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).

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.

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.

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.

Cheap Flights from St. Louis to Vientiane | KAYAK

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,594

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

Multiple Airlines

Sun 10/7Sun 10/14

STL - VTE • 3 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Vientiane!

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

Wed, Oct 7 - Wed, Oct 14

11:21 am - 10:50 amSTL Lambert-St Louis-VTE Vientiane Wattay

35h 29m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

8:30 pm - 8:57 pmVTE Vientiane Wattay-STL Lambert-St Louis

36h 27m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$1,594Multiple Airlines

Wed, Oct 7 - Tue, Oct 13

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

26h 55m2 stops Toronto Pearson Intl Incheon Intl

12:50 am - 8:20 pmVTE Vientiane Wattay-STL Lambert-St Louis

55h 30m2 stops Incheon Intl Toronto Pearson Intl

$1,921Multiple Airlines

Wed, Dec 2 - Tue, Jan 5

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

$2,292Multiple Airlines

Wed, Dec 2 - Mon, Jan 4

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

$2,457Multiple Airlines

Wed, Dec 9 - Tue, Jan 5

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

$2,575Multiple Airlines

Thu, Dec 3 - Tue, Jan 5

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

$2,589Multiple Airlines

Thu, Dec 3 - Wed, Jan 6

1:15 pm - 10:40 amSTL Lambert-St Louis-VTE Vientiane Wattay

32h 25m3 stops Philadelphia Doha Hamad Intl Hanoi Noibai

8:30 pm - 7:29 pmVTE Vientiane Wattay-STL Lambert-St Louis

35h 59m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$2,607Multiple Airlines

Wed, Dec 9 - Mon, Jan 4

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

$2,740Multiple Airlines

Thu, Dec 3 - Mon, Jan 4

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

$2,754Multiple Airlines

Thu, Dec 10 - Tue, Jan 5

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

$2,849Multiple Airlines

Useful Info

Cheapest flight	$1,594

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).
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.
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.
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.

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

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

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

Car rentals in Vientiane

Hotels in Vientiane

STL - VTE

$2,292 Find Cheap Flights from St. Louis to Vientiane - Compare and Save

Everything you should know

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

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

Recent one-way flight deals from St. Louis to Vientiane

Key details for St. Louis to Vientiane flights

Cheapest flight

When to book flights from St. Louis to Vientiane

Your St. Louis to Vientiane flight questions, answered

Your guide to booking St. Louis to Vientiane flights

More options for your flight from St. Louis to Vientiane

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

Information on your arrival and departure airports

Cabin class types available on flights from St. Louis to Vientiane

Find direct flights to and from St. Louis and Vientiane

Flights from domestic origins to Vientiane

Flights to other popular destinations