Cheap flights to Illinois

View €263 flight on Mon, 30 Nov 2026Opens in a new window

Popular airlines to Illinois

  • Delta

  • American Airlines

  • United

  • Frontier Airlines

  • Southwest Airlines

  • Spirit Airlines

  • Alaska Airlines

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Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at €263 for one-way flights and €368 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sat, 14 Feb - Mon, 16 Feb
DUB
Dublin
ORD
Chicago
€368 Return, found 2 days ago
€368
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Sat, 14 Feb from Dublin to Chicago, returning Mon, 16 Feb, priced at €368 found 2 days ago
TAP Portugal
Tue, 3 Feb - Wed, 11 Feb
DUB
Dublin
ORD
Chicago
€399 Return, found 5 days ago
€399
Return
found 5 days ago
Select TAP Portugal flight, departing Tue, 3 Feb from Dublin to Chicago, returning Wed, 11 Feb, priced at €399 found 5 days ago
American Airlines
Fri, 6 Feb - Sun, 15 Feb
DUB
Dublin
ORD
Chicago
€438 Return, found 1 day ago
€438
Return
found 1 day ago
Select American Airlines flight, departing Fri, 6 Feb from Dublin to Chicago, returning Sun, 15 Feb, priced at €438 found 1 day ago
British Airways
Mon, 9 Nov - Tue, 24 Nov
DUB
Dublin
ORD
Chicago
€442 Return, found 3 days ago
€442
Return
found 3 days ago
Select British Airways flight, departing Mon, 9 Nov from Dublin to Chicago, returning Tue, 24 Nov, priced at €442 found 3 days ago
Iberia
Thu, 26 Feb - Tue, 3 Mar
DUB
Dublin
ORD
Chicago
€446 Return, found 1 day ago
€446
Return
found 1 day ago
Select Iberia flight, departing Thu, 26 Feb from Dublin to Chicago, returning Tue, 3 Mar, priced at €446 found 1 day ago
Aer Lingus
Sun, 8 Feb - Tue, 17 Feb
DUB
Dublin
ORD
Chicago
€455 Return, just found
€455
Return
just found
Select Aer Lingus flight, departing Sun, 8 Feb from Dublin to Chicago, returning Tue, 17 Feb, priced at €455 just found
KLM
Fri, 6 Mar - Sun, 8 Mar
DUB
Dublin
MDW
Chicago
€466 Return, found 5 days ago
€466
Return
found 5 days ago
Select KLM flight, departing Fri, 6 Mar from Dublin to Chicago, returning Sun, 8 Mar, priced at €466 found 5 days ago
Icelandair
Wed, 4 Feb - Wed, 11 Feb
DUB
Dublin
ORD
Chicago
€468 Return, found 1 day ago
€468
Return
found 1 day ago
Select Icelandair flight, departing Wed, 4 Feb from Dublin to Chicago, returning Wed, 11 Feb, priced at €468 found 1 day ago
Air France
Thu, 12 Feb - Mon, 16 Feb
DUB
Dublin
ORD
Chicago
€476 Return, found 15 hours ago
€476
Return
found 15 hours ago
Select Air France flight, departing Thu, 12 Feb from Dublin to Chicago, returning Mon, 16 Feb, priced at €476 found 15 hours ago
JetBlue Airways
Sat, 9 May - Sat, 16 May
DUB
Dublin
ORD
Chicago
€509 Return, found 3 hours ago
€509
Return
found 3 hours ago
Select JetBlue Airways flight, departing Sat, 9 May from Dublin to Chicago, returning Sat, 16 May, priced at €509 found 3 hours 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 €368. 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 €368 and €509. Many lucky travellers nabbed one-way tickets from Dublin (DUB) for as little as €263.
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 €368 to €509.
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
Sat, 14 Feb - Mon, 16 Feb
DUB
Dublin
ORD
Chicago
€368 Return, found 2 days ago
€368
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Sat, 14 Feb from Dublin to Chicago, returning Mon, 16 Feb, priced at €368 found 2 days ago
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