San Francisco → Tokyo flights

SFO→Tokyo: Median $246, but spikes to $342 are real

Key takeaways

• Median fare is $246, with the middle 50% of observations packed tightly between $242 (p25) and $250 (p75).
• The floor is $233 — reachable, but only 25% of snapshots came in at or below $242, so don't count on it.
• The ceiling hits $342 — a 47% spread between low and high means outlier spikes are a genuine risk on this route.
• The $242–$250 band is your target: that's where fares clustered most consistently across the 30-day window.
• No dominant carrier signal was present in this dataset, so compare across airlines rather than defaulting to one.

30-day price trend

See full numbers and stats on the SFO → NRT price history page.

The full picture

The San Francisco–Tokyo route tells an interesting story in two parts. On a typical day, fares are remarkably stable: half of all 30 snapshots fell within just an $8 band, from $242 to $250. That kind of tight interquartile range suggests a baseline price that carriers are reluctant to move much in either direction under normal demand conditions. If you see a fare in that window, it's consistent with what the market has been offering — you're not leaving significant money on the table.

The other part of the story is the high end. The $342 observation — 47% above the $233 floor — shows that this route can spike meaningfully. A spread of 47% on a transpacific fare is wide enough to matter in dollar terms (roughly $109 between best and worst observed price). These spikes most likely reflect high-demand departure windows, last-minute inventory compression, or reduced availability on lower fare classes. The practical implication: if you're watching fares and see prices drift above $260 or so, you're heading toward outlier territory and it's worth locking in rather than waiting.

On booking timing, the data doesn't include departure-date metadata, so we can't pinpoint a precise advance-purchase sweet spot for this route. General transpacific patterns suggest fares on SFO–NRT tend to firm up inside 3–4 weeks of departure and around peak travel periods (Golden Week in Japan, summer, and the holidays). Given that most of the observed prices cluster so tightly near the median, the bigger lever here isn't when in the week you search — it's catching the fare before demand pushes it into that upper tail. Set a price alert for anything at or below $246 and move when it triggers.

One honest caveat: 30 snapshots capture the cheapest cached fare on each day, not every available itinerary. Actual bookable prices may vary, and this window may not have captured all seasonal demand patterns for this route.

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