San Francisco → Paris flights

SFO–CDG median is $410 — bottom quartile starts at $356

Key takeaways

• Median fare: $410 across 30 daily snapshots of the cheapest available cached fares.
• Bottom quartile floor: $343 — fares dropped this low on some days, with the 25th percentile sitting at $356.
• Top quartile ceiling: $432–$447 — about a 25% premium over the low end, so timing does matter.
• Spread of 30% between low and high ($343 vs. $447) is meaningful — wide enough that monitoring fares over several weeks is worth the effort.
• Target zone: $356–$410 — anything at or below the median represents a solid outcome; anything under $370 puts you in the bottom quartile.

30-day price trend

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

The full picture

The 30-day snapshot window for San Francisco to Paris (SFO–CDG) shows a price band that is neither razor-thin nor wildly volatile. At a 30% spread between the observed low of $343 and the high of $447, there is genuine upside to monitoring fares rather than booking the first price you see. The interquartile range — $356 to $432 — is where most realistic booking outcomes land, and the $76 gap between those two figures is enough to justify setting a fare alert and waiting a reasonable window rather than acting on impulse.

The data does not identify a specific booking horizon (e.g., "book 6 weeks out"), but the gap between the 25th percentile ($356) and the median ($410) suggests that sub-median fares appear with enough regularity — across roughly the bottom quarter of observed days — to be worth targeting. A practical approach: set an alert at $370–$380 as your trigger. If the fare hasn't moved into that zone within three to four weeks of shopping, the $400–$415 range around the median remains a defensible price for a transatlantic itinerary on one of the world's busiest long-haul routes.

No dominant carrier emerged from this dataset, so the data does not support singling out one airline as a consistent price leader on this route. SFO–CDG is served by multiple carriers including Air France, United, and various oneworld and Star Alliance partners, which likely contributes to the competitive spread. One honest caveat: these figures reflect cached lowest fares at the time of daily snapshots and may not represent fares available at every point in a booking window — actual availability at the low end can be limited to specific fare buckets that sell out quickly.

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