A large eye sculpture in a park surrounded by trees.

Cheap Flights to St. Louis County | Popular Routes to St. Louis County from HK$856

View HK$856 flight on Sat, 1 Aug 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to St. Louis County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Alaska Airlines

  • Frontier Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to St. Louis County

Prices were available within the past 7 days and start at HK$856 for one-way flights and HK$1,787 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 1 Aug - Mon, 3 Aug
DFW
Dallas
STL
St. Louis
HK$1,787 Return, found 20 hours ago
HK$1,787
Return
found 20 hours ago
Select Delta flight, departing Sat, 1 Aug from Dallas to St. Louis, returning Mon, 3 Aug, priced at HK$1,787 found 20 hours ago
American Airlines
Sat, 1 Aug - Mon, 3 Aug
DFW
Dallas
STL
St. Louis
HK$2,021 Return, found 20 hours ago
HK$2,021
Return
found 20 hours ago
Select American Airlines flight, departing Sat, 1 Aug from Dallas to St. Louis, returning Mon, 3 Aug, priced at HK$2,021 found 20 hours ago
Delta
Sat, 8 Aug - Sat, 15 Aug
DAL
Dallas
STL
St. Louis
HK$2,024 Return, found 4 days ago
HK$2,024
Return
found 4 days ago
Select Delta flight, departing Sat, 8 Aug from Dallas to St. Louis, returning Sat, 15 Aug, priced at HK$2,024 found 4 days ago
Delta
Sat, 8 Aug - Sat, 15 Aug
DFW
Dallas
STL
St. Louis
HK$2,034 Return, found 4 days ago
HK$2,034
Return
found 4 days ago
Select Delta flight, departing Sat, 8 Aug from Dallas to St. Louis, returning Sat, 15 Aug, priced at HK$2,034 found 4 days ago
United
Sat, 1 Aug - Mon, 3 Aug
DFW
Dallas
STL
St. Louis
HK$2,099 Return, found 20 hours ago
HK$2,099
Return
found 20 hours ago
Select United flight, departing Sat, 1 Aug from Dallas to St. Louis, returning Mon, 3 Aug, priced at HK$2,099 found 20 hours ago
Delta
Sat, 1 Aug - Mon, 3 Aug
DFW
Dallas
STL
St. Louis
HK$2,185 Return, found 20 hours ago
HK$2,185
Return
found 20 hours ago
Select Delta flight, departing Sat, 1 Aug from Dallas to St. Louis, returning Mon, 3 Aug, priced at HK$2,185 found 20 hours ago
American Airlines
Sat, 1 Aug - Mon, 3 Aug
DFW
Dallas
STL
St. Louis
HK$2,255 Return, found 20 hours ago
HK$2,255
Return
found 20 hours ago
Select American Airlines flight, departing Sat, 1 Aug from Dallas to St. Louis, returning Mon, 3 Aug, priced at HK$2,255 found 20 hours ago
Delta
Sat, 8 Aug - Sat, 15 Aug
DFW
Dallas
STL
St. Louis
HK$2,260 Return, found 4 days ago
HK$2,260
Return
found 4 days ago
Select Delta flight, departing Sat, 8 Aug from Dallas to St. Louis, returning Sat, 15 Aug, priced at HK$2,260 found 4 days ago
LATAM Airlines Group
Fri, 3 Jul - Sun, 5 Jul
MDE
Medellín
STL
St. Louis
HK$8,331 Return, found 21 hours ago
HK$8,331
Return
found 21 hours ago
Select LATAM Airlines Group flight, departing Fri, 3 Jul from Medellín to St. Louis, returning Sun, 5 Jul, priced at HK$8,331 found 21 hours ago
Lufthansa
Mon, 13 Jul - Mon, 10 Aug
HKG
Hong Kong SAR
STL
St. Louis
HK$11,229 Return, found 2 days ago
HK$11,229
Return
found 2 days ago
Select Lufthansa flight, departing Mon, 13 Jul from Hong Kong SAR to St. Louis, returning Mon, 10 Aug, priced at HK$11,229 found 2 days ago

Trending flights to St. Louis County

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, 4 Oct - Sun, 18 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$9,337 Return, found 1 day ago
HK$9,337
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Oct from Hong Kong SAR to St. Louis, returning Sun, 18 Oct, priced at HK$9,337 found 1 day ago

Frequently asked questions

How do I find cheap flights to St. Louis County that have flexible change policies?
When it comes to traveling these days, flexibility is key. That's why we have a "No change fee" search function to help you track down cheap and flexible flights to St. Louis County. It's near the top left of your screen directly underneath the "Flexible change policies" heading.
Which airlines fly to St. Louis County?
When you're ready to lock in your seat to or near St. Louis County, these leading airlines are waiting to welcome you aboard:

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

How can I find cheap tickets to St. Louis County?
An excellent strategy for scoring cheap fares is to be flexible with your travel dates. Begin with searching for your flight to St. Louis County, then click on the "flexible dates" box to see prices for nearby days. Want another good tip? Book ahead of time. To give you an idea of costs, HK$1,787 was the best price for a flight to St. Louis County in the last seven days.
How much is a flight to St. Louis County?
There were plenty of budget-friendly fares up for grabs in the last seven days, with the price of a return ticket to St. Louis County ranging between HK$1,787 and HK$11,229. Many lucky holiday makers nabbed one-way flights from Dallas (DFW) for as low as HK$856.
What are the most popular airports to fly into in St. Louis County?
The principal gateway to St. Louis County, around 4,902 flights taxi into Lambert-St. Louis Intl. Airport (STL) each month. Search for an amazing deal, lock in your fare and get set to explore this fantastic region.
When is the cheapest time to fly to St. Louis County?
Leave for St. Louis County earlier in the week and you'll usually be rewarded with lower-priced fares. Tuesday is generally the cheapest day to jump on a plane, with Monday a close second. If you'd like to avoid the most expensive flights, stay away from Saturdays.
How much is a plane ticket to St. Louis County?
In the last seven days, flights to St. Louis County cost between HK$1,787 and HK$11,229. Prices depend on a number of things, particularly the departure time, airline, cabin class and how early you make your booking.
What months are the cheapest to book a flight to St. Louis County?
Reserve your ticket in February to enjoy the lowest-priced flights to St. Louis County. The festive month of December is usually the most expensive time to purchase an airfare.

Book with confidence

About St. Louis County

Expedia offers flights to St. Louis County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to St. Louis County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About St. Louis County
*Available to Expedia members.