How long is the flight from St. Louis to Southeast Asia?

There are many flights that can get you from St. Louis to Southeast Asia in 39h 12m. Fly via American Airlines, United Airlines, or ANA to get the fastest option. The distance between St. Louis and Southeast Asia is about 8834 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

The cheapest airline one-way is Japan Airlines, with whom users have recently found tickets for as low as $508. However, be on the lookout for offers from ANA and Delta, as they are both options that can get you from St. Louis to Southeast Asia for a low price.

In terms of precipitation, rainfall in Southeast Asia ranges from 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Southeast Asia when rainfall is around 0.4 in.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

What are the most popular routes from St. Louis to Southeast Asia?

When deciding which route to take from St. Louis to Southeast Asia consider Lambert-St Louis - Ho Chi Minh City, Lambert-St Louis - Bangkok Suvarnabhumi or Lambert-St Louis - Manila Ninoy Aquino Intl as they are the most popular.

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

Before booking your flight from St. Louis to Southeast Asia check out the most popular airlines for this route: American Airlines, Air Canada or Finnair.

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

If you book a flight to Southeast Asia from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

Can I find deals for flights from St. Louis to Southeast Asia that include hotel bookings?

Yes. In addition to deals on St. Louis to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Southeast Asia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Southeast Asia.

Can I find deals for business class flights from St. Louis to Southeast Asia?

Yes. Cheapflights offers flight deals from St. Louis to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$417+ Cheap Flights from St. Louis to Southeast Asia

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Cheap flight deals from St. Louis to Southeast Asia

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$872 (Trip.com)
One-way from	$417 (Kiwi.com)
Popular in	June
Cheapest in	September
Average price	$1,176

Provider with most accurate pricing for Lambert-St Louis-Manila Ninoy Aquino Intl flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Manila Ninoy Aquino Intl flights.

Search Deals

From Lambert-St Louis to Southeast Asia

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One-way flight from Lambert-St Louis to Southeast Asia

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($262 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from St. Louis to Southeast Asia

Cheapest flights from St. Louis to Southeast Asia
Explore the most affordable flight options available from St. Louis to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2025.

Wed 11/54:35 pmSTL - SGN

3 stops41h 20mUnited Airlines

Wed 11/1211:05 pmSGN - STL

2 stops36h 40mUnited Airlines

Deal found 9/21

$872

Mon 11/1011:05 amSTL - SGN

2 stops45h 45mANA

Wed 12/1011:05 pmSGN - STL

2 stops26h 10mANA

Deal found 9/21

$919

Wed 11/55:58 pmSTL - HAN

2 stops39h 32mAmerican Airlines

Wed 11/1211:55 pmHAN - STL

2 stops46h 02mAmerican Airlines

Deal found 9/20

$920

Mon 11/35:24 pmSTL - SGN

3 stops40h 31mUnited Airlines

Wed 11/1911:05 pmSGN - STL

2 stops28h 20mUnited Airlines

Deal found 9/22

$924

Tue 11/46:43 pmSTL - SGN

3 stops39h 12mUnited Airlines

Tue 11/1111:05 pmSGN - STL

2 stops52h 20mUnited Airlines

Deal found 9/20

$930

Wed 12/37:00 amSTL - HAN

2 stops26h 30mAmerican Airlines

Tue 1/1311:55 pmHAN - STL

2 stops35h 32mAmerican Airlines

Deal found 9/20

$932

Tue 11/411:05 amSTL - SGN

2 stops45h 45mANA

Tue 11/1111:05 pmSGN - STL

2 stops29h 45mANA

Deal found 9/20

$944

Thu 11/276:00 amSTL - SGN

2 stops34h 50mJapan Airlines

Tue 12/211:45 pmSGN - STL

2 stops30h 05mJapan Airlines

Deal found 9/20

$946

Tue 11/411:05 amSTL - KUL

2 stops47h 10mANA

Tue 11/112:15 pmKUL - STL

2 stops41h 24mANA

Deal found 9/19

$951

Mon 11/33:23 pmSTL - SGN

2 stops25h 27mAmerican Airlines

Wed 11/1911:35 pmSGN - STL

2 stops27h 08mAmerican Airlines

Deal found 9/22

$967

Mon 9/297:23 amSTL - BKK

2 stops43h 47mJapan Airlines

Wed 10/158:05 amBKK - STL

2 stops24h 21mJapan Airlines

Deal found 9/20

$972

Sun 11/96:43 pmSTL - SGN

3 stops39h 12mUnited Airlines

Sun 11/236:00 amSGN - STL

3 stops29h 22mUnited Airlines

Deal found 9/21

$975

Best flights from St. Louis to Southeast Asia
Discover carefully curated flight deals from St. Louis to Southeast Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2025.

