STL - VTE

$1,667 Find Cheap Flights from St. Louis to Vientiane - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,667
Typical prices: $1,526-$1,878
Multiple Airlines
Sat 11/17Sat 11/24
STL - VTE • 3 stops
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Booking Insights
Flight Deals

Cheap Flights from St. Louis to Vientiane (STL-VTE)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Vientiane

Tue, Nov 17 - Tue, Nov 24
Multiple Airlines Logo
1:15 pm - 1:05 pmSTL  Lambert-St Louis-VTE Vientiane Wattay
34h 50m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:30 pm - 7:27 pmVTE  Vientiane Wattay-STL Lambert-St Louis
35h 57m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl
$1,667Multiple Airlines
Wed, Oct 21 - Wed, Oct 28
Multiple Airlines Logo
11:21 am - 10:50 amSTL  Lambert-St Louis-VTE Vientiane Wattay
35h 29m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:30 pm - 9:59 pmVTE  Vientiane Wattay-STL Lambert-St Louis
37h 29m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Dallas/Fort Worth
$1,690Multiple Airlines
Wed, Oct 21 - Tue, Oct 27
Multiple Airlines Logo
8:55 am - 11:50 pmSTL  Lambert-St Louis-VTE Vientiane Wattay
26h 55m2 stops Toronto Pearson Intl Incheon Intl
Multiple Airlines Logo
1:25 am - 3:23 pmVTE  Vientiane Wattay-STL Lambert-St Louis
49h 58m2 stops Incheon Intl Toronto Pearson Intl
$1,693Multiple Airlines
Wed, Oct 21 - Tue, Oct 27
Multiple Airlines Logo
12:10 pm - 10:30 amSTL  Lambert-St Louis-VTE Vientiane Wattay
34h 20m3 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle Guangzhou Baiyun
Multiple Airlines Logo
1:05 am - 3:23 pmVTE  Vientiane Wattay-STL Lambert-St Louis
50h 18m2 stops Shanghai Pu Dong Toronto Pearson Intl
$3,337Multiple Airlines
Tue, Nov 17 - Mon, Nov 23
Multiple Airlines Logo
1:40 pm - 3:05 pmSTL  Lambert-St Louis-VTE Vientiane Wattay
36h 25m3 stops Denver Intl Vancouver Intl Guangzhou Baiyun
Multiple Airlines Logo
1:25 am - 3:26 pmVTE  Vientiane Wattay-STL Lambert-St Louis
51h 01m2 stops Incheon Intl Toronto Pearson Intl
$4,389Multiple Airlines
Tue, Nov 17 - Tue, Nov 24
China Southern Logo
8:00 am - 10:30 amSTL  Lambert-St Louis-VTE Vientiane Wattay
37h 30m2 stops San Francisco Guangzhou Baiyun
China Southern Logo
4:25 pm - 6:05 pmVTE  Vientiane Wattay-STL Lambert-St Louis
38h 40m2 stops Guangzhou Baiyun San Francisco
$6,864China Southern
Booking Insights

Price, demand and travel trends for St. Louis to Vientiane flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Vientiane with more confidence.

What is the cheapest airline to fly from St. Louis to Vientiane?

China Southern ($6,864) offered the cheapest round-trip ticket from St. Louis to Vientiane in the last 5 days.

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Key details for St. Louis to Vientiane flights

Cheapest flight

$1,667
Flight from St. Louis to Vientiane

When to book flights from St. Louis to Vientiane

Are your dates flexible? Find out the best times to travel from St. Louis to Vientiane based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Vientiane flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What cabin classes can I book on flights from St. Louis to Vientiane?

    Only Economy Class is available on flights from St. Louis to Vientiane.

  • Do I need a passport to fly from St. Louis to Vientiane?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from St. Louis to Vientiane changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,667 to $6,864. That means the highest observed fare was about 4x higher than the lowest one.

  • Which airports can I use when flying from St. Louis to Vientiane?

    Flights from St. Louis to Vientiane usually depart from Lambert-St Louis (STL) and arrive at Vientiane Wattay (VTE).

  • Can I save money by using flexible dates for flights from St. Louis to Vientiane?

    Yes. Being flexible with your travel dates can save you up to 19% on the St. Louis to Vientiane route. Friday is the cheapest departure day at $1,526 round-trip on average, while Tuesday is the most expensive at $1,878, a difference of $352. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between St. Louis and Vientiane?

    Vientiane is 12 hours ahead of St. Louis (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to Vientiane flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Tuesday. On this route, Friday flights average $1,526 - about $352 less than Tuesday (19% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Vientiane Wattay Airport.
    - S Park Design Hotel
    - Chang Palace Vientiane
    - Jian Guo Grand Hotel

More options for your flight from St. Louis to Vientiane

Complete your trip to Vientiane with a hotel stay or car rental

Car rentals in Vientiane
Hotels in Vientiane