Cheap Flights from Hong Kong to Hanoi — $109

The route Hong Kong — Hanoi is served by a single airline — Hong Kong Express Airways. This means that when planning your trip, you won’t need to spend time choosing between dozens of carriers: all flights are operated by one provider, which simplifies the booking process. Despite the limited choice, passengers can still plan ahead, select optimal departure dates, and buy tickets at the lowest price — from $109. Using our service, you can quickly compare available Hong Kong Express Airways flights and book a seat in advance at a favorable rate.

The distance between Hong Kong and Hanoi is 875km (543 miles). The average flight duration is 2h 13m. There are 40 direct flights from Hong Kong to Hanoi. The time difference between Hong Kong and Hanoi is 1h. Flights from Hong Kong begin at 7:40 AM. The latest flight from Hong Kong departs at 10:35 PM

Noi Bai International (HAN) is Hanoi’s main international gateway and typically serves long-haul carriers and full-service regional airlines alongside some low-cost carriers. Located about 45–50 km north of the city center, travel to central Hanoi usually takes 40–60 minutes by expressway depending on traffic; airport bus lines and shuttle services can cost roughly VND 40,000–150,000 while taxis and ride-hailing trips are commonly 300,000–500,000 VND. Domestic flights also use Noi Bai and it can be perceived as mid-range to premium in terms of fares when compared with smaller regional airports. Pros: comprehensive facilities and frequent international connections. Cons: distance from downtown and occasional heavy traffic can add time and cost.

Hong Kong International Airport (HKG) is the city’s major international hub and a full-service gateway handling long-haul and regional carriers alongside premium and low-cost operators. Located on Chek Lap Kok island about 34 km from Central, it’s typically viewed as a high-quality, well-connected airport rather than a budget option. Ground links include the Airport Express train (around 24 minutes to Central, fares usually in the mid-range), multiple bus routes (45–60 minutes, cheaper) and taxis (roughly 30–45 minutes, higher cost). Pros: fast transfers, plentiful lounges and dining choices; cons: distance from downtown and occasional peak-hour congestion can add time and cost to journeys.