According to data from Mustgo, an online booking platform with over 2,000 hotel partners nationwide, destinations primarily accessible by air have been shunned by tourists.
Places like Sa Pa and Phan Thiet report nearly full occupancy.
In Da Nang, four- and five-star beachfront hotels are only 30-40% full.
Tran Quoc Hung, head of Mustgo's product development department, said some hotels have either removed holiday surcharges.
He said Da Nang could reach full occupancy on Aug. 31, but only around 60% on Sept. 1 and 2.
Hoi An has reported occupancy of 40% on Sept. 2. While some beachfront resorts have scrapped holiday surcharges, hotels in town, which have limited rooms, have not.
In Cam Ranh, around 40 kilometers from Nha Trang, resorts have sold out their cheaper rooms for Aug. 31, but many rooms remain vacant for the remainder of the holiday.
"The number of bookings in Nha Trang and Da Nang seems to have fallen short of expectations, leading many establishments to remove surcharges," Hung said.
Phu Quoc Island in the south has reported reasonable numbers thanks to foreign tourists.
The five-star segment recorded less than 40% occupancy, but four-star hotels reported 80% rates for Aug. 31 and Sept. 1 and 50% for Sept. 2.
Destinations easily accessible by road and with low transportation costs and favorable weather have reported high occupancy rates.
In Sa Pa, three- and four-star hotels have reported 80-90% occupancy on Aug. 31 and Sept. 1.
A Mustgo spokesperson said most hotels in Sa Pa are fully booked on Aug. 31, and only high-priced rooms are available on Aug. 30 and Sept. 2 and 3.
Phan Thiet, a two-hour drive from HCMC, reported 70-80% occupancy at three- and four-star hotels and 60-70% at five-star properties.
In Da Lat, known for its year-round cool climate, the rates are 40-60% for the three- and four-star segments and 30-40% for the five-star segment.
Airfares to domestic tourist destinations between Aug. 31 and Sept. 3 have increased by 10-20% though lower than during the peak summer season.