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.

£239 Cheap Flights from Illinois to Belfast Intl Airport in 2026

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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.

11:25 - 23:20

ORD

BFS

29h 55m

2 stops

08:50 - 09:40

BFS

ORD

30h 50m

2 stops

£629Multiple Airlines

Tue, 28 Apr - Tue, 5 May

19:25 - 19:50

ORD

BFS

18h 25m

3 stops

07:35 - 16:00

BFS

ORD

38h 25m

3 stops

£652Multiple Airlines

Tue, 28 Apr - Tue, 5 May

19:25 - 15:15

ORD

BFS

13h 50m

2 stops

07:35 - 16:00

BFS

ORD

38h 25m

3 stops

£658Multiple Airlines

Tue, 28 Apr - Tue, 5 May

16:05 - 22:30

ORD

BFS

24h 25m

2 stops

16:30 - 12:35

BFS

ORD

26h 05m

2 stops

£722Multiple Airlines

Wed, 29 Apr - Sun, 3 May

09:55 - 19:40

ORD

BFS

27h 45m

2 stops

08:40 - 19:50

BFS

ORD

41h 10m

3 stops

£729Multiple Airlines

Tue, 26 May - Mon, 31 Aug

14:20 - 21:50

ORD

BFS

25h 30m

2 stops

07:40 - 11:50

BFS

ORD

34h 10m

2 stops

£739Multiple Airlines

Sun, 26 Jul - Sat, 8 Aug

09:55 - 19:40

ORD

BFS

27h 45m

2 stops

08:15 - 21:25

BFS

ORD

19h 10m

2 stops

£745Multiple Airlines

Tue, 26 May - Mon, 31 Aug

19:05 - 22:20

ORD

BFS

21h 15m

2 stops

16:30 - 23:56

BFS

ORD

37h 26m

3 stops

£748Multiple Airlines

Wed, 29 Apr - Sun, 3 May

19:05 - 22:20

ORD

BFS

21h 15m

2 stops

08:30 - 11:50

BFS

ORD

33h 20m

2 stops

£758Multiple Airlines

Wed, 22 Jul - Wed, 29 Jul

10:43 - 21:50

ORD

BFS

29h 07m

2 stops

07:30 - 19:15

BFS

ORD

17h 45m

2 stops

£761Multiple Airlines

Fri, 29 May - Wed, 3 Jun

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

Cheapest return flight

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 28/4

11:25-23:20

2 stops29h 55m

Belfast Intl

Tue 5/5

08:50-09:40

2 stops30h 50m

£629

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 28/4

19:25-19:50

3 stops18h 25m

Belfast Intl

Tue 5/5

07:35-16:00

3 stops38h 25m

£652

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 28/4

19:25-15:15

2 stops13h 50m

Belfast Intl

Tue 5/5

07:35-16:00

3 stops38h 25m

£658

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 29/4

16:05-22:30

2 stops24h 25m

Belfast Intl

Sun 3/5

16:30-12:35

2 stops26h 05m

£722

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 26/5

09:55-19:40

2 stops27h 45m

Belfast Intl

Mon 31/8

08:40-19:50

3 stops41h 10m

£729

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 26/7

14:20-21:50

2 stops25h 30m

Belfast Intl

Sat 8/8

07:40-11:50

2 stops34h 10m

£739

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 26/5

09:55-19:40

2 stops27h 45m

Belfast Intl

Mon 31/8

08:15-21:25

2 stops19h 10m

£745

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 29/4

19:05-22:20

2 stops21h 15m

Belfast Intl

Sun 3/5

16:30-23:56

3 stops37h 26m

£748

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 22/7

19:05-22:20

2 stops21h 15m

Belfast Intl

Wed 29/7

08:30-11:50

2 stops33h 20m

£758

Fastest return journey

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 29/5

10:43-21:50

2 stops29h 07m

Belfast Intl

Wed 3/6

07:30-19:15

2 stops17h 45m

£761

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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	11h 00m
Direct flights	None

The fastest flight from Illinois to Belfast Intl Airport takes 11h 00m

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

Frequently asked questions about flying from Illinois to Belfast Intl Airport

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.

Frequently asked questions about flying from Illinois to Belfast Intl Airport

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.