The earlier 19 are Bangkok, Doha, Dubai, Guangzhou, Frankfurt, Hong Kong, Istanbul, Kuala Lumpur, London, Moscow, Paris, Phnom Penh, San Francisco, Seoul, Singapore, Sydney, Taipei, Tokyo, and Vientiane, the Ministry of Transport said Tuesday.
Before the pandemic, Vietnam has operated flights to 28 destinations.
Eight have yet to agree to resumption of flights: Brunei, Finland, India, Indonesia, Italy, Macau, Myanmar, and Switzerland.
According to the ministry, there are currently 370 international flights to and from Vietnam a week, or 10 percent of the pre-pandemic figure.
Vietnam ended all restrictions on international flights on February 15 after gradually lifting them since January 1 after almost two years of suspension.