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Cheap Flights from Kathmandu to Bangkok Suvarnabhumi

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      Travellers and cabin class, 1 Adult, Economy
      Thai Airways
      Nepal Airlines
      Himalaya Airlines

      Compare Kathmandu to Bangkok Suvarnabhumi flight deals

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

      Book the best Bangkok Suvarnabhumi fare with no extra fees

      Flight deals from Kathmandu to Bangkok Suvarnabhumi

      Looking for a cheap last-minute deal or the best return flight from Kathmandu Airport to Bangkok Suvarnabhumi Airport? If you want to travel next month, return fares start from Rs91,779. Find the lowest prices on one-way and return tickets right here.
      Bangkok.Rs50,219 per passenger.Departing Mon, 25 Jan.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Mon, 25 Jan, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs50,219, select.
      Bangkok.Rs50,312 per passenger.Departing Mon, 15 Feb.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Mon, 15 Feb, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs50,312, select.
      Bangkok.Rs50,551 per passenger.Departing Thu, 22 Jul.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Thu, 22 Jul, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs50,551, select.
      Bangkok.Rs50,651 per passenger.Departing Mon, 1 Mar.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Mon, 1 Mar, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs50,651, select.
      Bangkok.Rs51,390 per passenger.Departing Thu, 8 Apr.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Thu, 8 Apr, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs51,390, select.
      Bangkok.Rs51,423 per passenger.Departing Mon, 9 Aug.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Mon, 9 Aug, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs51,423, select.
      Bangkok.Rs52,255 per passenger.Departing Thu, 31 Dec.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Thu, 31 Dec, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs52,255, select.
      Bangkok.Rs54,934 per passenger.Departing Fri, 25 Sep.One-way flight with Nepal Airlines.Outbound direct flight with Nepal Airlines departs from Kathmandu on Fri, 25 Sep, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs54,934, select.
      Bangkok.Rs55,563 per passenger.Departing Wed, 21 Oct.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Kathmandu on Wed, 21 Oct, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs55,563, select.
      Bangkok.Rs58,413 per passenger.Departing Fri, 12 Feb.One-way flight with Thai Airways.Outbound direct flight with Thai Airways departs from Kathmandu on Fri, 12 Feb, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs58,413, select.
      Bangkok.Rs58,413 per passenger.Departing Sun, 24 Jan.One-way flight with Thai Airways.Outbound direct flight with Thai Airways departs from Kathmandu on Sun, 24 Jan, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs58,413, select.
      Bangkok.Rs58,477 per passenger.Departing Thu, 17 Dec.One-way flight with Thai Airways.Outbound direct flight with Thai Airways departs from Kathmandu on Thu, 17 Dec, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs58,477, select.
      Bangkok.Rs59,381 per passenger.Departing Wed, 14 Oct.One-way flight with Thai Airways.Outbound direct flight with Thai Airways departs from Kathmandu on Wed, 14 Oct, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs59,381, select.
      Bangkok.Rs59,484 per passenger.Departing Mon, 2 Nov.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Mon, 2 Nov, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs59,484, select.
      Bangkok.Rs61,162 per passenger.Departing Fri, 20 Aug.One-way flight with Thai Airways.Outbound direct flight with Thai Airways departs from Kathmandu on Fri, 20 Aug, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs61,162, select.
      Bangkok.Rs62,366 per passenger.Departing Wed, 12 May.One-way flight with Air India.Outbound indirect flight with Air India, departs from Kathmandu on Wed, 12 May, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From Rs62,366, select.

      Find the cheapest month to fly from Kathmandu to Bangkok Suvarnabhumi

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to Bangkok Suvarnabhumi flights are currently cheapest in January.
      Sep
      from Rs54,934
      Oct
      from Rs55,563
      Nov
      from Rs59,484
      Dec
      from Rs52,255
      Jan
      from Rs50,219
      Feb
      from Rs50,312
      Mar
      from Rs50,651
      Apr
      from Rs51,390
      May
      from Rs62,366
      Jun
      from Rs67,817
      Jul
      from Rs50,551
      Aug
      from Rs51,423

      Direct flights from Kathmandu to Bangkok Suvarnabhumi

      Himalaya Airlines
      Nepal Airlines
      Thai Airways

      Kathmandu to Bangkok Suvarnabhumi: Alternative routes

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

      Don Mueang

      21km from central Bangkok
      ClosestCheapest
      from Rs45,552
      Search flights

      Bangkok Suvarnabhumi

      29km from central Bangkok
      from Rs50,219
      Search flights

      Kathmandu to Bangkok: Flight information

      The things to know before you go.
      Cheapest flight foundRs50,219
      Cheapest month to flyJanuary
      Average flight time3 hrs, 26 mins
      Most popular airlineThai Airways
      Average flights per week18

