STL - VTE

$2,062 Find Cheap Flights from St. Louis to Vientiane - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,799
Typical prices: $1,497-$1,546
Multiple Airlines
Mon 12/3Mon 12/10
STL - VTE • 3 stops
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Cheap Flights from St. Louis to Vientiane (STL-VTE)

 

Cheap flights from St. Louis to Vientiane with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Wed, Nov 18 - Wed, Dec 16
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 - 7:52 pmVTE  Vientiane Wattay-STL Lambert-St Louis
36h 22m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl
$2,062Multiple Airlines
Wed, Nov 18 - Wed, Dec 16
Multiple Airlines Logo
8:10 am - 10:30 amSTL  Lambert-St Louis-VTE Vientiane Wattay
37h 20m2 stops Los Angeles Guangzhou Baiyun
Multiple Airlines Logo
11:25 am - 4:26 pmVTE  Vientiane Wattay-STL Lambert-St Louis
42h 01m3 stops Phnom Penh Techo Intl Ho Chi Minh City San Francisco
$4,550Multiple Airlines
Wed, Nov 18 - Tue, Dec 15
Multiple Airlines Logo
4:05 pm - 12:25 amSTL  Lambert-St Louis-VTE Vientiane Wattay
43h 20m2 stops Toronto Pearson Intl Incheon Intl
Multiple Airlines Logo
1:25 am - 3:26 pmVTE  Vientiane Wattay-STL Lambert-St Louis
51h 01m2 stops Incheon Intl Toronto Pearson Intl
$6,254Multiple Airlines

Key details for St. Louis to Vientiane flights

Cheapest flight

$1,496
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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 $1,799 to $6,254. That means the highest observed fare was about 3x 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. Flexible dates can save you up to 19% on flights from St. Louis to Vientiane. 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 are flexible, aim for a Friday departure and avoid flying on Tuesday. On this route, Friday flights average $1,526, about $352 less than Tuesday fares (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