19:50

3 stops29h 55m

£685

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 27/3

16:50-22:00

2 stops24h 10m

Belfast Intl

Fri 3/4

19:55-19:50

3 stops29h 55m

£817

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 30/6

14:15-15:15

2 stops19h 00m

Belfast Intl

Thu 2/7

07:00-16:00

3 stops39h 00m

£820

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 30/6

08:45-15:15

3 stops24h 30m

Belfast Intl

Thu 2/7

07:00-16:00

3 stops39h 00m

£823

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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	14h 10m
Direct flights	None

The fastest flight from Illinois to Belfast Intl Airport takes 14h 10m

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

Portadown

Dungannon

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.