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 return 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>

£177 CHEAP FLIGHTS from Illinois to Belfast

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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 return 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

Recent return flight deals from Illinois to Belfast

Tue, 25 Nov - Thu, 4 Dec

18:25 - 14:50ORD-BHD

14h 25m1 stop

06:35 - 17:00BHD-ORD

16h 25m1 stop

£480American Airlines

Find Deal

Tue, 25 Nov - Thu, 4 Dec

18:25 - 11:30ORD-BHD

11h 05m1 stop

06:35 - 17:39BHD-ORD

17h 04m2 stops

£488American Airlines

Find Deal

Mon, 1 Dec - Sun, 7 Dec

14:36 - 16:50STL-BHD

20h 14m2 stops

06:30 - 17:56BHD-STL

17h 26m2 stops

£493Multiple Airlines

Find Deal

Sun, 12 Apr - Wed, 22 Apr

19:15 - 13:05ORD-BHD

11h 50m1 stop

11:30 - 18:15BHD-ORD

12h 45m1 stop

£496British Airways

Find Deal

Fri, 12 Dec - Thu, 18 Dec

14:42 - 10:30ORD-BHD

13h 48m2 stops

06:35 - 13:50BHD-ORD

13h 15m1 stop

£499Multiple Airlines

Find Deal

Tue, 25 Nov - Thu, 4 Dec

18:15 - 16:50ORD-BHD

16h 35m2 stops

06:30 - 17:46BHD-ORD

17h 16m2 stops

£508KLM

Find Deal

Wed, 3 Dec - Sun, 7 Dec

16:25 - 16:50ORD-BHD

18h 25m1 stop

06:30 - 14:20BHD-ORD

13h 50m1 stop

£512Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

07:10 - 16:50ORD-BHD

27h 40m2 stops

17:20 - 14:20BHD-ORD

27h 00m1 stop

£515Virgin Atlantic

Find Deal

Wed, 18 Mar - Sun, 22 Mar

18:10 - 10:15ORD-BHD

11h 05m1 stop

15:10 - 14:50BHD-ORD

28h 40m1 stop

£534British Airways

Find Deal

Fri, 3 Apr - Tue, 7 Apr

18:10 - 16:55ORD-BHD

16h 45m2 stops

06:30 - 14:20BHD-ORD

13h 50m1 stop

£604KLM

Find Deal

Cheapest return fare

£480

American Airlines

Tue 25/11Thu 4/12

ORD - BHD • 1 stop

Cheapest one-way flight

£177

Multiple Airlines

Sun 18/1

MDW - BFS • 2 stops

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Belfast!

Useful Info

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 return 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 hires and package deals with KAYAK.

£177 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 return flight deals from Illinois to Belfast

Recent one-way flight deals from Illinois to Belfast

Everything you should 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 return 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 hire

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