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Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from ₹ 18,793

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kathmandu to Suvarnabhumi

Enter your travel dates to find the best prices.

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 14 August 2026.

Thu 10/913:30 -
Nonstop3h 30m
Thu 17/921:15 -
Nonstop3h 25m
Deal found 11/8₹ 32,339
Sun 13/900:25 -
Nonstop3h 30m
Tue 22/921:15 -
Nonstop3h 25m
Deal found 10/8₹ 32,434
Thu 10/906:30 -
1 stop9h 10m
Thu 17/907:30 -
1 stop13h 55m
Deal found 11/8₹ 35,487
Fri 11/910:05 -
1 stop9h 05m
Wed 16/907:30 -
1 stop10h 15m
Deal found 11/8₹ 35,678
Mon 14/906:30 -
2 stops29h 55m
Tue 22/914:40 -
2 stops19h 40m
Deal found 10/8₹ 37,395
Wed 26/806:30 -
1 stop12h 40m
Sun 30/822:25 -
1 stop26h 55m
Deal found 13/8₹ 38,444
Sat 22/806:30 -
1 stop12h 40m
Sun 30/807:30 -
1 stop24h 20m
Deal found 11/8₹ 38,539
Fri 2/1011:10 -
Nonstop3h 20m
Fri 9/1016:45 -
Nonstop3h 30m
Deal found 11/8₹ 39,684
Tue 11/800:25 -
Nonstop3h 30m
Sat 22/821:15 -
Nonstop3h 25m
Deal found 11/8₹ 40,066
Sun 16/813:30 -
Nonstop3h 30m
Sat 29/810:15 -
Nonstop3h 25m
Deal found 11/8₹ 41,020

Find 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 14 August 2026.

Round-trip from

₹ 32,339

One-way from

₹ 18,793

Popular in

May

Cheapest in

March

Average price

₹ 31,671

Good round-trip deal

₹ 70,222 or less

Good one-way deal

₹ 26,188 or less
Thai Airways
  • Thai Airways
  • 10/9-17/9
  • Nonstop
  • 6h 55m total
  • Kathmandu to Bangkok
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Air India
  • Air India
  • 3/9
  • 2 total stops
  • 18h 55m total
  • Kathmandu to Bangkok
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 469,333 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (₹ 82,524 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
Search Deals
Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
Search Deals

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 454,620 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from Kathmandu to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 21/9

17:30-14:15

1 stop19h 30m

Bangkok Suvarnabhumi

Thu 24/9

07:30-13:40

1 stop7h 25m

₹ 35,487

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Wed 26/8

06:30-20:25

1 stop12h 40m

Bangkok Suvarnabhumi

Sun 30/8

22:25-00:05

1 stop26h 55m

₹ 38,444

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sun 13/9

22:45-16:20

1 stop16h 20m

Bangkok Suvarnabhumi

Tue 24/11

20:05-12:00

1 stop17h 10m

₹ 53,802

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 7/9

13:00-23:05

1 stop8h 50m

Bangkok Suvarnabhumi

Mon 23/11

20:05-21:45

1 stop26h 55m

₹ 57,141

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Thu 10/9

22:45-13:25

1 stop13h 25m

Bangkok Suvarnabhumi

Sun 22/11

20:05-12:00

1 stop17h 10m

₹ 59,431

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 10/10

13:00-23:05

1 stop8h 50m

Bangkok Suvarnabhumi

Fri 23/10

19:20-21:45

2 stops51h 40m

₹ 59,431

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Fri 25/9

13:00-23:05

1 stop8h 50m

Bangkok Suvarnabhumi

Thu 1/10

16:40-21:45

1 stop30h 20m

₹ 61,434

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 12/10

22:45-17:20

1 stop17h 20m

Bangkok Suvarnabhumi

Tue 20/10

19:20-21:45

2 stops51h 40m

₹ 62,769

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Fri 25/9

13:00-08:55

2 stops18h 40m

Bangkok Suvarnabhumi

Wed 30/9

16:40-21:45

1 stop30h 20m

₹ 64,773

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 21/9

13:00-23:05

1 stop8h 50m

Bangkok Suvarnabhumi

Sat 26/9

18:40-21:45

1 stop28h 20m

₹ 67,730

Flights are sorted by cheapest return flights first.

