฿6,660 Cheap SriLankan Airlines flights from Bangkok to Kathmandu (BKK→KTM)

View ฿6,660 flight on Wed, 5 Nov 2025Opens in a new window

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SriLankan Airlines flights from Bangkok to Kathmandu (BKK→KTM)

Prices were available within the past 7 days and start at ฿6,660 for one-way flights and ฿12,535 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

SriLankan Airlines
Thu, 5 Feb - Sun, 8 Feb
BKK
Bangkok
KTM
Kathmandu
฿12,535 Return, found 6 days ago
฿12,535
Return
found 6 days ago
Select SriLankan Airlines flight, departing Thu, 5 Feb from Bangkok to Kathmandu, returning Sun, 8 Feb, priced at ฿12,535 found 6 days ago
SriLankan Airlines
Thu, 5 Mar - Thu, 12 Mar
BKK
Bangkok
KTM
Kathmandu
฿12,550 Return, found 7 hours ago
฿12,550
Return
found 7 hours ago
Select SriLankan Airlines flight, departing Thu, 5 Mar from Bangkok to Kathmandu, returning Thu, 12 Mar, priced at ฿12,550 found 7 hours ago
SriLankan Airlines
Wed, 8 Apr - Thu, 23 Apr
BKK
Bangkok
KTM
Kathmandu
฿12,555 Return, found 4 days ago
฿12,555
Return
found 4 days ago
Select SriLankan Airlines flight, departing Wed, 8 Apr from Bangkok to Kathmandu, returning Thu, 23 Apr, priced at ฿12,555 found 4 days ago
SriLankan Airlines
Thu, 5 Feb - Sun, 8 Feb
BKK
Bangkok
KTM
Kathmandu
฿12,786 Return, found 6 days ago
฿12,786
Return
found 6 days ago
Select SriLankan Airlines flight, departing Thu, 5 Feb from Bangkok to Kathmandu, returning Sun, 8 Feb, priced at ฿12,786 found 6 days ago
SriLankan Airlines
Wed, 11 Mar - Sun, 15 Mar
BKK
Bangkok
KTM
Kathmandu
฿12,801 Return, found 3 days ago
฿12,801
Return
found 3 days ago
Select SriLankan Airlines flight, departing Wed, 11 Mar from Bangkok to Kathmandu, returning Sun, 15 Mar, priced at ฿12,801 found 3 days ago
SriLankan Airlines
Thu, 8 Jan - Mon, 12 Jan
BKK
Bangkok
KTM
Kathmandu
฿12,807 Return, found 4 days ago
฿12,807
Return
found 4 days ago
Select SriLankan Airlines flight, departing Thu, 8 Jan from Bangkok to Kathmandu, returning Mon, 12 Jan, priced at ฿12,807 found 4 days ago
SriLankan Airlines
Sat, 10 Jan - Sun, 18 Jan
BKK
Bangkok
KTM
Kathmandu
฿13,340 Return, found 1 day ago
฿13,340
Return
found 1 day ago
Select SriLankan Airlines flight, departing Sat, 10 Jan from Bangkok to Kathmandu, returning Sun, 18 Jan, priced at ฿13,340 found 1 day ago
SriLankan Airlines
Wed, 1 Oct - Sun, 5 Oct
BKK
Bangkok
KTM
Kathmandu
฿13,345 Return, found 4 days ago
฿13,345
Return
found 4 days ago
Select SriLankan Airlines flight, departing Wed, 1 Oct from Bangkok to Kathmandu, returning Sun, 5 Oct, priced at ฿13,345 found 4 days ago
SriLankan Airlines
Thu, 19 Mar - Wed, 25 Mar
BKK
Bangkok
KTM
Kathmandu
฿13,445 Return, found 7 hours ago
฿13,445
Return
found 7 hours ago
Select SriLankan Airlines flight, departing Thu, 19 Mar from Bangkok to Kathmandu, returning Wed, 25 Mar, priced at ฿13,445 found 7 hours ago
SriLankan Airlines
Tue, 28 Apr - Thu, 7 May
BKK
Bangkok
KTM
Kathmandu
฿13,612 Return, found 4 days ago
฿13,612
Return
found 4 days ago
Select SriLankan Airlines flight, departing Tue, 28 Apr from Bangkok to Kathmandu, returning Thu, 7 May, priced at ฿13,612 found 4 days ago
SriLankan Airlines
Sat, 27 Dec - Thu, 1 Jan
BKK
Bangkok
KTM
Kathmandu
฿14,145 Return, just found
฿14,145
Return
just found
Select SriLankan Airlines flight, departing Sat, 27 Dec from Bangkok to Kathmandu, returning Thu, 1 Jan, priced at ฿14,145 just found
Flight from Bangkok to Kathmandu route information
Origin airport
Suvarnabhumi Intl.
Destination airport
Tribhuvan Intl.
Airlines serving
Air China, Air India, Biman Bangladesh, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, IndiGo, Malaysia Airlines, Sichuan Airlines, Singapore Airlines, SriLankan Airlines, Thai Airways International
Popular airline
Air India
Distance
2216 km
Average flight time
2 hours 11 mins

Frequently asked questions

How much is a SriLankan Airlines flight from Suvarnabhumi Intl. Airport (BKK) to Tribhuvan Intl. Airport (KTM)?
You can find cheap round-trip SriLankan Airlines flights from ฿12,535 from BKK to KTM by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from ฿6,660 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BKK to KTM with SriLankan Airlines?
SriLankan Airlines flights to Kathmandu tend to be cheaper in the off-peak months of July and August. Whether you're after a round-trip or one-way ticket, you could score a better deal then.
Does SriLankan Airlines fly nonstop from Suvarnabhumi Intl. Airport (BKK) to Tribhuvan Intl. Airport (KTM)?
Enter your dates, hit search and select the "Nonstop" filter on Expedia to browse any direct flights from BKK to KTM with SriLankan Airlines or another airline.
What airports does SriLankan Airlines fly into in Kathmandu?
Tribhuvan Intl. Airport (KTM) is the main Kathmandu hub for SriLankan Airlines flights from Suvarnabhumi Intl. Airport (BKK).
What kind of luggage can I take on a SriLankan Airlines flight from Suvarnabhumi Intl. Airport (BKK) to Tribhuvan Intl. Airport (KTM)?
For checked luggage, passengers can take 1 checked-in bag weighing up to 30 kgs with dimensions not exceeding 157 centimetres. You can also travel with 1 cabin bag in the cabin when flying standard economy from BKK to KTM with SriLankan Airlines. This carry-on should weigh less than 7 kgs and be no bigger than 114 centimetres. Going above these limits can mean additional charges, so check SriLankan Airlines's baggage allowance guidelines before you pack.
Can I change or cancel my SriLankan Airlines flight from Suvarnabhumi Intl. Airport (BKK) to Tribhuvan Intl. Airport (KTM)?
You can usually change or cancel your flight, although additional fees may apply if you booked more than 24 hours ago. Want to keep your options open? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge extra if you have to adjust your plans. To update your itinerary, visit "Trips," select your flight and click on "Manage Booking" for more details.
*Available to Expedia members.