San Diego (SAN) to Tokyo (TYO): 5,582 miles (8,983 km) great-circle, about 11h 40m nonstop by our estimate. Cheapest fare observed: $756 round-trip on Frontier, with 1 stop, departing May 6, 2026.
$756 round-trip, Frontier F93383, departing 2026-05-06 at 18:44, returning 2026-05-18. The recorded itinerary left on a Wednesday, returning on a Monday 12 nights later; the fare was observed 11 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $756, it ranked 26th of the 30 round-trip fares we recorded from SAN (median $279). That is 13.5 cents per great-circle mile (round-trip price over one-way distance), close to the SAN median of 15.0 cents across 30 round-trip routes.
Routes from SAN of similar length: Frankfurt (5,827 mi) at $683 and Madrid (5,842 mi) at $770.
Frontier had the cheapest fare on 16 of 30 SAN routes. It is the 6th longest of the 30 routes we track from SAN.
Of 34 departure airports with a fare to Tokyo, San Diego (SAN) ranked 16th at $756. Lowest: $80 from Sapporo (CTS); highest: $1812 from Washington DC (DCA); 11 nonstop. Cheapest-fare airlines (routes): Scoot (4), Frontier (3), WestJet (3), Alaska Airlines (2), Jetstar (2) and Jetstar Japan (2), plus 17 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Asia/Tokyo; flight time is our estimate.