STL - HAN

$985 Find Cheap Flights from St. Louis to Hanoi

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Hanoi departing on 9/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Hanoi

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Hanoi, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Hanoi, as well as popular online travel agencies
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Flights Deals

Cheap Flights from St. Louis to Hanoi (STL-HAN)

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

Mon, Sep 15 - Mon, Sep 22
China Airlines Logo
6:30 pm - 10:35 amSTL-HAN
28h 05m2 stops
China Airlines Logo
5:50 pm - 5:34 pmHAN-STL
35h 44m2 stops
$985China Airlines
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Wed, Oct 29 - Wed, Nov 5
ANA Logo
6:45 am - 11:05 pmSTL-HAN
28h 20m2 stops
ANA Logo
12:25 am - 12:13 pmHAN-STL
48h 48m2 stops
$1,006ANA
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Tue, Oct 28 - Sat, Nov 1
China Airlines Logo
7:00 am - 4:35 pmSTL-HAN
45h 35m2 stops
China Airlines Logo
5:35 pm - 12:58 amHAN-STL
43h 23m2 stops
$1,028China Airlines
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Thu, Oct 30 - Wed, Nov 5
EVA Air Logo
4:01 pm - 5:15 pmSTL-HAN
37h 14m2 stops
EVA Air Logo
6:20 pm - 11:58 pmHAN-STL
42h 38m2 stops
$1,048EVA Air
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Wed, Oct 29 - Thu, Nov 6
EVA Air Logo
7:00 am - 5:15 pmSTL-HAN
46h 15m2 stops
EVA Air Logo
12:35 pm - 3:05 pmHAN-STL
39h 30m2 stops
$1,058EVA Air
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Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
5:29 pm - 11:05 pmSTL-HAN
41h 36m3 stops
United Airlines Logo
12:25 am - 5:03 pmHAN-STL
29h 38m2 stops
$1,105United Airlines
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Thu, Oct 30 - Tue, Nov 4
United Airlines Logo
8:20 am - 11:05 pmSTL-HAN
26h 45m2 stops
United Airlines Logo
12:25 am - 5:03 pmHAN-STL
29h 38m2 stops
$1,174United Airlines
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Mon, Sep 15 - Mon, Sep 22
Logo
3:35 pm - 11:05 amSTL-HAN
31h 30m2 stops
Logo
12:05 pm - 3:44 pmHAN-STL
39h 39m3 stops
$1,260
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Tue, Oct 28 - Sat, Nov 1
Logo
5:29 pm - 11:35 amSTL-HAN
30h 06m2 stops
Logo
6:20 pm - 4:29 pmHAN-STL
34h 09m3 stops
$1,465
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Mon, Sep 15 - Sun, Sep 21
Emirates Logo
3:20 pm - 1:15 pmSTL-HAN
33h 55m2 stops
Emirates Logo
1:30 am - 10:08 pmHAN-STL
32h 38m2 stops
$1,751Emirates
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KAYAK's insights & trends for St. Louis to Hanoi flights

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

Which airlines provide the cheapest flights from St. Louis to Hanoi?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Hanoi were found on China Airlines ($985) and ANA ($1,006).

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Good to know

Low seasonMarch
High seasonDecember
Cheapest flight$985
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from St. Louis to Hanoi

When to book flights from St. Louis to Hanoi

Are your dates flexible? Find out the best times to travel from St. Louis to Hanoi 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 Hanoi

  • What is the cheapest flight from St. Louis to Hanoi?

    In the last 3 days, the lowest price for a flight from St. Louis to Hanoi was $985 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Hanoi?

    Yes, you’ll need a passport to travel to Hanoi from St. Louis.

  • Which aircraft models fly most regularly from St. Louis to Hanoi?

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

  • Which airline alliances offer flights from St. Louis to Hanoi?

    SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Hanoi, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from St. Louis to Hanoi?

    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 Hanoi.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hanoi 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 Hanoi?

    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 Hanoi with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and HAN 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 Hanoi?

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

Top airline flying from St. Louis to Hanoi

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Hanoi. 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 Hanoi? 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.
8.0
DeltaOverall score based on 7946 reviews
7.3Food
7.9Entertainment
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Great flight! Only complaint I had was that I didn’t get breakfast that morning because I don’t eat eggs for breakfast.. I ate an energy bar I bought in the airport which I had never done before. Otherwise, another great Delta flight!

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

Everything you need to know for your flight from St. Louis to Hanoi

Information on your arrival and departure airports

St. Louis (STL)
Hanoi (HAN)

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