Illinois Flights - Book Cheap Flights to Illinois

Popular airlines to Illinois

  • Delta

    Delta

  • Spirit Airlines

    Spirit Airlines

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • JetBlue Airways

    JetBlue Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Popular cities in Illinois

Chicago showing a skyscraper and a city as well as a family
FlightsFlights

Chicago

Chicago
Rockford featuring a city and general coastal views
FlightsFlights

Rockford

Rockford

Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at RM2,071 for one-way flights and RM2,570 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 11 Sep - Wed, 24 Sep
ICN
Seoul
ORD
Chicago
RM2,570 Return, found 2 days ago
RM2,570
Return
found 2 days ago
Select United flight, departing Thu, 11 Sep from Seoul to Chicago, returning Wed, 24 Sep, priced at RM2,570 found 2 days ago
American Airlines
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM2,614 Return, found 1 day ago
RM2,614
Return
found 1 day ago
Select American Airlines flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM2,614 found 1 day ago
Iberia
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM2,720 Return, found 1 day ago
RM2,720
Return
found 1 day ago
Select Iberia flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM2,720 found 1 day ago
British Airways
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM2,761 Return, found 1 day ago
RM2,761
Return
found 1 day ago
Select British Airways flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM2,761 found 1 day ago
Finnair
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM2,762 Return, found 1 day ago
RM2,762
Return
found 1 day ago
Select Finnair flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM2,762 found 1 day ago
KLM
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM2,852 Return, found 1 day ago
RM2,852
Return
found 1 day ago
Select KLM flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM2,852 found 1 day ago
Air Canada
Sun, 30 Nov - Thu, 4 Dec
LHR
London
ORD
Chicago
RM2,896 Return, found 22 hours ago
RM2,896
Return
found 22 hours ago
Select Air Canada flight, departing Sun, 30 Nov from London to Chicago, returning Thu, 4 Dec, priced at RM2,896 found 22 hours ago
Delta
Sun, 30 Nov - Thu, 4 Dec
LHR
London
ORD
Chicago
RM2,984 Return, found 22 hours ago
RM2,984
Return
found 22 hours ago
Select Delta flight, departing Sun, 30 Nov from London to Chicago, returning Thu, 4 Dec, priced at RM2,984 found 22 hours ago
Air France
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM3,015 Return, found 1 day ago
RM3,015
Return
found 1 day ago
Select Air France flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM3,015 found 1 day ago
Austrian Airlines
Sun, 24 Aug - Tue, 9 Sep
LHR
London
ORD
Chicago
RM3,020 Return, found 1 day ago
RM3,020
Return
found 1 day ago
Select Austrian Airlines flight, departing Sun, 24 Aug from London to Chicago, returning Tue, 9 Sep, priced at RM3,020 found 1 day ago

About Illinois

Expedia offers flights to Illinois to meet every traveler'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 RM2,570. 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 RM2,570 and RM4,037. Many lucky travellers nabbed one-way tickets from Seoul (ICN) for as little as RM2,071.
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 RM2,570 to RM4,037.
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.

Cathay Pacific
Wed, 12 Nov - Wed, 10 Dec
KUL
Kuala Lumpur
ORD
Chicago
RM3,918 Return, found 2 days ago
RM3,918
Return
found 2 days ago
Select Cathay Pacific flight, departing Wed, 12 Nov from Kuala Lumpur to Chicago, returning Wed, 10 Dec, priced at RM3,918 found 2 days ago
*Available to Expedia members.