฿17,826 Find Cheap Flights from St. Louis to Thailand – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Thailand departing on 13/9. 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.
1 adult
1 adult, Economy, 0 bags

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Best Thailand Flight Deals from St. Louis

Cheapest return prices found by our users on KAYAK in the last 72 hours
Chiang Mai
Chiang Mai2 stops฿44,228
Phuket City
Phuket City2 stops฿35,887
Chiang Mai
Chiang Mai2 stops฿44,228
Phuket City
Phuket City2 stops฿35,887

Cheap Flights from St. Louis to Thailand

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Thailand that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from St. Louis to Thailand

Wed 19 Aug - Wed 26 Aug
แอร์แคนาดา Logo
12:10 - 05:05
STL
-
BKK
28h 55m
2 stops
แอร์แคนาดา Logo
07:05 - 18:42
BKK
-
STL
47h 37m
2 stops
฿34,407แอร์แคนาดา
Tue 18 Aug - Tue 25 Aug
แอร์แคนาดา Logo
12:10 - 05:05
STL
-
BKK
52h 55m
2 stops
แอร์แคนาดา Logo
07:45 - 18:42
BKK
-
STL
46h 57m
2 stops
฿34,811แอร์แคนาดา
Wed 28 Oct - Sun 8 Nov
Multiple Airlines Logo
11:31 - 06:35
STL
-
BKK
31h 04m
2 stops
Multiple Airlines Logo
20:50 - 21:07
BKK
-
STL
37h 17m
2 stops
฿34,878Multiple Airlines
Wed 7 Oct - Fri 16 Oct
Multiple Airlines Logo
11:31 - 06:40
STL
-
HKT
31h 09m
2 stops
Multiple Airlines Logo
00:55 - 23:58
HKT
-
STL
35h 03m
2 stops
฿35,887Multiple Airlines
Wed 19 Aug - Fri 4 Sep
แอร์แคนาดา Logo
12:10 - 05:05
STL
-
BKK
28h 55m
2 stops
แอร์แคนาดา Logo
07:45 - 18:42
BKK
-
STL
46h 57m
2 stops
฿36,694แอร์แคนาดา
Wed 7 Oct - Wed 14 Oct
Multiple Airlines Logo
05:28 - 23:55
STL
-
BKK
30h 27m
2 stops
Multiple Airlines Logo
21:00 - 16:43
BKK
-
STL
31h 43m
2 stops
฿36,795Multiple Airlines
Wed 5 Aug - Wed 26 Aug
เอทิฮัดแอร์เวย์ Logo
15:25 - 18:20
STL
-
HKT
62h 55m
2 stops
เอทิฮัดแอร์เวย์ Logo
09:25 - 18:59
HKT
-
STL
45h 34m
2 stops
฿38,073เอทิฮัดแอร์เวย์
Wed 21 Oct - Mon 2 Nov
ลุฟท์ฮันซ่า Logo
13:29 - 13:45
STL
-
BKK
36h 16m
2 stops
ลุฟท์ฮันซ่า Logo
23:30 - 21:13
BKK
-
STL
34h 43m
2 stops
฿39,284ลุฟท์ฮันซ่า
Tue 18 Aug - Tue 25 Aug
เอทิฮัดแอร์เวย์ Logo
16:54 - 06:40
STL
-
HKT
25h 46m
2 stops
เอทิฮัดแอร์เวย์ Logo
21:20 - 12:54
HKT
-
STL
27h 34m
2 stops
฿40,260เอทิฮัดแอร์เวย์
Thu 15 Oct - Mon 19 Oct
Qatar Airways Logo
07:02 - 07:45
STL
-
HKT
36h 43m
2 stops
Qatar Airways Logo
09:20 - 23:59
HKT
-
STL
50h 39m
2 stops
฿45,069Qatar Airways
Booking Insights

KAYAK's insights & trends for St. Louis to Thailand flights

Get data-powered insights and trends into flights from St. Louis to Thailand to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest month to fly from St. Louis to Thailand?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Thailand, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Thailand is August, when tickets cost ฿32,927 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is ฿55,765 and ฿50,350 respectively.

How far in advance should I book a flight from St. Louis to Thailand?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Thailand, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from St. Louis to Thailand, you should book around 2 weeks before departure, which saves you about 13% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Find deals

Good to know

Low season

October

Cheapest flight

฿17,826
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from St. Louis to Bangkok

FAQs - booking Thailand flights

  • How does KAYAK find such low prices on flights from St. Louis to Thailand?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Thailand.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Thailand?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Thailand is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Thailand?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from St. Louis to Thailand with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Thailand?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Thailand up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Thailand

Information on your arrival and departure airports

St. Louis (STL)