$452 Cheap Flights from St. Louis (STL) to Ho Chi Minh City (SGN)

View $452 flight on Sun, Feb 8, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN)

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Cheap Flights from St. Louis to Ho Chi Minh City (STL-SGN)

Prices were available within the past 7 days and start at $452 for one-way flights and $924 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 3 - Wed, Dec 3
STL
St. Louis
SGN
Ho Chi Minh City
$924 Roundtrip, found 4 hours ago
$924
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Nov 3 from St. Louis to Ho Chi Minh City, returning Wed, Dec 3, priced at $924 found 4 hours ago
United
Mon, Nov 3 - Wed, Dec 3
STL
St. Louis
SGN
Ho Chi Minh City
$924 Roundtrip, found 4 hours ago
$924
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Nov 3 from St. Louis to Ho Chi Minh City, returning Wed, Dec 3, priced at $924 found 4 hours ago
United
Mon, Nov 3 - Thu, Dec 11
STL
St. Louis
SGN
Ho Chi Minh City
$927 Roundtrip, found 4 hours ago
$927
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Nov 3 from St. Louis to Ho Chi Minh City, returning Thu, Dec 11, priced at $927 found 4 hours ago
United
Thu, Nov 27 - Tue, Dec 9
STL
St. Louis
SGN
Ho Chi Minh City
$928 Roundtrip, found 1 day ago
$928
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 27 from St. Louis to Ho Chi Minh City, returning Tue, Dec 9, priced at $928 found 1 day ago
United
Wed, Nov 12 - Wed, Nov 19
STL
St. Louis
SGN
Ho Chi Minh City
$931 Roundtrip, found 1 day ago
$931
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 12 from St. Louis to Ho Chi Minh City, returning Wed, Nov 19, priced at $931 found 1 day ago
United
Thu, Nov 13 - Thu, Nov 20
STL
St. Louis
SGN
Ho Chi Minh City
$931 Roundtrip, found 1 day ago
$931
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 13 from St. Louis to Ho Chi Minh City, returning Thu, Nov 20, priced at $931 found 1 day ago
Delta
Thu, Dec 4 - Thu, Dec 11
STL
St. Louis
SGN
Ho Chi Minh City
$940 Roundtrip, found 4 days ago
$940
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Dec 4 from St. Louis to Ho Chi Minh City, returning Thu, Dec 11, priced at $940 found 4 days ago
All Nippon Airways
Wed, Nov 5 - Wed, Nov 12
STL
St. Louis
SGN
Ho Chi Minh City
$952 Roundtrip, found 3 days ago
$952
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Wed, Nov 5 from St. Louis to Ho Chi Minh City, returning Wed, Nov 12, priced at $952 found 3 days ago
Cathay Pacific
Mon, Feb 9 - Tue, Mar 3
STL
St. Louis
SGN
Ho Chi Minh City
$991 Roundtrip, just found
$991
Roundtrip
just found
Select Cathay Pacific flight, departing Mon, Feb 9 from St. Louis to Ho Chi Minh City, returning Tue, Mar 3, priced at $991 just found
Japan Airlines
Wed, Nov 5 - Tue, Dec 23
STL
St. Louis
SGN
Ho Chi Minh City
$1,086 Roundtrip, found 4 hours ago
$1,086
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Wed, Nov 5 from St. Louis to Ho Chi Minh City, returning Tue, Dec 23, priced at $1,086 found 4 hours ago

Find the cheapest month to fly from St. Louis (STL) to Ho Chi Minh City (SGN)

November is typically the cheapest month to fly

From $956 - $1,503 per traveler.

Alternative airports near Ho Chi Minh City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tan Son Nhat Intl. SGN. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $1,007
SGN
Tan Son Nhat Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $1,007

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN) cost?
Secure a cheap one-way flight from $452 or cheap return flight from $924 from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN)?
The cheapest month to fly from STL to SGN is November, when there's less demand. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to SGN. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN)?
There are no daily nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from STL to SGN?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN)?
To touch down at Tan Son Nhat Intl. Airport (SGN) on time, pick a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN) last-minute?
Holding off until just before your departure to book a flight from STL to SGN often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Keep your travel schedule open for a better chance of scoring a bargain.
Is it cheaper to book a STL to SGN flight and hotel package?
Opting for a STL to SGN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Tan Son Nhat Intl. Airport (SGN)?
If you reserved your STL to SGN flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Tan Son Nhat Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Japan Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, Turkish Airlines, United
Roundtrip price
$923
Distance
8840 mi

Book with confidence

St. Louis to Ho Chi Minh City Flights

The cheapest times to fly from St. Louis to Ho Chi Minh City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Ho Chi Minh City are during the month of November. You can find some of the cheapest flights from St. Louis to Ho Chi Minh City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Ho Chi Minh City

Sunday is one of the best days to book for cheap flights from St. Louis to Ho Chi Minh City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Ho Chi Minh City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Ho Chi Minh City in 2025. You can also book with separate airlines for your outbound and return journeys, from $452 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Ho Chi Minh City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Ho Chi Minh City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Ho Chi Minh City Flights

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*Available to One Key members.