Cheap flights to Illinois

View €265 flight on Tue, 12 Jan 2027Opens in a new window

Popular airlines to Illinois

  • Delta

  • Frontier Airlines

  • American Airlines

  • United

  • 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 €265 for one-way flights and €383 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Mon, 23 Nov - Sun, 29 Nov
DUB
Dublin
ORD
Chicago
€383 Return, found 6 days ago
€383
Return
found 6 days ago
Select Scandinavian Airlines flight, departing Mon, 23 Nov from Dublin to Chicago, returning Sun, 29 Nov, priced at €383 found 6 days ago
JetBlue Airways
Fri, 8 May - Sat, 30 May
DUB
Dublin
ORD
Chicago
€406 Return, found 3 hours ago
€406
Return
found 3 hours ago
Select JetBlue Airways flight, departing Fri, 8 May from Dublin to Chicago, returning Sat, 30 May, priced at €406 found 3 hours ago
British Airways
Tue, 26 Jan - Sun, 31 Jan
DUB
Dublin
ORD
Chicago
€445 Return, found 1 day ago
€445
Return
found 1 day ago
Select British Airways flight, departing Tue, 26 Jan from Dublin to Chicago, returning Sun, 31 Jan, priced at €445 found 1 day ago
Icelandair
Mon, 11 Jan - Fri, 15 Jan
DUB
Dublin
ORD
Chicago
€448 Return, found 3 hours ago
€448
Return
found 3 hours ago
Select Icelandair flight, departing Mon, 11 Jan from Dublin to Chicago, returning Fri, 15 Jan, priced at €448 found 3 hours ago
Aer Lingus
Mon, 23 Nov - Sun, 29 Nov
DUB
Dublin
ORD
Chicago
€455 Return, found 6 days ago
€455
Return
found 6 days ago
Select Aer Lingus flight, departing Mon, 23 Nov from Dublin to Chicago, returning Sun, 29 Nov, priced at €455 found 6 days ago
American Airlines
Tue, 12 Jan - Sun, 17 Jan
DUB
Dublin
ORD
Chicago
€461 Return, found 6 days ago
€461
Return
found 6 days ago
Select American Airlines flight, departing Tue, 12 Jan from Dublin to Chicago, returning Sun, 17 Jan, priced at €461 found 6 days ago
TAP Portugal
Tue, 24 Nov - Sun, 29 Nov
DUB
Dublin
ORD
Chicago
€512 Return, found 9 hours ago
€512
Return
found 9 hours ago
Select TAP Portugal flight, departing Tue, 24 Nov from Dublin to Chicago, returning Sun, 29 Nov, priced at €512 found 9 hours ago
Air France
Tue, 31 Mar - Tue, 14 Apr
DUB
Dublin
ORD
Chicago
€536 Return, found 5 days ago
€536
Return
found 5 days ago
Select Air France flight, departing Tue, 31 Mar from Dublin to Chicago, returning Tue, 14 Apr, priced at €536 found 5 days ago
Delta
Wed, 25 Nov - Wed, 2 Dec
DUB
Dublin
ORD
Chicago
€536 Return, found 4 days ago
€536
Return
found 4 days ago
Select Delta flight, departing Wed, 25 Nov from Dublin to Chicago, returning Wed, 2 Dec, priced at €536 found 4 days ago
KLM
Wed, 18 Mar - Mon, 23 Mar
DUB
Dublin
ORD
Chicago
€548 Return, found 2 days ago
€548
Return
found 2 days ago
Select KLM flight, departing Wed, 18 Mar from Dublin to Chicago, returning Mon, 23 Mar, priced at €548 found 2 days ago

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
Mon, 23 Nov - Sun, 29 Nov
DUB
Dublin
ORD
Chicago
€383 Return, found 6 days ago
€383
Return
found 6 days ago
Select Scandinavian Airlines flight, departing Mon, 23 Nov from Dublin to Chicago, returning Sun, 29 Nov, priced at €383 found 6 days ago

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 €383. 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 €383 and €548. Many lucky travellers nabbed one-way tickets from Dublin (DUB) for as little as €265.
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 €383 to €548.
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.

Book with confidence

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.
About Illinois

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