Cheap flights from Bangkok to Kathmandu from $255

The cheapest month to fly to Kathmandu from Bangkok is in January. Flight prices, which tend to average around $347, 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 June instead. Flights to Kathmandu in June, while not as cheap as those in January, still average around $360.

Flying to Kathmandu from Bangkok in the morning is the least expensive time of day to depart. momondo users have found prices as low as $382 when looking at flights departing in the morning. Flights to Kathmandu are more costly in the evening, with an average ticket price of $707. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Bangkok Don Mueang Intl 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 $399 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 $336 on momondo.

Historically, on average around 33% 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 91 minutes.

Generally, flights departing at night 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, Thai Airways have had the fewest delays on this route over the last 12 months, with about 24% of their flights experiencing any sort of delay.

The number of flights available between Bangkok and Kathmandu is 2 per day as of March 2026. The most frequent departure time is 10:00, with 69% of daily flights leaving at midday.

14 flights are operational weekly from Bangkok to Kathmandu as of March 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.