Wed 11/55:58 pmSTL - HAN

2 stops39h 32mAmerican Airlines

Wed 11/1211:55 pmHAN - STL

2 stops46h 02mAmerican Airlines

Deal found 9/20

$920

Mon 11/106:43 pmSTL - SGN

3 stops39h 12mUnited Airlines

Wed 12/1011:05 pmSGN - STL

2 stops33h 43mUnited Airlines

Deal found 9/21

$924

Tue 11/411:05 amSTL - KUL

2 stops47h 10mANA

Tue 11/112:15 pmKUL - STL

2 stops41h 24mANA

Deal found 9/19

$951

Wed 1/286:00 amSTL - BKK

2 stops29h 45mDelta

Tue 2/1012:55 amBKK - STL

2 stops35h 45mDelta

Deal found 9/20

$979

Mon 10/206:39 amSTL - MNL

2 stops27h 16mCathay Pacific

Mon 10/2710:50 amMNL - STL

2 stops25h 59mCathay Pacific

Deal found 9/21

$984

Tue 1/132:55 pmSTL - DAD

2 stops37h 20mMultiple Airlines

Thu 1/226:25 pmDAD - STL

2 stops56h 27mMultiple Airlines

Deal found 9/20

$1,019

Wed 10/226:33 amSTL - MNL

2 stops51h 17mEVA Air

Tue 10/283:40 amMNL - STL

2 stops57h 19mEVA Air

Deal found 9/22

$1,103

Tue 11/47:00 amSTL - MNL

2 stops36h 55mChina Airlines

Mon 11/103:35 amMNL - STL

2 stops49h 43mChina Airlines

Deal found 9/20

$1,110

Wed 11/56:00 amSTL - DPS

2 stops36h 15mQatar Airways

Tue 11/1112:30 amDPS - STL

2 stops33h 53mQatar Airways

Deal found 9/21

$1,119

Mon 11/36:00 amSTL - HKT

2 stops27h 10mKorean Air

Mon 11/1011:40 pmHKT - STL

2 stops36h 43mKorean Air

Deal found 9/21

$1,184

Mon 12/16:00 amSTL - HAN

2 stops27h 30mJapan Airlines

Wed 1/1411:55 pmHAN - STL

2 stops48h 13mJapan Airlines

Deal found 9/20

$1,224

Mon 2/25:00 pmSTL - SGN

2 stops39h 50mUnited Airlines

Tue 3/1711:05 pmSGN - STL

2 stops37h 22mUnited Airlines

Deal found 9/20

$967

Tue 1/276:30 amSTL - BKK

2 stops29h 15mDelta

Mon 2/912:55 amBKK - STL

2 stops35h 45mDelta

Deal found 9/20

$979

Mon 3/25:49 pmSTL - HKT

2 stops34h 46mCathay Pacific

Mon 3/96:35 pmHKT - STL

2 stops40h 34mCathay Pacific

Deal found 9/22

$994

Sat 11/87:00 amSTL - HKT

2 stops49h 10mMultiple Airlines

Sat 11/1510:55 pmHKT - STL

2 stops38h 04mMultiple Airlines

Deal found 9/22

$1,033

Mon 2/237:41 amSTL - SGN

3 stops49h 09mUnited Airlines

Tue 3/2411:05 pmSGN - STL

2 stops37h 22mUnited Airlines

