The sector is held by Singapore Airlines and SriLankan Airlines.
Airport pair · hand carry reference
SIN Singapore to CMB Colombo
Changi Airport, Singapore, to Bandaranaike International, Sri Lanka. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- 4.6 times a day
- Great circle
- 2,750 km
- Block, estimated
- 4h 01m
- Door to door
- 10h 46m
What SIN to CMB looks like
The SIN to CMB sector, the carriers on it and the flying time, before anything is promised to anybody.
Singapore SIN to Colombo CMB is a medium haul sector of 2,750 km by great circle, flown nonstop 4.6 times a day.
At the cruise speed this site models for 2,750 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 4h 01m.
Singapore SIN is a major hub in the network held here, 159 scheduled destinations and 536.3 departures a day. Colombo CMB has 45 destinations and 93.2 departures a day.
Singapore carries about 5.8 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 2.5 hours behind of Singapore 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 SIN to CMB from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| SIN to CMB | 4.57 | 32 | Singapore Airlines, SriLankan Airlines |
| CMB to SIN | 4.57 | 32 | Singapore Airlines, SriLankan Airlines |
Two carriers hold the sector, Singapore Airlines and SriLankan Airlines, which gives a missed departure somewhere to go without leaving the nonstop.
At 4.6 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 64 departures a week on SIN 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 4h 01m block time on SIN 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 SIN | 90 min | 1h 30m |
| At SIN before departure | 180 min | 4h 30m |
| SIN to CMB in the air, estimated | 241 min | 8h 31m |
| Formalities at CMB | 90 min | 10h 01m |
| Delivery run in Colombo | 45 min | 10h 46m |
| Door to door | 646 min | 10h 46m |
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 SIN to CMB is 10h 46m.
A courier who leaves Singapore at 09:00 local is on the ground in Colombo at about 10:31 local and at the door by 12:46 the same day.
Working backwards from a six in the evening handover in Colombo, the last useful departure from Singapore is around 14:14 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 SIN to CMB.
| Connecting at | SIN to hub, flights a day | Hub to CMB, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Kuala Lumpur KUL | 43 | 6 | 2,765 | 5h 50m |
| Thiruvananthapuram TRV | 1 | 0.57 | 3,457 | 6h 16m |
| Tiruchirappalli TRZ | 4.86 | 1.29 | 3,401 | 6h 26m |
| Kochi COK | 2.29 | 1.14 | 3,708 | 6h 36m |
| Chennai MAA | 6 | 7.57 | 3,572 | 6h 41m |
| Bangalore BLR | 4.57 | 2.71 | 3,889 | 6h 53m |
With 4.6 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 Kuala Lumpur KUL, where the weaker of the two legs still runs 6 times a day.
Through KUL the routing covers 2,765 km against the 2,750 km nonstop track and takes about 5h 50m in the air and on the ground at the hub, allowing 75 minutes to connect at an airport of that size.
That is only 1h 49m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Thiruvananthapuram TRV at 6h 16m and Tiruchirappalli TRZ at 6h 26m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
Restricted hours at either end
Widely documented operating restrictions, checked 2026-09-07. Exemptions and seasonal variations exist, so confirm with the carrier before relying on any of them.
Singapore SIN, night operations: Operates around the clock.
Industry within reach of the two ends
Public manufacturing and research sites whose logistics run through SIN or CMB. Listed as industrial geography, not as customers of anyone.
- ASM Pacific and Besi, Duiven and SingaporeSemiconductor assembly equipment. Back end equipment feeding Asian assembly plants. Logistics through Singapore SIN.
Plan Singapore 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 SIN 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 SIN airport entry
- The CMB airport entry
- Hand carry into Singapore
- Hand carry into Sri Lanka
- The written lane, Abu Dhabi to Singapore
- The written lane, Amsterdam to Singapore
- The written lane, Bali to Singapore
- The route calculator
More pairs through SIN and CMB: Colombo to Doha, Kuala Lumpur to Colombo, Frankfurt to Colombo, Colombo to Delhi, Colombo to Kuwait City, Colombo to Chennai, Bangkok to Colombo, Mumbai to Colombo.