In terms of precipitation, rainfall in Laos ranges from 0.4 - 4.7 inches per month. July is typically the wettest month, when rainfall can reach 4.7 in. January is typically the driest time to visit Laos when rainfall is around 0.4 in.

If weather is an important factor for your trip to Laos, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).

What are the most popular airlines that fly from St. Louis to Laos?

The most popular airlines flying from St. Louis to Laos are American Airlines, Southwest and Delta. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from STL to LA?

When flying from St. Louis to Laos, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to Laos?

Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Laos.

Can I find deals for flights from St. Louis to Laos that include hotel bookings?

Yes. In addition to deals on St. Louis to Laos flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Laos?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Laos.

Can I find deals for business class flights from St. Louis to Laos?

Yes. Cheapflights offers flight deals from St. Louis to Laos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$2,628+ Flights from St. Louis to Laos

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Best flights from St. Louis to Laos
Discover carefully curated flight deals from St. Louis to Laos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Sun 1/252:50 pmSTL - VTE

2 stops33h 40mMultiple Airlines

Thu 1/2911:50 pmVTE - STL

2 stops35h 56mMultiple Airlines

Deal found 12/21

$2,628

Wed 2/44:05 pmSTL - VTE

3 stops32h 00mMultiple Airlines

Wed 2/114:25 pmVTE - STL

2 stops60h 04mMultiple Airlines

Deal found 12/21

$4,183

Last-minute flights from St. Louis to Laos
Discover last-minute flight deals from St. Louis to Laos. Data last updated December 23, 2025 and is based on user searches.

Sun 1/252:50 pmSTL - VTE

2 stops33h 40mMultiple Airlines

Thu 1/2911:50 pmVTE - STL

2 stops35h 56mMultiple Airlines

Deal found 12/21

$2,628

Find flight deals from St. Louis to Laos

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From Lambert-St Louis to Laos

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Fly from

Fly to

Route

Depart

Return

Price

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Sun 1/25

2:50 pm-1:30 pm

2 stops33h 40m

Vientiane Wattay

Thu 1/29

11:50 pm-10:46 pm

2 stops35h 56m

$2,628

St. LouisVientiane

STL - VTE

STLVTE

Lambert-St Louis

Wed 2/4

4:05 pm-1:05 pm

3 stops32h 00m

Vientiane Wattay

Wed 2/11

4:25 pm-3:29 pm

2 stops60h 04m

$4,183

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Deals found on 12/21

Best time to book a flight from St. Louis to Laos

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Related info for your journey

What airport do you fly from for flights from St. Louis to Laos?
Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Laos.
Can I find deals for flights from St. Louis to Laos that include hotel bookings?
Yes. In addition to deals on St. Louis to Laos flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Laos?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Laos.
Can I find deals for business class flights from St. Louis to Laos?
Yes. Cheapflights offers flight deals from St. Louis to Laos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$2,628+ Cheap flights from St. Louis (STL) to Laos

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from St. Louis to Laos

Best flights from St. Louis to LaosDiscover carefully curated flight deals from St. Louis to Laos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Discover carefully curated flight deals from St. Louis to Laos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

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Everything you need to know about your flight from St. Louis to Laos

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Laos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from St. Louis to Laos?

Can I find deals for flights from St. Louis to Laos that include hotel bookings?

How can I find direct flights from St. Louis to Laos?

Can I find deals for business class flights from St. Louis to Laos?

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Best flights from St. Louis to Laos
Discover carefully curated flight deals from St. Louis to Laos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.