Cheap flights from Kathmandu to Bangkok from $140

The month of July is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Kathmandu, with most prices found around $246. The month of January is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Kathmandu averaging around $254.

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Monday when prices can be found for as low as $398. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Kathmandu because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $581.

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the afternoon. Flights from Kathmandu to Bangkok Suvarnabhumi Airport during this time can be as low as $249. In the evening is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $581 per ticket.

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

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Kathmandu when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $285 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Kathmandu for as low as $227 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Kathmandu to Bangkok Suvarnabhumi Airport flight.

As of February 2026, prices for Kathmandu to Bangkok Suvarnabhumi Airport flights are approximately 21% cheaper when compared to flights at the same time last year.

Air India, China Eastern, and Malaysia Airlines are the most popular carriers operating from Kathmandu Tribhuvan to Bangkok Suvarnabhumi

Thai AirAsia, Thai Airways and Thai Lion Air are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Kathmandu according to our data. Thai AirAsia is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 4 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 34% 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 122 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. Monday 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 28% of their flights experiencing any sort of delay.

As of February 2026, there are 1 flights per day flying from Kathmandu to Bangkok Suvarnabhumi Airport. The most common time of day flights depart is 12:00AM, with 42% of flights taking off in the morning.

The number of flights available between Kathmandu and Bangkok Suvarnabhumi Airport is 13 per week as of February 2026. The most frequent departure day is Fri, with 23% of weekly flights leaving on this day.