Cheap Flights to Illinois | Popular Routes to Illinois from HK$810

View HK$810 flight on Sat, 18 Apr 2026Opens in a new window

Popular airlines to Illinois

  • Delta

  • Frontier Airlines

  • 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 HK$810 for one-way flights and HK$1,701 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 22 Apr - Wed, 29 Apr
LAX
Los Angeles
MDW
Chicago
HK$1,701 Return, found 6 days ago
HK$1,701
Return
found 6 days ago
Select Delta flight, departing Wed, 22 Apr from Los Angeles to Chicago, returning Wed, 29 Apr, priced at HK$1,701 found 6 days ago
Delta
Wed, 15 Apr - Sat, 2 May
LAX
Los Angeles
ORD
Chicago
HK$1,701 Return, found 20 hours ago
HK$1,701
Return
found 20 hours ago
Select Delta flight, departing Wed, 15 Apr from Los Angeles to Chicago, returning Sat, 2 May, priced at HK$1,701 found 20 hours ago
Alaska Airlines
Tue, 10 Mar - Tue, 24 Mar
LAX
Los Angeles
ORD
Chicago
HK$1,776 Return, found 6 days ago
HK$1,776
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 10 Mar from Los Angeles to Chicago, returning Tue, 24 Mar, priced at HK$1,776 found 6 days ago
American Airlines
Wed, 22 Apr - Wed, 29 Apr
LAX
Los Angeles
ORD
Chicago
HK$2,255 Return, found 6 days ago
HK$2,255
Return
found 6 days ago
Select American Airlines flight, departing Wed, 22 Apr from Los Angeles to Chicago, returning Wed, 29 Apr, priced at HK$2,255 found 6 days ago
United
Wed, 22 Apr - Wed, 29 Apr
LAX
Los Angeles
ORD
Chicago
HK$2,255 Return, found 6 days ago
HK$2,255
Return
found 6 days ago
Select United flight, departing Wed, 22 Apr from Los Angeles to Chicago, returning Wed, 29 Apr, priced at HK$2,255 found 6 days ago
Delta
Tue, 24 Feb - Sat, 7 Mar
LAX
Los Angeles
STL
St. Louis
HK$3,238 Return, found 5 days ago
HK$3,238
Return
found 5 days ago
Select Delta flight, departing Tue, 24 Feb from Los Angeles to St. Louis, returning Sat, 7 Mar, priced at HK$3,238 found 5 days ago
Delta
Wed, 24 Jun - Tue, 21 Jul
HKG
Hong Kong SAR
ORD
Chicago
HK$5,496 Return, found 3 hours ago
HK$5,496
Return
found 3 hours ago
Select Delta flight, departing Wed, 24 Jun from Hong Kong SAR to Chicago, returning Tue, 21 Jul, priced at HK$5,496 found 3 hours ago
Air Canada
Wed, 10 Jun - Mon, 20 Jul
HKG
Hong Kong SAR
ORD
Chicago
HK$5,793 Return, found 6 days ago
HK$5,793
Return
found 6 days ago
Select Air Canada flight, departing Wed, 10 Jun from Hong Kong SAR to Chicago, returning Mon, 20 Jul, priced at HK$5,793 found 6 days ago
Korean Air
Sat, 17 Oct - Sat, 24 Oct
HKG
Hong Kong SAR
ORD
Chicago
HK$6,604 Return, found 2 hours ago
HK$6,604
Return
found 2 hours ago
Select Korean Air flight, departing Sat, 17 Oct from Hong Kong SAR to Chicago, returning Sat, 24 Oct, priced at HK$6,604 found 2 hours ago
China Airlines
Tue, 6 Oct - Sat, 31 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$6,726 Return, found 5 days ago
HK$6,726
Return
found 5 days ago
Select China Airlines flight, departing Tue, 6 Oct from Hong Kong SAR to St. Louis, returning Sat, 31 Oct, priced at HK$6,726 found 5 days 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.

Delta
Wed, 24 Jun - Tue, 21 Jul
HKG
Hong Kong SAR
ORD
Chicago
HK$5,496 Return, found 3 hours ago
HK$5,496
Return
found 3 hours ago
Select Delta flight, departing Wed, 24 Jun from Hong Kong SAR to Chicago, returning Tue, 21 Jul, priced at HK$5,496 found 3 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 HK$1,701. 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$1,701 and HK$6,726. Many lucky travelers nabbed one-way tickets from Los Angeles (LAX) for as little as HK$810.
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$1,701 to HK$6,726.
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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