Deal found 9/22

$967

Wed 1/286:30 amSTL - BKK

2 stops29h 15mDelta

Thu 2/129:40 amBKK - STL

2 stops26h 30mDelta

Deal found 9/20

$979

Sun 10/58:03 pmSTL - HKT

2 stops50h 47mCathay Pacific

Tue 10/1411:50 amHKT - STL

2 stops47h 36mCathay Pacific

Deal found 9/22

$1,000

Mon 3/92:55 pmSTL - DPS

2 stops34h 45mChina Airlines

Thu 3/123:45 pmDPS - STL

2 stops45h 11mChina Airlines

Deal found 9/21

$1,131

Fri 1/167:09 amSTL - SIN

2 stops27h 41mAmerican Airlines

Sat 1/318:15 amSIN - STL

2 stops28h 12mAmerican Airlines

Deal found 9/20

$1,133

Wed 10/226:33 amSTL - MNL

1 stop32h 32mMultiple Airlines

Wed 10/2911:10 amMNL - STL

2 stops34h 57mMultiple Airlines

Deal found 9/22

$1,035

Sun 1/253:11 pmSTL - SGN

3 stops42h 44mUnited Airlines

Tue 3/1711:05 pmSGN - STL

2 stops27h 13mUnited Airlines

Deal found 9/21

$970

Sat 2/2112:58 pmSTL - DPS

2 stops38h 22mQatar Airways

Sat 3/712:30 amDPS - STL

2 stops34h 18mQatar Airways

Deal found 9/20

$1,177

Mon 1/266:00 amSTL - BKK

2 stops29h 45mDelta

Thu 2/129:40 amBKK - STL

2 stops26h 30mDelta

Deal found 9/20

$979

Tue 11/46:00 amSTL - HKT

2 stops27h 10mKorean Air

Tue 11/1111:40 pmHKT - STL

2 stops36h 43mKorean Air

Deal found 9/19

$1,185

Sun 10/198:05 pmSTL - HKT

2 stops50h 45mCathay Pacific

Sun 10/2612:20 pmHKT - STL

2 stops47h 29mCathay Pacific

Deal found 9/22

$1,000

Mon 1/264:35 pmSTL - SGN

3 stops41h 20mUnited Airlines

Tue 3/3111:15 pmSGN - STL

2 stops34h 51mUnited Airlines

Deal found 9/21

$970

Sun 2/12:55 pmSTL - DAD

2 stops36h 30mChina Airlines

Sun 3/85:35 pmDAD - STL

2 stops32h 17mChina Airlines

Deal found 9/20

$1,183

Mon 10/66:00 amSTL - BKK

2 stops31h 05mDelta

Tue 11/411:15 pmBKK - STL

2 stops27h 07mDelta

Deal found 9/21

$979

Tue 11/47:00 amSTL - DAD

2 stops45h 15mMultiple Airlines

Tue 11/116:25 pmDAD - STL

2 stops57h 53mMultiple Airlines

Deal found 9/20

$1,077

Last-minute flights from St. Louis to Southeast Asia
Discover last-minute flight deals from St. Louis to Southeast Asia. Data last updated September 22, 2025 and is based on user searches.

