Cheap flights from Bangkok to Vientiane from £80

In general, August is the cheapest month to fly from Bangkok to Vientiane. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £124. If you’re not able to fly to Vientiane in August, then September is your next best option. Flight prices from Bangkok to Vientiane during September average around £125.

The cheapest day to depart from Bangkok to Vientiane is on a Sunday when prices can be found for as low as £142. On the other hand, Tuesday is the most expensive day to depart from Bangkok because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £157.

The cheapest time of day to fly to Vientiane is at midday when flights can be purchased for as low as £120. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £182 on average. Flights to Vientiane from Bangkok in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Bangkok Don Mueang Intl 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 £133 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vientiane from Bangkok for as low as £123 on momondo.

There are 2 cabin classes available to choose from on Bangkok to Vientiane Wattay 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

Thai AirAsia, Lao Airlines and Thai Airways are the top three most popular airlines that fly to Vientiane from Bangkok according to our data. Thai AirAsia is the first choice among our users, with 54% 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 25% 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 76 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.

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

According to our data, AirAsia have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

As of March 2026, there are 7 flights per day flying from Bangkok to Vientiane. The most common time of day flights depart is 18:00, with 50% of flights taking off in the evening.

As of March 2026, there are 53 flights per week flying from Bangkok to Vientiane. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.