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Kathmandu, Nepal — cheap flights destination
One-way and roundtrip flights from Bangkok23°Warm

Flights to Kathmandu in September 2026

🏙️City🥾Hiking🏔️Mountain
DepartureTue, Sep 15± 15 days
One way from ฿7,067 · Roundtrip from ฿14,675.
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Top deals
Sep 10฿7,067Sep 11 → Oct 3฿14,675Sep 11฿7,118Sep 12฿7,118Sep 22 → Oct 14฿14,991Sep 9฿7,312Sep 10 → Sep 27฿15,131Sep 10 → Sep 18฿15,135Sep 10 → Sep 26฿15,135Sep 10 → Sep 23฿15,135
Flights and prices

How much are flights from Bangkok to Kathmandu?

Planning a trip to Kathmandu? Compare dates, airlines, flight times and direct options from Bangkok. 22 one-way fares from ฿7,067 · 440 roundtrips from ฿14,675. These results are for september 2026.

One way from
฿7,067
22 outbound-only options
Roundtrip from
฿14,675
440 complete trips
Typical roundtrip
฿15,725
Half cost less, half cost more
Flight options
440
Roundtrips available
Where
Depart
Depart
15d
Trip type
RETURN
Clear
Sort by
Best Deals

Roundtrip deals

440 fares · from ฿14,675

Outbound and return flights together in one total fare.

Show only roundtrip
Sep 11 → Oct 321 nights
15:15BKK → KTM00:056h 15m · 1 stop · via New Delhi
06:30KTM → BKK16:556h 25m · 1 stop · via New Delhi
฿14,675
฿16,528-11%
Save ฿1,853
Air India
Cheapest of September 2026
Sep 22 → Oct 1421 nights
19:55BKK → KTM11:308h 5m · 1 stop · via Guangzhou
00:25KTM → BKK05:103h 30m · Direct
฿14,991
฿16,528-9%
Save ฿1,537
China SouthernThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2717 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,131
฿16,528-8%
Save ฿1,397
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 188 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
13:30KTM → BKK18:153h 30m · Direct
฿15,135
฿16,528-8%
Save ฿1,393
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2616 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
13:30KTM → BKK18:153h 30m · Direct
฿15,135
฿16,528-8%
Save ฿1,393
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2313 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,135
฿16,528-8%
Save ฿1,393
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 3020 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,135
฿16,528-8%
Save ฿1,393
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2111 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
13:30KTM → BKK18:153h 30m · Direct
฿15,147
฿16,528-8%
Save ฿1,381
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 199 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
13:30KTM → BKK18:153h 30m · Direct
฿15,147
฿16,528-8%
Save ฿1,381
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2010 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,152
฿16,528-8%
Save ฿1,376
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2212 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,152
฿16,528-8%
Save ฿1,376
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2414 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,153
฿16,528-8%
Save ฿1,375
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Oct 121 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,167
฿16,528-8%
Save ฿1,361
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 177 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
13:30KTM → BKK18:153h 30m · Direct
฿15,167
฿16,528-8%
Save ฿1,361
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 10 → Sep 2919 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,167
฿16,528-8%
Save ฿1,361
Air IndiaThai Airways
Lowest 10% of September 2026
Sep 12 → Oct 421 nights
19:55BKK → KTM11:308h 5m · 1 stop · via Guangzhou
00:25KTM → BKK05:103h 30m · Direct
฿15,250
฿16,528-8%
Save ฿1,278
China SouthernThai Airways
Sep 15 → Oct 721 nights
19:55BKK → KTM11:308h 5m · 1 stop · via Guangzhou
13:30KTM → BKK18:153h 30m · Direct
฿15,255
฿16,528-8%
Save ฿1,273
China SouthernThai Airways
Sep 10 → Sep 155 nights
07:30BKK → KTM13:406h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,294
฿16,528-7%
Save ฿1,234
Air IndiaThai Airways
Sep 26 → Oct 1821 nights
22:25BKK → KTM06:356h 30m · 1 stop · via New Delhi
21:10KTM → BKK06:306h 20m · 1 stop · via New Delhi
฿15,346
฿16,528-7%
Save ฿1,182
Air India
Sep 9 → Sep 2717 nights
17:55BKK → KTM00:056h 15m · 1 stop · via New Delhi
00:25KTM → BKK05:103h 30m · Direct
฿15,390
฿16,528-7%
Save ฿1,138
Air IndiaThai Airways

One-way deals

22 fares · from ฿7,067

Outbound fare only — add a return separately if you need one.

