The sector is held by Nepal Airlines and Thai Airways International.
Airport pair · hand carry reference
BKK Bangkok to KTM Kathmandu
Suvarnabhumi Airport, Thailand, to Tribhuvan International, Nepal. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- About twice a day
- Great circle
- 2,230 km
- Block, estimated
- 3h 21m
- Door to door
- 10h 06m
What BKK to KTM looks like
The BKK to KTM sector, the carriers on it and the flying time, before anything is promised to anybody.
Bangkok BKK to Kathmandu KTM is a medium haul sector of 2,230 km by great circle, flown nonstop about twice a day.
At the cruise speed this site models for 2,230 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 3h 21m.
Bangkok BKK is a large airport in the network held here, 138 scheduled destinations and 531.9 departures a day. Kathmandu KTM has 35 destinations and 100.6 departures a day.
Bangkok carries about 5.3 times the departures of Kathmandu, so a courier who has to be rebooked has far more to work with at one end of this pair than at the other.
Kathmandu is 1.2 hours behind of Bangkok all year.
The pair sits inside Asia Pacific, a corridor where the site already publishes 16 written lanes that go into customs and ground detail this page does not.
Who flies the sector, and how often
Average daily frequencies on BKK to KTM from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| BKK to KTM | 2.57 | 18 | Nepal Airlines, Thai Airways International |
| KTM to BKK | 2.57 | 18 | Nepal Airlines, Thai Airways International |
Two carriers hold the sector, Nepal Airlines and Thai Airways International, which gives a missed departure somewhere to go without leaving the nonstop.
Between them the two directions put about 36 departures a week on BKK to KTM, which is the number that decides whether a seat can be found today or on Thursday.
The clock from collection to signature
The same ground timings the route calculator starts from, applied to the 3h 21m block time on BKK to KTM. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to BKK | 90 min | 1h 30m |
| At BKK before departure | 180 min | 4h 30m |
| BKK to KTM in the air, estimated | 201 min | 7h 51m |
| Formalities at KTM | 90 min | 9h 21m |
| Delivery run in Kathmandu | 45 min | 10h 06m |
| Door to door | 606 min | 10h 06m |
On the desk standard ground timings, ninety minutes to collect and reach the airport, three hours at the airport before departure, ninety minutes of arrival formalities and a forty five minute delivery run, the door to door figure for BKK to KTM is 10h 06m.
A courier who leaves Bangkok at 09:00 local is on the ground in Kathmandu at about 11:06 local and at the door by 13:21 the same day.
Working backwards from a six in the evening handover in Kathmandu, the last useful departure from Bangkok is around 13:39 local.
When the nonstop does not work
Every airport that joins the two ends, ranked by when they land, among the ones whose weaker leg is dependable enough to plan on. Connection time is allowed for the size of the hub. 19 of them join BKK to KTM.
| Connecting at | BKK to hub, flights a day | Hub to KTM, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Dhaka DAC | 5.43 | 1.43 | 2,230 | 4h 58m |
| Kunming KMG | 6.86 | 0.57 | 3,062 | 6h 10m |
| Delhi DEL | 10.14 | 11.71 | 3,764 | 7h 03m |
| Chengdu TFU | 7 | 1.86 | 3,764 | 7h 04m |
| Kuala Lumpur KUL | 9.14 | 3.43 | 4,494 | 7h 46m |
| Mumbai BOM | 7.57 | 1.29 | 4,623 | 7h 56m |
One nonstop a day means one chance a day, so the connections below are what a consignment that arrives at BKK in the afternoon actually flies on.
19 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Dhaka DAC, where the weaker of the two legs still runs about once a day.
Through DAC the routing covers 2,230 km against the 2,230 km nonstop track and takes about 4h 58m in the air and on the ground at the hub, allowing 60 minutes to connect at an airport of that size.
That is only 1h 37m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Kunming KMG at 6h 10m and Delhi DEL at 7h 03m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves Bangkok, Bangkok DMK is 30 km away by great circle and carries 61 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Plan Bangkok to Kathmandu yourself
The same tool the dispatchers use, open to anybody and free. It is loaded with this pair already. Change either end, add a stopover or a preferred airline, and it works out the connection, the transit and the door to door clock, with the real departures underneath. Put it on your own site if it is useful to you.
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Restrictions
Where this came from, and where to look next
- Carriers and frequencies: AeroDataBox scheduled route statistics, retrieved 2026-09-07. Average daily flights, not a timetable.
- Distances: great circle from published coordinates. They read short against a flown track, which is why the block time above applies a factor to them.
- Block and connection times: the same model the route calculator lower down this page runs, at the same rounding.
- Restrictions: the airport notes file, checked 2026-09-07.
- Industrial sites: public company information. Nothing here says or implies that any company named is a customer of any courier operator.
Who publishes this. OnBoard Courier is a placement desk in Dubai. An assignment is carried out by a vetted partner operator, with the desk as the single point of contact from the quote to the signature. This page exists because our own dispatchers need the answer for BKK to KTM in the twenty minutes before a promise is made, and a reference only one operator can read is not a reference. Free to read, quote and cite. Found an error? Tell us and we will correct it.
If you need something moved rather than looked up, the desk prices a hand carry in fifteen minutes.
- The BKK airport entry
- The KTM airport entry
- Hand carry into Thailand
- Hand carry into Nepal
- The written lane, Abu Dhabi to Bangkok
- The written lane, Bangkok to Frankfurt
- The written lane, Bangkok to Tokyo
- The route calculator
More pairs through BKK and KTM: Bangkok to Singapore, Bangkok to Seoul, Taipei to Bangkok, London to Bangkok, Amsterdam to Bangkok, Paris to Bangkok, Bangkok to Hong Kong, Bangkok to Shanghai.