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Cheap Flights from Bangkok Suvarnabhumi to Kathmandu

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Compare Bangkok Suvarnabhumi to Kathmandu flight deals

Find the cheapest month or even day of the year to fly to Kathmandu

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Flight deals from Bangkok Suvarnabhumi to Kathmandu

Looking for a cheap last-minute deal or the best return flight from Bangkok Suvarnabhumi to Kathmandu? Find the lowest prices on one-way and return tickets right here.
Kathmandu.ج.م.‏ 8,837 per passenger.Departing Thu, 26 Jun.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Bangkok Suvarnabhumi on Thu, 26 Jun, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 8,837, select.
Kathmandu.ج.م.‏ 9,017 per passenger.Departing Wed, 19 Mar.One-way flight with China Southern.Outbound indirect flight with China Southern, departs from Bangkok Suvarnabhumi on Wed, 19 Mar, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,017, select.
Kathmandu.ج.م.‏ 9,074 per passenger.Departing Fri, 4 Jul.One-way flight with China Southern.Outbound indirect flight with China Southern, departs from Bangkok Suvarnabhumi on Fri, 4 Jul, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,074, select.
Kathmandu.ج.م.‏ 9,074 per passenger.Departing Fri, 2 May.One-way flight with China Southern.Outbound indirect flight with China Southern, departs from Bangkok Suvarnabhumi on Fri, 2 May, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,074, select.
Kathmandu.ج.م.‏ 9,096 per passenger.Departing Sat, 6 Sep.One-way flight with China Southern.Outbound indirect flight with China Southern, departs from Bangkok Suvarnabhumi on Sat, 6 Sep, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,096, select.
Kathmandu.ج.م.‏ 9,521 per passenger.Departing Wed, 12 Nov.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Bangkok Suvarnabhumi on Wed, 12 Nov, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,521, select.
Kathmandu.ج.م.‏ 9,539 per passenger.Departing Wed, 13 Aug.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Bangkok Suvarnabhumi on Wed, 13 Aug, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,539, select.
Kathmandu.ج.م.‏ 9,548 per passenger.Departing Wed, 30 Apr.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Bangkok Suvarnabhumi on Wed, 30 Apr, arriving in Kathmandu.Price includes taxes and charges.From ج.م.‏ 9,548, select.

Find the cheapest month to fly from Bangkok Suvarnabhumi to Kathmandu

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Bangkok Suvarnabhumi to Kathmandu flights are currently cheapest in June.
Mar
from ج.م.‏ 9,017
Apr
from ج.م.‏ 9,548
May
from ج.م.‏ 9,074
Jun
from ج.م.‏ 8,837
Jul
from ج.م.‏ 9,074
Aug
from ج.م.‏ 9,539
Sep
from ج.م.‏ 9,096
Oct
from ج.م.‏ 10,260
Nov
from ج.م.‏ 9,521
Dec
from ج.م.‏ 10,387
Jan
from ج.م.‏ 9,657
Feb
from ج.م.‏ 10,461

Direct flights from Bangkok Suvarnabhumi to Kathmandu

Bangkok Suvarnabhumi to Kathmandu: Alternative routes

Compare routes from Bangkok Suvarnabhumi to Kathmandu below. You may find an airport to fly into that's cheaper, faster, or easier than Kathmandu.

Bangkok to Kathmandu: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 8,837
Cheapest month to flyJune
Average flight time3 hrs, 27 mins
Most popular airlineThai Airways
Average flights per week8

Finding cheap flights from Bangkok Suvarnabhumi to Kathmandu: Frequently asked questions

The best price we found for a return flight from Bangkok Suvarnabhumi to Kathmandu is ج.م.‏ 17,172. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 27 minutes is the average flight time from Bangkok Suvarnabhumi to Kathmandu.
Thai Airways and Nepal Airlines fly direct from Bangkok Suvarnabhumi to Kathmandu.
As of March 2025, there are 8 flights per week flying from Bangkok Suvarnabhumi to Kathmandu.
The cheapest month to fly from Bangkok Suvarnabhumi to Kathmandu is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Bangkok Suvarnabhumi Airport to Kathmandu Airport on Monday, 1 September 2025.
Yes – the average flight time is 3 hours and 27 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kathmandu but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kathmandu is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, China Southern and Nepal Airlines offer the cheapest flight tickets to Kathmandu.

