How does KAYAK find such low prices on flights from Illinois to Belfast?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Belfast. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Belfast?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Belfast?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Belfast?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$255 CHEAP FLIGHTS from Illinois to Belfast

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

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Cheapest round-trip

$605

Multiple Airlines

Fri 1/30Fri 2/6

ORD - BFS • 2 stops

Cheapest one-way

$255

Multiple Airlines

Wed 1/14

ORD - BFS • 2 stops

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We hope you love your trip to Belfast!

Flight Deals

Cheap Flights from Illinois to Belfast

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Belfast

Fri, Jan 30 - Fri, Feb 6

6:30 pm - 10:00 pm

ORD

BFS

21h 30m2 stops

8:05 am - 5:20 pm

BFS

ORD

15h 15m2 stops

$605Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

6:30 pm - 10:00 pm

ORD

BFS

21h 30m2 stops

11:45 am - 5:20 pm

BFS

ORD

35h 35m3 stops

$611Multiple Airlines

Mon, Jan 12 - Tue, Jan 20

6:44 pm - 6:35 pm

STL

BHD

17h 51m2 stops

6:35 am - 6:16 pm

BHD

STL

17h 41m2 stops

$625British Airways

Sun, Jan 18 - Mon, Feb 2

6:30 pm - 6:55 pm

ORD

BFS

18h 25m2 stops

10:20 pm - 3:00 pm

BFS

ORD

46h 40m3 stops

$628Multiple Airlines

Mon, Jan 12 - Mon, Jan 19

4:33 pm - 4:05 pm

ORD

BHD

17h 32m2 stops

2:40 pm - 1:50 pm

BHD

ORD

29h 10m1 stop

$640British Airways

Sun, Jan 18 - Mon, Feb 2

11:05 am - 4:50 pm

ORD

BHD

23h 45m2 stops

5:20 pm - 5:45 pm

BHD

ORD

30h 25m2 stops

$671Virgin Atlantic

Sun, Jan 18 - Mon, Feb 2

5:59 pm - 4:50 pm

MDW

BHD

16h 51m2 stops

5:20 pm - 5:29 pm

BHD

MDW

30h 09m2 stops

$672KLM

Sun, Jan 18 - Sun, Jan 25

6:25 pm - 1:55 pm

ORD

BHD

13h 30m1 stop

9:10 am - 5:00 pm

BHD

ORD

13h 50m1 stop

$692American Airlines

Wed, Dec 31 - Wed, Jan 7

2:06 pm - 2:15 pm

STL

BHD

18h 09m2 stops

6:35 am - 6:34 pm

BHD

STL

17h 59m2 stops

$1,094American Airlines

Thu, Jan 29 - Sun, Feb 1

6:14 pm - 4:50 pm

MDW

BHD

16h 36m2 stops

5:20 pm - 5:29 pm

BHD

MDW

30h 09m2 stops

$1,095KLM

Useful Info

Cheapest flight	$255

Flight from Chicago to Belfast Intl Airport

How does KAYAK find such low prices on flights from Illinois to Belfast?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Belfast.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Belfast?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Belfast?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Belfast?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Belfast

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Illinois

First Class flights to Belfast

Business Class flights to Belfast

Prem Econ Class flights to Belfast

Economy Class flights to Belfast

$255 Find Cheap Flights from Illinois to Belfast

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

Everything you should know

Cheap Flights from Illinois to Belfast

Recent round-trip flight deals from Illinois to Belfast

Recent one-way flight deals from Illinois to Belfast

Recent last minute flight deals from Illinois to Belfast

Good to know

FAQs for booking flights from Illinois to Belfast

How does KAYAK find such low prices on flights from Illinois to Belfast?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Belfast.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Belfast?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Belfast?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Belfast?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Belfast

Cabin class types available on flights to Illinois

Complete your trip to Belfast with a hotel stay or car rental

Find direct flights for Belfast

Flights to other popular destinations

Flights from domestic origins to Belfast

Choose which airport to fly into in Belfast

Find deals for your return flight