Inquiry Submission By Kimba80

Im trying to book a flight one way from Siem Reap to Ho Chi Minh in January but the prices advertised double or triple when i try to complete the booking from the inital advertised price. Can anyone advise if its better to wait until nearer the time or whether the flight prices are likely to just keep going up? They just seem a lot more expensive than all the other internal flights I’ve booked in Vietnam and Cambodia. Thank you