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Cheap Flights from Kathmandu to Bangkok

Compare Kathmandu to Bangkok flight deals

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

Book the best Bangkok fare with no extra fees

Flight deals from Kathmandu to Bangkok

Looking for a cheap last-minute deal or the best return flight from Kathmandu to Bangkok? Find the lowest prices on one-way and return tickets right here.
Bangkok.ج.م.‏ 4,446 per passenger.Departing Wed, 24 Sep.One-way flight with Thai AirAsia.Outbound direct flight with Thai AirAsia departs from Kathmandu on Wed, 24 Sep, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 4,446, select.
Bangkok.ج.م.‏ 4,503 per passenger.Departing Wed, 7 Jan.One-way flight with Thai AirAsia.Outbound direct flight with Thai AirAsia departs from Kathmandu on Wed, 7 Jan, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 4,503, select.
Bangkok.ج.م.‏ 4,674 per passenger.Departing Wed, 25 Feb.One-way flight with Thai AirAsia.Outbound direct flight with Thai AirAsia departs from Kathmandu on Wed, 25 Feb, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 4,674, select.
Bangkok.ج.م.‏ 4,719 per passenger.Departing Sun, 15 Mar.One-way flight with Thai AirAsia.Outbound direct flight with Thai AirAsia departs from Kathmandu on Sun, 15 Mar, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 4,719, select.
Bangkok.ج.م.‏ 5,806 per passenger.Departing Thu, 23 Oct.One-way flight with Thai LionAir.Outbound direct flight with Thai LionAir departs from Kathmandu on Thu, 23 Oct, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 5,806, select.
Bangkok.ج.م.‏ 5,814 per passenger.Departing Wed, 12 Nov.One-way flight with Thai LionAir.Outbound direct flight with Thai LionAir departs from Kathmandu on Wed, 12 Nov, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 5,814, select.
Bangkok.ج.م.‏ 5,845 per passenger.Departing Mon, 22 Dec.One-way flight with Thai LionAir.Outbound direct flight with Thai LionAir departs from Kathmandu on Mon, 22 Dec, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 5,845, select.
Bangkok.ج.م.‏ 5,912 per passenger.Departing Tue, 5 May.One-way flight with Thai LionAir.Outbound direct flight with Thai LionAir departs from Kathmandu on Tue, 5 May, arriving in Don Mueang.Price includes taxes and charges.From ج.م.‏ 5,912, select.

Find the cheapest month to fly from Kathmandu to Bangkok

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to Bangkok flights are currently cheapest in September.
Sep
from ج.م.‏ 4,446
Oct
from ج.م.‏ 5,806
Nov
from ج.م.‏ 5,814
Dec
from ج.م.‏ 5,845
Jan
from ج.م.‏ 4,503
Feb
from ج.م.‏ 4,674
Mar
from ج.م.‏ 4,719
Apr
from ج.م.‏ 6,436
May
from ج.م.‏ 5,912
Jun
from ج.م.‏ 6,455
Jul
from ج.م.‏ 10,016
Aug
from ج.م.‏ 8,533

Direct flights from Kathmandu to Bangkok

Alternative Kathmandu to Bangkok routes

Looking for the cheapest, fastest or easiest route from Kathmandu to Bangkok? You could fly into the following airports instead.

Kathmandu to Bangkok: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 4,446
Cheapest month to flySeptember
Average flight time3 hrs, 24 mins
Most popular airlineThai Airways
Average flights per week30

Finding cheap flights from Kathmandu to Bangkok: Frequently asked questions

There are 2 airports in Bangkok: Don Mueang and Bangkok Suvarnabhumi.
The best price we found for a return flight from Kathmandu to Bangkok is ج.م.‏ 10,088. 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 23 minutes is the average flight time from Kathmandu to Bangkok.
Thai Airways, Thai LionAir and Thai AirAsia fly direct from Kathmandu to Bangkok.
As of September 2025, there are 46 flights per week flying from Kathmandu to Bangkok.
The cheapest month to fly from Kathmandu to Bangkok is usually January.
If you're flying from Kathmandu Airport, the cheapest airport near Bangkok is Don Mueang – which is 21.5 km away from the centre of Bangkok. We've found flights into this airport from ج.م.‏ 10,088.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Bangkok on Monday, 12 January 2026.
Yes – the average flight time is 3 hours and 23 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 Bangkok 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 Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.
In September, the average temperature is usually around 28°C. April is typically the warmest month in Bangkok, when it usually averages around 35°C. You can expect the least rain in December. The coldest month is November, with temperatures averaging 22°C. The rainiest month is September.
Currently, Thai AirAsia offers the cheapest flight tickets to Bangkok.

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

  • Jump on a direct flight from Tribhuvan International Airport to Bangkok and you'll be travelling for an average of 3 hours 25 minutes.

  • The timezone in Bangkok is UTC+7. The city is one hour 12 minutes ahead of Kathmandu, where Tribhuvan International Airport is located.

  • With 17 weekly flights between the two airports, Tribhuvan International Airport (KTM) to Suvarnabhumi Airport (BKK) is the most popular route. Thai Airways International operates the earliest flight at 00:25. If you prefer to make the most of your day before jetting off, the last flight from KTM to BKK is with Thai Airways International at 22:30.

