Cheap Flights to Illinois | Popular Routes to Illinois from HK$695

View HK$695 flight on Sat, 28 Feb 2026Opens in a new window

Popular airlines to Illinois

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  • Spirit Airlines

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier 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$695 for one-way flights and HK$1,465 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 21 Feb - Mon, 2 Mar
EWR
New York
MDW
Chicago
HK$1,465 Return, found 23 hours ago
HK$1,465
Return
found 23 hours ago
Select Delta flight, departing Sat, 21 Feb from New York to Chicago, returning Mon, 2 Mar, priced at HK$1,465 found 23 hours ago
Delta
Sat, 25 Apr - Mon, 27 Apr
EWR
New York
ORD
Chicago
HK$1,505 Return, found 3 days ago
HK$1,505
Return
found 3 days ago
Select Delta flight, departing Sat, 25 Apr from New York to Chicago, returning Mon, 27 Apr, priced at HK$1,505 found 3 days ago
United
Sat, 25 Apr - Mon, 27 Apr
EWR
New York
ORD
Chicago
HK$1,620 Return, found 3 days ago
HK$1,620
Return
found 3 days ago
Select United flight, departing Sat, 25 Apr from New York to Chicago, returning Mon, 27 Apr, priced at HK$1,620 found 3 days ago
American Airlines
Mon, 23 Mar - Mon, 30 Mar
EWR
New York
ORD
Chicago
HK$1,706 Return, found 2 days ago
HK$1,706
Return
found 2 days ago
Select American Airlines flight, departing Mon, 23 Mar from New York to Chicago, returning Mon, 30 Mar, priced at HK$1,706 found 2 days ago
Air Canada
Wed, 24 Jun - Tue, 21 Jul
HKG
Hong Kong SAR
ORD
Chicago
HK$6,000 Return, found 9 hours ago
HK$6,000
Return
found 9 hours ago
Select Air Canada flight, departing Wed, 24 Jun from Hong Kong SAR to Chicago, returning Tue, 21 Jul, priced at HK$6,000 found 9 hours ago
China Airlines
Mon, 5 Oct - Tue, 6 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$6,680 Return, found 20 hours ago
HK$6,680
Return
found 20 hours ago
Select China Airlines flight, departing Mon, 5 Oct from Hong Kong SAR to St. Louis, returning Tue, 6 Oct, priced at HK$6,680 found 20 hours ago
EVA Airways
Fri, 6 Mar - Tue, 10 Mar
HKG
Hong Kong SAR
ORD
Chicago
HK$6,730 Return, found 1 hour ago
HK$6,730
Return
found 1 hour ago
Select EVA Airways flight, departing Fri, 6 Mar from Hong Kong SAR to Chicago, returning Tue, 10 Mar, priced at HK$6,730 found 1 hour ago
Korean Air
Thu, 15 Oct - Tue, 20 Oct
HKG
Hong Kong SAR
ORD
Chicago
HK$6,884 Return, found 14 hours ago
HK$6,884
Return
found 14 hours ago
Select Korean Air flight, departing Thu, 15 Oct from Hong Kong SAR to Chicago, returning Tue, 20 Oct, priced at HK$6,884 found 14 hours ago
Delta
Tue, 3 Mar - Mon, 9 Mar
HKG
Hong Kong SAR
MDW
Chicago
HK$6,914 Return, found 3 days ago
HK$6,914
Return
found 3 days ago
Select Delta flight, departing Tue, 3 Mar from Hong Kong SAR to Chicago, returning Mon, 9 Mar, priced at HK$6,914 found 3 days ago
Cathay Pacific
Thu, 15 Oct - Tue, 20 Oct
HKG
Hong Kong SAR
ORD
Chicago
HK$7,222 Return, found 14 hours ago
HK$7,222
Return
found 14 hours ago
Select Cathay Pacific flight, departing Thu, 15 Oct from Hong Kong SAR to Chicago, returning Tue, 20 Oct, priced at HK$7,222 found 14 hours ago

About Illinois

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.

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$1,465. 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$1,465 and HK$7,222. Many lucky travelers nabbed one-way tickets from New York (EWR) for as little as HK$695.
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$1,465 to HK$7,222.
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
Wed, 24 Jun - Tue, 21 Jul
HKG
Hong Kong SAR
ORD
Chicago
HK$6,000 Return, found 9 hours ago
HK$6,000
Return
found 9 hours ago
Select Air Canada flight, departing Wed, 24 Jun from Hong Kong SAR to Chicago, returning Tue, 21 Jul, priced at HK$6,000 found 9 hours ago
*Available to Expedia members.