Deals found on 10/8

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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?

The best time to book flights from Kathmandu to Bangkok Suvarnabhumi Airport is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 24,612). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 39,779). 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 14 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kathmandu to Bangkok Suvarnabhumi Airport as you normally would.

How much does it cost for a return flight from Kathmandu to Bangkok Suvarnabhumi Airport?

Airfare is typical for this route at the moment.

Kathmandu to Bangkok Suvarnabhumi Airport flights typically cost between ₹ 24,803 and ₹ 34,819 in September.
The cheapest return price found within the last 5 days was ₹ 32,339 on Thai Airways (10 Sept–17 Sept).

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 14 August 2026.
Read reviews from past customers who have flown with Thai Airways,Thai AirAsia, andThai Lion Air from Kathmandu to Bangkok Suvarnabhumi Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.9
Good
414 reviews
Check prices

Boarding

8.0

Crew

8.4

Comfort

7.7

Overall

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.9
Good
414 reviews
Thai Airways
7.9
Good
414 reviews
Check prices

Boarding

8.0

Crew

8.4

Comfort

7.7

Overall

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai AirAsia
7.4
Good
246 reviews
Thai Airways
7.9
Good
414 reviews
Check prices

Boarding

8.0

Crew

8.4

Comfort

7.7

Overall

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Lion Air
7.0
Good
46 reviews
Thai Airways
7.9
Good
414 reviews
Check prices

Boarding

8.0

Crew

8.4

Comfort

7.7

Overall

7.9

Entertainment

6.9

Food

7.5

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

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?

    Located just 4.1 km from the city centre, Kathmandu Tribhuvan is the airport most travellers will use when flying to Bangkok Suvarnabhumi from Kathmandu. Booking flights from Tribhuvan (KTM) to Bangkok Suvarnabhumi should be relatively easy as there are 2 daily outbound flights to Bangkok Suvarnabhumi from 3 different airlines.

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

    Departing from Kathmandu to Bangkok Suvarnabhumi Airport will take you 16h 20m. The distance between Kathmandu and Bangkok Suvarnabhumi Airport is about 2227 km. 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?

    Flying on Thai AirAsia is currently your cheapest option to Bangkok Suvarnabhumi Airport, with prices starting at ₹ 15,980. Additional round-trip tickets that might be worth considering are offered by Thai Lion Air and Thai Airways, with the lowest prices starting at ₹ 18,114 and ₹ 29,691, respectively. Thai AirAsia is currently priced 47% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Thai Lion Air. According to our data, you can fly for as low as ₹ 10,475. Users have also found prices from ₹ 11,506 and ₹ 14,101 on Thai AirAsia and Nepal Airlines, respectively.

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

    While on average a flight from Kathmandu to Bangkok Suvarnabhumi Airport is generally ₹ 68,212, our data shows the cheapest flight currently is ₹ 19,936. When looking at the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), you can expect to pay ₹ 32,720 for that flight.

  • 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, March is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 24,612). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 39,779). 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
Ko Samet
Chonburi

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Kathmandu to Suvarnabhumi

Discover the top 3 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 454,620 searches. Data last updated 14 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest₹ 15,980Average₹ 23,799FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest₹ 18,114Average₹ 21,655FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirwaysCheapest₹ 29,691Average₹ 35,184FlexibilityNo 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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Suvarnabhumi from Kathmandu today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Kathmandu to Suvarnabhumi?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Suvarnabhumi from Kathmandu.

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

Yes, we can. To see specific flights from Kathmandu to Suvarnabhumi with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Kathmandu to Suvarnabhumi on Cheapflights with our Price Alert feature and get notified when better prices are available.

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