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.

£335 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

21:15 - 22:45ORD-BFS

20h 30m3 stops

21:30 - 14:45BFS-ORD

47h 15m3 stops

£537Multiple Airlines

Find Deal

金, 31 10月 - 金, 7 11月

20:20 - 22:40ORD-BFS

21h 20m2 stops

06:00 - 14:45BFS-ORD

38h 45m3 stops

£583Multiple Airlines

Find Deal

土, 1 11月 - 土, 8 11月

20:20 - 22:40ORD-BFS

21h 20m3 stops

06:00 - 14:45BFS-ORD

38h 45m3 stops

£585Multiple Airlines

Find Deal

土, 1 11月 - 土, 8 11月

20:40 - 22:00ORD-BFS

20h 20m2 stops

07:05 - 17:55BFS-ORD

16h 50m2 stops

£599Multiple Airlines

Find Deal

金, 31 10月 - 金, 7 11月

18:45 - 15:10ORD-BFS

15h 25m2 stops

21:30 - 14:45BFS-ORD

47h 15m3 stops

£615Multiple Airlines

Find Deal

金, 31 10月 - 金, 7 11月

08:40 - 11:00ORD-BFS

20h 20m3 stops

09:40 - 10:50BFS-ORD

31h 10m3 stops

£654Multiple Airlines

Find Deal

土, 4 10月 - 土, 11 10月

10:35 - 11:00ORD-BFS

18h 25m2 stops

09:40 - 10:50BFS-ORD

31h 10m3 stops

£679Multiple Airlines

Find Deal

土, 4 10月 - 土, 11 10月

20:20 - 22:40ORD-BFS

21h 20m2 stops

23:10 - 14:00BFS-ORD

20h 50m2 stops

£696Multiple Airlines

Find Deal

土, 1 11月 - 土, 8 11月

18:20 - 13:50ORD-BFS

14h 30m1 stop

20:50 - 14:00BFS-ORD

23h 10m2 stops

£811Multiple Airlines

Find Deal

金, 31 10月 - 金, 7 11月

10:35 - 11:00ORD-BFS

18h 25m2 stops

16:50 - 16:10BFS-ORD

29h 20m2 stops

£837Multiple Airlines

Find Deal

土, 4 10月 - 土, 11 10月

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

金 31/10

21:15-22:45

3 stops20h 30m

Belfast Intl

金 7/11

21:30-14:45

3 stops47h 15m

£537

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

土 1/11

20:20-22:40

2 stops21h 20m

Belfast Intl

土 8/11

06:00-14:45

3 stops38h 45m

£582

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

土 1/11

20:20-22:40

3 stops21h 20m

Belfast Intl

土 8/11

06:00-14:45

3 stops38h 45m

£585

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

金 31/10

20:40-22:00

2 stops20h 20m

Belfast Intl

金 7/11

07:05-17:55

2 stops16h 50m

£599

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

金 31/10

18:45-15:10

2 stops15h 25m

Belfast Intl

金 7/11

21:30-14:45

3 stops47h 15m

£615

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

土 4/10

08:40-11:00

3 stops20h 20m

Belfast Intl

土 11/10

09:40-10:50

3 stops31h 10m

£654

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

土 4/10

10:35-11:00

2 stops18h 25m

Belfast Intl

土 11/10

09:40-10:50

3 stops31h 10m

£679

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

土 1/11

20:20-22:40

2 stops21h 20m

Belfast Intl

土 8/11

23:10-14:00

2 stops20h 50m

£696

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

金 31/10

18:20-13:50

1 stop14h 30m

Belfast Intl

金 7/11

20:50-14:00

2 stops23h 10m

£811

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

土 4/10

10:35-11:00

2 stops18h 25m

Belfast Intl

土 11/10

16:50-16:10

2 stops29h 20m

£837

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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

Direct flights	None

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.