Cheap Flights to Illinois | Popular Routes to Illinois from HK$980

View HK$980 flight on Thu, 25 Dec 2025Opens 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 HK$980 for one-way flights and HK$2,360 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 21 Jan - Thu, 22 Jan
LAX
Los Angeles
ORD
Chicago
HK$2,360 Return, just found
HK$2,360
Return
just found
Select Alaska Airlines flight, departing Wed, 21 Jan from Los Angeles to Chicago, returning Thu, 22 Jan, priced at HK$2,360 just found
Delta
Sat, 31 Jan - Sat, 7 Feb
LAX
Los Angeles
STL
St. Louis
HK$2,456 Return, found 4 days ago
HK$2,456
Return
found 4 days ago
Select Delta flight, departing Sat, 31 Jan from Los Angeles to St. Louis, returning Sat, 7 Feb, priced at HK$2,456 found 4 days ago
United
Thu, 25 Dec - Sat, 10 Jan
LAX
Los Angeles
ORD
Chicago
HK$2,777 Return, found 1 day ago
HK$2,777
Return
found 1 day ago
Select United flight, departing Thu, 25 Dec from Los Angeles to Chicago, returning Sat, 10 Jan, priced at HK$2,777 found 1 day ago
Delta
Thu, 5 Feb - Wed, 11 Feb
LAX
Los Angeles
MDW
Chicago
HK$3,026 Return, found 5 days ago
HK$3,026
Return
found 5 days ago
Select Delta flight, departing Thu, 5 Feb from Los Angeles to Chicago, returning Wed, 11 Feb, priced at HK$3,026 found 5 days ago
American Airlines
Thu, 25 Dec - Sat, 10 Jan
LAX
Los Angeles
ORD
Chicago
HK$3,089 Return, found 1 day ago
HK$3,089
Return
found 1 day ago
Select American Airlines flight, departing Thu, 25 Dec from Los Angeles to Chicago, returning Sat, 10 Jan, priced at HK$3,089 found 1 day ago
Air Canada
Thu, 2 Apr - Sun, 19 Apr
HKG
Hong Kong SAR
ORD
Chicago
HK$6,164 Return, found 4 days ago
HK$6,164
Return
found 4 days ago
Select Air Canada flight, departing Thu, 2 Apr from Hong Kong SAR to Chicago, returning Sun, 19 Apr, priced at HK$6,164 found 4 days ago
China Airlines
Thu, 29 Jan - Mon, 2 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$6,717 Return, found 2 days ago
HK$6,717
Return
found 2 days ago
Select China Airlines flight, departing Thu, 29 Jan from Hong Kong SAR to St. Louis, returning Mon, 2 Feb, priced at HK$6,717 found 2 days ago
EVA Airways
Wed, 14 Jan - Fri, 13 Feb
HKG
Hong Kong SAR
ORD
Chicago
HK$6,721 Return, found 1 hour ago
HK$6,721
Return
found 1 hour ago
Select EVA Airways flight, departing Wed, 14 Jan from Hong Kong SAR to Chicago, returning Fri, 13 Feb, priced at HK$6,721 found 1 hour ago
Cathay Pacific
Thu, 5 Feb - Sat, 28 Feb
HKG
Hong Kong SAR
ORD
Chicago
HK$7,213 Return, found 1 hour ago
HK$7,213
Return
found 1 hour ago
Select Cathay Pacific flight, departing Thu, 5 Feb from Hong Kong SAR to Chicago, returning Sat, 28 Feb, priced at HK$7,213 found 1 hour ago
Korean Air
Thu, 5 Feb - Sat, 28 Feb
HKG
Hong Kong SAR
ORD
Chicago
HK$7,263 Return, found 1 hour ago
HK$7,263
Return
found 1 hour ago
Select Korean Air flight, departing Thu, 5 Feb from Hong Kong SAR to Chicago, returning Sat, 28 Feb, priced at HK$7,263 found 1 hour ago

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
Thu, 2 Apr - Sun, 19 Apr
HKG
Hong Kong SAR
ORD
Chicago
HK$6,164 Return, found 4 days ago
HK$6,164
Return
found 4 days ago
Select Air Canada flight, departing Thu, 2 Apr from Hong Kong SAR to Chicago, returning Sun, 19 Apr, priced at HK$6,164 found 4 days 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 HK$2,360. 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 HK$2,360 and HK$7,263. Many lucky travelers nabbed one-way tickets from Los Angeles (LAX) for as little as HK$980.
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 HK$2,360 to HK$7,263.
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

About Illinois

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About Illinois

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