San Francisco → Osaka flights

SFO–Osaka fares center at $551 — budget $518–557 to land a solid deal

Key takeaways

• Median fare is $551, based on 30 daily snapshots of the cheapest available cached prices.
• The bottom quartile sits at $518 or below — that's a realistic target if you have flexibility to wait or pounce.
• The absolute low recorded was $464, though at roughly 16% below median, dips like this are uncommon rather than routine.
• The price spread is 27% ($464–$591), meaning fares do move meaningfully — patience can pay off, but the ceiling isn't catastrophically high.
• The p75 is $557, so three-quarters of observed fares came in at $557 or cheaper — overpaying significantly above that level is avoidable with basic monitoring.

30-day price trend

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

The full picture

Fares on San Francisco to Osaka Kansai (KIX) cluster in a fairly defined band. With a median of $551 and a 75th percentile of just $557, most days the cheapest available fare sits within a $6 corridor near the top of that range — which tells you that genuinely low fares are the exception, not the default. The 27% spread between the recorded low ($464) and high ($591) is moderate: wide enough to reward some patience, but not so volatile that waiting indefinitely makes sense. If you see anything at or below $518 — the bottom quartile threshold — that's a credibly good fare worth acting on.

On a long-haul transpacific route like this one, the booking window tends to matter more than the day of the week you search. Historically, fares for Asia-Pacific routes from the U.S. West Coast tend to soften in the 2–5 month lead-time window before departure, before climbing again as seats fill inside 6–8 weeks. Nothing in this dataset contradicts that general pattern, though the tight clustering around $551–$557 suggests this route may not have dramatic last-minute drops — the high watermark of $591 is only 7% above median, implying airlines are holding floors reasonably firm.

No dominant carrier signal is present in the data provided, so it would be speculative to recommend a specific airline. Set a fare alert at $518 (the p25 threshold) and consider booking when you hit that level rather than holding out for the $464 floor, which appears to be a genuine outlier. One honest caveat: 30 snapshots capture a single rolling window and may not reflect seasonal demand shifts — fares around Japanese Golden Week (late April–early May) or peak summer travel can diverge meaningfully from what this dataset shows.

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