STL - SGN

$487 Find Cheap Flights from St. Louis to Ho Chi Minh City

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 Ho Chi Minh City departing on 11/9. 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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These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Ho Chi Minh City.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Ho Chi Minh City.
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Flight Deals

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

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

Tue, Jan 20 - Tue, Feb 3
United Airlines Logo
8:05 am - 9:50 pmSTL-SGN
48h 45m2 stops
United Airlines Logo
11:05 pm - 2:30 pmSGN-STL
28h 25m2 stops
$906United Airlines
Find Deal
Tue, Jan 20 - Tue, Feb 3
United Airlines Logo
4:35 pm - 10:55 pmSTL-SGN
41h 20m3 stops
United Airlines Logo
11:05 pm - 12:29 pmSGN-STL
26h 24m2 stops
$910United Airlines
Find Deal
Mon, Jan 5 - Wed, Jan 14
United Airlines Logo
8:05 am - 9:50 pmSTL-SGN
48h 45m2 stops
United Airlines Logo
11:05 pm - 10:52 amSGN-STL
48h 47m2 stops
$912United Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 17
Cathay Pacific Logo
9:36 am - 6:35 pmSTL-SGN
43h 59m2 stops
Cathay Pacific Logo
11:35 am - 10:58 pmSGN-STL
24h 23m2 stops
$940Cathay Pacific
Find Deal
Sun, Feb 1 - Sun, Mar 8
Cathay Pacific Logo
6:44 pm - 6:35 pmSTL-SGN
58h 51m2 stops
Cathay Pacific Logo
11:35 am - 4:57 pmSGN-STL
42h 22m2 stops
$946Cathay Pacific
Find Deal
Mon, Jan 12 - Mon, Apr 27
Multiple Airlines Logo
7:04 am - 10:35 amSTL-SGN
38h 31m2 stops
Multiple Airlines Logo
6:20 pm - 11:24 pmSGN-STL
41h 04m2 stops
$952Multiple Airlines
Find Deal
Mon, Jan 26 - Tue, Mar 31
Multiple Airlines Logo
7:04 am - 12:20 amSTL-SGN
28h 16m2 stops
Multiple Airlines Logo
6:20 pm - 11:09 pmSGN-STL
40h 49m2 stops
$961Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 21
Delta Logo
6:15 am - 11:20 pmSTL-SGN
28h 05m2 stops
Delta Logo
2:05 pm - 10:16 pmSGN-STL
45h 11m2 stops
$965Delta
Find Deal
Thu, Dec 4 - Fri, Dec 19
Delta Logo
6:15 am - 11:20 pmSTL-SGN
28h 05m2 stops
Delta Logo
2:05 pm - 10:16 pmSGN-STL
45h 11m2 stops
$980Delta
Find Deal
Mon, Feb 23 - Mon, Mar 16
EVA Air Logo
2:55 pm - 11:35 amSTL-SGN
31h 40m2 stops
EVA Air Logo
1:55 am - 1:52 pmSGN-STL
47h 57m2 stops
$999EVA Air
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $906 (round-trip)
ANA
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 4% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 20% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$906
Overall average: $1,191
United Airlines
Tue 1/20Tue 2/3
STL - SGN • 2 stops
Cheapest one-way
$487
Typical prices: $535-$716
United Airlines
Sun 11/9
STL - SGN • 3 stops
Start a new search
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We hope you love your trip to Ho Chi Minh City!
Booking Insights

KAYAK's insights & trends for St. Louis to Ho Chi Minh City flights

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

What’s the cheapest day of the week to fly from St. Louis to Ho Chi Minh City?

The average price of all round-trip flights from St. Louis to Ho Chi Minh City clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Ho Chi Minh City, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

What is the cheapest month to fly from St. Louis to Ho Chi Minh City?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Ho Chi Minh City, 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 Ho Chi Minh City is November, where tickets cost $1,009 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,745 and $1,611 respectively.

How far in advance should I book a flight from St. Louis to Ho Chi Minh City?

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 Ho Chi Minh City, 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 Ho Chi Minh City, you should book around 4 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$487
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from St. Louis to Ho Chi Minh City

When to book flights from St. Louis to Ho Chi Minh City

Are your dates flexible? Find out the best times to travel from St. Louis to Ho Chi Minh City 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 flights from St. Louis to Ho Chi Minh City

  • What is the cheapest flight from St. Louis to Ho Chi Minh City?

    In the last 3 days, the lowest price for a flight from St. Louis to Ho Chi Minh City was $487 for a one-way ticket and $906 for a round-trip.

  • Do I need a passport to fly between St. Louis and Ho Chi Minh City?

    Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Ho Chi Minh City.

  • Which aircraft models fly most regularly from St. Louis to Ho Chi Minh City?

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

  • Which airline alliances offer flights from St. Louis to Ho Chi Minh City?

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

  • What is the most popular layover when flying to Ho Chi Minh City from St. Louis?

    Incheon is the most popular layover city among KAYAK users traveling from St. Louis to Ho Chi Minh City.

  • Which is the best airline for flights from St. Louis to Ho Chi Minh City, ANA or Korean Air?

    The two airlines most popular with KAYAK users for flights from St. Louis to Ho Chi Minh City are ANA and Korean Air. With an average price for the route of $1,075 and an overall rating of 8.4, ANA is the most popular choice. Korean Air is also a great choice for the route, with an average price of $1,313 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from St. Louis to Ho Chi Minh City?

    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 Ho Chi Minh City.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ho Chi Minh City 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 Ho Chi Minh City?

