San Francisco (SFO) to Ho Chi Minh City (SGN): 7,828 miles (12,599 km) great-circle, about 16h 10m nonstop by our estimate. Cheapest fare observed: $607 round-trip on Air India, with 2 stops, departing May 28, 2026.
$607 round-trip, Air India AI174, departing 2026-05-28 at 10:30, returning 2026-06-17. The recorded itinerary left on a Thursday, returning on a Wednesday 20 nights later; the fare was observed 33 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $607, it ranked 15th of the 30 round-trip fares we recorded from SFO (median $646). That is 7.8 cents per great-circle mile (round-trip price over one-way distance), below the SFO median of 16.9 cents across 30 round-trip routes.
Routes from SFO of similar length: Bangkok (7,923 mi) at $1269 and Delhi (7,694 mi) at $876.
SFO to SGN is the only one of 30 SFO routes where Air India priced cheapest. It is the 2nd longest of the 30 routes we track from SFO.
Of 20 departure airports with a fare to Ho Chi Minh City, San Francisco (SFO) ranked 12th at $607. Lowest: $183 from Bangkok (BKK); highest: $1566 from Salt Lake City (SLC); 8 nonstop. Cheapest-fare airlines (routes): VietJet Air (3), Air India (2), American Airlines (2), Qatar (2), AirAsia (1) and Cathay Pacific (1), plus 9 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Asia/Ho_Chi_Minh; flight time is our estimate.