Cheap flights from Bangkok to Vientiane from C$ 151

If you are unable to visit Vientiane during the month of December, then departing from Bangkok during the month October is also very affordable. Most momondo users find prices during this month for around C$ 144.

On average, the least expensive day to fly to Vientiane from Bangkok is on a Saturday. momondo users have found tickets for Saturday departures for as low as C$ 242. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around C$ 519. These prices are subject to change though, so be sure to set up a Price Alert for flights to Vientiane.

According to our data, the cheapest time of day to fly to Vientiane is at noon. momondo users have found flights departing from Bangkok to Vientiane at noon for as low as C$ 253. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around C$ 519. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Bangkok Suvarnabhumi to Vientiane Wattay for the best Bangkok - Vientiane Wattay flight prices

You are more likely to see cheaper flights to Vientiane from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Vientiane for around C$ 263 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vientiane from Bangkok for as low as C$ 231 on momondo.

There is only 1 cabin class available to choose from on Bangkok to Vientiane flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Lao Airlines is the most popular carrier operating from Bangkok to Vientiane Wattay

Lao Airlines, Thai AirAsia and Thai Airways are the top three most popular airlines that fly to Vientiane from Bangkok according to our data. Lao Airlines is the first choice among our users, with 56% of people opting to fly with this airline when travelling to Vientiane. Keep in mind that there are 3 different airlines that fly to Vientiane on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Bangkok and Vientiane have experienced a delay on any given week. The average delay length over the past 12 months has been 75 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, AirAsia has had the least delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

As of June 2026, 6 flights take off from Bangkok and land in Vientiane each day. The most common flight departure time for this route is 6:00p.m., with 53% of daily flights taking off in the evening.

As of June 2026, 48 flights take off from Bangkok and land in Vientiane each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.