San Francisco (SFO) to New York (NYC): 2,580 miles (4,152 km) great-circle, about 5h 40m nonstop by our estimate. Cheapest fare observed: $140 round-trip on Southwest, with 1 stop, departing May 29, 2026.
$140 round-trip, Southwest WN321, departing 2026-05-29 at 05:25, returning 2026-06-03. The recorded itinerary left on a Friday, returning on a Wednesday 5 nights later; the fare was observed 34 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $140, it ranked 4th of the 30 round-trip fares we recorded from SFO (median $646). That is 5.4 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: Fort Lauderdale (2,579 mi) at $352 and Miami (2,581 mi) at $249.
SFO to NYC is the only one of 30 SFO routes where Southwest priced cheapest. It is the 18th longest of the 30 routes we track from SFO.
Of 50 departure airports with a fare to New York, San Francisco (SFO) ranked 8th at $140. Lowest: $95 from Miami (MIA); highest: $1609 from Auckland (AKL); 18 nonstop. Cheapest-fare airlines (routes): Spirit (8), Frontier (7), Alaska Airlines (3), JetBlue (3), Southwest (3) and Air Canada (2), plus 20 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/New_York; flight time is our estimate.