Thu 9/256:20 amSTL - BKK

2 stops34h 20mJapan Airlines

Thu 10/98:05 amBKK - STL

2 stops24h 21mJapan Airlines

Deal found 9/20

$1,008

Mon 9/297:23 amSTL - BKK

2 stops43h 47mJapan Airlines

Wed 10/158:05 amBKK - STL

2 stops24h 21mJapan Airlines

Deal found 9/20

$972

Mon 9/296:30 pmSTL - SGN

2 stops33h 50mChina Airlines

Mon 10/135:30 pmSGN - STL

2 stops42h 33mChina Airlines

Deal found 9/20

$993

Tue 9/309:20 amSTL - BKK

2 stops31h 15mANA

Mon 10/61:55 pmBKK - STL

2 stops38h 33mANA

Deal found 9/22

$988

Sun 10/58:03 pmSTL - HKT

2 stops50h 47mCathay Pacific

Tue 10/1411:50 amHKT - STL

2 stops47h 36mCathay Pacific

Deal found 9/22

$1,000

Mon 10/66:00 amSTL - BKK

2 stops31h 05mDelta

Tue 11/411:15 pmBKK - STL

2 stops27h 07mDelta

Deal found 9/22

$979

Mon 10/68:05 amSTL - BKK

2 stops32h 30mUnited Airlines

Tue 11/44:55 pmBKK - STL

3 stops35h 55mUnited Airlines

Deal found 9/20

$999

Mon 10/206:39 amSTL - MNL

2 stops27h 16mCathay Pacific

Mon 10/2710:50 amMNL - STL

2 stops25h 59mCathay Pacific

Deal found 9/21

$984

Mon 10/208:42 amSTL - BKK

2 stops37h 18mCathay Pacific

Mon 10/277:15 pmBKK - STL

2 stops37h 11mCathay Pacific

Deal found 9/22

$994

Mon 10/208:42 amSTL - BKK

2 stops42h 28mJapan Airlines

Mon 10/278:05 amBKK - STL

2 stops41h 39mJapan Airlines

Deal found 9/22

$1,004

Mon 10/277:16 amSTL - HAN

2 stops27h 14mAmerican Airlines

Mon 11/311:55 pmHAN - STL

2 stops29h 52mAmerican Airlines

Deal found 9/21

$982

Wed 10/291:35 pmSTL - BKK

3 stops33h 50mUnited Airlines

Thu 11/204:55 pmBKK - STL

3 stops34h 30mUnited Airlines

Deal found 9/21

$998

One-way flights from St. Louis to Southeast Asia
Search for one-way flight options from St. Louis to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated September 22, 2025.

Tue 10/217:52 pmSTL - MNL

2 stops33h 48mMultiple Airlines

Deal found 9/21

$417

Sun 10/126:05 pmSTL - MNL

2 stops35h 35mMultiple Airlines

Deal found 9/21

$423

Sun 2/82:55 pmSTL - SGN

2 stops28h 30mMultiple Airlines

Deal found 9/21

$446

Tue 2/102:55 pmSTL - BKK

2 stops32h 05mMultiple Airlines

Deal found 9/20

$452

Tue 11/254:15 pmSTL - BKK

3 stops42h 55mMultiple Airlines

Deal found 9/19

$462

Fri 12/57:00 amSTL - MNL

2 stops37h 35mMultiple Airlines

Deal found 9/21

$462

Tue 10/217:52 pmSTL - CEB

3 stops38h 38mMultiple Airlines

Deal found 9/21

$464

Wed 11/197:45 pmSTL - SGN

3 stops50h 40mMultiple Airlines

Deal found 9/22

$467

Sat 10/184:33 pmSTL - MNL

3 stops44h 37mMultiple Airlines

Deal found 9/20

$475

Sat 9/277:55 pmSTL - MNL

3 stops43h 10mMultiple Airlines

Deal found 9/21

$476

Wed 1/142:55 pmSTL - DAD

2 stops32h 10mMultiple Airlines

Deal found 9/22

$478

Thu 10/308:40 pmSTL - HAN

3 stops37h 45mMultiple Airlines

Deal found 9/21

$486

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Wed 11/5

5:58 pm-10:30 pm

2 stops39h 32m

Hanoi Noibai

Wed 11/12

11:55 pm-8:57 am

2 stops46h 02m

$920

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 11/10

6:43 pm-10:55 pm

3 stops39h 12m

Ho Chi Minh City

Wed 12/10

11:05 pm-7:48 pm

2 stops33h 43m

$924

St. LouisKuala Lumpur

STL - KUL

STLKUL

Lambert-St Louis

Tue 11/4

11:05 am-12:15 am

2 stops47h 10m

Kuala Lumpur Intl

Tue 11/11

2:15 pm-5:39 pm

2 stops41h 24m

$951

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 2/2

5:00 pm-9:50 pm

2 stops39h 50m

Ho Chi Minh City

Tue 3/17

11:05 pm-12:27 am

2 stops37h 22m

$967

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 2/23

7:41 am-9:50 pm

3 stops49h 09m

Ho Chi Minh City

Tue 3/24

11:05 pm-12:27 am

2 stops37h 22m

$967

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Sun 1/25

3:11 pm-10:55 pm

3 stops42h 44m

Ho Chi Minh City

Tue 3/17

11:05 pm-2:18 pm

2 stops27h 13m

$970

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 1/26

4:35 pm-10:55 pm

3 stops41h 20m

Ho Chi Minh City

Tue 3/31

11:15 pm-10:06 pm

2 stops34h 51m

$970

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 1/28

6:00 am-12:45 am

2 stops29h 45m

Bangkok Suvarnabhumi

Tue 2/10

12:55 am-11:40 pm

2 stops35h 45m

$979

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 1/27

6:30 am-12:45 am

2 stops29h 15m

Bangkok Suvarnabhumi

Mon 2/9

12:55 am-11:40 pm

2 stops35h 45m

$979

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 1/28

6:30 am-12:45 am

2 stops29h 15m

Bangkok Suvarnabhumi

Thu 2/12

9:40 am-11:10 pm

2 stops26h 30m

$979

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/21

Showing 1-10 of 60 results

...

