CA $397 Cheap Flights from St. Louis (STL) to St. Thomas (STT)

View CA $397 flight on Sat, Sep. 20, 2025Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Cyril E. King Airport (STT)

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Cheap flights from St. Louis (STL) to St. Thomas (STT)

Prices were available within the past 7 days and start at CA $397 for one-way flights and CA $691 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat., Sep. 20 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $691 Roundtrip, found 3 days ago
CA $691
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $691 found 3 days ago
Delta
Sat., Sep. 20 - Sun., Sep. 28
STL
St. Louis
STT
St. Thomas
CA $705 Roundtrip, found 3 days ago
CA $705
Roundtrip
found 3 days ago
Select Delta flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sun., Sep. 28, priced at CA $705 found 3 days ago
Delta
Sat., Sep. 20 - Thu., Sep. 25
STL
St. Louis
STT
St. Thomas
CA $739 Roundtrip, found 3 days ago
CA $739
Roundtrip
found 3 days ago
Select Delta flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Thu., Sep. 25, priced at CA $739 found 3 days ago
Delta
Sun., Sep. 21 - Thu., Sep. 25
STL
St. Louis
STT
St. Thomas
CA $742 Roundtrip, found 3 days ago
CA $742
Roundtrip
found 3 days ago
Select Delta flight, departing Sun., Sep. 21 from St. Louis to St. Thomas, returning Thu., Sep. 25, priced at CA $742 found 3 days ago
American Airlines
Sat., Sep. 20 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $800 Roundtrip, found 3 days ago
CA $800
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $800 found 3 days ago
Delta
Sat., Sep. 20 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $813 Roundtrip, found 3 days ago
CA $813
Roundtrip
found 3 days ago
Select Delta flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $813 found 3 days ago
American Airlines
Sat., Sep. 20 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $814 Roundtrip, found 3 days ago
CA $814
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $814 found 3 days ago
Delta
Mon., Sep. 22 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $832 Roundtrip, found 3 days ago
CA $832
Roundtrip
found 3 days ago
Select Delta flight, departing Mon., Sep. 22 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $832 found 3 days ago
United
Sat., Sep. 20 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $849 Roundtrip, found 3 days ago
CA $849
Roundtrip
found 3 days ago
Select United flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $849 found 3 days ago
United
Sat., Sep. 20 - Sat., Sep. 27
STL
St. Louis
STT
St. Thomas
CA $849 Roundtrip, found 3 days ago
CA $849
Roundtrip
found 3 days ago
Select United flight, departing Sat., Sep. 20 from St. Louis to St. Thomas, returning Sat., Sep. 27, priced at CA $849 found 3 days ago

Find the cheapest month to fly from St. Louis (STL) to St. Thomas (STT)

April is typically the cheapest month to fly

From CA $250 - CA $948 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to St. Thomas (STL - STT) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Cyril E. King
Roundtrip price
CA $691
Distance
3320 km

St. Louis to St. Thomas Flights

The easy way to book your flights from St. Louis to St. Thomas 

With Expedia, it’s simple to find and book flights to St. Thomas from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Cyril E. King, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to St. Thomas today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Cyril E. King, STT 

Sort your search results by price to find great deals on your flight from St. Louis to St. Thomas—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Thomas from St. Louis currently is just CA $691 rising to CA $1,256.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Thomas  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Thomas from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Thomas with Expedia today.

Frequently asked questions

How much is a flight from STL to Cyril E. King Airport?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between STL and STT start from CA $691. Book today to secure the best price for your adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert Field to Cyril E. King Airport?
Most flights can be cancelled online, but each airline has a different set of terms and conditions. If you do have to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Lambert-St. Louis Intl. Airport (STL) to Cyril E. King Airport that have flexible change policies?
Flights from Lambert-St. Louis Intl. Airport (STL) to Cyril E. King Airport with flexible change policies are available with many airlines. Simply use our "No change fees" filter during your search. You'll only need to pay the fare difference, without any extra fees to worry about.
How many hours is the flight from Lambert Field to Cyril E. King Airport (STT)?
The average flight time between STL and Cyril E. King Airport (STT) is 6 hours and 6 minutes. If you're travelling with kids, it's always a good idea to pack some snacks or fruit in your carry-on bag.
How far is the flight from Lambert Field to Cyril E. King Airport?
It's around 3,300 kilometres from St. Louis to St. Thomas, so you'll be flying for a while. Keep yourself occupied by packing things like crossword puzzles or the latest bestseller.
Which airlines fly direct from Lambert Field to STT?
If you want to travel straight from Lambert-St. Louis Intl. Airport (STL) to STT, you'll need to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly on this route.
Are Lambert Field to Cyril E. King Airport (STT) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally nab a bargain, with some super cheap airfares from STL to Cyril E. King Airport (STT) appearing a few weeks before the departure date. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals continually --- as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines quote prices that far in advance.

Explore a world of travel with Expedia

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