Cheap Flights to Illinois | Popular Routes to Illinois from HK$1,297

View HK$1,297 flight on Thu, 23 Jul 2026Opens in a new window

Popular airlines to Illinois

  • Delta

  • Frontier Airlines

  • American Airlines

  • United

  • Alaska Airlines

  • JetBlue Airways

  • Southwest Airlines

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Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at HK$1,297 for one-way flights and HK$5,480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 3 Jun - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,480 Return, found 2 days ago
HK$5,480
Return
found 2 days ago
Select American Airlines flight, departing Wed, 3 Jun from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,480 found 2 days ago
United
Wed, 3 Jun - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,480 Return, found 2 days ago
HK$5,480
Return
found 2 days ago
Select United flight, departing Wed, 3 Jun from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,480 found 2 days ago
American Airlines
Wed, 3 Jun - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,486 Return, found 2 days ago
HK$5,486
Return
found 2 days ago
Select American Airlines flight, departing Wed, 3 Jun from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,486 found 2 days ago
United
Wed, 3 Jun - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,490 Return, found 2 days ago
HK$5,490
Return
found 2 days ago
Select United flight, departing Wed, 3 Jun from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,490 found 2 days ago
American Airlines
Wed, 3 Jun - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,916 Return, found 2 days ago
HK$5,916
Return
found 2 days ago
Select American Airlines flight, departing Wed, 3 Jun from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,916 found 2 days ago
United
Sun, 31 May - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,920 Return, found 6 hours ago
HK$5,920
Return
found 6 hours ago
Select United flight, departing Sun, 31 May from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,920 found 6 hours ago
American Airlines
Sun, 31 May - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$5,998 Return, found 6 hours ago
HK$5,998
Return
found 6 hours ago
Select American Airlines flight, departing Sun, 31 May from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$5,998 found 6 hours ago
American Airlines
Sun, 31 May - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$6,076 Return, found 6 hours ago
HK$6,076
Return
found 6 hours ago
Select American Airlines flight, departing Sun, 31 May from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$6,076 found 6 hours ago
Delta
Sun, 31 May - Sun, 7 Jun
BWI
Baltimore
MDW
Chicago
HK$6,227 Return, found 10 hours ago
HK$6,227
Return
found 10 hours ago
Select Delta flight, departing Sun, 31 May from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$6,227 found 10 hours ago
Delta
Sun, 31 May - Sun, 7 Jun
BWI
Baltimore
ORD
Chicago
HK$6,310 Return, found 6 hours ago
HK$6,310
Return
found 6 hours ago
Select Delta flight, departing Sun, 31 May from Baltimore to Chicago, returning Sun, 7 Jun, priced at HK$6,310 found 6 hours ago
Book with confidence

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.

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
Sun, 13 Sept - Tue, 15 Sept
HKG
Hong Kong SAR
MDW
Chicago
HK$6,806 Return, found 8 hours ago
HK$6,806
Return
found 8 hours ago
Select Delta flight, departing Sun, 13 Sept from Hong Kong SAR to Chicago, returning Tue, 15 Sept, priced at HK$6,806 found 8 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$5,480. 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$5,480 and HK$6,806. Many lucky travelers nabbed one-way tickets from Baltimore (BWI) for as little as HK$1,297.
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$5,480 to HK$6,806.
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

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.
About Illinois

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