Cheap flights from Bangkok to Kathmandu from $283

The cheapest month to fly to Kathmandu from Bangkok is in January. Flight prices, which tend to average around $354, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Kathmandu from Bangkok during December instead. Flights to Kathmandu in December, while not as cheap as those in January, still average around $361.

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

You are more likely to see cheaper flights to Kathmandu from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $465 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from Bangkok for as low as $334 on momondo.

There are 2 cabin classes available to choose from on Bangkok to Kathmandu flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Thai Airways and China Eastern are the most popular carriers operating from Bangkok to Kathmandu Tribhuvan

Thai Lion Air, Thai Airways and Thai AirAsia are the top three most popular airlines that fly to Kathmandu from Bangkok according to our data. Thai Lion Air is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Kathmandu. Keep in mind that there are 3 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

Historically, on average around 29% of flights between Bangkok and Kathmandu have experienced a delay on any given week. The average delay length over the past 12 months has been 85 minutes.

Generally, flights departing in the evening 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. 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 20% of their flights experiencing any sort of delay.

The number of flights available between Bangkok and Kathmandu is 2 per day as of July 2026. The most frequent departure time is 10:00, with 44% of daily flights leaving at midday.

16 flights are operational weekly from Bangkok to Kathmandu as of July 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.