Cheap flights from Thailand to Vietnam from £55

In general, August is the cheapest month to fly from Thailand to Vietnam. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £96. If you’re not able to fly to Vietnam in August, then September is your next best option. Flight prices from Thailand to Vietnam during September average around £98.

The cheapest day to depart from Thailand to Vietnam is on a Tuesday when prices can be found for as low as £126. Flights from Thailand to Vietnam on a Thursday will generally be more expensive and average around £139. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Vietnam from Thailand at midday is the least expensive time of day to depart. momondo users have found prices as low as £103 when looking at flights departing at midday. Flights in the evening are often more expensive, with an average ticket price of £268.

Fly from Bangkok Suvarnabhumi to Phu Quoc Duong Dang for the best Thailand - Vietnam flight prices

You are more likely to see cheaper flights to Vietnam from Thailand when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around £112 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from Thailand for as low as £98 on momondo.

There are 3 cabin classes available to choose from on Thailand to Vietnam flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Emirates and Vietnam Airlines are the most popular carriers operating from Thailand to Vietnam

Thai AirAsia, Thai Vietjet Air and VietJet Air are the top three most popular airlines that fly to Vietnam from Thailand according to our data. Thai AirAsia is the first choice among our users, with 38% of people opting to fly with this airline when travelling to Vietnam. Keep in mind that there are 7 different airlines that fly to Vietnam on a routine basis, so you have a few additional options to choose from.

Historically, on average around 28% of flights between Thailand and Vietnam have experienced a delay on any given week. The average delay length over the past 12 months has been 97 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Thai Airways 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 30 flights per day flying from Thailand to Vietnam. The most common time of day flights depart is 19:00, with 40% of flights taking off in the afternoon.

212 flights are operational weekly from Thailand to Vietnam as of March 2026. The most popular departure day for this route is Sat, with 38% of flights per week taking off on this day.