Travelling from Suvarnabhumi Airport (BKK) to Tribhuvan International Airport (KTM): what you need to know

  • The average time for a direct flight from Suvarnabhumi Airport to Tribhuvan International Airport is 3 hours 27 minutes. Kathmandu's timezone is UTC+5:47, which makes Kathmandu 1 hour 12 minutes behind Bangkok.

  • Every week, there are 85 flights from Suvarnabhumi Airport to Tribhuvan International Airport. To jet off as early as possible, go for the 00:25 Thai Airways International flight. If you're keen to make the most of your day before you fly, the latest flight from BKK to KTM is 21:15 with Thai Airways International.

  • Travelling during a popular month like July? Public holidays and other popular periods can mean longer queues and delays at check-in and security. Play things extra safe and get there up to four hours before international flights and two hours before domestic departures.

  • Visiting Kathmandu (and then discovering more of Nepal!) is simple with Thai Airways International. This popular carrier offers direct flights from Suvarnabhumi Airport to Tribhuvan International Airport.

  • If you want a stopover for your flight from Suvarnabhumi Airport to Tribhuvan International Airport, just deselect 'Direct flights only' and look at all your options. Here are the top stopovers between BKK and KTM:

    • Netaji Subhas Chandra Bose Airport

    • Kuala Lumpur International Airport

    • Indira Gandhi International Airport

  • Don't forget, you might need a visa to enter Nepal. Visa regulations can vary and travel documentation requirements often change. Before reserving your cheap ticket from BKK to KTM, check with your airline and your destination country's local embassy or consulate for the latest information.

How to find the cheapest flights from Suvarnabhumi Airport (BKK) to Tribhuvan International Airport (KTM)

  • The best price we've found for a one-way ticket from Suvarnabhumi Airport to Tribhuvan International Airport is ج.م.‏ 8,837. The cheapest price for a return flight is ج.م.‏ 17,172. Keep in mind that fares could change due to availability at the time of booking.

  • Get cheap flight tickets from BKK to KTM by booking 8 months ahead. According to our research, that's the sweet spot for picking up a bargain.

  • April is the cheapest month for flight tickets from Suvarnabhumi Airport to Tribhuvan International Airport. If you're looking to fly at a different time of year, the 'Whole month' tool will show you the lowest airfares for each month.

  • Getting a cheap ticket from BKK to KTM is a breeze with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when the price has dropped.

  • Use filters to tailor your flights from Suvarnabhumi Airport to Tribhuvan International Airport. Pick your ideal arrival and departure times, number of stops and airlines. Or sort your results by 'Cheapest' to get the best deals.

Handy information about Suvarnabhumi Airport (BKK)

  • Located around 32 kilometres from the centre of Bangkok, Suvarnabhumi Airport can be reached in about 35 minutes by car (depending on traffic). The same journey on public transport takes roughly 1 hour and 6 minutes.

  • Looking for a convenient hotel near BKK? If you're catching an early flight from Suvarnabhumi Airport to Tribhuvan International Airport, these stays will have you moments from your departure gate:

Arriving at Tribhuvan International Airport (KTM)

Getting from Tribhuvan International Airport (KTM) to central Kathmandu

  • Tribhuvan International Airport is approximately 5 kilometres from central Kathmandu. With your own car rental or if you take a cab, the drive is about 16 minutes.

When to fly to Tribhuvan International Airport (KTM)

  • October is the busiest month for flights from Suvarnabhumi Airport to Tribhuvan International Airport. To escape the crowds, head to Kathmandu in February.

  • The warmest month in Kathmandu is June, with temperatures ranging between 17 ºC and 28 ºC. Book your flights from Suvarnabhumi Airport to Tribhuvan International Airport in this month if this is the type of weather you enjoy.

  • January sees average temperatures of between 3 ºC and 18 ºC. Look for cheap flight tickets from BKK to KTM sometime then if you like cooler conditions.

More about Kathmandu

  • When it comes to looking for somewhere to lay your head, you'll find the best places to stay in Kathmandu right here. Browse these options after you've booked your flight from BKK to KTM:

  • There are so many things to do and see in this city it can be hard to figure out where to start. Swayambhunath Stupa, Pashupatinath Temple and Boudhanath Stupa are popular attractions which should feature on any good Kathmandu itinerary.

Complete your Kathmandu trip with hotels and a car rental

  • We've got more party tricks up our sleeve than just comparing flights. After booking your cheap ticket to Tribhuvan International Airport, check out our car rental deals that'll give you the flexibility and freedom to travel around at your own pace. Then, take a look at our exclusive rates for hotels to find the perfect Kathmandu stay.

Plan the rest of your trip from Bangkok to Kathmandu

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.