Flight to Illinois

View S$218 flight on Thu, 18 Jun, 2026Opens in a new window

Popular airlines to Illinois

  • Delta

  • Frontier Airlines

  • American Airlines

  • United

  • Alaska Airlines

  • JetBlue Airways

  • Southwest Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at S$218 for one-way flights and S$482 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Fri, 25 Sept - Mon, 5 Oct
YXX
Abbotsford
ORD
Chicago
S$482 Return, found 6 days ago
S$482
Return
found 6 days ago
Select WestJet flight, departing Fri, 25 Sept from Abbotsford to Chicago, returning Mon, 5 Oct, priced at S$482 found 6 days ago
WestJet
Sun, 27 Sept - Sun, 11 Oct
YVR
Vancouver
ORD
Chicago
S$506 Return, found 6 days ago
S$506
Return
found 6 days ago
Select WestJet flight, departing Sun, 27 Sept from Vancouver to Chicago, returning Sun, 11 Oct, priced at S$506 found 6 days ago
United
Wed, 8 Jul - Thu, 30 Jul
YVR
Vancouver
ORD
Chicago
S$541 Return, found 6 days ago
S$541
Return
found 6 days ago
Select United flight, departing Wed, 8 Jul from Vancouver to Chicago, returning Thu, 30 Jul, priced at S$541 found 6 days ago
United
Tue, 21 Jul - Tue, 11 Aug
YVR
Vancouver
ORD
Chicago
S$548 Return, found 6 days ago
S$548
Return
found 6 days ago
Select United flight, departing Tue, 21 Jul from Vancouver to Chicago, returning Tue, 11 Aug, priced at S$548 found 6 days ago
Air Canada
Wed, 22 Jul - Sun, 2 Aug
YVR
Vancouver
ORD
Chicago
S$551 Return, found 6 days ago
S$551
Return
found 6 days ago
Select Air Canada flight, departing Wed, 22 Jul from Vancouver to Chicago, returning Sun, 2 Aug, priced at S$551 found 6 days ago
Delta
Sun, 27 Sept - Sat, 17 Oct
YVR
Vancouver
ORD
Chicago
S$585 Return, found 6 days ago
S$585
Return
found 6 days ago
Select Delta flight, departing Sun, 27 Sept from Vancouver to Chicago, returning Sat, 17 Oct, priced at S$585 found 6 days ago
United
Thu, 18 Jun - Sat, 27 Jun
YVR
Vancouver
STL
St. Louis
S$586 Return, found 6 days ago
S$586
Return
found 6 days ago
Select United flight, departing Thu, 18 Jun from Vancouver to St. Louis, returning Sat, 27 Jun, priced at S$586 found 6 days ago
American Airlines
Wed, 22 Jul - Sun, 9 Aug
YVR
Vancouver
ORD
Chicago
S$619 Return, found 6 days ago
S$619
Return
found 6 days ago
Select American Airlines flight, departing Wed, 22 Jul from Vancouver to Chicago, returning Sun, 9 Aug, priced at S$619 found 6 days ago
Alaska Airlines
Thu, 30 Jul - Sat, 15 Aug
YVR
Vancouver
ORD
Chicago
S$626 Return, found 6 days ago
S$626
Return
found 6 days ago
Select Alaska Airlines flight, departing Thu, 30 Jul from Vancouver to Chicago, returning Sat, 15 Aug, priced at S$626 found 6 days ago
Air Canada
Tue, 20 Oct - Wed, 28 Oct
SIN
Singapore
ORD
Chicago
S$997 Return, found 13 hours ago
S$997
Return
found 13 hours ago
Select Air Canada flight, departing Tue, 20 Oct from Singapore to Chicago, returning Wed, 28 Oct, priced at S$997 found 13 hours ago
Book with confidence
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.

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
Tue, 20 Oct - Wed, 28 Oct
SIN
Singapore
ORD
Chicago
S$997 Return, found 13 hours ago
S$997
Return
found 13 hours ago
Select Air Canada flight, departing Tue, 20 Oct from Singapore to Chicago, returning Wed, 28 Oct, priced at S$997 found 13 hours 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 S$482. 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$482 and S$997. Many lucky travellers nabbed one-way tickets from Vancouver (YVR) for as little as S$218.
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$482 to S$997.
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

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.

Travel information

Illinois Flights Information

Airlines serving
United, Delta, WestJet, American Airlines, Air Canada, Porter Airlines, Alaska Airlines
Roundtrip price
from S$482
Illinois Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.