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Cheap flights from St. Louis to Laos from $1,554

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Laos departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from St. Louis to Laos

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:47 pm - 12:40 pm
STL
-
VTE
33h 53m
3 stops
Multiple Airlines Logo
1:55 pm - 3:29 pm
VTE
-
STL
38h 34m
3 stops
$1,554Multiple Airlines
Fri, Oct 16 - Fri, Nov 13
Multiple Airlines Logo
4:29 pm - 12:40 pm
STL
-
VTE
32h 11m
3 stops
Multiple Airlines Logo
8:30 pm - 7:46 pm
VTE
-
STL
35h 16m
3 stops
$1,594Multiple Airlines
Fri, Oct 2 - Sun, Oct 11
Multiple Airlines Logo
4:32 pm - 1:05 pm
STL
-
VTE
32h 33m
3 stops
Multiple Airlines Logo
8:30 pm - 7:30 pm
VTE
-
STL
36h 00m
3 stops
$1,839Multiple Airlines
Fri, Oct 23 - Thu, Nov 19
Multiple Airlines Logo
1:45 pm - 12:40 pm
STL
-
VTE
34h 55m
3 stops
Multiple Airlines Logo
8:30 pm - 8:30 pm
VTE
-
STL
36h 00m
3 stops
$2,136Multiple Airlines
Thu, May 21 - Tue, Jun 2
Multiple Airlines Logo
9:08 am - 12:40 pm
STL
-
VTE
39h 32m
3 stops
Multiple Airlines Logo
8:30 pm - 8:30 pm
VTE
-
STL
36h 00m
3 stops
$2,295Multiple Airlines
Thu, May 21 - Tue, Jun 2
Multiple Airlines Logo
9:08 am - 12:40 pm
STL
-
VTE
39h 32m
3 stops
Multiple Airlines Logo
8:30 pm - 8:30 pm
VTE
-
STL
36h 00m
3 stops
$2,349Multiple Airlines
Thu, May 21 - Tue, Jun 2
Multiple Airlines Logo
12:10 pm - 11:50 pm
STL
-
VTE
47h 40m
2 stops
Multiple Airlines Logo
12:50 am - 6:41 pm
VTE
-
STL
53h 51m
2 stops
$2,697Multiple Airlines
Fri, Oct 2 - Sat, Oct 10
Multiple Airlines Logo
2:40 pm - 10:30 am
STL
-
VTE
31h 50m
3 stops
Multiple Airlines Logo
12:50 am - 6:41 pm
VTE
-
STL
53h 51m
2 stops
$3,106Multiple Airlines
Fri, Oct 2 - Sat, Oct 10
Multiple Airlines Logo
3:30 pm - 12:00 pm
STL
-
VTE
56h 30m
2 stops
Multiple Airlines Logo
12:35 pm - 1:55 pm
VTE
-
STL
38h 20m
2 stops
$3,653Multiple Airlines
Fri, Oct 23 - Thu, Nov 19
Multiple Airlines Logo
2:47 pm - 10:45 am
STL
-
VTE
31h 58m
3 stops
Multiple Airlines Logo
1:05 am - 3:30 pm
VTE
-
STL
51h 25m
2 stops
$3,975Multiple Airlines
Fri, Oct 23 - Wed, Nov 18

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Customize your flight search to find flights from St. Louis to Laos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 28, 2026.
Use the filters below to find and compare flights from St. Louis to Laos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/16

2:47 pm-12:40 pm

3 stops33h 53m

Vientiane Wattay

Fri 11/13

1:55 pm-3:29 pm

3 stops38h 34m

$1,554
Quickest round-trip

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/2

4:29 pm-12:40 pm

3 stops32h 11m

Vientiane Wattay

Sun 10/11

8:30 pm-7:46 pm

3 stops35h 16m

$1,594

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/23

4:32 pm-1:05 pm

3 stops32h 33m

Vientiane Wattay

Thu 11/19

8:30 pm-7:30 pm

3 stops36h 00m

$1,839

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Thu 5/21

1:45 pm-12:40 pm

3 stops34h 55m

Vientiane Wattay

Tue 6/2

8:30 pm-8:30 pm

3 stops36h 00m

$2,136

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Thu 5/21

9:08 am-12:40 pm

3 stops39h 32m

Vientiane Wattay

Tue 6/2

8:30 pm-8:30 pm

3 stops36h 00m

$2,295

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Thu 5/21

9:08 am-12:40 pm

3 stops39h 32m

Vientiane Wattay

Tue 6/2

8:30 pm-8:30 pm

3 stops36h 00m

$2,349

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/2

12:10 pm-11:50 pm

2 stops47h 40m

Vientiane Wattay

Sat 10/10

12:50 am-6:41 pm

2 stops53h 51m

$2,697

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/2

2:40 pm-10:30 am

3 stops31h 50m

Vientiane Wattay

Sat 10/10

12:50 am-6:41 pm

2 stops53h 51m

$3,106

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/23

3:30 pm-12:00 pm

2 stops56h 30m

Vientiane Wattay

Thu 11/19

12:35 pm-1:55 pm

2 stops38h 20m

$3,653

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Fri 10/23

2:47 pm-10:45 am

3 stops31h 58m

Vientiane Wattay

Wed 11/18

1:05 am-3:30 pm

2 stops51h 25m

$3,975

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap St. Louis to Laos flight deals and tips

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

Fastest flight time

33h 53m

Direct flights

None
The fastest flight from St. Louis to Laos takes 33h 53m
There are no direct flights from St. Louis to Laos. There are no popular flight routes from St. Louis to Laos.
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Frequently asked questions about flying from St. Louis to Laos

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

    Prices for flights from Lambert-St Louis Airport to Laos were last updated today.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Laos.

  • What documentation or ID do you need to fly to Laos?

    The necessary travel and health documents for your Laos trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from St. Louis to Laos

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

    Price Alerts will notify you by email when the price for flights to Laos from St. Louis decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

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

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

It is quick and easy to find St. Louis to Laos flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Laos that suits you.

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

Yes. All flights to Laos from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for St. Louis to Laos flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Laos from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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