San José (SJO) to Tokyo (TYO): 8,180 miles (13,165 km) great-circle, about 16h 50m nonstop by our estimate. Cheapest fare observed: $1355 round-trip on Alaska Airlines, with 2 stops, departing May 11, 2026.
$1355 round-trip, Alaska Airlines AS1351, departing 2026-05-11 at 00:55, returning 2026-05-18. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 16 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1355, it ranked 28th of the 30 round-trip fares we recorded from SJO (median $412). That is 16.6 cents per great-circle mile (round-trip price over one-way distance), below the SJO median of 21.6 cents across 29 round-trip routes.
Routes from SJO of similar length: Moscow (6,794 mi) at $1777 and Athens (6,756 mi) at $1256.
Alaska Airlines had the cheapest fare on 2 of 30 SJO routes. It is the 2nd longest of the 30 routes we track from SJO.
Of 34 departure airports with a fare to Tokyo, San José (SJO) ranked 28th at $1355. 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/Costa_Rica, Asia/Tokyo; flight time is our estimate.