    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 Ho Chi Minh City with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SGN 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 Ho Chi Minh City?

    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 Ho Chi Minh City from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from St. Louis to Ho Chi Minh City

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Ho Chi Minh City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Ho Chi Minh City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
ANAOverall score based on 996 reviews
7.8Food
8.2Comfort
7.9Entertainment
8.7Crew
8.6Boarding
Airline reviews

Checking in via an alliance partner, even a foreign one should get TSA Precheck printed on your boarding pass. The paper copy issued by ANA didn’t show it. I couldn’t get my digital copy due to some technical issue arising because I checked in with ANA. The kiosks at SFO similarly threw an error. The only way I could have gotten a new copy of my boarding pass was from the UA counter and lines were nearly as long as TSA so I bit the bullet and went through the regular TSA line. If UA wants my business, they need to improve that process.

8.0 ExcellentEric, Oct 2025SFO - SLC
Read more ANA reviews

Checking in via an alliance partner, even a foreign one should get TSA Precheck printed on your boarding pass. The paper copy issued by ANA didn’t show it. I couldn’t get my digital copy due to some technical issue arising because I checked in with ANA. The kiosks at SFO similarly threw an error. The only way I could have gotten a new copy of my boarding pass was from the UA counter and lines were nearly as long as TSA so I bit the bullet and went through the regular TSA line. If UA wants my business, they need to improve that process.

Suite lounge in Honolulu is very exclusive and boarding from the lounge into the plane is unique. First suites were huge and comfortable. Japanese meal is like a high end omakase meal. All the staff were very kind and provided sophisticated service. Fast Track upon landing was appreciated but not needed this time because immigration was so empty and easy.

I like the service very much. The food just okay but maybe different culture who like, who don't like.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

Luckily I just tried to sleep. But the entertainment system was awkward to operate. I hate all this stuff with apps and adding it to your phone and all. It is a nuisance. I would prefer a good magazine or newspaper in the pocket in front of me or available.

One of the best 14 hour flights I've ever had. Crew was friendly throughout which can be difficult on longer flights. The crew being kind and respectful is very important for me. Plane felt clean and I was able to get some well needed uninterrupted sleep. I put them slightly above Cathay Pacific as far as cleanliness the only down side was a lack of entertainment selections, but hey I am an American taking a trip on a Japanese airline so I cannot complain. Thank you ANA and the Tokyo airport all very friendly. Will see you soon

Poor. We weren’t able to check in online (for several hours until we gave up) for no apparent reasons although our passports were loaded successfully. When we were at the airport check-in, a rep helped us at the kiosk but she disregarded the KTN provided to her so we had to come back for it after being questioned by the TSA person…

The seat was uncomfortable and seemed to be on its last days. Loose and sloppy

I traveled business class from Lax to Narita flight Jl61. The crew was attentive and polite. Food was good quality and service was as it should be. Narita to Bengaluru Jl753was another story in business class. The cabin was darkened for the 9hr:30min flight, food was mediocre, service was below standard and crew can't speak English to save their lives. When you ask for noodles soup from Ala carte they gave cup of noodles while Lax to Narita i was served the best Ramen noodles in a big bowl. Why the disparity on this leg of the journey.....or is it because there were mostly Indian passengers and it really did not matter to Jal to bother as its a poor country and Indians refrain from speaking up? A good airline but differentiation like this brings their reputation and business down.

put me in front row, screen was tiny, movie slection wasnt very good will be flying back on another airlines

Japan Airlines was excellent as usual once on the plane. Cabin crew was wonderful as usual. Boarding was solid on the Honolulu leg. For Thai Airways the boarding was less organized. I was in an earlier group but they weren’t clear with the numbers or instructions. Flight crew from Japan to Thailand was very good.

Terrible. Our flight was delayed by 15 hours. We lost a full day of our vacation.

Not good. The flight from LAX to Tokyo was delayed 15 hours.

highly recommend for trip to japan only reason why i gave good not excellent is because their selection of movies and tv shows in English is more limited .

I avoid American Airlines for a reason. Our flight was delayed at LAX. The situation at the gate was chaotic. The woman making announcements wasn't being clear or transparent regarding why there were delays. There was a lot of confusion regarding flight and gate status. Other passengers were pretty rude. I was elbowed in the eye by someone who was in a hurry to get their bags from the overhead bin immediately after the flight landed. Ultimately, I will avoid AA as much as possible in the future.

Overall a great experience. One complain was the vegetarian food that my wife had which was mostly boiled vegetables with not much flavor.

We booked business class round trip from Delhi to San Diego and back. On our last leg from Bangalore to Delhi we were down graded to economy class which was big disappointment other than that everything was great.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Leg room wasn't that great. Other than that it was a good flight

If my return flight was not so much better, I would have given an excellent review.

Seats in the absolute back row of the plane even though we booked ages ago :( Crew was awesome though

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

Check in process at the kiosk, crew in flight and overall comfort was good. Food selection could have been better. Flight from Hong Kong to Los Angeles did not have any vegetarian main course option, it was either sea food or chicken. Being a vegetarian I could only eat yogurt and fruit. Most international flights have one vegetarian main course dish which I found missing in Cathay Pacific menu.

Paid a premium a have a shorter transit time in Hong Kong, but Cathay pacific rebooked me and ended up waiting for 10 hrs in Hong Hong airport.

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

The food and service was great. You have to pay a lot for in flight Internet though which is lame.

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Friendly and professional flight crew. Aside from departure delay after boarding, easy flight and smooth landing.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Everything you need to know for your flight from St. Louis to Ho Chi Minh City

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