  • To avoid rushing for your KTM to Bangkok flight, allow plenty of time to navigate the airport and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • If you're heading away during a bank holiday or another peak period, give yourself more time. A good general rule is two hours before domestic flights and up to four hours before international departures. Lines at security and check-in will be longer.

  • Direct Tribhuvan International Airport to Bangkok tickets are available for booking. Suvarnabhumi Airport (BKK) is where you'll step off the plane.

  • You'll find a variety of airlines offering direct flights from Tribhuvan International Airport to Bangkok, including:

  • We make it simple to book flight tickets from KTM to Bangkok with a stopover. To see all the options, uncheck 'Direct flights only.' Next, pick a flight with a stop long enough to tour your chosen city. Some popular stopovers include:

    • Guangzhou Baiyun International Airport (CAN)

    • Indira Gandhi International Airport (DEL)

    • Kuala Lumpur International Airport (KUL)

  • KTM is around 3 kilometres from central Kathmandu. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 15 minutes or so to arrive, depending on traffic conditions.

  • Searching for a hotel near KTM? If you've booked an early flight from Tribhuvan International Airport to Bangkok, these stays will put you moments from your departure lounge:

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

  • ج.م.‏ 4,446 is currently the best price for a one-way Tribhuvan International Airport to Bangkok flight. A return flight ticket starts at ج.م.‏ 10,088. These prices can change based on availability.

  • To secure cheap flights from KTM to Bangkok, book your journey three months before your departure.

  • The best month for finding cheap Tribhuvan International Airport to Bangkok tickets is July. Use the 'Whole month' tool to compare flight prices, then choose the dates that offer the biggest savings.

  • Picking up a cheap flight from KTM to Bangkok is a breeze with Price Alerts. All you need to do is create one of these automatic notifications and we'll notify you as soon as a new discount appears.

  • Save money on your flight from Tribhuvan International Airport to Bangkok with the help of our filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Bangkok

Suvarnabhumi Airport (BKK)

  • Suvarnabhumi Airport (BKK) to the centre of Bangkok takes around 35 minutes to reach by car. The centre is roughly 32 kilometres away.

  • It'll take around 1 hour 5 minutes to get there by public transport.

  • Look into staying at a hotel close to BKK if you're coming in on a late flight from Tribhuvan International Airport to Bangkok. Choose one of these accommodation options and make your first night all about catching up on rest:

  • Grab a Suvarnabhumi Airport rental car and explore Bangkok and beyond with your own set of wheels. Chic Car Rent, asap car hire and Hertz are popular outlets you can book with here.

  • Get the best deal by booking your vehicle from Suvarnabhumi Airport around four weeks in advance of your flight from KTM to Bangkok.

Don Mueang International Airport (DMK)

  • Don Mueang International Airport (DMK) is around 27 kilometres from the centre of Bangkok. Once you've disembarked your flight from Tribhuvan International Airport to Bangkok, it'll take you around 30 minutes to get to the heart of the city in a cab or ride-share.

  • If you choose to travel on public transport, the journey will take you 1 hour 5 minutes or so.

  • Following your KTM to Bangkok flight, kick back at a hotel close to DMK. These are some comfortable options that'll help you sink into relaxation mode:

  • The quickest way to get to where you're going is with a Don Mueang International Airport rental car. Pick up a set of wheels from Chic Car Rent, asap car hire or Hertz and be on your way in a flash.

  • Lock in the lowest price by reserving your ride from DMK three weeks in advance. You can also expect to have a greater range of vehicles.

Best time to go to Bangkok

  • Travel to Bangkok during peak season if you like a bustling atmosphere, but remember that hotel prices are typically higher. Alternatively, book flights from Tribhuvan International Airport to Bangkok during low season when prices are cheaper and crowds are smaller.

  • The warmest month in Bangkok is April, with temperatures ranging between 26ºC and 37ºC. Lock in your Tribhuvan International Airport to Bangkok flight ticket then if that's your ideal forecast.

  • If you like cooler conditions, search for a cheap ticket from KTM to Bangkok in December when temperatures average between 19ºC and 33ºC.

More about Bangkok

  • Once you've booked your flight from Tribhuvan International Airport to Bangkok, choose a hotel that combines comfort with a great location. Make one of these accommodation options your base for exploring Bangkok:

  • There are so many things to explore in this city it can be difficult to know where to start. Wat Arun, Grand Palace and Wat Phra Kaew are highlights which should be on any well-planned Bangkok itinerary.

Explore more of Thailand

  • Bangkok has plenty going for it, but there are so many other parts of Thailand just waiting to be explored. About 467 kilometres north-east of Bangkok, a trip to Udon Thani will keep your itinerary packed. Start with popular sights like Nong Prajak Public Park, Krom Luang Prachaksinlapakhom Monument and Chinesisches Tor.

  • If you're ready to explore another side of Thailand, consider Nakhon Ratchasima, roughly 225 kilometres north-east of Bangkok. Art and Culture Centre, Vongchavalitkul University, Wat Pa Salwan (Burapha Chan Chedi) and บ้านสวนเกษตรอินทรีย์ (บ้านสวนในซอย) are key reasons to visit.

More travel options

Plan the rest of your trip from Kathmandu to Bangkok

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