The sector is held by K-Mile Air.
Airport pair · hand carry reference
SZX Shenzhen to CNX Chiang Mai
Shenzhen Bao'an, China, to Chiang Mai International, Thailand. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- 3 times a week
- Great circle
- 1,602 km
- Block, estimated
- 2h 33m
- Door to door
- 9h 18m
What SZX to CNX looks like
The SZX to CNX sector, the carriers on it and the flying time, before anything is promised to anybody.
Shenzhen SZX to Chiang Mai CNX is a medium haul sector of 1,602 km by great circle, flown nonstop 3 times a week.
At the cruise speed this site models for 1,602 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 2h 33m.
Shenzhen SZX is a major hub in the network held here, 157 scheduled destinations and 574.7 departures a day. Chiang Mai CNX has 29 destinations and 87.6 departures a day.
Shenzhen carries about 6.6 times the departures of Chiang Mai, so a courier who has to be rebooked has far more to work with at one end of this pair than at the other.
Chiang Mai is one hour behind of Shenzhen 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 SZX to CNX from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| SZX to CNX | 0.43 | 3 | K-Mile Air |
| CNX to SZX | 0 | 0 | none held |
One carrier holds the sector, K-Mile Air, so a cancellation has no second nonstop behind it and the connections below stop being theoretical.
The return leg CNX to SZX carries no scheduled nonstop at all, so a courier coming back does it with a connection.
Between them the two directions put about 3 departures a week on SZX to CNX, 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 2h 33m block time on SZX to CNX. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to SZX | 90 min | 1h 30m |
| At SZX before departure | 180 min | 4h 30m |
| SZX to CNX in the air, estimated | 153 min | 7h 03m |
| Formalities at CNX | 90 min | 8h 33m |
| Delivery run in Chiang Mai | 45 min | 9h 18m |
| Door to door | 558 min | 9h 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 SZX to CNX is 9h 18m.
A courier who leaves Shenzhen at 09:00 local is on the ground in Chiang Mai at about 10:33 local and at the door by 12:48 the same day.
Working backwards from a six in the evening handover in Chiang Mai, the last useful departure from Shenzhen is around 14:12 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. 15 of them join SZX to CNX.
| Connecting at | SZX to hub, flights a day | Hub to CNX, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Hanoi HAN | 6.57 | 0.86 | 1,605 | 4h 12m |
| Kunming KMG | 13.29 | 2.71 | 1,954 | 4h 44m |
| Bangkok DMK | 0.86 | 28.29 | 2,265 | 5h 00m |
| Bangkok BKK | 6.29 | 24.29 | 2,297 | 5h 18m |
| Chongqing CKG | 21.14 | 0.57 | 2,507 | 5h 27m |
| Taipei TPE | 5.57 | 3.14 | 3,200 | 6h 20m |
15 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Hanoi HAN, where the weaker of the two legs still runs 6 times a week.
Through HAN the routing covers 1,605 km against the 1,602 km nonstop track and takes about 4h 12m 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 39m 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 4h 44m and Bangkok DMK at 5h 00m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves Shenzhen, Hong Kong HKG is 38 km away by great circle and carries 144 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Plan Shenzhen to Chiang Mai 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 SZX to CNX 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 SZX airport entry
- The CNX airport entry
- Hand carry into China
- Hand carry into Thailand
- The written lane, Dubai to Shenzhen
- The written lane, Munich to Shenzhen
- The route calculator
More pairs through SZX and CNX: Bangkok to Chiang Mai, Taipei to Chiang Mai, Chiang Mai to Hanoi, Chiang Mai to Osaka, Busan to Chiang Mai, Shenzhen to Singapore, Beijing to Shenzhen, Seoul to Shenzhen.