฿4,154+ Cheap flights from St. Louis
This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
What to know about flights from St. Louis
Discover essential information about flights departing from St. Louis, including flight schedules, destinations, airlines operating at the St. Louis airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 15 September 2025.
Good one-way deal | ฿15,221 or less |
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Find flights from St. Louis
Cheapest flights from St. LouisExplore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 15 September 2025.
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 15 September 2025.
Find flights from St. Louis within your budget
Fly to
Route
Depart
Return
Price
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/3
14:55-12:05
2 stops32h 10m
Bangkok Suvarnabhumi
Thu 26/3
07:15-12:20
2 stops41h 05m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/2
08:25-11:25
3 stops38h 00m
Bangkok Suvarnabhumi
Wed 11/2
16:55-09:23
3 stops29h 28m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 5/11
11:20-11:25
3 stops35h 05m
Bangkok Suvarnabhumi
Wed 19/11
16:55-12:28
3 stops32h 33m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 13/11
08:20-11:25
3 stops38h 05m
Bangkok Suvarnabhumi
Mon 24/11
16:55-10:51
3 stops30h 56m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 7/1
17:00-11:25
2 stops53h 25m
Bangkok Suvarnabhumi
Wed 4/3
09:10-21:00
2 stops24h 50m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 16/2
07:41-05:10
2 stops32h 29m
Bangkok Suvarnabhumi
Sun 8/3
16:55-00:27
2 stops43h 32m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 17/1
14:55-11:15
2 stops31h 20m
Bangkok Suvarnabhumi
Sat 24/1
23:55-13:52
2 stops50h 57m
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Tue 18/11
06:00-11:20
2 stops40h 20m
Phuket City
Wed 3/12
18:35-23:57
2 stops42h 22m
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Wed 4/2
06:00-17:35
2 stops46h 35m
Phuket City
Wed 11/2
18:35-17:56
2 stops36h 21m
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sat 8/11
08:39-11:20
2 stops37h 41m
Phuket City
Sun 16/11
18:35-23:42
2 stops42h 07m
Best time to book a flight from St. Louis
Have a flexible travel schedule? Discover the best time to fly from St. Louis with our price prediction graph.
Travel insights for flights from St. Louis
Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.
When is the best time to book a flight from St. Louis?
Use this chart to determine the optimal time to book a return flight from St. Louis to Suvarnabhumi. Price data was last updated on 12 September 2025.
Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from St. Louis?
Currently, August is the cheapest month in which you can book a flight from St. Louis (average of ฿30,538). Flying from St. Louis in June will prove the most costly (average of ฿40,051). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
What are popular destinations to fly to from St. Louis?
If you’re flying from St. Louis, these routes are more frequently taken by airlines Chicago (740 flights per day), Atlanta (239 flights per day) and Dallas (156 flights per day).
What is the cheapest place to fly to from St. Louis?
The cheapest city to fly to from St. Louis is Houston Hobby, with prices starting at ฿15,221. Explore other affordable destinations below.
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Direct flights from Missouri
Book a direct flight from one of these other cities located in Missouri.
Related info for your journey
Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 15 September 2025.
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How does Cheapflights help users find flights from St. Louis?
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Why should you use Cheapflights to find cheap flight tickets from St. Louis?
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Can Cheapflights find flights from St. Louis with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from St. Louis become cheaper?
Yes, Cheapflights offers price alerts on flights from St. Louis so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.