Cheap flight deals from St. Louis to Hanoi
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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STL 12:4733h 53m2 stopsHAN 10:40St. Louis - Hanoi | Sat, May 3 | Delta Air LinesHAN 23:1033h 29m2 stopsSTL 20:39Hanoi - St. Louis | Sun, May 11 | Delta Air LinesAED 3,907 AED 7,48148% OFF48% OFFAED 7,481 AED 3,907
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STL 15:0867h 7m2 stopsHAN 22:15St. Louis - Hanoi | Sat, May 3 | Alaska AirlinesHAN 23:3536h 24m2 stopsSTL 23:59Hanoi - St. Louis | Sun, May 11 | United AirlinesAED 4,280 AED 7,48143% OFF43% OFFAED 7,481 AED 4,280
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STL 07:0027h2 stopsHAN 22:00St. Louis - Hanoi | Tue, May 6 | United AirlinesHAN 23:3528h 58m2 stopsSTL 16:33Hanoi - St. Louis | Tue, May 13 | United AirlinesAED 4,502 AED 7,48140% OFF40% OFFAED 7,481 AED 4,502
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STL 06:1531h 25m2 stopsHAN 01:40St. Louis - Hanoi | Fri, May 2 | American AirlinesHAN 01:4533h 19m2 stopsSTL 23:04Hanoi - St. Louis | Mon, May 5 | Philippine AirlinesAED 4,62838% OFFAED 7,481 AED 4,628
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STL 15:0867h 7m2 stopsHAN 22:15St. Louis - Hanoi | Sat, May 3 | Hawaiian AirlinesHAN 23:3536h 24m2 stopsSTL 23:59Hanoi - St. Louis | Sun, May 11 | United AirlinesAED 4,63838% OFFAED 7,481 AED 4,638
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STL 13:4144h 34m2 stopsHAN 22:15St. Louis - Hanoi | Mon, May 12 | United AirlinesHAN 23:3553h 17m2 stopsSTL 16:52Hanoi - St. Louis | Mon, May 19 | United AirlinesAED 4,81236% OFFAED 7,481 AED 4,812
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STL 13:4139h 9m2 stopsHAN 16:50St. Louis - Hanoi | Sat, May 3 | United AirlinesHAN 12:0547h 54m2 stopsSTL 23:59Hanoi - St. Louis | Sun, May 11 | EVA AirAED 4,82835% OFFAED 7,481 AED 4,828
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STL 18:1128h 54m2 stopsHAN 11:05St. Louis - Hanoi | Fri, May 2 | United AirlinesHAN 17:3035h 39m2 stopsSTL 17:09Hanoi - St. Louis | Mon, May 5 | Vietnam AirlinesAED 4,98933% OFFAED 7,481 AED 4,989
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STL 06:3046h 20m2 stopsHAN 16:50St. Louis - Hanoi | Fri, May 2 | Alaska AirlinesHAN 12:0547h 54m2 stopsSTL 23:59Hanoi - St. Louis | Mon, May 5 | EVA AirAED 5,15731% OFFAED 7,481 AED 5,157
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STL 19:1126h 44m2 stopsHAN 09:55St. Louis - Hanoi | Tue, May 6 | Cathay PacificHAN 10:3024h 16m2 stopsSTL 22:46Hanoi - St. Louis | Tue, May 13 | Cathay PacificAED 5,53626% OFFAED 7,481 AED 5,536
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STL 13:0017h 25m1 stopsHAN Invalid DateSt. Louis - Hanoi | Thu, May 1 | Normal AirlineHAN 15:006hNonstopSTL 16:00Hanoi - St. Louis | Sat, May 3 | Normal AirlineFind More FlightsFind More Flights
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STL 15:3026h 25m1 stopsHAN 05:55St. Louis - Hanoi | Fri, May 16 | LufthansaAED 19,672 AED 28,05430% OFF30% OFFAED 28,054 AED 19,672
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STL 15:3026h 25m1 stopsHAN 05:55St. Louis - Hanoi | Sun, May 11 | LufthansaAED 19,727 AED 28,05430% OFF30% OFFAED 28,054 AED 19,727
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STL 15:3026h 25m1 stopsHAN 05:55St. Louis - Hanoi | Wed, May 14 | LufthansaAED 19,793 AED 28,05428% OFF28% OFFAED 28,054 AED 19,793
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STL 15:3026h 25m1 stopsHAN 05:55St. Louis - Hanoi | Sun, May 18 | LufthansaAED 20,76026% OFFAED 28,054 AED 20,760
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STL 13:0017h 25m1 stopsHAN Invalid DateSt. Louis - Hanoi | Thu, May 1 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Frequently Asked Questions
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When are flight tickets from St. Louis (STL) to Hanoi (HAN) the cheapest?
Airlines adjust prices for flights from St. Louis to Hanoi based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from St. Louis (STL) to Hanoi (HAN) cost?
According to Trip.com's data, the lowest price is around AED 6,277. -
How many airports are there in Hanoi (HAN)?
There are 1 airport(s) near Hanoi (HAN): Noi Bai International Airport.
How to find a cheap flight from St. Louis to Hanoi
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Hanoi. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest St. Louis to Hanoi ticket.
Tap "Date" on flight search bar to scan through the calender for St. Louis to Hanoi airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Fri, May 16 at AED 19672 for one-way flights.
Compare cheap St. Louis to Hanoi flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from St. Louis to Hanoi. The cheapest airline operating is Lufthansa.
Set up a Price Alert
By setting up a Price Alert for your St. Louis to Hanoi route, you can easily track the price of your airline tickets from without manually checking every day.
Don't miss cheap St. Louis to Hanoi flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
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To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from St. Louis to Hanoi to get exclusive deals for you.
Flight Info | St. Louis to Hanoi
Cheapest one-way flight price | AED 19,671 |
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Off-season for travel | March |
Peak season for travel | March |
Flight distance | 13,155.66 km |
Popular airline | American Airlines |
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