Cheap flights from Kathmandu to Bangkok from $218

If you aren’t able to travel during the month of March, then book flights to Bangkok from Kathmandu during January instead. Flights to Bangkok in January, while not as cheap as those in March, still average around $266.

On average, the least expensive day to fly to Bangkok from Kathmandu is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $412. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Kathmandu to Bangkok on a Sunday will generally be more expensive and average around $526. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Bangkok is in the afternoon. momondo users have found flights departing from Kathmandu to Bangkok in the afternoon for as low as $235. 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 $550. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Kathmandu Tribhuvan to Bangkok Suvarnabhumi for the best Kathmandu Tribhuvan - Bangkok flight prices

You are more likely to see cheaper flights to Bangkok from Kathmandu when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $353 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Kathmandu for as low as $261 on momondo.

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

IndiGo is the most popular carrier operating from Kathmandu Tribhuvan to Bangkok

Thai Airways, Thai AirAsia and Thai Lion Air are the top three most popular airlines that fly to Bangkok from Kathmandu according to our data. Thai Airways is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 5 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

Historically, on average around 36% of flights between Kathmandu and Bangkok have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

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

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

According to our data, Thai Airways have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

The number of flights available between Kathmandu and Bangkok is 2 per day as of October 2026. The most frequent departure time is 12:00AM, with 34% of daily flights leaving in the morning.

As of October 2026, there are 14 flights per week flying from Kathmandu to Bangkok. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.