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

      The best price we found for a return flight from Kathmandu to Bangkok Suvarnabhumi is Rs85,576. 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 26 minutes is the average flight time from Kathmandu to Bangkok Suvarnabhumi.
      Thai Airways, Nepal Airlines and Himalaya Airlines fly direct from Kathmandu to Bangkok Suvarnabhumi.
      As of September 2026, there are 18 flights per week flying from Kathmandu to Bangkok Suvarnabhumi.
      The cheapest month to fly from Kathmandu to Bangkok Suvarnabhumi is usually January.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Bangkok Suvarnabhumi Airport on Wednesday, 6 January 2027.
      Yes – the average flight time is 3 hours and 26 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 Suvarnabhumi 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.

      Currently, SriLankan Airlines and Nepal Airlines offer the cheapest flight tickets to Bangkok Suvarnabhumi.

      Flying from Kathmandu Airport (KTM) to Bangkok Suvarnabhumi Airport (BKK): what you need to know

      • Around 3 hours 30 minutes is how long you can expect to be in the air on a direct flight from Kathmandu Airport to Bangkok Suvarnabhumi Airport.

      • The timezone in Bangkok is UTC+7, which is one hour 12 minutes ahead of Kathmandu.

      • Flights from KTM to BKK start at 00:25 — the first with Thai Airways International. The latest departure is at 22:30 with Thai Airways International. Overall, you can take your pick of 16 weekly Kathmandu Airport to Bangkok Suvarnabhumi Airport flights.

      • Get to the airport on time so you don't miss your KTM to BKK flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

      • Flying during a peak time like November? School holidays and other popular periods can mean longer lines at security. Play things extra safe and get there up to four hours ahead of an international flight and two hours before domestic departures.

      • Travelling to Bangkok (and then exploring more of Thailand!) is easy with Thai Airways. This popular airline has direct flights from Kathmandu Airport to Bangkok Suvarnabhumi Airport.

      • Thai Airways is the airline with the highest passenger demand for this route.

      • Among carriers operating KTM to BKK flights, Nepal Airlines is the most consistent for on-time landings.

      • If you'd like to break up your flight, just deselect 'Direct flights only' when searching for your ticket from Kathmandu Airport to Bangkok Suvarnabhumi Airport. These are the top stopovers between KTM and BKK:

        • Delhi Indira Gandhi International Airport

        • Kuala Lumpur International Airport

        • Hong Kong Intl Airport

      How to find the cheapest flights from Kathmandu Airport (KTM) to Bangkok Suvarnabhumi Airport (BKK)

      • The lowest price we've found for a one-way Kathmandu Airport to Bangkok Suvarnabhumi Airport flight is Rs50,219. A round-trip ticket is currently Rs85,576. Depending on the availability and when you book, these fares could change.

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

      • The cheapest month for flights from Kathmandu Airport to Bangkok Suvarnabhumi Airport is July. Use the 'Whole month' tool to see the lowest prices if you have a flexible travel schedule.

      • Cut down on the time spent looking for cheap flights from KTM to BKK by creating a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

      • Choose your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Kathmandu Airport to Bangkok Suvarnabhumi Airport.

      Handy information about Kathmandu Airport (KTM)

      • Of the flights that depart from Kathmandu Airport, 51% land on time at their destination.

      • To get to Kathmandu Airport from central Kathmandu, it takes around 30 minutes if you're going by car. This depends on traffic, however. It's approximately 6 kilometres from the airport to the city centre.

      • Catching public transport? Expect a trip time of around 40 minutes.

      • Have an early flight from Kathmandu Airport to Bangkok Suvarnabhumi Airport? Avoid the hassle of rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these hotels near KTM:

      Arriving at Bangkok Suvarnabhumi Airport (BKK)

      When to fly to Bangkok Suvarnabhumi Airport (BKK)

      • It's time to plan your trip dates for your flight from Kathmandu Airport to Bangkok Suvarnabhumi Airport. January is the busiest month to visit Bangkok. If you'd like a more low-key vibe, go in March.

      • Lock in your flight from Kathmandu Airport to Bangkok Suvarnabhumi Airport for April if you want to visit Bangkok during its warmest month. Expect temperatures of between 26ºC and 37ºC.

      • January sees average temperatures of between 19ºC and 34ºC. Look for cheap tickets from KTM to BKK sometime then if you'd rather travel in cooler conditions.

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      Plan the rest of your trip from Kathmandu to Bangkok

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.