Cheap flights from St. Louis (STL) to Bangkok

STL — BKK
Jan 31 — Feb 71

How to find the cheapest flight from St. Louis (STL) to Bangkok

All the information you need to plan the best STL to TH1 flight in 2023: compare St. Louis to Bangkok flight prices with the expected peak season, weather and rainfall in Bangkok.

STL - BKK

Price

$1,056 - $1,830

BKK

Temperature

78.8 - 86 °F

BKK

Rainfall

0.4 - 12.6 inches

Popular inJuneHigh demand for flights, 25% potential price rise
Cheapest inMarchBest time to find cheap flights, 23% potential price drop
Round-trip from$1,056From Lambert-St Louis to Bangkok
One-way from$1,008One-way flight from Lambert-St Louis to Bangkok

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

Travelers have found it’s best to book a flight 61 days in advance to save up to 10% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Bangkok 1-2 weeks in advance for as low as $1,461, or $1,524 for flights within the next 24 hours.

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

March can be a great time to fly to Bangkok from St. Louis with a flight ticket averaging about $1,376. Cheapflights users have found deals in the month of March for as cheap as $968. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from St. Louis to Bangkok (STL - BKK)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Bangkok as you normally would.

Cheap flights from St. Louis to Bangkok in January, February 2023

The best prices found for STL to Bangkok flights for January, February
Feb 23 - Mar 2
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

27h 35m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

28h 50m
$1,068

Multiple Airlines

Pick Dates

Deal found 1/24

Feb 23 - Mar 2
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

33h 00m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

28h 50m
$1,093

Japan Airlines

Pick Dates

Deal found 1/24

Feb 23 - Mar 22
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

27h 35m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

27h 54m
$1,094

Multiple Airlines

Pick Dates

Deal found 1/24

St. Louis to Bangkok 2023 flight deals

Cheap flights to Bangkok from St. Louis found for this year
Oct 24 - Nov 4
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

27h 31m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

47h 15m
$1,058

Finnair

Pick Dates

Deal found 1/23

Oct 3 - Nov 28
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

33h 25m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

29h 30m
$1,066

Japan Airlines

Pick Dates

Deal found 1/24

Nov 1 - Nov 15
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

36h 50m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

28h 36m
$1,067

Multiple Airlines

Pick Dates

Deal found 1/24

Cheap ANA flights from St. Louis to Bangkok

May 5 - May 12
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

29h 04m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

35h 35m
$1,205

ANA

Pick Dates

Deal found 1/25

Mar 8 - Mar 22
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

40h 15m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

28h 42m
$1,467

ANA

Pick Dates

Deal found 1/25

Cheap Japan Airlines flights from St. Louis to Bangkok

Feb 23 - Mar 2
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

33h 00m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

28h 50m
$1,093

Japan Airlines

Pick Dates

Deal found 1/24

Feb 22 - Mar 3
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

33h 16m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

50h 45m
$1,293

Japan Airlines

Pick Dates

Deal found 1/23

Feb 13 - Feb 23
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

27h 35m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

28h 01m
$1,341

Japan Airlines

Pick Dates

Deal found 1/23

Last minute flights from St. Louis to Bangkok

Late deals on return flights to Bangkok from St. Louis, departing today and this week
Jan 31 - Feb 13
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

41h 50m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

41h 48m
$1,380

American Airlines

Pick Dates

Deal found 1/25

Jan 31 - Feb 13
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

36h 20m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

52h 50m
$1,419

American Airlines

Pick Dates

Deal found 1/25

Feb 1 - Apr 6
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

41h 50m
BKK

Bangkok Suvarnabhumi

STL

Lambert-St Louis

2 stops

51h 48m
$1,423

American Airlines

Pick Dates

Deal found 1/25

One-way flights to Bangkok from St. Louis

The cheapest one-way flights from St. Louis to Bangkok
Feb 6
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

26h 35m
$762

American Airlines

Pick Dates

Deal found 1/23

Jul 19
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

2 stops

47h 20m
$766

American Airlines

Pick Dates

Deal found 1/25

Feb 6
STL

Lambert-St Louis

BKK

Bangkok Suvarnabhumi

3 stops

57h 09m
$861

Multiple Airlines

Pick Dates

Deal found 1/23

Reviews of Airlines Servicing Bangkok

ANA
8.5
Very good
26 reviews

Food

7.9

Overall

8.5

Boarding

8.6

Entertainment

8.2

Crew

8.5

Comfort

8.3

Reviews

1 / 9

Sorry the review I just posted was for this flight which was the long haul flight. The planes were nice and that’s about it. No 2 full service meals, only a little tiny vegetable wrap an hour into the flight. Nothing else until the last 2 hours which was the only meal served. Terrible at that. Also no amenity kits were given. Not even a toothbrush. No snacks or nuts in between. Just an awful experience with a mediocre crew. Very disappointed in this supposed 5 star airline according to Skytrax.

ANA
8.5
Very good
26 reviews
ANA
8.5
Very good
26 reviews

Food

7.9

Overall

8.5

Boarding

8.6

Entertainment

8.2

Crew

8.5

Comfort

8.3

Reviews

1 / 9

Sorry the review I just posted was for this flight which was the long haul flight. The planes were nice and that’s about it. No 2 full service meals, only a little tiny vegetable wrap an hour into the flight. Nothing else until the last 2 hours which was the only meal served. Terrible at that. Also no amenity kits were given. Not even a toothbrush. No snacks or nuts in between. Just an awful experience with a mediocre crew. Very disappointed in this supposed 5 star airline according to Skytrax.

