Flight to Illinois

View S$574 flight on Tue, 9 Jun, 2026Opens in a new window

Popular airlines to Illinois

  • Frontier Airlines

  • Delta

  • 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 S$574 for one-way flights and S$1,067 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 9 Oct - Sun, 18 Oct
HKG
Hong Kong SAR
ORD
Chicago
S$1,067 Return, found 2 days ago
S$1,067
Return
found 2 days ago
Select Delta flight, departing Fri, 9 Oct from Hong Kong SAR to Chicago, returning Sun, 18 Oct, priced at S$1,067 found 2 days ago
United
Thu, 16 Apr - Wed, 22 Apr
HKG
Hong Kong SAR
ORD
Chicago
S$1,067 Return, found 13 hours ago
S$1,067
Return
found 13 hours ago
Select United flight, departing Thu, 16 Apr from Hong Kong SAR to Chicago, returning Wed, 22 Apr, priced at S$1,067 found 13 hours ago
All Nippon Airways
Mon, 5 Oct - Tue, 20 Oct
SIN
Singapore
ORD
Chicago
S$1,082 Return, found 1 day ago
S$1,082
Return
found 1 day ago
Select All Nippon Airways flight, departing Mon, 5 Oct from Singapore to Chicago, returning Tue, 20 Oct, priced at S$1,082 found 1 day ago
EVA Airways
Fri, 9 Oct - Sun, 18 Oct
HKG
Hong Kong SAR
ORD
Chicago
S$1,089 Return, found 2 days ago
S$1,089
Return
found 2 days ago
Select EVA Airways flight, departing Fri, 9 Oct from Hong Kong SAR to Chicago, returning Sun, 18 Oct, priced at S$1,089 found 2 days ago
Korean Air
Thu, 24 Dec - Fri, 8 Jan
SIN
Singapore
ORD
Chicago
S$1,221 Return, found 10 hours ago
S$1,221
Return
found 10 hours ago
Select Korean Air flight, departing Thu, 24 Dec from Singapore to Chicago, returning Fri, 8 Jan, priced at S$1,221 found 10 hours ago
Delta
Thu, 3 Sept - Thu, 10 Sept
SIN
Singapore
MDW
Chicago
S$1,224 Return, found 7 hours ago
S$1,224
Return
found 7 hours ago
Select Delta flight, departing Thu, 3 Sept from Singapore to Chicago, returning Thu, 10 Sept, priced at S$1,224 found 7 hours ago
Cathay Pacific
Fri, 9 Oct - Sun, 18 Oct
HKG
Hong Kong SAR
ORD
Chicago
S$1,265 Return, found 2 days ago
S$1,265
Return
found 2 days ago
Select Cathay Pacific flight, departing Fri, 9 Oct from Hong Kong SAR to Chicago, returning Sun, 18 Oct, priced at S$1,265 found 2 days ago
EVA Airways
Fri, 24 Apr - Wed, 29 Apr
HKG
Hong Kong SAR
STL
St. Louis
S$1,352 Return, found 2 days ago
S$1,352
Return
found 2 days ago
Select EVA Airways flight, departing Fri, 24 Apr from Hong Kong SAR to St. Louis, returning Wed, 29 Apr, priced at S$1,352 found 2 days ago
Qatar Airways
Tue, 9 Jun - Tue, 16 Jun
HKG
Hong Kong SAR
ORD
Chicago
S$1,380 Return, found 3 days ago
S$1,380
Return
found 3 days ago
Select Qatar Airways flight, departing Tue, 9 Jun from Hong Kong SAR to Chicago, returning Tue, 16 Jun, priced at S$1,380 found 3 days ago
Air Canada
Fri, 9 Oct - Sun, 18 Oct
HKG
Hong Kong SAR
ORD
Chicago
S$1,392 Return, found 2 days ago
S$1,392
Return
found 2 days ago
Select Air Canada flight, departing Fri, 9 Oct from Hong Kong SAR to Chicago, returning Sun, 18 Oct, priced at S$1,392 found 2 days ago

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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.

All Nippon Airways
Mon, 5 Oct - Tue, 20 Oct
SIN
Singapore
ORD
Chicago
S$1,082 Return, found 1 day ago
S$1,082
Return
found 1 day ago
Select All Nippon Airways flight, departing Mon, 5 Oct from Singapore to Chicago, returning Tue, 20 Oct, priced at S$1,082 found 1 day 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$1,067. 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$1,067 and S$1,392. Many lucky travellers nabbed one-way tickets from Hong Kong SAR (HKG) for as little as S$574.
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$1,067 to S$1,392.
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
Delta, EVA Airways, Air Canada, United, All Nippon Airways, Korean Air, Cathay Pacific, Qatar Airways
Roundtrip price
from S$1,067
Illinois Flights Information

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