Cheap flights from Seattle, WA to Vientiane, Laos
Flights starting at $762. Choose between Alaska Airlines, Thai AirAsia, or Lao Airlines to find the best price.
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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Vientiane. The most popular airlines for this route are Alaska Airlines, Thai AirAsia, Lao Airlines, Thai Airways, and Japan Airlines. Seattle and Vientiane have 313 direct flights per week.
Check-in for a flight from Seattle to Vientiane
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Thai AirAsia | AIQ | FD | No | 0 0 |
Lao Airlines | LAO | QV | Yes | 0 0 |
Thai Airways | THA | TG | No | 0 0 |
Japan Airlines | JAL | JL | No | 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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