With the new 30-day E-visa, you can arrive in eight international airports:

From February 1, 2017, Vietnam has introduced e-visa (single entry) for a stay up to 30 days. 

With this e-visa you can arrive at these international airport in Vietnam: Noi Bai (Hanoi), Tan Son Nhat (Ho Chi Minh City), Da Nang, Can Tho, Phu Bai, Phu Quoc, Cat Bi, Cam Ranh, Vinh. 

It is also possible travel to Vietnam only with the approval letter, you will receive a visa at the airport. With the approval letter you can arrive at only 3 international airports: Noi Bai (Hanoi), Tan Son Nhat (Ho Chi Minh City), Da Nang.

INTERNATIONAL AIRPORTS in Vietnam:

• Can Tho
• Chu Lai
• Lien Khuong (Da Lat)
• Đà Nẵng International Airpot
• Cat Bi (Haiphong)
• Nội Bài International Airport (Hanoi)
• Tân Sơn Nhất (Ho Chi Minh City)
• Phu Bai (Huế)
• Cam Ranh (Nha Trang)
• Phu Quoc
• Vinh

DOMESTIC AIRPORTS in Vietnam:

• Buon Ma Thuot (Dak Lak)
• Cà Mau
• Co Ong (Côn Đảo)
• Dien Bien Phu
• Đồng Hới
• Pleiku
• Phu Cat (Qui Nhơn)
• Rach Gia
• Nà Sản (Sơn La) — closed, planning the reconstruction
• Dong Tac (Tuy Hòa)
• Vung Tau
• Thọ Xuân (Sao Vàng)