Show only one way
thu · Sep 10One way
07:30BKK → KTM13:406h 15m · 1 stop

1h 10m layover New Delhi

฿7,067
฿7,921-11%
฿854 below average
Air India
Cheapest of September 2026
fri · Sep 11One way
15:15BKK → KTM00:056h 15m · 1 stop

3h 50m layover New Delhi

฿7,118
฿7,921-10%
฿803 below average
Air India
Lowest 10% of September 2026
sat · Sep 12One way
07:30BKK → KTM13:406h 15m · 1 stop

1h 10m layover New Delhi

฿7,118
฿7,921-10%
฿803 below average
Air India
Lowest 10% of September 2026
wed · Sep 9One way
17:55BKK → KTM00:056h 15m · 1 stop

1h 10m layover New Delhi

฿7,312
฿7,921-8%
฿609 below average
Air India
Lowest 10% of September 2026
sat · Sep 19One way
11:55BKK → KTM19:506h 5m · 1 stop

3h 5m layover New Delhi

฿7,711
฿7,921-3%
฿210 below average
IndiGo
thu · Sep 17One way
07:30BKK → KTM13:406h 15m · 1 stop

1h 10m layover New Delhi

฿7,978
Air India
Current fare
sat · Sep 26One way
07:30BKK → KTM13:406h 15m · 1 stop

1h 10m layover New Delhi

฿7,993
Air India
Current fare
sun · Sep 27One way
07:30BKK → KTM20:106h 5m · 1 stop

7h 50m layover New Delhi

฿8,097
Air India
Current fare
tue · Sep 22One way
11:55BKK → KTM19:506h 5m · 1 stop

3h 5m layover New Delhi

฿8,138
IndiGo
Current fare
wed · Sep 16One way
11:55BKK → KTM19:506h 5m · 1 stop

3h 5m layover New Delhi

฿8,191
IndiGo
Current fare
mon · Sep 21One way
21:15BKK → KTM23:253h 25m · Direct
฿8,251
Thai Airways
Current fare
sun · Sep 20One way
21:15BKK → KTM23:253h 25m · Direct
฿8,251
Thai Airways
Current fare
thu · Sep 24One way
10:15BKK → KTM12:253h 25m · Direct
฿8,251
Thai Airways
Current fare
mon · Sep 14One way
21:15BKK → KTM23:253h 25m · Direct
฿8,253
Thai Airways
Current fare
sun · Sep 13One way
21:15BKK → KTM23:253h 25m · Direct
฿8,253
Thai Airways
Current fare
fri · Sep 18One way
10:15BKK → KTM12:253h 25m · Direct
฿8,267
Thai Airways
Current fare
wed · Sep 23One way
10:15BKK → KTM12:253h 25m · Direct
฿8,267
Thai Airways
Current fare
tue · Sep 15One way
21:15BKK → KTM23:253h 25m · Direct
฿8,268
Thai Airways
Current fare
fri · Sep 25One way
07:30BKK → KTM13:406h 15m · 1 stop

1h 10m layover New Delhi

฿8,308
Air India
Current fare
tue · Sep 29One way
11:55BKK → KTM19:506h 5m · 1 stop

3h 5m layover New Delhi

฿9,374
IndiGo
Current fare
Load more deals

Filters

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Direct only means outbound non-stop for one ways and both flights non-stop for roundtrips.

Vibe
Weather
Budget

Plan with confidence

Find the trip that fits

Compare prices, dates, airlines and travel time. Then choose the deal that feels right.

See the difference

September 2026 at a glance

Compare price, non-stop choice and travel time with other Kathmandu options.

Typical price difference

-1%

฿15,725 here compared with ฿15,905

Non-stop options

68%

+11 points compared with other flights

Typical flight time

3h 25m

— longer than the comparison

Roundtrip options

440

Trips ready to compare

Typical prices

What do Kathmandu roundtrips usually cost?

