Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from £159

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags
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 Sunday or Friday and return on a Monday

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 22 January 2026.

Wed 18/313:40
KTM
-
BKK
1 stop15h 25m
SriLankan Airlines
Sun 22/313:55
BKK
-
KTM
1 stop23h 10m
SriLankan Airlines
Deal found 21/1£196
Mon 26/100:25
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Tue 3/210:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 21/1£225
Sun 8/313:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Sun 15/310:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 22/1£226
Tue 17/300:25
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Sun 22/310:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 21/1£228
Tue 16/622:45
KTM
-
BKK
1 stop13h 25m
Malaysia Airlines
Thu 25/618:40
BKK
-
KTM
1 stop18h 35m
Malaysia Airlines
Deal found 21/1£240
Wed 18/211:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 27/216:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 19/1£245
Tue 16/613:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Thu 25/610:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 21/1£254
Sun 8/312:50
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
Sun 15/313:55
BKK
-
KTM
1 stop23h 10m
SriLankan Airlines
Deal found 22/1£255
Fri 13/206:35
KTM
-
BKK
1 stop9h 05m
Air India
Fri 20/208:50
BKK
-
KTM
1 stop16h 40m
Air India
Deal found 21/1£274
Tue 27/113:15
KTM
-
BKK
1 stop29h 20m
IndiGo
Tue 3/215:30
BKK
-
KTM
1 stop22h 00m
IndiGo
Deal found 21/1£275
Wed 18/213:40
KTM
-
BKK
1 stop21h 40m
Multiple Airlines
Fri 27/210:50
BKK
-
KTM
1 stop10h 30m
Multiple Airlines
Deal found 19/1£280
Tue 17/321:05
KTM
-
BKK
1 stop15h 50m
Air India
Sun 22/317:55
BKK
-
KTM
1 stop13h 55m
Air India
Deal found 21/1£281

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 22 January 2026.

Round-trip from

£196

One-way from

£159

Popular in

April

Cheapest in

July

Average price

£220

Good round-trip deal

£260 or less

Good one-way deal

£177 or less
SriLankan Airlines
  • SriLankan Airlines
  • 18/3-22/3
  • 2 total stops
  • 38h 35m total
  • Kathmandu to Bangkok
Malaysia Airlines
  • Malaysia Airlines
  • 31/5
  • 1 total stop
  • 17h 20m total
  • Kathmandu to Bangkok
Highest demand for flights based on searches. 14% potential increase in price (£26 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.

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 22 January 2026.
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 18/3

13:40-06:20

1 stop15h 25m

Bangkok Suvarnabhumi

Sun 22/3

13:55-11:50

1 stop23h 10m

£196

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 17/3

00:25-05:10

Nonstop3h 30m

Bangkok Suvarnabhumi

Sun 22/3

10:15-12:25

Nonstop3h 25m

£228

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 16/6

22:45-13:25

1 stop13h 25m

Bangkok Suvarnabhumi

Thu 25/6

18:40-12:00

1 stop18h 35m

£240

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 16/6

13:30-18:15

Nonstop3h 30m

Bangkok Suvarnabhumi

Thu 25/6

10:15-12:25

Nonstop3h 25m

£254

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 18/3

21:05-14:10

1 stop15h 50m

Bangkok Suvarnabhumi

Sun 22/3

17:55-09:05

1 stop16h 25m

£281

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 18/2

13:40-12:35

1 stop21h 40m

Bangkok Suvarnabhumi

Fri 27/2

10:15-12:25

Nonstop3h 25m

£287

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 13/2

17:10-19:50

1 stop25h 25m

Bangkok Suvarnabhumi

Fri 20/2

16:10-06:35

2 stops15h 40m

£307

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 17/3

06:35-16:55

1 stop9h 05m

Bangkok Suvarnabhumi

Sun 22/3

22:30-09:05

2 stops11h 50m

£318

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 23/4

22:45-17:20

1 stop17h 20m

Bangkok Suvarnabhumi

Sat 2/5

19:20-21:45

2 stops27h 40m

£365

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 24/4

22:45-14:30

1 stop14h 30m

Bangkok Suvarnabhumi

Sat 2/5

19:20-21:45

2 stops27h 40m

£365

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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 16 January 2026.

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, August is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of £95). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in April is currently the most expensive (average of £161). 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 22 January 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?

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 22 January 2026.
See what other customers who have flown with Thai Airways, Thai AirAsia, andThai Lion Air 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.

Overall

7.8

Crew

8.3

Food

7.3

Comfort

7.6

Boarding

7.9

Entertainment

6.8

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

Overall

7.8

Crew

8.3

Food

7.3

Comfort

7.6

Boarding

7.9

Entertainment

6.8

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

Overall

7.8

Crew

8.3

Food

7.3

Comfort

7.6

Boarding

7.9

Entertainment

6.8

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

Overall

7.8

Crew

8.3

Food

7.3

Comfort

7.6

Boarding

7.9

Entertainment

6.8

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?

    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. SriLankan Airlines provides one of the quickest options available for as low as £228. 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 (£124), Thai Lion Air (£146), and Nepal Airlines (£211) offers the cheapest pricing from Kathmandu to Bangkok Suvarnabhumi Airport. Thai AirAsia is priced at 42% 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 Thai AirAsia, which is currently one of the cheapest options available, starting at £77. Thai Lion Air flights start at £86 while deals on Nepal Airlines start at £136 one-way.

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

    Looking at all options, your cheapest flight can be booked for £161. While the most popular route (Kathmandu Tribhuvan - Bangkok Suvarnabhumi) can be booked for £206 on average, our data indicates £365 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, August is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of £95). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in April is currently the most expensive (average of £161). 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
Kanchanaburi
Chonburi
Ko Samet
Pak Chong
Ayutthaya
Sattahip
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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest£124Average£189FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest£146Average£186FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Nepal AirlinesCheapest£211Average£252FlexibilityNo cancel feeOn-timeN/A
Search Nepal Airlines flights
Thai AirwaysCheapest£236Average£283FlexibilityNo 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?

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?

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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