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.

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 $1,394 to $11,878. That means the highest observed fare was about 9x higher than the lowest one.

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.

How much should I expect to pay for a St. Louis to Vientiane flight?

Round-trip flights from St. Louis to Vientiane range from $1,526 to $1,878, with an average of $1,546 over the past 12 months. Anything below $1,526 counts as a good deal.

Cheap Flights from St. Louis to Vientiane | KAYAK

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Cheapest round-trip

$1,394

Typical prices: $1,526-$1,878

Multiple Airlines

Sat 9/22Fri 9/28

STL - VTE • 2 stops

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Flight Deals

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

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

Round-trip

One-way

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

Tue, Sep 22 - Mon, Sep 28

2:40 pm - 11:50 pmSTL Lambert-St Louis-VTE Vientiane Wattay

45h 10m2 stops Toronto Pearson Intl Incheon Intl

12:50 am - 2:00 pmVTE Vientiane Wattay-STL Lambert-St Louis

49h 10m2 stops Incheon Intl Toronto Pearson Intl

$1,394Multiple Airlines

Sat, Nov 14 - Tue, Nov 24

7:00 am - 11:15 amSTL Lambert-St Louis-VTE Vientiane Wattay

39h 15m3 stops Seattle/Tacoma Intl Doha Hamad Intl Bangkok Suvarnabhumi

8:30 pm - 6:22 pmVTE Vientiane Wattay-STL Lambert-St Louis

34h 52m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$1,510Multiple Airlines

Tue, Sep 22 - Tue, Sep 29

1:49 pm - 11:00 amSTL Lambert-St Louis-VTE Vientiane Wattay

33h 11m3 stops Chicago O'Hare Intl Doha Hamad Intl Bangkok Suvarnabhumi

2:30 pm - 2:44 pmVTE Vientiane Wattay-STL Lambert-St Louis

36h 14m3 stops Hanoi Noibai Doha Hamad Intl Dallas/Fort Worth

$1,535Multiple Airlines

Sat, Nov 14 - Sun, Nov 22

7:00 am - 11:15 amSTL Lambert-St Louis-VTE Vientiane Wattay

39h 15m3 stops Seattle/Tacoma Intl Doha Hamad Intl Bangkok Suvarnabhumi

8:30 pm - 7:27 pmVTE Vientiane Wattay-STL Lambert-St Louis

35h 57m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$1,550Multiple Airlines

Tue, Sep 22 - Tue, Sep 29

8:55 am - 11:50 pmSTL Lambert-St Louis-VTE Vientiane Wattay

26h 55m2 stops Toronto Pearson Intl Incheon Intl

8:20 pm - 8:20 pmVTE Vientiane Wattay-STL Lambert-St Louis

36h 00m3 stops Hanoi Noibai Osaka Kansai Intl Toronto Pearson Intl

$2,014Multiple Airlines

Sat, Nov 14 - Mon, Nov 23

4:05 pm - 12:25 amSTL Lambert-St Louis-VTE Vientiane Wattay

43h 20m2 stops Toronto Pearson Intl Incheon Intl

1:25 am - 3:26 pmVTE Vientiane Wattay-STL Lambert-St Louis

51h 01m2 stops Incheon Intl Toronto Pearson Intl

$2,741Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

8:10 am - 3:05 pmSTL Lambert-St Louis-VTE Vientiane Wattay

41h 55m2 stops Los Angeles Guangzhou Baiyun

11:30 am - 3:26 pmVTE Vientiane Wattay-STL Lambert-St Louis

40h 56m2 stops Guangzhou Baiyun Toronto Pearson Intl

$3,961China Southern

Fri, Nov 13 - Sun, Nov 22

8:10 am - 3:05 pmSTL Lambert-St Louis-VTE Vientiane Wattay

41h 55m2 stops Los Angeles Guangzhou Baiyun

11:30 am - 3:26 pmVTE Vientiane Wattay-STL Lambert-St Louis

40h 56m2 stops Guangzhou Baiyun Toronto Pearson Intl

$4,011China Southern

Sun, Nov 15 - Tue, Nov 24

6:02 am - 3:05 pmSTL Lambert-St Louis-VTE Vientiane Wattay

44h 03m2 stops Los Angeles Guangzhou Baiyun

4:25 pm - 6:05 pmVTE Vientiane Wattay-STL Lambert-St Louis

38h 40m2 stops Guangzhou Baiyun San Francisco

$4,013China Southern

Fri, Nov 13 - Tue, Nov 24

6:02 am - 10:30 amSTL Lambert-St Louis-VTE Vientiane Wattay

39h 28m2 stops Los Angeles Guangzhou Baiyun

4:25 pm - 6:05 pmVTE Vientiane Wattay-STL Lambert-St Louis

38h 40m2 stops Guangzhou Baiyun San Francisco

$4,063China 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 ($3,961) offered the cheapest round-trip ticket from St. Louis to Vientiane in the last 5 days.

Find deals

Cheapest flight	$1,394

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

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.

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.
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 $1,394 to $11,878. That means the highest observed fare was about 9x higher than the lowest one.
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.
How much should I expect to pay for a St. Louis to Vientiane flight?
Round-trip flights from St. Louis to Vientiane range from $1,526 to $1,878, with an average of $1,546 over the past 12 months. Anything below $1,526 counts as a good deal.

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

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

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Vientiane (VTE)

STL - VTE

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

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

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

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Your St. Louis to Vientiane flight questions, answered

Your guide to booking St. Louis to Vientiane flights

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

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