Cheap Flights to Southern Illinois from HK$1,488

View HK$1,488 flight on Wed, 15 Jul 2026Opens in a new window

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Cheap round-trip flights to Southern Illinois

Prices were available within the past 7 days and start at HK$1,488 for one-way flights and HK$3,445 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 14 Jul - Mon, 27 Jul
SEA
Seattle
PAH
Paducah
HK$3,445 Return, found 8 hours ago
HK$3,445
Return
found 8 hours ago
Select United flight, departing Tue, 14 Jul from Seattle to Paducah, returning Mon, 27 Jul, priced at HK$3,445 found 8 hours ago
United
Fri, 18 Sept - Tue, 29 Sept
SEA
Seattle
PAH
Paducah
HK$3,487 Return, found 8 hours ago
HK$3,487
Return
found 8 hours ago
Select United flight, departing Fri, 18 Sept from Seattle to Paducah, returning Tue, 29 Sept, priced at HK$3,487 found 8 hours ago
United
Sat, 19 Sept - Fri, 9 Oct
SEA
Seattle
PAH
Paducah
HK$3,529 Return, found 8 hours ago
HK$3,529
Return
found 8 hours ago
Select United flight, departing Sat, 19 Sept from Seattle to Paducah, returning Fri, 9 Oct, priced at HK$3,529 found 8 hours ago
United
Tue, 14 Jul - Thu, 30 Jul
SEA
Seattle
PAH
Paducah
HK$3,638 Return, found 8 hours ago
HK$3,638
Return
found 8 hours ago
Select United flight, departing Tue, 14 Jul from Seattle to Paducah, returning Thu, 30 Jul, priced at HK$3,638 found 8 hours ago
United
Sat, 12 Sept - Tue, 29 Sept
SEA
Seattle
PAH
Paducah
HK$3,680 Return, found 8 hours ago
HK$3,680
Return
found 8 hours ago
Select United flight, departing Sat, 12 Sept from Seattle to Paducah, returning Tue, 29 Sept, priced at HK$3,680 found 8 hours ago

Frequently asked questions

How do I find cheap flights to Southern Illinois that have flexible change policies?
When it comes to flying these days, flexibility is key. That's why we have a "No change fee" search function to help you find flexible, low-priced tickets to Southern Illinois. It's on the left of your screen underneath the "Flexible change policies" heading.
Which airlines fly to Southern Illinois?
Work out your travel dates and then fly into or near Southern Illinois with one of these well-known airlines:

  • Southwest Airlines - 2,214 flights to or near Southern Illinois each month, including 2,214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 971 flights to or near Southern Illinois each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 728 flights to or near Southern Illinois each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to Southern Illinois?
You'll always nab a fabulous deal with Expedia, but our "flexible dates" search function makes it that much easier. Enter your preferred travel date, then click on the flexible dates link above to see a list of prices for nearby days. HK$3,445 was the best price for a flight to Southern Illinois in the last seven days.
How much is a flight to Southern Illinois?
There were a lot of low-cost fares for the taking in the last seven days, with the price of a return ticket to Southern Illinois varying between HK$3,445 and HK$8,292. Many lucky travellers scored one-way seats from Seattle (SEA) for just HK$1,488.
What are the most popular airports to fly into in Southern Illinois?
Jet off to Southern Illinois and you'll have a few airports to decide between. Here are some of the region's busiest:

  • Lambert-St. Louis Intl. Airport (STL) - 4,902 flights per month.
  • Evansville Regional Airport (EVV) - 277 flights per month.
  • Williamson County Regional Airport (MWA) - 156 flights per month.

When is the cheapest time to fly to Southern Illinois?
If you'd prefer to spend your cash experiencing Southern Illinois rather than on your flight there, leave earlier in the week. The cheapest day to travel is normally Tuesday, with Monday a close second. With many folks travelling on the weekend, Saturday typically has the highest ticket prices.
How much is a plane ticket to Southern Illinois?
Airfares varied from HK$3,445 to HK$8,292 over the last seven days. When you're ready to book, we're here to help you pick up the best price to Southern Illinois.
What months are the cheapest to book a flight to Southern Illinois?
To pick up an awesome deal to Southern Illinois, book during February when prices are at their cheapest. The most expensive time to book? In the U.S, it's the festive month of December.

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Return price
HK$3,443

Trending flights to Southern Illinois

Prices were available within the past 7 days and start at HK$1,488 for one-way flights and HK$3,445 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Wed, 23 Sept - Sat, 3 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$8,292 Return, found 12 hours ago
HK$8,292
Return
found 12 hours ago
Select EVA Airways flight, departing Wed, 23 Sept from Hong Kong SAR to St. Louis, returning Sat, 3 Oct, priced at HK$8,292 found 12 hours ago

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