29 Airlines Most Likely to Cancel Your Flight (And How to Avoid Them)

23. Vietnam Airlines – Weather Woes and Sparse Infrastructure

Vietnam Airlines serves an increasingly popular destination, but its reliability can be compromised by seasonal weather (especially typhoons and flooding) and infrastructure limitations at key airports like Hanoi (HAN) and Ho Chi Minh City (SGN). Mechanical issues and limited replacement aircraft contribute to cascading cancellations on certain domestic and regional routes. If flying during the rainy season (May–October), prioritize earlier flights and nonstop routes, and steer clear of last-minute booking. Apps like Flightradar24 can help monitor delays before you even head to the airport.