Illinois Flights - Book Cheap Flights to Illinois

View RM2,361 flight on Mon, 2 Feb 2026Opens in a new window

Popular airlines to Illinois

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

  • JetBlue Airways

    JetBlue Airways

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Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at RM2,361 for one-way flights and RM3,814 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 2 Feb - Sun, 15 Feb
SIN
Singapore
ORD
Chicago
RM3,814 Return, found 6 hours ago
RM3,814
Return
found 6 hours ago
Select United flight, departing Mon, 2 Feb from Singapore to Chicago, returning Sun, 15 Feb, priced at RM3,814 found 6 hours ago
Korean Air
Mon, 2 Feb - Sun, 15 Feb
SIN
Singapore
ORD
Chicago
RM3,901 Return, found 6 hours ago
RM3,901
Return
found 6 hours ago
Select Korean Air flight, departing Mon, 2 Feb from Singapore to Chicago, returning Sun, 15 Feb, priced at RM3,901 found 6 hours ago
Delta
Fri, 6 Feb - Sun, 22 Feb
SIN
Singapore
ORD
Chicago
RM3,916 Return, found 2 days ago
RM3,916
Return
found 2 days ago
Select Delta flight, departing Fri, 6 Feb from Singapore to Chicago, returning Sun, 22 Feb, priced at RM3,916 found 2 days ago
Japan Airlines
Mon, 2 Feb - Sun, 15 Feb
SIN
Singapore
ORD
Chicago
RM3,933 Return, found 6 hours ago
RM3,933
Return
found 6 hours ago
Select Japan Airlines flight, departing Mon, 2 Feb from Singapore to Chicago, returning Sun, 15 Feb, priced at RM3,933 found 6 hours ago
Turkish Airlines
Wed, 14 Oct - Wed, 21 Oct
KUL
Kuala Lumpur
ORD
Chicago
RM3,992 Return, found 6 days ago
RM3,992
Return
found 6 days ago
Select Turkish Airlines flight, departing Wed, 14 Oct from Kuala Lumpur to Chicago, returning Wed, 21 Oct, priced at RM3,992 found 6 days ago
Etihad Airways
Thu, 19 Feb - Wed, 4 Mar
KUL
Kuala Lumpur
ORD
Chicago
RM4,115 Return, found 7 hours ago
RM4,115
Return
found 7 hours ago
Select Etihad Airways flight, departing Thu, 19 Feb from Kuala Lumpur to Chicago, returning Wed, 4 Mar, priced at RM4,115 found 7 hours ago
American Airlines
Tue, 13 Jan - Sat, 31 Jan
SIN
Singapore
ORD
Chicago
RM4,268 Return, found 15 hours ago
RM4,268
Return
found 15 hours ago
Select American Airlines flight, departing Tue, 13 Jan from Singapore to Chicago, returning Sat, 31 Jan, priced at RM4,268 found 15 hours ago
Malaysia Airlines
Wed, 30 Sept - Mon, 5 Oct
KUL
Kuala Lumpur
ORD
Chicago
RM4,310 Return, found 1 day ago
RM4,310
Return
found 1 day ago
Select Malaysia Airlines flight, departing Wed, 30 Sept from Kuala Lumpur to Chicago, returning Mon, 5 Oct, priced at RM4,310 found 1 day ago
Cathay Pacific
Mon, 2 Feb - Sun, 15 Feb
SIN
Singapore
ORD
Chicago
RM4,331 Return, found 6 hours ago
RM4,331
Return
found 6 hours ago
Select Cathay Pacific flight, departing Mon, 2 Feb from Singapore to Chicago, returning Sun, 15 Feb, priced at RM4,331 found 6 hours ago
All Nippon Airways
Mon, 2 Feb - Sun, 15 Feb
SIN
Singapore
ORD
Chicago
RM4,455 Return, found 6 hours ago
RM4,455
Return
found 6 hours ago
Select All Nippon Airways flight, departing Mon, 2 Feb from Singapore to Chicago, returning Sun, 15 Feb, priced at RM4,455 found 6 hours 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 RM3,814. 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 RM3,814 and RM4,455. Many lucky travellers nabbed one-way tickets from Singapore (SIN) for as little as RM2,361.
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 RM3,814 to RM4,455.
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.

Turkish Airlines
Wed, 14 Oct - Wed, 21 Oct
KUL
Kuala Lumpur
ORD
Chicago
RM3,992 Return, found 6 days ago
RM3,992
Return
found 6 days ago
Select Turkish Airlines flight, departing Wed, 14 Oct from Kuala Lumpur to Chicago, returning Wed, 21 Oct, priced at RM3,992 found 6 days ago
*Available to Expedia members.