Boston → Paris flights

Target $343 for Boston–Paris — the range barely moves

Key takeaways

• Median fare is $343, with the middle 50% of observed prices clustering between $334 and $346 — a span of just $12.
• The lowest recorded fare was $322 and the highest $362, a spread of only 12% — unusually compressed for a transatlantic route.
• Timing games carry little reward here: the $40 gap between floor and ceiling means waiting rarely saves more than a round of airport coffee.
• Bottom-quartile fares (≤$334) do exist but represent a minority of observations — book promptly if you see $334 or below.
• Sample size is 17 days, which is a moderate window; treat these figures as directionally reliable but not exhaustive.

30-day price trend

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

The full picture

On the Boston–Paris route, 17 daily snapshots of the cheapest available cached fares produced a median of $343, with prices ranging from $322 at the low end to $362 at the high end. That 12% spread is notably tight for a transatlantic crossing, where seasonal swings and demand surges routinely push spreads above 40%. The interquartile range — $334 to $346 — is even narrower, meaning on most days sampled, fares were within $6 of the median in either direction. The practical implication is that this route is currently pricing with unusual consistency.

Because the spread is so compressed, the conventional wisdom of waiting for a price drop carries less weight here than on routes with wider variance. If your travel dates are set and you see a fare at or below the $334 p25 threshold, that is a credible signal to book — you are in the bottom quartile of what the data shows. Fares above $350 remain within the normal observed band, so there is no strong case for panic-booking at those levels either. The data does not reveal a clear booking-horizon pattern (such as fares softening 6–8 weeks out), so no specific advance-purchase window can be responsibly recommended from this dataset alone.

One honest caveat: 17 samples is a workable but not definitive dataset, and it reflects a specific snapshot window rather than a full annual cycle. Fares on BOS–CDG are sensitive to school holidays, major Paris events, and transatlantic fuel surcharge adjustments — factors that could push prices outside this observed range quickly. Use $343 as your anchor and $322 as your realistic floor, but check back if your travel window is still weeks away.

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