Cheap flights to Illinois

Popular airlines to Illinois

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Spirit Airlines

    Spirit Airlines

  • 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 €249 for one-way flights and €349 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sat, 6 Dec - Sun, 14 Dec
DUB
Dublin
ORD
Chicago
€349 Return, just found
€349
Return
just found
Select Icelandair flight, departing Sat, 6 Dec from Dublin to Chicago, returning Sun, 14 Dec, priced at €349 just found
TAP Portugal
Fri, 7 Nov - Fri, 14 Nov
DUB
Dublin
ORD
Chicago
€360 Return, found 6 days ago
€360
Return
found 6 days ago
Select TAP Portugal flight, departing Fri, 7 Nov from Dublin to Chicago, returning Fri, 14 Nov, priced at €360 found 6 days ago
Scandinavian Airlines
Sat, 1 Nov - Mon, 3 Nov
DUB
Dublin
ORD
Chicago
€379 Return, found 2 hours ago
€379
Return
found 2 hours ago
Select Scandinavian Airlines flight, departing Sat, 1 Nov from Dublin to Chicago, returning Mon, 3 Nov, priced at €379 found 2 hours ago
Lufthansa
Wed, 22 Oct - Tue, 28 Oct
DUB
Dublin
ORD
Chicago
€382 Return, found 1 day ago
€382
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 22 Oct from Dublin to Chicago, returning Tue, 28 Oct, priced at €382 found 1 day ago
American Airlines
Fri, 31 Oct - Thu, 6 Nov
DUB
Dublin
ORD
Chicago
€386 Return, found 1 hour ago
€386
Return
found 1 hour ago
Select American Airlines flight, departing Fri, 31 Oct from Dublin to Chicago, returning Thu, 6 Nov, priced at €386 found 1 hour ago
British Airways
Sat, 6 Dec - Sun, 14 Dec
DUB
Dublin
ORD
Chicago
€388 Return, just found
€388
Return
just found
Select British Airways flight, departing Sat, 6 Dec from Dublin to Chicago, returning Sun, 14 Dec, priced at €388 just found
Aer Lingus
Thu, 6 Nov - Wed, 12 Nov
DUB
Dublin
ORD
Chicago
€394 Return, found 5 days ago
€394
Return
found 5 days ago
Select Aer Lingus flight, departing Thu, 6 Nov from Dublin to Chicago, returning Wed, 12 Nov, priced at €394 found 5 days ago
KLM
Wed, 12 Nov - Sat, 29 Nov
DUB
Dublin
ORD
Chicago
€396 Return, found 3 days ago
€396
Return
found 3 days ago
Select KLM flight, departing Wed, 12 Nov from Dublin to Chicago, returning Sat, 29 Nov, priced at €396 found 3 days ago
Air Canada
Sun, 21 Sep - Mon, 6 Oct
DUB
Dublin
ORD
Chicago
€397 Return, found 14 hours ago
€397
Return
found 14 hours ago
Select Air Canada flight, departing Sun, 21 Sep from Dublin to Chicago, returning Mon, 6 Oct, priced at €397 found 14 hours ago
Swiss International Air Lines
Thu, 30 Oct - Sun, 2 Nov
DUB
Dublin
ORD
Chicago
€398 Return, just found
€398
Return
just found
Select Swiss International Air Lines flight, departing Thu, 30 Oct from Dublin to Chicago, returning Sun, 2 Nov, priced at €398 just found

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 €539. Many lucky travellers nabbed one-way tickets from Dublin (DUB) for as little as €249.
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 €539.
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.

Icelandair
Sat, 6 Dec - Sun, 14 Dec
DUB
Dublin
ORD
Chicago
€349 Return, just found
€349
Return
just found
Select Icelandair flight, departing Sat, 6 Dec from Dublin to Chicago, returning Sun, 14 Dec, priced at €349 just found
*Available to Expedia members.