$497+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Feb 25 — Mar 41
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Southeast Asia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Southeast Asia
Keep the following information in mind while searching for St. Louis to Southeast Asia flight deals. Data was last updated February 20, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $999 (Justfly.com) |
One-way from | $497 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $1,281 |
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 February 20, 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 February 20, 2025.
This Gotogate deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:27 pmSTL - SGN
2 stops43h 58mANA
Wed 10/2911:05 pmSGN - STL
2 stops25h 15mANA
Deal found 2/19![ANA logo]()
$990
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:00 amSTL - SGN
2 stops29h 15mDelta
Tue 5/201:55 pmSGN - STL
2 stops43h 38mDelta
Deal found 2/19![Delta logo]()
$991
This United deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:00 amSTL - SGN
2 stops25h 25mUnited Airlines
Sun 10/1210:45 pmSGN - STL
2 stops36h 50mUnited Airlines
Deal found 2/19![United Airlines logo]()
$996
This Ovago deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:00 amSTL - BKK
2 stops48h 20mQatar Airways
Tue 12/93:00 amBKK - STL
2 stops33h 56mQatar Airways
Deal found 2/19![Qatar Airways logo]()
$1,068
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:55 pmSTL - SGN
2 stops31h 40mMultiple Airlines
Tue 11/181:55 amSGN - STL
2 stops48h 57mMultiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,072
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:27 pmSTL - BKK
2 stops27h 08mANA
Wed 9/39:35 pmBKK - STL
2 stops31h 00mANA
Deal found 2/19![ANA logo]()
$1,090
This United deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/114:45 pmSTL - SIN
2 stops36h 40mUnited Airlines
Wed 5/218:40 pmSIN - STL
3 stops38h 35mUnited Airlines
Deal found 2/19![United Airlines logo]()
$1,097
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/309:50 amSTL - BKK
2 stops25h 10mJapan Airlines
Mon 10/612:25 amBKK - STL
2 stops34h 28mJapan Airlines
Deal found 2/19![Japan Airlines logo]()
$1,100
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:50 amSTL - BKK
2 stops26h 40mDelta
Wed 4/99:40 pmBKK - STL
2 stops37h 24mDelta
Deal found 2/19![Delta logo]()
$1,104
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:00 amSTL - MNL
2 stops42h 55mMultiple Airlines
Mon 3/1710:55 amMNL - STL
2 stops40h 30mMultiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,108
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:30 amSTL - BKK
2 stops29h 40mUnited Airlines
Thu 12/189:25 amBKK - STL
2 stops24h 45mUnited Airlines
Deal found 2/18![United Airlines logo]()
$1,110
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/267:04 amSTL - BKK
2 stops27h 31mAmerican Airlines
Wed 3/58:05 amBKK - STL
2 stops28h 03mAmerican Airlines
Deal found 2/19![American Airlines logo]()
$1,116
Find flights from St. Louis to Southeast Asia within your budget
Customize your flight search to find flights from St. Louis to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
Fly from
St. Louis
Fly to
Southeast Asia
Route
Depart
Return
Price
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Tue 4/15
6:00 am-11:15 pm
2 stops29h 15m
Ho Chi Minh City
Tue 5/20
1:55 pm-9:33 pm
2 stops43h 38m
$991
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Wed 4/16
9:39 am-11:45 pm
2 stops26h 06m
Ho Chi Minh City
Tue 4/29
10:45 pm-12:20 pm
2 stops49h 35m
$999
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/20
3:40 pm-9:25 pm
2 stops41h 45m
Ho Chi Minh City
Thu 5/22
7:00 am-10:15 pm
3 stops27h 15m
$1,005
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 5/11
4:45 pm-6:25 pm
2 stops36h 40m
Singapore Changi
Wed 5/21
9:00 am-4:52 pm
1 stop20h 52m
$1,097
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 3/26
6:50 am-9:30 pm
2 stops26h 40m
Bangkok Suvarnabhumi
Wed 4/9
9:40 pm-11:04 pm
2 stops37h 24m
$1,104
St. LouisManila
STL - MNL
STLMNL
Lambert-St Louis
Tue 3/4
7:00 am-3:55 pm
2 stops42h 55m
Manila Ninoy Aquino Intl
Mon 3/17
10:55 am-2:25 pm
2 stops40h 30m
$1,108
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 2/26
7:04 am-11:35 pm
2 stops27h 31m
Bangkok Suvarnabhumi
Wed 3/5
8:05 am-11:08 pm
2 stops28h 03m
$1,116
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Tue 2/25
7:00 am-11:35 pm
2 stops27h 35m
Bangkok Suvarnabhumi
Sun 3/2
12:55 am-11:08 pm
2 stops35h 13m
$1,124
St. LouisHanoi
STL - HAN
STLHAN
Lambert-St Louis
Wed 4/16
3:11 pm-11:05 am
2 stops31h 54m
Hanoi Noibai
Tue 4/29
12:05 pm-11:59 pm
2 stops47h 54m
$1,128
St. LouisManila
STL - MNL
STLMNL
Lambert-St Louis
Wed 3/19
1:45 pm-6:50 am
2 stops28h 05m
Manila Ninoy Aquino Intl
Thu 4/3
8:40 am-9:56 am
2 stops38h 16m
$1,133
Showing 1-10 of 52 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.
Travel insights for flights from St. Louis to Southeast Asia
Get recent, data-driven insights about flights from St. Louis to Southeast Asia including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from St. Louis to Southeast Asia?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Southeast Asia (average of $976). Flying from St. Louis to Southeast Asia in June is currently the most expensive (average of $1,580). 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?
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 February 20, 2025.
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.
Rainfall in Southeast Asia by month
Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.
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.
Temperature in Southeast Asia by month
Plan your trip to Southeast Asia by taking into account the average temperature totals by month.
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).
Reviews of airlines servicing Southeast Asia
Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated February 20, 2025.
Read reviews from past customers who have flown ANA, Korean Air and Japan Airlines from St. Louis to Southeast Asia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Food
7.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2025
MNL - HND
Crew
8.7
Food
7.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2025
MNL - HND
Crew
8.7
Food
7.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2025
MNL - HND
Crew
8.7
Food
7.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2025
MNL - HND
Crew
8.7
Food
7.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2025
MNL - HND
Crew
8.7
Food
7.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2025
MNL - HND
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for St. Louis to Southeast Asia
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from St. Louis to Southeast Asia
Discover the top 10 airlines that operate flights from St. Louis to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$244 | Average$1,207 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$984 | Average$1,902 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,023 | Average$1,302 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,034 | Average$1,419 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,065 | Average$1,198 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,067 | Average$1,427 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$1,068 | Average$1,563 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,213 | Average$1,460 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$1,249 | Average$1,579 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,272 | Average$1,796 | FlexibilityNo cancel fee | On-time68% |