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Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from £141

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Kathmandu Tribhuvan to Bangkok Suvarnabhumi are usually found in July or August, booked 84 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Kathmandu to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 September 2025.

Round-trip from

£229

One-way from

£141

Popular in

April

Cheapest in

July

Average price

£218

Good round-trip deal

£266 or less

Good one-way deal

£277 or less
Thai Airways
  • Thai Airways
  • 23/1-3/2
  • Nonstop
  • 6h 55m total
  • Kathmandu to Bangkok
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IndiGo
  • IndiGo
  • 10/10
  • 1 total stop
  • 30h 20m total
  • Kathmandu to Bangkok
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Highest demand for flights based on searches. 8% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
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Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
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Find flight deals from Kathmandu to Suvarnabhumi

Cheapest flights from Kathmandu to Suvarnabhumi
Explore the most affordable flight options available from Kathmandu to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Wed 1/1014:00KTM - BKK
1 stop29h 10mAir India
Fri 17/1008:40BKK - KTM
1 stop16h 20mAir India
Deal found 16/9£271
Sat 4/1007:35KTM - BKK
1 stop11h 35mAir India
Sat 18/1015:15BKK - KTM
1 stop16h 35mAir India
Deal found 16/9£273
Wed 8/1007:35KTM - BKK
1 stop22h 50mAir India
Sat 18/1017:55BKK - KTM
1 stop13h 55mAir India
Deal found 16/9£287
Tue 30/900:35KTM - BKK
Nonstop3h 30mThai Airways
Fri 17/1021:25BKK - KTM
Nonstop3h 25mThai Airways
Deal found 17/9£317
Fri 3/1000:35KTM - BKK
Nonstop3h 30mThai Airways
Sat 18/1010:15BKK - KTM
Nonstop3h 25mThai Airways
Deal found 17/9£377

Cheapflights Fare Finder

 
Customise your flight search to find flights from Kathmandu to Suvarnabhumi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Kathmandu to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Kathmandu

Fly to

Suvarnabhumi

Route

Depart

Return

Price

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 8/10

07:35-07:40

1 stop22h 50m

Bangkok Suvarnabhumi

Sat 18/10

17:55-06:35

1 stop13h 55m

£287

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 3/10

00:35-05:20

Nonstop3h 30m

Bangkok Suvarnabhumi

Sat 18/10

10:15-12:25

Nonstop3h 25m

£378

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 20/12

13:00-23:10

1 stop8h 55m

Bangkok Suvarnabhumi

Sun 4/1

08:45-12:00

1 stop28h 30m

£475

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 14/12

22:45-16:05

1 stop16h 05m

Bangkok Suvarnabhumi

Fri 2/1

18:40-12:00

1 stop18h 35m

£514

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 30/9

22:50-23:10

1 stop23h 05m

Bangkok Suvarnabhumi

Sat 4/10

00:10-21:35

1 stop22h 40m

£591

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

06:30-06:30

2 stops22h 45m

Bangkok Suvarnabhumi

Mon 6/10

17:00-15:40

2 stops23h 55m

£1,257

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 30/9

16:20-11:55

2 stops18h 20m

Bangkok Suvarnabhumi

Sat 4/10

02:55-23:45

2 stops22h 05m

£1,268

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 2/10

00:20-19:25

1 stop17h 50m

Bangkok Suvarnabhumi

Mon 6/10

03:40-18:25

1 stop16h 00m

£1,320

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 30/9

00:20-19:25

1 stop17h 50m

Bangkok Suvarnabhumi

Sun 5/10

03:40-18:25

1 stop16h 00m

£1,325

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 16/10

10:55-03:00

1 stop14h 50m

£155

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 20 results
1
2

Best time to book a flight from Kathmandu to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Kathmandu with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kathmandu to Bangkok Suvarnabhumi Airport

How far ahead should I book a flight from Kathmandu to Bangkok Suvarnabhumi Airport?

Use this chart to determine the optimal time to book a return flight from Kathmandu to Suvarnabhumi. Price data was last updated on 12 September 2025.

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Kathmandu to Bangkok Suvarnabhumi Airport?

Currently, May is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of £717). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of £1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KTM to BKK?

Find hourly flight availability from Kathmandu to Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

It’s typically best to fly out from Kathmandu to Bangkok Suvarnabhumi Airport in the afternoon. Doing so could potentially save you 52% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from Kathmandu to Bangkok Suvarnabhumi Airport?

