STL - BKK

$515 Find Cheap Flights from St. Louis to Bangkok - 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 Bangkok departing on 9/19. 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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Everything you should know

Cheapest round-trip
$1,037
Typical prices: $1,076-$1,347
Multiple Airlines
Mon 10/12Wed 10/21
STL - BKK • 2 stops
Cheapest one-way
$515
Typical prices: $526-$608
Multiple Airlines
Sat 9/19
STL - BKK • 3 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Bangkok. You'll need at least 2 connections.
Insights
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Insights
When to travel
August
Cheapest • 25% price drop
March
Most popular
Good to know
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Good to know
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Flight Deals

Cheap Flights from St. Louis to Bangkok (STL-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Bangkok 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 round-trip flight deals from St. Louis to Bangkok

Mon, Oct 12 - Wed, Oct 21
Multiple Airlines Logo
5:00 am - 11:55 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
30h 55m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
3:55 pm - 12:35 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
32h 40m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl
$1,037Multiple Airlines
Sat, Oct 10 - Tue, Oct 20
Multiple Airlines Logo
1:06 pm - 6:45 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
29h 39m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
3:55 pm - 3:51 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
35h 56m2 stops Abu Dhabi Zayed Intl Charlotte Douglas
$1,037Multiple Airlines
Sun, Nov 1 - Mon, Nov 23
Qatar Airways Logo
1:20 pm - 6:15 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
27h 55m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
2:00 am - 6:22 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
29h 22m2 stops Doha Hamad Intl Chicago O'Hare Intl
$1,065Qatar Airways
Mon, Nov 2 - Mon, Nov 23
Qatar Airways Logo
11:32 am - 6:15 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
29h 43m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
3:00 am - 7:25 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
29h 25m2 stops Doha Hamad Intl Chicago O'Hare Intl
$1,065Qatar Airways
Sun, Jan 10 - Sun, Feb 28
Cathay Pacific Logo
4:57 pm - 10:40 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
28h 43m2 stops Dallas/Fort Worth Hong Kong Intl
Cathay Pacific Logo
7:55 am - 11:34 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
28h 39m2 stops Hong Kong Intl Dallas/Fort Worth
$1,175Cathay Pacific
Fri, Sep 18 - Sun, Oct 4
Cathay Pacific Logo
11:01 am - 12:10 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
25h 09m2 stops Chicago O'Hare Intl Hong Kong Intl
Cathay Pacific Logo
11:00 am - 11:43 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
24h 43m2 stops Hong Kong Intl Dallas/Fort Worth
$1,238Cathay Pacific
Sat, Oct 10 - Tue, Oct 20
United Airlines Logo
5:36 pm - 9:35 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
27h 59m3 stops Chicago O'Hare Intl Los Angeles Los Angeles Hong Kong Intl
United Airlines Logo
9:35 am - 6:43 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
45h 08m2 stops Tokyo Haneda San Francisco
$1,352United Airlines
Mon, Oct 12 - Wed, Oct 21
United Airlines Logo
9:00 am - 9:35 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
36h 35m3 stops Denver Intl Los Angeles Los Angeles Hong Kong Intl
United Airlines Logo
3:45 pm - 10:10 amBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
30h 25m3 stops Hong Kong Intl Los Angeles Los Angeles Houston George Bush Intcntl
$1,362United Airlines
Sat, Oct 10 - Tue, Oct 20
ANA Logo
9:00 am - 10:15 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
25h 15m2 stops Denver Intl Tokyo Narita
ANA Logo
3:45 pm - 12:40 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
32h 55m1 stop Los Angeles Los Angeles
$1,425ANA
Fri, Oct 9 - Thu, Oct 22
ANA Logo
1:29 pm - 4:35 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
27h 06m2 stops Chicago O'Hare Intl Tokyo Haneda
ANA Logo
3:45 pm - 12:40 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
32h 55m1 stop Los Angeles Los Angeles
$1,573ANA
Booking Insights

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

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

How much is a round-trip flight from St. Louis to Bangkok Suvarnabhumi Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Bangkok Suvarnabhumi Airport departing in October.

Flight prices are typical for this route right now.

Flights to Bangkok Suvarnabhumi Airport from St. Louis usually cost between $946 and $1,377 in October.
The lowest price found in the past 5 days was $1,037 on Multiple Airlines (Oct 10-Oct 20).

What is the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Bangkok Suvarnabhumi Airport, 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 Bangkok Suvarnabhumi Airport is August, where tickets cost $979 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,733 and $1,485 respectively.

How far in advance should I book a flight from St. Louis to Bangkok Suvarnabhumi Airport?

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 Bangkok Suvarnabhumi Airport, 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 the flight from St. Louis to Bangkok Suvarnabhumi Airport, you should book around 1 week before departure. 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

$515
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to Bangkok

When to book flights from St. Louis to Bangkok

Are your dates flexible? Find out the best times to travel from St. Louis to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Bangkok flights

  • What is the cheapest flight from St. Louis to Bangkok Suvarnabhumi Airport?

    In the last 5 days, the lowest price for a flight from St. Louis to Bangkok Suvarnabhumi Airport was $541 for a one-way ticket and $1,037 for a round-trip.

  • Do I need a passport to fly between St. Louis and Bangkok?

    A passport is required to fly from St. Louis to Bangkok.

  • Which airports will I be using when flying from St. Louis to Bangkok?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Bangkok, also known as Bangkok Suvarnabhumi.

  • Which aircraft models fly most regularly from St. Louis to Bangkok?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Bangkok?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between St. Louis and Bangkok, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Bangkok, EVA Air or Japan Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bangkok are EVA Air and Japan Airlines. With an average price for the route of $1,456 and an overall rating of 8.5, EVA Air is the most popular choice. Japan Airlines is also a great choice for the route, with an average price of $1,045 and an overall rating of 8.3.

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

    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 Bangkok.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bangkok with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BKK can sometimes prove cheaper using this method.

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

    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 to Bangkok from St. Louis 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 Bangkok

Information on your arrival and departure airports

St. Louis (STL)
Suvarnabhumi (BKK)