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>

$320 CHEAP FLIGHTS from Illinois to Belfast

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

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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

Sun, Sep 14 - Mon, Sep 22

5:40 pm - 11:30 amORD-BHD

11h 50m1 stop

7:30 pm - 3:45 pmBHD-ORD

26h 15m2 stops

$615British Airways

Find Deal

Mon, Aug 25 - Mon, Sep 1

10:35 pm - 3:40 pmORD-BHD

11h 05m1 stop

7:30 pm - 3:45 pmBHD-ORD

26h 15m2 stops

$616British Airways

Find Deal

Sun, Sep 14 - Mon, Sep 22

5:40 pm - 1:05 pmORD-BHD

13h 25m1 stop

7:30 pm - 11:50 amBHD-ORD

22h 20m1 stop

$625British Airways

Find Deal

Mon, Aug 25 - Mon, Sep 1

10:35 pm - 5:30 pmORD-BHD

12h 55m1 stop

6:30 pm - 11:55 amBHD-ORD

23h 25m1 stop

$627British Airways

Find Deal

Sun, Sep 14 - Sun, Sep 21

10:15 pm - 10:25 pmORD-BFS

18h 10m2 stops

7:00 am - 6:15 pmBFS-ORD

41h 15m2 stops

$641

Find Deal

Mon, Sep 15 - Sat, Sep 20

7:25 pm - 8:35 pmORD-BFS

19h 10m2 stops

8:55 am - 6:15 pmBFS-ORD

39h 20m2 stops

$683

Find Deal

Wed, Nov 5 - Tue, Nov 11

3:45 pm - 9:00 pmORD-BHD

23h 15m2 stops

5:20 pm - 2:20 pmBHD-ORD

27h 00m1 stop

$711Delta

Find Deal

Wed, Nov 5 - Tue, Nov 11

10:25 am - 9:00 pmORD-BHD

28h 35m2 stops

5:20 pm - 4:34 pmBHD-ORD

29h 14m2 stops

$721Delta

Find Deal

Sat, Nov 1 - Sat, Nov 8

6:35 pm - 4:50 pmMDW-BHD

17h 15m2 stops

6:30 am - 5:43 pmBHD-MDW

17h 13m2 stops

$1,191KLM

Find Deal

Wed, Oct 22 - Tue, Nov 4

7:10 pm - 4:55 pmMDW-BHD

15h 45m2 stops

6:30 am - 5:43 pmBHD-MDW

17h 13m2 stops

$1,500KLM

Find Deal

Useful Info

Cheapest flight	$320

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

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$320 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