bro, if luggage is not too troublesome, call AirAsia.
based on saturday pricing and timings cos it's too soon. very
likely there are seats on friday.
Hanoi to Bangkok
12:50 Hanoi
14:30 Bangkok
Fare: USD 154.00 (approx. SGD 249.30 or THB 6,000)
Bangkok to Singapore
16:45 Bangkok
20:05 Singapore
Fare: THB 4,600 (approx. USD 118.40 or SGD 191.70)
Total: USD 272.40 or SGD 440.90
Pnhom Penh to Bangkok
08:40 Pnhom Penh
09:50 Bangkok
Fare: USD 149.00 (approx. SGD 241.20 or THB 5,790)
Bangkok to Singapore
11:45 Bangkok
15:00 Singapore
Fare: THB 5,400 (approx. USD 139 or SGD 225)
Total: USD 288.00 or SGD 466.16
** Singaporeans don't need to apply for visa to enter Bangkok
(30-day for tourism purposes)
** You must enter Thailand and not be in transit. Once you clear
immigration, check-in again
** AirAsia call centre for Thailand: +66 0 2515 9999
** You can head down to the ticket office at the airport to buy a
ticket as well.