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Cheap flights from St. Louis to Vientiane from $3,431

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Vientiane

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:37 am - 9:10 amSTL  Lambert-St Louis-VTE Vientiane Wattay
32h 33m3 stops Chicago O'Hare Intl 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
$3,431Multiple Airlines
Wed, Dec 16 - Thu, Dec 31
Multiple Airlines Logo
4:05 pm - 9:10 amSTL  Lambert-St Louis-VTE Vientiane Wattay
28h 05m3 stops Toronto Pearson Intl Paris Charles de Gaulle Bangkok Suvarnabhumi
Multiple Airlines Logo
8:30 pm - 1:45 pmVTE  Vientiane Wattay-STL Lambert-St Louis
30h 15m2 stops Bangkok Suvarnabhumi Frankfurt am Main
$4,658Multiple Airlines
Wed, Dec 16 - Thu, Dec 31
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
8:30 pm - 1:45 pmVTE  Vientiane Wattay-STL Lambert-St Louis
30h 15m2 stops Bangkok Suvarnabhumi Frankfurt am Main
$5,384Multiple Airlines
Wed, Dec 16 - Thu, Dec 31

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Use the filters below to find and compare flights from St. Louis to Vientiane that are best for you.

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Cheapest round-trip

St. LouisVientiane

STL Lambert-St Louis - VTE Vientiane Wattay

STLVTE

Lambert-St Louis

Wed 12/16

11:37 am-9:10 am

3 stops32h 33m

Vientiane Wattay

Thu 12/31

8:30 pm-7:52 pm

3 stops36h 22m

$3,431
Quickest round-trip

St. LouisVientiane

STL Lambert-St Louis - VTE Vientiane Wattay

STLVTE

Lambert-St Louis

Wed 12/16

4:05 pm-9:10 am

3 stops28h 05m

Vientiane Wattay

Thu 12/31

8:30 pm-1:45 pm

2 stops30h 15m

$4,658

St. LouisVientiane

STL Lambert-St Louis - VTE Vientiane Wattay

STLVTE

Lambert-St Louis

Wed 12/16

4:05 pm-12:25 am

2 stops43h 20m

Vientiane Wattay

Thu 12/31

8:30 pm-1:45 pm

2 stops30h 15m

$5,384

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Vientiane

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Vientiane according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Vientiane (STL to VTE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Vientiane

Best Price Found

$3,431

Fastest flight time

32h 33m

Direct flights

None
The best flight deal from St. Louis to Vientiane found on momondo in the last 72 hours is $3,431
The fastest flight from St. Louis to Vientiane takes 32h 33m
There are no direct flights from St. Louis to Vientiane. There are no popular flight routes from St. Louis to Vientiane.
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Frequently asked questions about flying from St. Louis to Vientiane

  • How far is Lambert-St Louis to Vientiane Wattay by plane?

    The straight-line distance from Lambert-St Louis to Vientiane Wattay is 8433.7 mi. Typically, this will take 32h 33m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Vientiane Wattay Airport?

    Prices for flights from Lambert-St Louis Airport to Vientiane Wattay Airport are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Vientiane Wattay Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Vientiane Wattay Airport.

  • What documentation or ID do you need to fly to Vientiane Wattay Airport?

    The required travel and health documents for your Vientiane Wattay Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vientiane Wattay Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from St. Louis to Vientiane

  • How do I get Price Alerts for flights from St. Louis to Vientiane?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from Vientiane. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from St. Louis to Vientiane with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Vientiane?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Vientiane. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Vientiane with flexible booking policies on momondo?

momondo does allow users to show only those flights to Vientiane from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Vientiane?

momondo provides multiple filters to help you find the best flight to Vientiane from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Vientiane right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Vientiane, momondo offers a useful price alert feature which will track prices for flights to Vientiane from St. Louis and alert you when they change.

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