Best time to book a flight from St. Louis to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Southeast Asia

What is the cheapest month to book a flight from St. Louis to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Southeast Asia (average of $894). Flying from St. Louis to Southeast Asia in December is currently the most expensive (average of $1,495). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to YJX?

When flying from St. Louis to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Southeast Asia

Read through reviews of airlines operating flights from St. Louis to Southeast Asia, such as ANA, Japan Airlines, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

ANA

8.4

Very good

970 reviews

Reviews

1 / 20

10.0

Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

ANA

8.4

Very good

970 reviews

ANA

8.4

Very good

970 reviews

Reviews

1 / 20

10.0

Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Japan Airlines

8.3

Very good

1,560 reviews

ANA

8.4

Very good

970 reviews

Reviews

1 / 20

10.0

Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Delta

8.0

Very good

7,974 reviews

ANA

8.4

Very good

970 reviews

Reviews

1 / 20

10.0

Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Cathay Pacific

7.6

Good

1,008 reviews

ANA

8.4

Very good

970 reviews

Reviews

1 / 20

10.0

Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

United Airlines

7.4

Good

8,926 reviews

ANA

8.4

Very good

970 reviews

Reviews

1 / 20

10.0

Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Related info for your journey

What airport do you fly from for flights from St. Louis to Southeast Asia?
If you book a flight to Southeast Asia from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.
How long is the flight from St. Louis to Southeast Asia?
There are many flights that can get you from St. Louis to Southeast Asia in 39h 12m. Fly via American Airlines, United Airlines, or ANA to get the fastest option. The distance between St. Louis and Southeast Asia is about 8834 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from St. Louis to Southeast Asia one-way?
The cheapest airline one-way is Japan Airlines, with whom users have recently found tickets for as low as $508. However, be on the lookout for offers from ANA and Delta, as they are both options that can get you from St. Louis to Southeast Asia for a low price.
What are the most popular routes from St. Louis to Southeast Asia?
When deciding which route to take from St. Louis to Southeast Asia consider Lambert-St Louis - Ho Chi Minh City, Lambert-St Louis - Bangkok Suvarnabhumi or Lambert-St Louis - Manila Ninoy Aquino Intl as they are the most popular.
Can I find deals for flights from St. Louis to Southeast Asia that include hotel bookings?
Yes. In addition to deals on St. Louis to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Southeast Asia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Southeast Asia.
Can I find deals for business class flights from St. Louis to Southeast Asia?
Yes. Cheapflights offers flight deals from St. Louis to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Southeast Asia?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Southeast Asia (average of $894). Flying from St. Louis to Southeast Asia in December is currently the most expensive (average of $1,495). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Southeast Asia

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St. Louis to Haneda flights

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Springfield to Suvarnabhumi flights

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Columbia to Narita flights

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Top 10 airlines flying from St. Louis to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
Korean Air	Cheapest$761	Average$1,591	FlexibilityNo cancel fee	On-time81%
Qatar Airways	Cheapest$897	Average$1,421	FlexibilityNo cancel fee	On-time68%
American Airlines	Cheapest$903	Average$1,237	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$907	Average$1,523	FlexibilityNo cancel fee	On-time67%
Cathay Pacific	Cheapest$915	Average$1,404	FlexibilityNo cancel fee	On-time72%
Japan Airlines	Cheapest$942	Average$1,215	FlexibilityNo cancel fee	On-time79%
United Airlines	Cheapest$986	Average$1,338	FlexibilityNo cancel fee	On-time69%
ANA	Cheapest$987	Average$1,220	FlexibilityNo cancel fee	On-time80%
Delta	Cheapest$990	Average$1,600	FlexibilityNo cancel fee	On-timeN/A
EVA Air	Cheapest$1,193	Average$1,401	FlexibilityNo cancel fee	On-time74%

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$417+ Cheap flights from St. Louis (STL) to Southeast Asia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from St. Louis to Southeast Asia

Cheapest flights from St. Louis to Southeast AsiaExplore the most affordable flight options available from St. Louis to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2025.

Explore the most affordable flight options available from St. Louis to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2025.

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Find hourly flight availability from St. Louis to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 22, 2025.

Reviews of airlines servicing Southeast Asia

Read through reviews of airlines operating flights from St. Louis to Southeast Asia, such as ANA, Japan Airlines, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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Top 10 airlines flying from St. Louis to Southeast Asia

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Cheapest flights from St. Louis to Southeast Asia
Explore the most affordable flight options available from St. Louis to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2025.