The sector is held by SriLankan Airlines and Thai Airways International.
Airport pair · hand carry reference
BKK Bangkok to CMB Colombo
Suvarnabhumi Airport, Thailand, to Bandaranaike International, Sri Lanka. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- 3.4 times a day
- Great circle
- 2,392 km
- Block, estimated
- 3h 33m
- Door to door
- 10h 18m
What BKK to CMB looks like
The BKK to CMB sector, the carriers on it and the flying time, before anything is promised to anybody.
Bangkok BKK to Colombo CMB is a medium haul sector of 2,392 km by great circle, flown nonstop 3.4 times a day.
At the cruise speed this site models for 2,392 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 3h 33m.
Bangkok BKK is a large airport in the network held here, 138 scheduled destinations and 531.9 departures a day. Colombo CMB has 45 destinations and 93.2 departures a day.
Bangkok carries about 5.7 times the departures of Colombo, so a courier who has to be rebooked has far more to work with at one end of this pair than at the other.
Colombo is 1.5 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 CMB from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| BKK to CMB | 3.43 | 24 | SriLankan Airlines, Thai Airways International |
| CMB to BKK | 3.43 | 24 | SriLankan Airlines, Thai Airways International |
Two carriers hold the sector, SriLankan Airlines and Thai Airways International, which gives a missed departure somewhere to go without leaving the nonstop.
At 3.4 times a day there is usually another departure within a few hours, which is what makes a same day booking on this pair realistic.
Between them the two directions put about 48 departures a week on BKK to CMB, 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 33m block time on BKK to CMB. 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 CMB in the air, estimated | 213 min | 8h 03m |
| Formalities at CMB | 90 min | 9h 33m |
| Delivery run in Colombo | 45 min | 10h 18m |
| Door to door | 618 min | 10h 18m |
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 CMB is 10h 18m.
A courier who leaves Bangkok at 09:00 local is on the ground in Colombo at about 11:03 local and at the door by 13:18 the same day.
Working backwards from a six in the evening handover in Colombo, the last useful departure from Bangkok is around 13:42 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. 35 of them join BKK to CMB.
| Connecting at | BKK to hub, flights a day | Hub to CMB, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Chennai MAA | 2.14 | 7.57 | 2,874 | 5h 48m |
| Bangalore BLR | 3 | 2.71 | 3,202 | 6h 14m |
| Hyderabad HYD | 1.86 | 1.86 | 3,552 | 6h 33m |
| Dhaka DAC | 5.43 | 2 | 3,734 | 6h 46m |
| Ho Chi Minh City SGN | 13.86 | 0.86 | 3,682 | 6h 50m |
| Kuala Lumpur KUL | 9.14 | 6 | 3,688 | 6h 58m |
With 3.4 times a day on the nonstop, a connection here is a disruption plan rather than a routing, and it is listed because a closed runway or a cancellation wave is exactly when nobody has time to work it out.
35 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Chennai MAA, where the weaker of the two legs still runs about twice a day.
Through MAA the routing covers 2,874 km against the 2,392 km nonstop track and takes about 5h 48m in the air and on the ground at the hub, allowing 60 minutes to connect at an airport of that size.
That is only 2h 15m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Bangalore BLR at 6h 14m and Hyderabad HYD at 6h 33m 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 Colombo 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 CMB 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 CMB airport entry
- Hand carry into Thailand
- Hand carry into Sri Lanka
- 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 CMB: 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.