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>

$346 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

$652

British Airways

Mon 3/9Mon 3/16

ORD - BHD • 1 stop

Cheapest one-way

$346

Aer Lingus

Mon 4/13

ORD - BHD • 2 stops

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Flight Deals

Cheap Flights from Illinois to Belfast

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

Round-trip

One-way

Recent round-trip flight deals from Illinois to Belfast

Mon, Mar 9 - Mon, Mar 16

6:10 pm - 10:40 am

ORD

BHD

11h 30m

1 stop

7:25 pm - 2:50 pm

BHD

ORD

24h 25m

1 stop

$652British Airways

Mon, Mar 9 - Mon, Mar 16

6:10 pm - 10:40 am

ORD

BHD

11h 30m

1 stop

7:25 pm - 6:00 pm

BHD

ORD

27h 35m

2 stops

$675British Airways

Mon, Mar 9 - Mon, Mar 16

9:48 am - 2:15 pm

ORD

BHD

23h 27m

2 stops

7:25 pm - 6:00 pm

BHD

ORD

27h 35m

2 stops

$676British Airways

Fri, Feb 20 - Fri, Feb 27

6:30 pm - 2:15 pm

ORD

BHD

13h 45m

1 stop

8:45 am - 5:00 pm

BHD

ORD

14h 15m

1 stop

$709American Airlines

Fri, Feb 20 - Fri, Feb 27

1:39 pm - 10:30 am

ORD

BHD

14h 51m

2 stops

8:45 am - 5:00 pm

BHD

ORD

14h 15m

1 stop

$714American Airlines

Sun, Mar 8 - Mon, Mar 16

5:25 pm - 9:00 pm

ORD

BHD

22h 35m

1 stop

6:30 am - 3:20 pm

BHD

ORD

13h 50m

1 stop

$724KLM

Mon, Mar 9 - Sun, Mar 15

5:40 pm - 4:45 pm

ORD

BHD

18h 05m

2 stops

5:20 pm - 3:20 pm

BHD

ORD

27h 00m

1 stop

$728KLM

Fri, Feb 20 - Fri, Feb 27

1:26 pm - 4:50 pm

MDW

BHD

21h 24m

2 stops

6:30 am - 6:40 pm

BHD

MDW

18h 10m

2 stops

$747Delta

Fri, Feb 27 - Fri, Mar 6

4:05 pm - 3:10 pm

ORD

BFS

17h 05m

2 stops

6:30 am - 11:22 am

BFS

ORD

34h 52m

3 stops

$796Multiple Airlines

Wed, Mar 18 - Wed, Mar 25

10:55 am - 3:35 pm

ORD

BFS

23h 40m

3 stops

7:55 am - 9:00 pm

BFS

ORD

42h 05m

3 stops

$837Multiple Airlines

Useful Info

Cheapest flight	$346

Flight from Chicago O'Hare Airport 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

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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

$346 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

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