Cheap flights from Bangkok Suvarnabhumi Airport to Kathmandu from C$ 305

The cheapest month to fly to Kathmandu from Bangkok Suvarnabhumi Airport is in January. Flight prices, which tend to average around C$ 348, 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 Suvarnabhumi Airport during December instead. Flights to Kathmandu in December, while not as cheap as those in January, still average around C$ 362.

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

You are more likely to see cheaper flights to Kathmandu from Bangkok Suvarnabhumi Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around C$ 438 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from Bangkok Suvarnabhumi Airport for as low as C$ 331 on momondo.

There is only 1 cabin class available to choose from on Bangkok Suvarnabhumi Airport to Kathmandu flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 27% 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 86 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.

Tuesday 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 has had the least delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

2 flights are operational daily from Bangkok Suvarnabhumi Airport to Kathmandu as of June 2026. The most popular departure time for this route is 10:00a.m., with 44% of flights per day taking off at noon.

The number of flights available between Bangkok Suvarnabhumi Airport and Kathmandu is 16 per week as of June 2026. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.