Tour prices have remained unchanged as travel firms have been booking services more than one month in advance.
The number of customers this summer is expected to climb 20-30 percent compared to the same period last year, said Doan Thi Thanh Tra, marketing and communications director at Saigontourist.
While group tours account for 35 percent of bookings, tours for individuals make up the rest, Tra said.
Many travel firms offer package tours as well as services such as tickets for tourist attraction sites, Ha Long Bay cruises, restaurants and tour guides.
A more diverse array of services, from which customers can pick and choose, has helped increase the number of bookings, Tra said.
More and more tourists are buying separate services, she added.
Tran Thi Bao Thu, marketing and communications director at Fiditour, said the company was offering more than 300 inbound and outbound tours this summer.
The number of bookings has risen by 15 percent compared to the same period last year, Thu said.
To keep prices stable, the company has been working with its partners and service providers since the fourth quarter last year, she said.
Vietravel plans to spend a total of 11.5 billion VND (508,000 USD) for its summer holiday promotion programme.
The company hopes to attract 220,000 customers in the three month period, a year-on-year increase of 12 percent.
Ben Thanh Tourist hopes to double the number of bookings in three months compared to last year’s figure.
Most of the company’s tours in June to Asian countries and territories such as Thailand, Hong Kong, the Republic of Korea, Malaysia and Singapore are fully booked.
Beach tours are popular with nearly every demographic segment, especially families and younger people.
Leisure tours to beaches at Ha Long, Sam Son, Cua Lo, Ly Son, Da Nang and Nha Trang, Mui Ne, Con Dao and Phu Quoc islands at prices of 2.5-4.5 million VND (110-200 USD) have sold well, according to travel firms.
Tran The Dung, deputy director of Young Generation Co Ltd., said most domestic tours to beaches and islands this summer were fully booked.
Beach tours to Phan Thiet city, Ninh Chu beach in Ninh Thuan province, Binh Hung and Binh Ba islands in Khanh Hoa province, and Ca Lao Xanh island in Quy Nhon city have attracted a large number of customers this summer, Dung said.
Promotions by airlines have helped keep prices stable, he said.
The company predicts a growth rate of 30 percent this summer holiday.
A booking official at Ocean Dunes Resort in Phan Thiet city said that rooms were fully booked for June, with most bookings made more than a month in advance by travel firms, companies and schools in HCM City.
During the peak summer season starting in early June to mid-August, Phan Thiet city is crowded with tourists from HCM City and neighbouring provinces, she said.
To lure more tourists, many travel firms and tour operators are offering new destinations such as Ky Co Beach, Hon Kho Island and Eo Gio (a natural strait) in the central coastal province of Binh Dinh.