Flight to Illinois

View S$747 flight on Mon, 6 Apr, 2026Opens in a new window

Popular airlines to Illinois

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Frontier Airlines

    Frontier Airlines

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

  • Alaska Airlines

    Alaska Airlines

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Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at S$747 for one-way flights and S$1,177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, 9 Feb - Thu, 19 Feb
SIN
Singapore
ORD
Chicago
S$1,177 Return, found 5 days ago
S$1,177
Return
found 5 days ago
Select Air Canada flight, departing Mon, 9 Feb from Singapore to Chicago, returning Thu, 19 Feb, priced at S$1,177 found 5 days ago
United
Thu, 30 Apr - Thu, 30 Apr
SIN
Singapore
ORD
Chicago
S$1,200 Return, found 3 days ago
S$1,200
Return
found 3 days ago
Select United flight, departing Thu, 30 Apr from Singapore to Chicago, returning Thu, 30 Apr, priced at S$1,200 found 3 days ago
Korean Air
Thu, 12 Mar - Mon, 23 Mar
SIN
Singapore
ORD
Chicago
S$1,235 Return, found 7 hours ago
S$1,235
Return
found 7 hours ago
Select Korean Air flight, departing Thu, 12 Mar from Singapore to Chicago, returning Mon, 23 Mar, priced at S$1,235 found 7 hours ago
Delta
Thu, 19 Mar - Tue, 31 Mar
SIN
Singapore
MDW
Chicago
S$1,237 Return, found 2 days ago
S$1,237
Return
found 2 days ago
Select Delta flight, departing Thu, 19 Mar from Singapore to Chicago, returning Tue, 31 Mar, priced at S$1,237 found 2 days ago
Japan Airlines
Wed, 28 Jan - Sun, 1 Feb
SIN
Singapore
ORD
Chicago
S$1,244 Return, found 2 hours ago
S$1,244
Return
found 2 hours ago
Select Japan Airlines flight, departing Wed, 28 Jan from Singapore to Chicago, returning Sun, 1 Feb, priced at S$1,244 found 2 hours ago
EVA Airways
Thu, 9 Apr - Thu, 16 Apr
CGK
Jakarta
ORD
Chicago
S$1,279 Return, found 3 days ago
S$1,279
Return
found 3 days ago
Select EVA Airways flight, departing Thu, 9 Apr from Jakarta to Chicago, returning Thu, 16 Apr, priced at S$1,279 found 3 days ago
Air Canada
Thu, 29 Jan - Wed, 4 Feb
SIN
Singapore
STL
St. Louis
S$1,287 Return, found 6 days ago
S$1,287
Return
found 6 days ago
Select Air Canada flight, departing Thu, 29 Jan from Singapore to St. Louis, returning Wed, 4 Feb, priced at S$1,287 found 6 days ago
American Airlines
Wed, 28 Jan - Sun, 1 Feb
SIN
Singapore
ORD
Chicago
S$1,345 Return, found 2 hours ago
S$1,345
Return
found 2 hours ago
Select American Airlines flight, departing Wed, 28 Jan from Singapore to Chicago, returning Sun, 1 Feb, priced at S$1,345 found 2 hours ago
Air India
Thu, 26 Feb - Fri, 6 Mar
SIN
Singapore
ORD
Chicago
S$1,379 Return, found 2 days ago
S$1,379
Return
found 2 days ago
Select Air India flight, departing Thu, 26 Feb from Singapore to Chicago, returning Fri, 6 Mar, priced at S$1,379 found 2 days ago
All Nippon Airways
Sun, 19 Apr - Thu, 23 Apr
SIN
Singapore
ORD
Chicago
S$1,406 Return, found 18 hours ago
S$1,406
Return
found 18 hours ago
Select All Nippon Airways flight, departing Sun, 19 Apr from Singapore to Chicago, returning Thu, 23 Apr, priced at S$1,406 found 18 hours ago
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.

Illinois Flights Information

Airlines serving
United, Japan Airlines, China Airlines, EVA Airways, American Airlines, Korean Air, Delta, Air India, All Nippon Airways, Air Canada
Roundtrip price
from S$1,177

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 S$1,177. 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 S$1,177 and S$1,406. Many lucky travellers nabbed one-way tickets from Singapore (SIN) for as little as S$747.
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.

When is the cheapest time to fly to Illinois?
Take off for Illinois early in the week and you'll usually be rewarded more economical fares. Tuesday is typically the cheapest day to hop on a plane, followed by Monday. If you're hoping to avoid the most expensive flights, steer clear of Saturdays.
How much is a plane ticket to Illinois?
In the last seven days, plane fares to Illinois ranged from S$1,177 to S$1,406.
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.

Air Canada
Mon, 9 Feb - Thu, 19 Feb
SIN
Singapore
ORD
Chicago
S$1,177 Return, found 5 days ago
S$1,177
Return
found 5 days ago
Select Air Canada flight, departing Mon, 9 Feb from Singapore to Chicago, returning Thu, 19 Feb, priced at S$1,177 found 5 days ago
*Available to Expedia members.