San Francisco (SFO) to Hong Kong (HKG): 6,915 miles (11,128 km) great-circle, about 14h 20m nonstop by our estimate. Cheapest fare observed: $1290 round-trip on Flair Airlines, with 2 stops, departing June 10, 2026.
$1290 round-trip, Flair Airlines F81849, departing 2026-06-10 at 18:45, returning 2026-07-02. The recorded itinerary left on a Wednesday, returning on a Thursday 22 nights later; the fare was observed 46 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1290, it ranked 26th of the 30 round-trip fares we recorded from SFO (median $646). That is 18.7 cents per great-circle mile (round-trip price over one-way distance), above the SFO median of 16.9 cents across 30 round-trip routes.
Routes from SFO of similar length: Guangzhou (6,885 mi) at $1335 and Manila (6,977 mi) at $713.
Flair Airlines had the cheapest fare on 2 of 30 SFO routes. It is the 7th longest of the 30 routes we track from SFO.
Of 24 departure airports with a fare to Hong Kong, San Francisco (SFO) ranked 22nd at $1290. Lowest: $171 from Shanghai (PVG); highest: $1773 from Orlando (MCO); 13 nonstop. Cheapest-fare airlines (routes): HK Express (7), Cathay Pacific (2), Shandong Airlines (2), United Airlines (2), Alaska Airlines (1) and Emirates (1), plus 9 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Asia/Hong_Kong; flight time is our estimate.