Use this chart to determine the cheapest time to fly return from Kathmandu to Suvarnabhumi. Price data was last updated on 14 September 2025.

Travellers seeking maximum savings on their Kathmandu to Bangkok Suvarnabhumi Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Suvarnabhumi. Reviews last updated 18 September 2025.
See what other customers who have flown with Thai Airways and Thai AirAsia from Kathmandu to Bangkok Suvarnabhumi Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
350 reviews
Check prices

Comfort

7.5

Crew

8.3

Food

7.3

Overall

7.8

Entertainment

6.9

Boarding

7.9

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.
Thai Airways
7.8
Good
350 reviews
Thai Airways
7.8
Good
350 reviews
Check prices

Comfort

7.5

Crew

8.3

Food

7.3

Overall

7.8

Entertainment

6.9

Boarding

7.9

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.
Thai AirAsia
7.5
Good
216 reviews
Thai Airways
7.8
Good
350 reviews
Check prices

Comfort

7.5

Crew

8.3

Food

7.3

Overall

7.8

Entertainment

6.9

Boarding

7.9

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Related info for your journey

Find useful and relevant information for your journey from Kathmandu to Suvarnabhumi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Kathmandu to Bangkok Suvarnabhumi?

    Kathmandu Tribhuvan (KTM), located 2.5 mi from the city center, is the airport you fly out of when you book flights from Kathmandu to Bangkok Suvarnabhumi. 4 airlines have flights from Tribhuvan to Bangkok Suvarnabhumi on a regular basis. Booking flights from Kathmandu Tribhuvan to Bangkok Suvarnabhumi should not be difficult; the airport handles an average of 2 outbound flights to Bangkok Suvarnabhumi per day.

  • How long is the flight from Kathmandu to Bangkok Suvarnabhumi Airport?

    A quick flight from Kathmandu to Bangkok Suvarnabhumi Airport can take about 3h 30m. Air India provides one of the quickest options available for as low as £378. Kathmandu and Bangkok Suvarnabhumi Airport are separated by a distance of 1384 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Kathmandu to Bangkok Suvarnabhumi Airport round-trip?

    According to our current data, Thai AirAsia (£147), Thai Lion Air (£158), and Nepal Airlines (£171) offers the cheapest pricing from Kathmandu to Bangkok Suvarnabhumi Airport. Thai AirAsia is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Kathmandu to Bangkok Suvarnabhumi Airport one-way?

    To fly one-way, consider booking your trip with SpiceJet, which is currently one of the cheapest options available, starting at £155. Nepal Airlines flights start at £161 while deals on Malaysia Airlines start at £166 one-way.

  • What are the cheapest flights from Kathmandu to Bangkok Suvarnabhumi Airport?

    Looking at all options, your cheapest flight can be booked for £154. While the most popular route (Kathmandu Tribhuvan - Bangkok Suvarnabhumi) can be booked for £202 on average, our data indicates £469 when flying from Kathmandu to Bangkok Suvarnabhumi Airport.

  • Can I find deals for flights from Kathmandu to Suvarnabhumi that include hotel bookings?

    Yes. In addition to deals on Kathmandu to Suvarnabhumi flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Kathmandu to Suvarnabhumi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Suvarnabhumi.

  • Can I find deals for business class flights from Kathmandu to Suvarnabhumi?

    Yes. Cheapflights offers flight deals from Kathmandu to Suvarnabhumi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kathmandu to Bangkok Suvarnabhumi Airport?

    Currently, May is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of £717). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of £1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Cha-am
Chonburi
Ayutthaya
Ko Samet
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Kathmandu to Suvarnabhumi

Discover the top 4 airlines that operate flights from Kathmandu to Suvarnabhumi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest£147Average£196FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest£158Average£234FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Nepal AirlinesCheapest£171Average£282FlexibilityNo cancel feeOn-timeN/A
Search Nepal Airlines flights
Thai AirwaysCheapest£230Average£301FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Kathmandu to Suvarnabhumi?

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Can Cheapflights find flights from Kathmandu to Suvarnabhumi with no change fees?

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Can Cheapflights notify me if prices for flights from Kathmandu to Suvarnabhumi become cheaper?

Yes! Start tracking prices for Kathmandu to Suvarnabhumi flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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