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Kathmandu to Bangkok KTM → BKK

Tribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)

The cheapest return found recently is $440 with SriLankan Airlines, 1 Nov – 20 Dec, found 2 days ago. The cheapest one-way found recently is $216 with Air India, 28 Jan 2027, found today.

Return

The cheapest return fare on each of 6 departure dates is usually $382 to $501.

Cheapest return found recently

$440

1 Nov – 20 Dec · SriLankan Airlines

Tribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)

Leaves 12:50 p.m. · Return leaves 8:10 a.m. · 51 h 25 min of travel, both ways together

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

Cheapest nonstop return

$332

4 Jan 2027 – 8 Jan 2027 · THAI Airways

Tribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)

Leaves 12:25 a.m. · Return leaves 9:15 p.m. · 6 h 55 min of travel, both ways together

out nonstop, back nonstop

found 6 days ago

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $440 1 Nov – 20 Decfound 2 days agoSee prices for these dates

Cheapest we hold, of any age $332 4 Jan 2027 – 8 Jan 2027found 6 days agoSee prices for these dates

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $328 to $364.

At $440, the cheapest return found recently is above that range.

25 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good return price?

Compared with the cheapest return fare on each of 6 departure dates from 28 Oct to 13 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 49-night return fares leaving within 3 days of 1 Nov to compare.

Every date we hold

6 fares on 6 departure dates

28 Oct – 5 Nov: $504, found 5 days ago1 Nov – 20 Dec: $440, found 2 days ago7 Nov – 4 Jan 2027: $493, found 4 days ago11 Nov – 16 Nov: $525, found 5 days ago4 Jan 2027 – 8 Jan 2027: $332, found 6 days ago13 Feb 2027 – 25 Feb 2027: $362, found 6 days agoOctNovJanFeb
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
28 Oct – 5 Nov$504Biman Bangladesh AirlinesTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
1 Nov – 20 Dec$440SriLankan AirlinesTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
7 Nov – 4 Jan 2027$493Air IndiaTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
11 Nov – 16 Nov$525Air IndiaTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
4 Jan 2027 – 8 Jan 2027$332THAI AirwaysTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
13 Feb 2027 – 25 Feb 2027$362THAI AirwaysTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $332.

October 2026From $5041 departure date28 Oct – 5 Nov · found 5 days agoSee prices for these dates
November 2026From $4403 departure dates1 Nov – 20 Dec · found 2 days agoSee prices for these dates
January 2027From $332Cheapest seen1 departure date4 Jan 2027 – 8 Jan 2027 · found 6 days agoSee prices for these dates
February 2027From $3621 departure date13 Feb 2027 – 25 Feb 2027 · found 6 days agoSee prices for these dates

Airlines on the cheapest dates: Air India, THAI Airways, Biman Bangladesh Airlines, SriLankan Airlines.

One-way

The cheapest one-way fare on each of 8 departure dates is usually $202 to $221.

Cheapest one-way found recently

$216

28 Jan 2027 · Air India

Tribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)

Leaves 7:35 a.m. · 9 h 20 min trip

1 stop

found today

Open this tripCheck today's price

Cheapest nonstop one-way

None seen yet.

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Found recently, and the cheapest we hold

Cheapest found recently $216 28 Jan 2027found todayOpen this trip

Cheapest we hold, of any age $187 10 Jan 2027found 6 days agoOpen this trip

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $158 to $198.

At $216, the cheapest one-way found recently is above that range.

25 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good one-way price?

Compared with the cheapest one-way fare on each of 8 departure dates from 25 Dec to 20 Aug 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 28 Jan 2027 to compare.

Every date we hold

10 fares on 8 departure dates

25 Dec: $229, found 3 days ago30 Dec: $202, found 3 days ago6 Jan 2027: $200, found 4 days ago10 Jan 2027: $187, found 6 days ago28 Jan 2027: $216, found today2 Feb 2027: $220, found 2 days ago29 Mar 2027: $222, found yesterday20 Aug 2027: $210, found 2 days agoDecJanFebMarAug
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
25 Dec$229THAI AirwaysTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)stops unknownfound 3 days agoOpen this trip
30 Dec$202SriLankan AirlinesTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound 3 days agoOpen this trip
6 Jan 2027$200SriLankan AirlinesTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound 4 days agoOpen this trip
10 Jan 2027$187SriLankan AirlinesTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound 6 days agoOpen this trip
28 Jan 2027$216Air IndiaTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound todayOpen this trip
2 Feb 2027$220Air IndiaTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound 2 days agoOpen this trip
29 Mar 2027$222Air IndiaTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound yesterdayOpen this trip
20 Aug 2027$210Air IndiaTribhuvan International Airport (KTM) → Suvarnabhumi Airport (BKK)1 stopfound 2 days agoOpen this trip

Which month looks cheapest?

January 2027 is the cheapest month — from $187.

December 2026From $2022 departure dates30 Dec · found 3 days agoOpen this trip
January 2027From $187Cheapest seen3 departure dates10 Jan 2027 · found 6 days agoOpen this trip
February 2027From $2201 departure date2 Feb 2027 · found 2 days agoOpen this trip
March 2027From $2221 departure date29 Mar 2027 · found yesterdayOpen this trip
August 2027From $2101 departure date20 Aug 2027 · found 2 days agoOpen this trip

Airlines on the cheapest dates: Air India, SriLankan Airlines, THAI Airways.

Premium cabin fares from Kathmandu to Bangkok

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

Today's prices for 1 Nov – 20 Dec in another cabin: Premium economy · Business · First

Today's prices for 28 Jan 2027 in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Kathmandu to Bangkok?

Return

Fares 180 or more days before departure were typically 32% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$510$380+47%12
7–13 days$504$380+45%16
14–29 days$408$376+18%16
30–59 days$387$382+12%20
60–89 days$362$332+4%25
90–179 days$362$328+4%25
180+ days$347$345Cheapest seen15

One-way

Fares 90 to 179 days before departure were typically 15% lower than 60 to 89 days before departure.

From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
60–89 days$224$187+17%25
90–179 days$191$182Cheapest seen25
180+ days$192$183+1%22

Could a nearby airport be cheaper?

A different airport at either end can change the fare — sometimes a lot.

One-way

Pokhara → Bangkok

142 km from Kathmandu

$410

$194 more than flying from Kathmandu

29 Mar 2027 · PKR → BKK · 2 stops

found yesterday

Check today's price

Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.

Live price for these dates

The cheapest return found recently is for 1 Nov – 20 Dec. A live search on this page shows what those dates cost now, for one adult in economy.

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work