Cheap flights from St. Louis, MO to Vientiane, Laos
Choose between Thai Airways, Alaska Airlines, or Lao Airlines to find the best price
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Tips to know when travelling to Vientiane
Most popular airline | Thai Airways |
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The most popular airlines for this route are Thai Airways, Alaska Airlines, Lao Airlines, Thai AirAsia, and Qatar Airways. St. Louis and Vientiane have 159 direct flights per week.
Check-in for a flight from St. Louis to Vientiane
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Thai Airways | THA | TG | No | 0 0 |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Lao Airlines | LAO | QV | Yes | 0 0 |
Thai AirAsia | AIQ | FD | No | 0 0 |
Qatar Airways | QTR | QR | Yes | 0 0 |
Weather in Vientiane
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 28°C | 17°C |
February | 32°C | 20°C |
March | 35°C | 23°C |
April | 36°C | 25°C |
May | 34°C | 25°C |
June | 31°C | 25°C |
July | 30°C | 24°C |
August | 30°C | 24°C |
September | 30°C | 23°C |
October | 30°C | 22°C |
November | 30°C | 20°C |
December | 28°C | 17°C |
14 day forecast
Frequently asked questions
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