Cheap Flights to St. Louis County | Popular Routes to St. Louis County from HK$693

View HK$693 flight on Tue, 17 Feb 2026Opens in a new window

Popular airlines to St. Louis County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Alaska Airlines

    Alaska Airlines

  • Air Canada

    Air Canada

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Cheap round-trip flights to St. Louis County

Prices were available within the past 7 days and start at HK$693 for one-way flights and HK$2,267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 23 May - Sat, 30 May
SEA
Seattle
STL
St. Louis
HK$2,267 Return, found 5 days ago
HK$2,267
Return
found 5 days ago
Select Delta flight, departing Sat, 23 May from Seattle to St. Louis, returning Sat, 30 May, priced at HK$2,267 found 5 days ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,330 Return, found 5 hours ago
HK$2,330
Return
found 5 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,330 found 5 hours ago
Delta
Mon, 6 Jul - Fri, 10 Jul
LGA
New York
STL
St. Louis
HK$2,446 Return, found 3 hours ago
HK$2,446
Return
found 3 hours ago
Select Delta flight, departing Mon, 6 Jul from New York to St. Louis, returning Fri, 10 Jul, priced at HK$2,446 found 3 hours ago
Delta
Mon, 6 Jul - Fri, 10 Jul
JFK
New York
STL
St. Louis
HK$2,640 Return, found 3 hours ago
HK$2,640
Return
found 3 hours ago
Select Delta flight, departing Mon, 6 Jul from New York to St. Louis, returning Fri, 10 Jul, priced at HK$2,640 found 3 hours ago
United
Sat, 23 May - Sat, 30 May
SEA
Seattle
STL
St. Louis
HK$2,880 Return, found 5 days ago
HK$2,880
Return
found 5 days ago
Select United flight, departing Sat, 23 May from Seattle to St. Louis, returning Sat, 30 May, priced at HK$2,880 found 5 days ago
Delta
Tue, 10 Feb - Wed, 18 Feb
BOS
Boston
STL
St. Louis
HK$2,959 Return, found 20 hours ago
HK$2,959
Return
found 20 hours ago
Select Delta flight, departing Tue, 10 Feb from Boston to St. Louis, returning Wed, 18 Feb, priced at HK$2,959 found 20 hours ago
United
Mon, 6 Jul - Fri, 10 Jul
EWR
New York
STL
St. Louis
HK$3,471 Return, found 3 hours ago
HK$3,471
Return
found 3 hours ago
Select United flight, departing Mon, 6 Jul from New York to St. Louis, returning Fri, 10 Jul, priced at HK$3,471 found 3 hours ago
Delta
Wed, 1 Apr - Sun, 5 Apr
MEX
Mexico City
STL
St. Louis
HK$4,350 Return, found 3 days ago
HK$4,350
Return
found 3 days ago
Select Delta flight, departing Wed, 1 Apr from Mexico City to St. Louis, returning Sun, 5 Apr, priced at HK$4,350 found 3 days ago
Aeromexico
Wed, 1 Apr - Sun, 5 Apr
MEX
Mexico City
STL
St. Louis
HK$7,210 Return, found 3 days ago
HK$7,210
Return
found 3 days ago
Select Aeromexico flight, departing Wed, 1 Apr from Mexico City to St. Louis, returning Sun, 5 Apr, priced at HK$7,210 found 3 days ago
Air Canada
Mon, 16 Mar - Thu, 19 Mar
MEX
Mexico City
STL
St. Louis
HK$7,356 Return, found 22 hours ago
HK$7,356
Return
found 22 hours ago
Select Air Canada flight, departing Mon, 16 Mar from Mexico City to St. Louis, returning Thu, 19 Mar, priced at HK$7,356 found 22 hours ago

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.

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$2,267 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$2,267 and HK$7,382. Many lucky holiday makers nabbed one-way flights from Seattle (SEA) for as low as HK$693.
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$2,267 and HK$7,382. 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.

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.

China Airlines
Tue, 10 Nov - Sun, 15 Nov
HKG
Hong Kong SAR
STL
St. Louis
HK$7,382 Return, found 1 day ago
HK$7,382
Return
found 1 day ago
Select China Airlines flight, departing Tue, 10 Nov from Hong Kong SAR to St. Louis, returning Sun, 15 Nov, priced at HK$7,382 found 1 day ago
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