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>

$282 CHEAP FLIGHTS from Illinois to Belfast

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Cheap Flights from Illinois to Belfast

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

Thu, Apr 16 - Mon, Apr 27

11:25 am - 11:25 pm

ORD

BFS

30h 00m

2 stops

6:40 am - 9:40 am

BFS

ORD

33h 00m

2 stops

$754Multiple Airlines

Fri, May 1 - Fri, May 8

7:15 pm - 8:45 pm

ORD

BFS

19h 30m

3 stops

1:45 pm - 4:10 pm

BFS

ORD

32h 25m

2 stops

$817Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

8:40 pm - 5:35 pm

ORD

BHD

14h 55m

1 stop

10:05 am - 5:35 pm

BHD

ORD

13h 30m

1 stop

$830American Airlines

Tue, Sep 1 - Wed, Sep 9

8:40 pm - 5:35 pm

ORD

BHD

14h 55m

1 stop

11:35 am - 9:21 pm

BHD

ORD

15h 46m

2 stops

$840American Airlines

Tue, Sep 1 - Wed, Sep 9

12:45 pm - 10:45 am

ORD

BHD

16h 00m

2 stops

11:35 am - 11:50 pm

BHD

ORD

18h 15m

2 stops

$847British Airways

Thu, Aug 20 - Mon, Aug 31

7:05 pm - 3:30 pm

ORD

BHD

14h 25m

1 stop

7:35 pm - 3:55 pm

BHD

ORD

26h 20m

1 stop

$856British Airways

Thu, Apr 16 - Mon, Apr 27

9:27 am - 9:20 am

MDW

BHD

17h 53m

2 stops

5:30 pm - 4:26 pm

BHD

MDW

28h 56m

2 stops

$1,044KLM

Mon, Jun 1 - Tue, Jun 9

1:22 pm - 9:20 am

MDW

BHD

13h 58m

2 stops

9:50 am - 9:45 pm

BHD

MDW

17h 55m

2 stops

$1,274KLM

Fri, Jun 5 - Thu, Jun 11

1:22 pm - 4:55 pm

MDW

BHD

21h 33m

2 stops

9:50 am - 9:45 pm

BHD

MDW

17h 55m

2 stops

$2,688Delta

Tue, Jun 23 - Tue, Jun 30

5:25 pm - 4:55 pm

MDW

BHD

17h 30m

2 stops

9:50 am - 9:45 pm

BHD

MDW

17h 55m

2 stops

$4,350Delta

Useful Info

Cheapest flight	$282

Flight from St. Louis to Belfast City 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

Premium Economy Class flights to Belfast

Economy Class flights to Belfast

$282 Find Cheap Flights from Illinois to Belfast

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

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