Cheap Flights from Hong Kong to San Francisco Starting at $405

Hong Kong International Airport (HKG) is the city’s main international hub, handling long-haul and regional flights for full-service carriers and many low-cost airlines alike. It sits on reclaimed land near Lantau Island, roughly 30–40 km from Central Hong Kong; travel times to downtown are typically 25–35 minutes by Airport Express train, around 45–60 minutes by taxi depending on traffic, and about 60–90 minutes by public bus, with fares varying by mode. The airport is known for efficient connections, plentiful lounges, and extensive shopping, though it can be busy during peak periods and requires transfers across terminals for some services. HKG is usually viewed as convenient and well-served for international travel.

San Francisco International Airport (SFO) is the region’s primary international gateway and a major hub for full-service carriers, with numerous long-haul and transcontinental connections; it can be pricier than nearby secondary airports, though budget options are available. The airport sits about 13 miles (≈21 km) south of downtown San Francisco. Travelers typically reach the city by BART (Bay Area Rapid Transit) in roughly 30–40 minutes with fares generally in the low to mid single-digit dollars, by taxi or rideshare in 25–45 minutes depending on traffic with variable fares, or by airport shuttle and rental car. Pros: frequent long-haul flights, strong ground-transport links, and extensive amenities; cons: can be busy during peak hours and some terminals involve long walks between gates.

In different months, ticket prices from Hong Kong to San Francisco vary: minimum — $405 (December 2025), maximum — $1,097 (January 2026). Typically, the flight costs $751–$1,097.

The route Hong Kong — San Francisco is served by many carriers — 6 in total, including Cathay Pacific, United Airlines, China Airlines, Philippine Airlines, China Eastern Airlines, and Eva Air. This gives passengers wide opportunities: from finding the lowest fare (from $405) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.