August is the cheapest month to fly this route, with average fares around $1191 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $1428 | $1263 | ||
| June 2026 | $1512 | $1263 | Peak | |
| July 2026 | $1217 | $1163 | ||
| August 2026 | $1191 | $1081 | Best |
Departing on Tuesday offers the lowest average fares at $1292. Friday departures are the most expensive at $1450, a difference of $158.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from San Francisco to Tokyo is August, with average round-trip fares around $1191. The lowest fare found in August is $1081.
Tuesday departures are the cheapest, averaging $1292 round trip. The most expensive day is Friday at $1450.
Based on current pricing trends, booking for August travel offers the best value. Avoid June if possible, as fares average $1512 compared to $1191 in the cheapest month. May is a solid middle-ground option at $1428.
Flying in August instead of June can save you approximately $321 per round trip. The cheapest month averages $1191 while the most expensive averages $1512.
Airlines, flight times, price calendar, and more for San Francisco to Tokyo
View SFO → NRT Details