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

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 Donegal. 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 Donegal?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Donegal 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 Donegal?

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 Donegal 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 Donegal?

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 Donegal 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>

€578 CHEAP FLIGHTS from Illinois to Donegal

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

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Flights Deals

Cheap Flights from Illinois to Donegal

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Illinois to Donegal 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 Donegal

Sun, 27 Jul - Sun, 3 Aug

18:00 - 14:00ORD-CFN

38h 00m2 stops

10:00 - 14:00CFN-ORD

34h 00m1 stop

€915

Find Deal

Sun, 27 Jul - Sun, 3 Aug

20:15 - 20:00ORD-CFN

17h 45m1 stop

13:20 - 13:35CFN-ORD

30h 15m1 stop

€976

Find Deal

Sun, 27 Jul - Sun, 3 Aug

16:55 - 14:00ORD-CFN

15h 05m2 stops

13:20 - 11:55CFN-ORD

28h 35m2 stops

€1,020British Airways

Find Deal

Useful Info

Cheapest flight	€578

Flight from Chicago to Donegal

How does KAYAK find such low prices on flights from Illinois to Donegal?
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 Donegal.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Donegal?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Donegal 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 Donegal?
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 Donegal 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 Donegal?
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 Donegal from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Direct departures

Illinois to Donegal

Monday

Aer Lingus, British Airways, Qatar Airways

Aer Lingus, British Airways, +1 more

Tuesday

Aer Lingus, British Airways, Qatar Airways

Aer Lingus, British Airways, +1 more

Wednesday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

Thursday

Aer Lingus, British Airways, Qatar Airways

Aer Lingus, British Airways, +1 more

Friday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

Saturday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

Sunday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

See more direct flights

Direct returns

Donegal to Illinois

Monday

Aer Lingus, British Airways, Qatar Airways

Aer Lingus, British Airways, +1 more

Tuesday

Aer Lingus, British Airways, Qatar Airways

Aer Lingus, British Airways, +1 more

Wednesday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

Thursday

Aer Lingus, British Airways, Qatar Airways

Aer Lingus, British Airways, +1 more

Friday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

Saturday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

Sunday

Aer Lingus, British Airways, Loganair, +1 more

Aer Lingus, British Airways, +2 more

See more direct flights

Letterkenny

Bundoran

Downings

Killybegs

Milford

Everything you need to know for your flight to Donegal

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

Information on the airport you'll fly into in Donegal

Donegal (CFN)

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

€578 Find Cheap Flights from Illinois to Donegal

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

Cheap Flights from Illinois to Donegal

Recent return flight deals from Illinois to Donegal

Recent one-way flight deals from Illinois to Donegal

Good to know

FAQs for booking flights from Illinois to Donegal

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

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 Donegal.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Donegal 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 Donegal?

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 Donegal 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 Donegal?

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 Donegal from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Illinois to Donegal?

Travelling to a place near Donegal?

Everything you need to know for your flight to Donegal

Information on the airport you'll fly into in Donegal

Cabin class types available on flights to Illinois

Complete your trip to Donegal with a hotel stay or car hire

Flights to other popular destinations

Flights from domestic origins to Donegal

Choose which airport to fly into in Donegal