Japan Airlines
7.8
Good
164 reviews
ANA
8.5
Very good
26 reviews

Food

7.9

Overall

8.5

Boarding

8.6

Entertainment

8.2

Crew

8.5

Comfort

8.3

Reviews

1 / 9

Sorry the review I just posted was for this flight which was the long haul flight. The planes were nice and that’s about it. No 2 full service meals, only a little tiny vegetable wrap an hour into the flight. Nothing else until the last 2 hours which was the only meal served. Terrible at that. Also no amenity kits were given. Not even a toothbrush. No snacks or nuts in between. Just an awful experience with a mediocre crew. Very disappointed in this supposed 5 star airline according to Skytrax.

United Airlines
7.6
Good
1,142 reviews
ANA
8.5
Very good
26 reviews

Food

7.9

Overall

8.5

Boarding

8.6

Entertainment

8.2

Crew

8.5

Comfort

8.3

Reviews

1 / 9

Sorry the review I just posted was for this flight which was the long haul flight. The planes were nice and that’s about it. No 2 full service meals, only a little tiny vegetable wrap an hour into the flight. Nothing else until the last 2 hours which was the only meal served. Terrible at that. Also no amenity kits were given. Not even a toothbrush. No snacks or nuts in between. Just an awful experience with a mediocre crew. Very disappointed in this supposed 5 star airline according to Skytrax.

American Airlines
7.4
Good
1,666 reviews
ANA
8.5
Very good
26 reviews

Food

7.9

Overall

8.5

Boarding

8.6

Entertainment

8.2

Crew

8.5

Comfort

8.3

Reviews

1 / 9

Sorry the review I just posted was for this flight which was the long haul flight. The planes were nice and that’s about it. No 2 full service meals, only a little tiny vegetable wrap an hour into the flight. Nothing else until the last 2 hours which was the only meal served. Terrible at that. Also no amenity kits were given. Not even a toothbrush. No snacks or nuts in between. Just an awful experience with a mediocre crew. Very disappointed in this supposed 5 star airline according to Skytrax.

Cathay Pacific
6.5
Okay
67 reviews
ANA
8.5
Very good
26 reviews

Food

7.9

Overall

8.5

Boarding

8.6

Entertainment

8.2

Crew

8.5

Comfort

8.3

Reviews

1 / 9

Sorry the review I just posted was for this flight which was the long haul flight. The planes were nice and that’s about it. No 2 full service meals, only a little tiny vegetable wrap an hour into the flight. Nothing else until the last 2 hours which was the only meal served. Terrible at that. Also no amenity kits were given. Not even a toothbrush. No snacks or nuts in between. Just an awful experience with a mediocre crew. Very disappointed in this supposed 5 star airline according to Skytrax.

Related info for your journey

Useful info, stats and facts about St. Louis to Bangkok flights.

What airport do you fly from for flights from St. Louis to Bangkok?

Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Bangkok. You should not have trouble finding flights to Bangkok from Lambert-St Louis; the airport handles an average of 0 outbound flights to Bangkok per day. You should also have plenty of airline options to choose from since 12 airlines have flights from the St. Louis airport to Bangkok. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

Which airlines flying from Lambert-St Louis to Bangkok have flexible cancellations due to COVID-19?

American Airlines, Japan Airlines, and Korean Air are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from St. Louis to Bangkok for under $1,100 on Cheapflights?

Yes, there are multiple flights from St. Louis to Bangkok for under $1,100. The cheapest flight booked recently is on Multiple Airlines for just $1,068, but on average you can expect to pay $1,291.

Are there last-minute flights available from St. Louis to Bangkok for under $1,400?

There are currently 20+ open flights from St. Louis to Bangkok within the next 7 days for less than $1,400.

What are the cheapest airlines flying from St. Louis to Bangkok round-trip?

Cheapflights users have booked flights from St. Louis to Bangkok round-trip from $1,093. Other airlines that can offer you cheap pricing are ANA, from $1,205, and American Airlines, from $1,236. Japan Airlines is priced at 20% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from St. Louis to Bangkok one-way?

For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $762. Users have also found prices from $1,207 and $1,315 on United Airlines and Cathay Pacific, respectively.

What are the most popular airlines that fly from St. Louis to Bangkok?

Undisclosed Carrier, American Airlines and Air Canada are the most popular airlines when flying from St. Louis to Bangkok.

What are the cheapest flights from St. Louis to Bangkok?

Looking at all options, your cheapest flight can be booked for $859. While the most popular route (Lambert-St Louis - Bangkok Suvarnabhumi) can be booked for $1,217 on average our data indicates $3,100 when flying from St. Louis to Bangkok.

Alternative routes for St. Louis to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from St. Louis to Bangkok

The chart below displays the airlines Cheapflights users traveling from St. Louis to Bangkok choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
FinnairCheapest$912Average$1,145FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Finnair flights
Korean AirCheapest$914Average$1,412FlexibilityNo cancel feeOn-time81%COVID-19 safety
Search Korean Air flights
ANACheapest$994Average$1,351FlexibilityNo cancel feeOn-time80%COVID-19 safety
Search ANA flights
American AirlinesCheapest$1,008Average$1,340FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
LufthansaCheapest$1,025Average$1,122FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Lufthansa flights
United AirlinesCheapest$1,032Average$1,443FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
Japan AirlinesCheapest$1,037Average$1,410FlexibilityNo cancel feeOn-time79%COVID-19 safety
Search Japan Airlines flights
Qatar AirwaysCheapest$1,040Average$1,292FlexibilityNo cancel feeOn-time68%COVID-19 safety
Search Qatar Airways flights
DeltaCheapest$1,179Average$1,949FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
Air CanadaCheapest$1,364Average$1,753FlexibilityNo cancel feeOn-time67%COVID-19 safety
Search Air Canada flights
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