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Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from C$ 337

KTM — BKK
8 Oct — 15 Oct1
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

Fri 18/121:30 p.m. -
Nonstop3h 30m
Sat 2/19:15 p.m. -
Nonstop3h 25m
Deal found 7/9C$ 563
Fri 18/1211:10 a.m. -
Nonstop3h 20m
Sat 2/110:20 p.m. -
1 stop9h 30m
Deal found 7/9C$ 629
Fri 18/126:30 a.m. -
1 stop23h 20m
Sat 2/13:10 p.m. -
1 stop19h 10m
Deal found 7/9C$ 632
Mon 5/1011:10 a.m. -
Nonstop3h 20m
Mon 12/104:45 p.m. -
Nonstop3h 30m
Deal found 6/9C$ 662
Mon 5/107:35 a.m. -
1 stop8h 05m
Mon 12/105:55 p.m. -
1 stop13h 55m
Deal found 6/9C$ 715
Mon 5/106:30 a.m. -
1 stop12h 40m
Mon 12/104:45 p.m. -
Nonstop3h 30m
Deal found 6/9C$ 737
Wed 2/121:00 p.m. -
1 stop8h 55m
Sun 13/1211:10 a.m. -
1 stop11h 50m
Deal found 3/9C$ 760
Fri 4/121:00 p.m. -
1 stop29h 05m
Sun 13/1211:10 a.m. -
1 stop11h 50m
Deal found 3/9C$ 763
Wed 2/121:00 p.m. -
1 stop8h 55m
Mon 14/126:40 p.m. -
1 stop28h 20m
Deal found 3/9C$ 767
Fri 4/121:00 p.m. -
1 stop29h 05m
Mon 14/126:40 p.m. -
1 stop28h 20m
Deal found 3/9C$ 770
Sun 13/1210:45 p.m. -
1 stop23h 10m
Fri 18/122:15 p.m. -
1 stop8h 45m
Deal found 3/9C$ 784
Mon 14/121:00 p.m. -
1 stop25h 50m
Thu 24/128:05 p.m. -
1 stop17h 10m
Deal found 3/9C$ 796

Find flight deals from Kathmandu to Suvarnabhumi

Round-trip from

C$ 563

One-way from

C$ 337

Popular in

May

Cheapest in

March

Average price

C$ 478

Good one-way deal

C$ 974 or less
Thai Airways
  • Thai Airways
  • 18/12-2/1
  • Nonstop
  • 6h 55m total
  • Kathmandu to Bangkok
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Air India Express
  • Air India Express
  • 21/11-31/12
  • 1 total stop
  • 23h 20m total
  • Kathmandu to Bangkok
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Highest demand for flights based on searches. 10% potential increase in price (C$ 70 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
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Cheapflights Fare Finder

 
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 round-trip

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Fri 25/9

10:45 p.m.-8:55 a.m.

2 stops32h 55m

Bangkok Suvarnabhumi

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 499

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 9/11

10:55 p.m.-10:50 a.m.

1 stop34h 40m

Bangkok Suvarnabhumi

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 550
Quickest round-trip

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 21/11

1:30 p.m.-6:15 p.m.

Nonstop3h 30m

Bangkok Suvarnabhumi

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 611

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 28/12

1:00 p.m.-8:50 a.m.

2 stops18h 35m

Bangkok Suvarnabhumi

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 616

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Fri 9/10

10:45 p.m.-8:55 a.m.

2 stops32h 55m

Bangkok Suvarnabhumi

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 626

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Wed 2/12

1:00 p.m.-11:10 p.m.

1 stop8h 55m

Bangkok Suvarnabhumi

Mon 14/12

6:40 p.m.-9:45 p.m.

1 stop28h 20m

C$ 767

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 14/12

1:00 p.m.-5:40 p.m.

1 stop27h 25m

Bangkok Suvarnabhumi

Tue 22/12

8:10 p.m.-12:00 p.m.

1 stop17h 05m

C$ 796

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 6/3

1:00 p.m.-11:10 p.m.

1 stop8h 55m

Bangkok Suvarnabhumi

Mon 8/3

5:40 a.m.-9:45 p.m.

1 stop17h 20m

C$ 802

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 6/3

1:00 p.m.-1:25 p.m.

1 stop23h 10m

Bangkok Suvarnabhumi

Sun 7/3

7:30 p.m.-9:45 p.m.

2 stops27h 30m

C$ 813

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 5/12

1:00 p.m.-11:10 p.m.

1 stop8h 55m

Bangkok Suvarnabhumi

Thu 10/12

5:40 a.m.-9:45 p.m.

1 stop17h 20m

C$ 842

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 22 resultsSorted by cheapest first
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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 round-trip price

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 77 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 C$ 359). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of C$ 578). 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?

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 to fly round-trip from Kathmandu to Bangkok Suvarnabhumi Airport?

Airfare is above average for this route at the moment.

Kathmandu to Bangkok Suvarnabhumi Airport flights typically cost between C$ 405 and C$ 535 in December.
The cheapest round-trip price found within the last 5 days was C$ 563 on Thai Airways (18 Dec-2 Jan).

Reviews of airlines servicing Suvarnabhumi

See what other customers who have flown with Thai Airways 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
7.9
Good
418 reviews
Check prices

Crew

8.5

Food

7.5

Comfort

7.7

Overall

7.9

Entertainment

6.9

Boarding

8.0

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
418 reviews
Thai Airways
7.9
Good
418 reviews
Check prices

Crew

8.5

Food

7.5

Comfort

7.7

Overall

7.9

Entertainment

6.9

Boarding

8.0

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

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

    Kathmandu Tribhuvan (KTM) is the airport you will fly out of if you book a flight from Kathmandu to Bangkok Suvarnabhumi. You should not have trouble finding flights to Bangkok Suvarnabhumi from Tribhuvan; the airport handles an average of 1 outbound flight to Bangkok Suvarnabhumi per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Kathmandu airport to Bangkok Suvarnabhumi. It is only a 4.1 km journey to Tribhuvan (KTM) from Kathmandu’s city centre.

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

    Malaysia Airlines can get you from Kathmandu to Bangkok Suvarnabhumi Airport in just under 8h 55m. Your travel time can differ by up to . Kathmandu and Bangkok Suvarnabhumi Airport are separated by a distance of 2227 km.

  • What is the cheapest airline to fly from Kathmandu to Bangkok Suvarnabhumi Airport round-trip?

    Currently priced at C$ 451, Thai Airways will fly you from Kathmandu to Bangkok Suvarnabhumi Airport and back. In addition to Thai Airways, many other airlines offer competitively priced options for your trip. Thai Airways is priced at 1% 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?

    The cheapest airline one-way is Thai AirAsia, with whom users have recently found tickets for as low as C$ 121. However, be on the lookout for offers from Thai Lion Air and Nepal Airlines, as they are both options that can get you from Kathmandu to Bangkok Suvarnabhumi Airport for a low price.

  • 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 vacation 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 C$ 359). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of C$ 578). 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 Lan
Cha-am
Ko Samet

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Kathmandu to Suvarnabhumi

AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapestC$ 451AverageC$ 494FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

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