This distribution uses roundtrip prices only; one-way prices remain in their own labeled summary.

Half of the 440 prices fall inside the shaded band. This makes it easier to see whether the lowest fare is common or unusual.

Flexible dates

Cheapest departure dates for Kathmandu

Compare nearby dates to see where the better prices are. Always check the final price before booking.

฿15,412
Sep 9
฿15,153
Sep 10
฿15,413
Sep 11
฿15,731
Sep 12
฿15,720
Sep 13
฿15,720
Sep 14
฿15,725
Sep 15
฿15,735
Sep 16
฿15,711
Sep 17
฿15,711
Sep 18
฿15,711
Sep 19
฿15,711
Sep 20
฿15,711
Sep 21
฿15,711
Sep 22
฿15,727
Sep 23
฿15,711
Sep 24
฿15,725
Sep 25
฿15,710
Sep 26
฿16,159
Sep 27
฿16,682
Sep 28
฿16,772
Sep 29
฿17,684
Sep 30
Bars show the typical roundtrip fare for each choice.Lowest: Sep 11 from ฿14,675

Flexible timing

Compare Kathmandu by travel month

Open a month to compare its dates, prices and available flights.

January 2027฿11,441February 2027฿13,008March 2027฿13,174September 2026฿14,675October 2026฿16,502November 2026฿13,617December 2026฿11,375

Airline comparison

Which airlines show the lowest Kathmandu fares?

Some trips combine airlines, so check both flights before you book.

Which airlines show the lowest Kathmandu fares?
ComparisonLowestTypical rangeResultsNon-stop
1Air India฿14,675฿15,397–฿16,276970%
2China Southern฿14,991—3—
3Thai Airways฿14,991฿15,711–฿15,75242070%
4IndiGo฿15,787฿16,772–฿17,695390%
5RA฿16,261฿16,640–฿16,7132075%
6Thai AirAsia X฿17,263—6—
7Thai AirAsia฿21,041—1—

Weather through the year

Typical temperatures in Kathmandu

Usual monthly temperatures can help you choose when to go. They are not a live forecast.

10°Jan
12°Feb
16°Mar
20°Apr
23°May
24°Jun
24°Jul
24°Aug
23°Sep
20°Oct
15°Nov
11°Dec
Typical monthly temperature range: 10°C to 24°C. Verify a live forecast near departure.

Useful trip facts

What to know about Kathmandu

Country
Nepal
Arrival code
KTM
Local-cost group
1 / 5
A broad comparison, separate from airfare
Typical annual temperature
18°C
Usual temperature, not a forecast
Trip styles
City, Hiking, Mountain
Bangkok departure airports
BKK
Airports represented in the current fare results
Arrival airports
KTM
Airports represented in the current fare results
Typical outbound from Bangkok
3h 25m
Typical stay
12 nights

Why go

Why travelers consider Kathmandu

Roof of the World. Ancient temples, chaotic streets, and the gateway to the Himalayas.

Explore related searches

📍
All Kathmandu deals
📅
Cheapest months to fly to Kathmandu

Common questions about Kathmandu

What is the lowest available one-way fare for Kathmandu?
The lowest available one-way fare is ฿7,067. It is compared only with other one-way fares.
What is the lowest available roundtrip fare for Kathmandu?
The lowest available roundtrip fare is ฿14,675. Check the dates, baggage and final total before booking.
What is a typical fare for Kathmandu?
A typical fare is ฿15,725. Many available options sit between ฿15,711 and ฿15,839.
How many choices are available for Kathmandu?
Choose from 440 roundtrip flights across 1 destination in 1 country.
Are direct flights available for Kathmandu?
300 roundtrip flights are non-stop both ways. That is 68% of the current choices.
Which month has the lowest fares for Kathmandu?
Sep 2026 has the lowest available roundtrip fare, from ฿14,675.
What is the cheapest flight from Bangkok to Kathmandu?
The lowest currently observed flight from Bangkok to Kathmandu is ฿14,675. Confirm the final itinerary total and availability before booking.
When is the best time to fly from Bangkok to Kathmandu?
Based on current prices, September 2026 offers some of the best deals from Bangkok to Kathmandu. Check the month-by-month breakdown on this page for the cheapest times to fly.