Cheap flights from Bangkok to Kathmandu from $294

The cheapest month to fly to Kathmandu from Bangkok is in December. Flight prices, which tend to average around $87, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Kathmandu from Bangkok during July instead. Flights to Kathmandu in July, while not as cheap as those in December, still average around $107.

The cheapest day to depart from Bangkok to Kathmandu is on a Wednesday when prices can be found for as low as $545. Flights from Bangkok to Kathmandu on a Saturday will generally be more expensive and average around $764. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 $378 when looking at flights departing in the morning. Flights to Kathmandu are more costly in the evening, with an average ticket price of $696. 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 $396 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 $331 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.

Air India and China Southern are the most popular carriers operating from Bangkok to Kathmandu Tribhuvan

Thai Lion Air, Thai AirAsia and Thai Airways 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 46% 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 30% 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 87 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.

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 20% of their flights experiencing any sort of delay.

The number of flights available between Bangkok and Kathmandu is 2 per day as of June 2026. The most frequent departure time is 10:00, with 41% of daily flights leaving at midday.

17 flights are operational weekly from Bangkok to Kathmandu as of June 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.