฿20,276 Find Cheap Flights from St. Louis to Southeast Asia

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 Southeast Asia departing on 12/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Best Southeast Asia Flight Deals from St. Louis

Cheapest return prices found by our users on KAYAK in the last 72 hours
Chiang Mai
Chiang Mai2 stops฿46,232
Phuket City
Phuket City2 stops฿35,164
Chiang Mai
Chiang Mai2 stops฿46,232
Phuket City
Phuket City2 stops฿35,164

Cheap Flights from St. Louis to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Southeast Asia 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 Southeast Asia

Thu 20 Aug - Tue 17 Nov
เอทิฮัดแอร์เวย์ Logo
08:34 - 23:50
STL
-
BKK
27h 16m
2 stops
เอทิฮัดแอร์เวย์ Logo
02:55 - 13:17
BKK
-
STL
47h 22m
2 stops
฿33,042เอทิฮัดแอร์เวย์
Sat 3 Oct - Sat 10 Oct
เอทิฮัดแอร์เวย์ Logo
17:18 - 06:45
STL
-
BKK
25h 27m
2 stops
เอทิฮัดแอร์เวย์ Logo
15:55 - 15:30
BKK
-
STL
35h 35m
2 stops
฿33,107เอทิฮัดแอร์เวย์
Thu 20 Aug - Wed 18 Nov
เอทิฮัดแอร์เวย์ Logo
06:54 - 23:50
STL
-
BKK
28h 56m
2 stops
เอทิฮัดแอร์เวย์ Logo
08:30 - 13:17
BKK
-
STL
41h 47m
2 stops
฿33,140เอทิฮัดแอร์เวย์
Mon 16 Nov - Mon 23 Nov
เอทิฮัดแอร์เวย์ Logo
06:00 - 06:35
STL
-
BKK
35h 35m
2 stops
เอทิฮัดแอร์เวย์ Logo
08:30 - 13:17
BKK
-
STL
41h 47m
2 stops
฿33,238เอทิฮัดแอร์เวย์
Thu 10 Sep - Thu 17 Sep
Multiple Airlines Logo
17:18 - 06:45
STL
-
BKK
25h 27m
2 stops
Multiple Airlines Logo
21:00 - 17:30
BKK
-
STL
32h 30m
2 stops
฿33,891Multiple Airlines
Sun 13 Sep - Thu 17 Sep
Qatar Airways Logo
06:00 - 07:45
STL
-
HKT
37h 45m
2 stops
Qatar Airways Logo
20:30 - 23:59
HKT
-
STL
39h 29m
2 stops
฿43,718Qatar Airways
Thu 24 Sep - Mon 28 Sep
Qatar Airways Logo
06:00 - 18:50
STL
-
HKT
48h 50m
2 stops
Qatar Airways Logo
20:30 - 23:40
HKT
-
STL
39h 10m
2 stops
฿44,926Qatar Airways
Mon 17 Aug - Mon 24 Aug
Cathay Pacific Logo
15:32 - 10:50
STL
-
HKT
31h 18m
2 stops
Cathay Pacific Logo
11:50 - 23:42
HKT
-
STL
47h 52m
2 stops
฿45,645Cathay Pacific
Fri 21 Aug - Mon 24 Aug
Multiple Airlines Logo
19:36 - 10:25
STL
-
CNX
26h 49m
2 stops
Multiple Airlines Logo
11:35 - 12:25
CNX
-
STL
36h 50m
2 stops
฿47,669Multiple Airlines
Wed 1 Jul - Thu 16 Jul
Cathay Pacific Logo
17:03 - 10:50
STL
-
HKT
53h 47m
2 stops
Cathay Pacific Logo
11:50 - 19:26
HKT
-
STL
43h 36m
2 stops
฿59,162Cathay Pacific
Booking Insights

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

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

Can I save money by flying with a stopover from St. Louis to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of ฿8,638, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Southeast Asia, 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 Southeast Asia is August, when tickets cost ฿16,684 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is ฿39,212 and ฿36,698 respectively.

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

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 Southeast Asia, 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 Southeast Asia, 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.

Good to know

Low seasonAugust
Cheapest flight฿20,276
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 12% lower on average.
Flight from St. Louis to Bangkok

FAQs - booking Southeast Asia flights

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

    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 Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 to Southeast Asia

Information on your arrival and departure airports