฿6,401+ 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 18/9. 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 18 July 2025.
Good one-way deal | ฿15,595 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 18 July 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 18 July 2025.
Find flights from St. Louis within your budget
Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 18 July 2025. In the last 7 days, Cheapflights users made a total of 17,341 searches
Fly to
Route
Depart
Return
Price
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 14/1
13:27-05:10
2 stops26h 43m
Bangkok Suvarnabhumi
Tue 17/2
22:50-12:20
2 stops26h 30m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 8/9
06:20-04:40
2 stops34h 20m
Bangkok Suvarnabhumi
Sun 14/9
00:25-22:59
2 stops34h 34m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sun 10/8
19:11-23:25
2 stops40h 14m
Bangkok Suvarnabhumi
Tue 30/9
21:40-00:38
2 stops38h 58m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 6/10
08:05-04:35
2 stops32h 30m
Bangkok Suvarnabhumi
Tue 4/11
09:25-16:27
2 stops44h 02m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 6/10
15:57-12:10
2 stops32h 13m
Bangkok Suvarnabhumi
Mon 3/11
02:35-15:18
2 stops49h 43m
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 20/9
15:35-23:10
2 stops43h 35m
Bangkok Suvarnabhumi
Fri 31/10
23:55-16:18
2 stops52h 23m
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 19/9
08:40-21:55
2 stops25h 15m
Chiang Mai
Tue 23/9
23:15-23:09
2 stops35h 54m
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 22/9
15:35-10:25
2 stops30h 50m
Chiang Mai
Wed 1/10
11:35-23:59
2 stops48h 24m
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 22/9
18:30-10:25
2 stops27h 55m
Chiang Mai
Wed 1/10
11:35-14:39
2 stops39h 04m
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sun 19/10
06:33-07:50
2 stops37h 17m
Phuket City
Sun 26/10
20:30-23:59
2 stops39h 29m
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 11 July 2025.
Booking 76 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, September is the cheapest month in which you can book a flight from St. Louis (average of ฿33,075). Flying from St. Louis in June will prove the most costly (average of ฿41,036). 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 (852 flights per day), Atlanta (237 flights per day) and Dallas (213 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 ฿15,595. Explore other affordable destinations below.
Airline reviews for flights from St. Louis
Get insights into the airlines that provide service from St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from St. Louis. In the last 7 days, Cheapflights users made a total of 17,341 searches.
Check out reviews from past customers who have flown ANA, Japan Airlines, andChina Airlines from St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Crew
Food
Comfort
Overall
Reviews
Anonymous,Jul 2025
MNL - NRT
Entertainment
Boarding
Crew
Food
Comfort
Overall
Reviews
Anonymous,Jul 2025
MNL - NRT
Entertainment
Boarding
Crew
Food
Comfort
Overall
Reviews
Anonymous,Jul 2025
MNL - NRT
Entertainment
Boarding
Crew
Food
Comfort
Overall
Reviews
Anonymous,Jul 2025
MNL - NRT
Entertainment
Boarding
Crew
Food
Comfort
Overall
Reviews
Anonymous,Jul 2025
MNL - NRT
Entertainment
Boarding
Crew
Food
Comfort
Overall
Reviews
Anonymous,Jul 2025
MNL - NRT
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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 18 July 2025.
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How does Cheapflights help users find flights from St. Louis?
Cheapflights helps you search for flights from St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from St. Louis?
Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
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.