Cheap flights to Illinois

Popular airlines to Illinois

  • Delta

    Delta

  • Frontier Airlines

    Frontier Airlines

  • American Airlines

    American Airlines

  • Spirit Airlines

    Spirit Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • JetBlue Airways

    JetBlue Airways

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Popular cities in Illinois

Chicago which includes a city and a high-rise building as well as a family
FlightsFlights

Chicago

Chicago

Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at €248 for one-way flights and €349 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, 12 Sep - Tue, 16 Sep
SNN
Shannon
ORD
Chicago
€406 Return, found 13 hours ago
€406
Return
found 13 hours ago
Select Lufthansa flight, departing Fri, 12 Sep from Shannon to Chicago, returning Tue, 16 Sep, priced at €406 found 13 hours ago
Delta
Thu, 11 Sep - Mon, 15 Sep
SNN
Shannon
ORD
Chicago
€418 Return, found 1 hour ago
€418
Return
found 1 hour ago
Select Delta flight, departing Thu, 11 Sep from Shannon to Chicago, returning Mon, 15 Sep, priced at €418 found 1 hour ago
Scandinavian Airlines
Fri, 6 Feb - Fri, 13 Feb
KRK
Kraków
ORD
Chicago
€427 Return, found 20 hours ago
€427
Return
found 20 hours ago
Select Scandinavian Airlines flight, departing Fri, 6 Feb from Kraków to Chicago, returning Fri, 13 Feb, priced at €427 found 20 hours ago
United
Thu, 11 Sep - Mon, 15 Sep
SNN
Shannon
ORD
Chicago
€427 Return, found 1 hour ago
€427
Return
found 1 hour ago
Select United flight, departing Thu, 11 Sep from Shannon to Chicago, returning Mon, 15 Sep, priced at €427 found 1 hour ago
British Airways
Wed, 5 Nov - Tue, 11 Nov
KRK
Kraków
ORD
Chicago
€454 Return, found 1 day ago
€454
Return
found 1 day ago
Select British Airways flight, departing Wed, 5 Nov from Kraków to Chicago, returning Tue, 11 Nov, priced at €454 found 1 day ago
Lufthansa
Fri, 24 Oct - Sun, 9 Nov
KRK
Kraków
ORD
Chicago
€457 Return, found 2 hours ago
€457
Return
found 2 hours ago
Select Lufthansa flight, departing Fri, 24 Oct from Kraków to Chicago, returning Sun, 9 Nov, priced at €457 found 2 hours ago
Swiss International Air Lines
Fri, 6 Feb - Fri, 13 Feb
KRK
Kraków
ORD
Chicago
€464 Return, found 20 hours ago
€464
Return
found 20 hours ago
Select Swiss International Air Lines flight, departing Fri, 6 Feb from Kraków to Chicago, returning Fri, 13 Feb, priced at €464 found 20 hours ago
Air Canada
Fri, 24 Oct - Sun, 9 Nov
KRK
Kraków
ORD
Chicago
€465 Return, found 2 hours ago
€465
Return
found 2 hours ago
Select Air Canada flight, departing Fri, 24 Oct from Kraków to Chicago, returning Sun, 9 Nov, priced at €465 found 2 hours ago
Austrian Airlines
Tue, 23 Dec - Sat, 3 Jan
KRK
Kraków
ORD
Chicago
€473 Return, found 1 day ago
€473
Return
found 1 day ago
Select Austrian Airlines flight, departing Tue, 23 Dec from Kraków to Chicago, returning Sat, 3 Jan, priced at €473 found 1 day ago
LOT-Polish Airlines
Fri, 14 Nov - Mon, 24 Nov
KRK
Kraków
ORD
Chicago
€508 Return, found 5 days ago
€508
Return
found 5 days ago
Select LOT-Polish Airlines flight, departing Fri, 14 Nov from Kraków to Chicago, returning Mon, 24 Nov, priced at €508 found 5 days ago

About Illinois

Expedia offers flights to Illinois to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Illinois or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Illinois that have flexible change policies?
Search for cheap flights to Illinois, then tick the "No change fee" box under the "Flexible change policies" heading. From then on it's smooth sailing. We understand that travel plans change and flexibility is essential, so book with confidence with Expedia.
Which airlines fly to Illinois?
Whether you're travelling somewhere new or rendezvousing at a favourite haunt, these airlines are waiting to take you into or near Illinois:

  • United Airlines - 13,063 flights to or near Illinois each month, including 12,950 flights to O'Hare Intl. Airport (ORD) and 108 flights to Quad City Intl. Airport (MLI) per month.
  • American Airlines - 8,977 flights to or near Illinois each month, including 8,855 flights to O'Hare Intl. Airport (ORD) and 121 flights to Quad City Intl. Airport (MLI) per month.
  • Southwest Airlines - 5,997 flights to or near Illinois each month, including 5,334 flights to Midway Intl. Airport (MDW) and 663 flights to O'Hare Intl. Airport (ORD) per month.

How can I find cheap tickets to Illinois?
One of the easiest ways to find cheap tickets to Illinois is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It'll reveal the cheapest prices for nearby days. The lowest price for a flight to Illinois in the last seven days was €349. Booking well in advance will generally help you score an even bigger bargain.
How much is a flight to Illinois?
There were plenty of bargain fares up for grabs in the last seven days, with the cost of a return airfare to Illinois ranging between €349 and €624. Many lucky travellers nabbed one-way tickets from Kraków (KRK) for as little as €248.
What are the most popular airports to fly into in Illinois?
Touch down at one of these top Illinois airports and you'll be perfectly placed to discover all that this wonderful region has to offer:

  • O'Hare Intl. Airport (ORD) - 25,318 flights per month.
  • Midway Intl. Airport (MDW) - 5,962 flights per month.
  • Quad City Intl. Airport (MLI) - 325 flights per month.

How much is a plane ticket to Illinois?
In the last seven days, plane fares to Illinois ranged from €349 to €624.
What is the best time to go to Illinois?
A terrific time to check out Chicago is after June 20 when the summer season starts. In Illinois's main city, average temperatures range from 18ºC to 24ºC at this time — ideal weather for sightseeing! May, June and August are the most popular months to head to this hot spot.
What months are the cheapest to book a flight to Illinois?
The top month to purchase affordable flights to Illinois is February. Remember that in the U.S, an expensive time to reserve a ticket is during the busy month of December.

Trending flights to Illinois

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Fri, 5 Dec - Mon, 8 Dec
DUB
Dublin
ORD
Chicago
€349 Return, just found
€349
Return
just found
Select Scandinavian Airlines flight, departing Fri, 5 Dec from Dublin to Chicago, returning Mon, 8 Dec, priced at €349 just found
*Available to Expedia members.