Yesterday, when I check the Changi Airport Website. One of the
flight was TO641 from Phnom Penh & AIB101 from Toulouse, seldom
to be seen in Singapore, they are cargo planes.
There is also TH325 & TH326 from Kuala Lumpur, RH flights from
Jakarta (eg. RH820) and even Y8 flights from Nanning (Y8 7973 &
Y8 7974)
If you see the Teletext for NW5 & CO5875 for arrivals or NW6
& CO5876 for departures, it shows blank destination, actually,
it arrives or departs at Portland.
TO: President Airlines, Cambodia
AIB: Airbus Industries, France
TH: Transmile Air Services, Malaysia
RH: Republic Airlines, Indonesia
Y8: Yangtze River Express, China