Boston → Lima flights

Most BOS–Lima fares cluster near $308, but outliers hit $572

Key takeaways

• $308 median fare, with the middle half of prices packed between $298 and $308 — a narrow, consistent band
• $572 high shows occasional spikes well above typical pricing, likely tied to specific dates or sold-out low fare classes
• $298 low matches the p25 mark, meaning a quarter of sampled fares were already at or near the floor price
• Data reflects 17 of the last 30 days, a thinner sample than ideal for pinning down weekly patterns
• 92% spread between low and high looks wide, but it's driven by a handful of expensive outliers, not the typical fare

30-day price trend

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

The full picture

The data shows a route where most fares are remarkably consistent: three-quarters of sampled days priced at or below $308, with the bottom quarter sitting right at $298. That tight clustering between p25 and p75 tells you the 'normal' price for this route is a narrow band just above $300 — not the $572 ceiling that drags the headline spread up to 92%. When you see a fare in the high $290s to low $300s, that's solidly in line with what's typical, not a lucky dip.

The high-end outliers likely represent either last-minute fares, peak-demand dates, or premium cabin fares that crept into the sample. Because we only have 17 cached days of fares within the 30-day window, we can't confidently map how prices evolve across a full booking horizon — there isn't enough coverage to say whether fares soften closer to departure or further out. What we can say is that the bulk of observed prices sit near the median, suggesting this route doesn't swing wildly on a day-to-day basis under normal conditions.

No clear day-of-week or carrier pattern emerges from this dataset — the sample doesn't isolate a dominant airline or show a repeating weekly rhythm, so we won't speculate on one. The practical takeaway is simple: treat anything at or near $308 as a solid, representative price for this route, and be skeptical of paying much more unless travel dates are fixed and inflexible. The honest caveat here is that with only 17 sampled days, this snapshot is a reasonable but incomplete picture — a fuller 30-day window could reveal patterns (seasonal timing, weekday effects) that aren't visible yet.

Ready to look at fares?

• When to book
  Boston → Lima
  AI-authored booking-window guide
  Open →
• Price history
  Boston → Lima
  30-day daily price snapshots
  Open →
• Where to stay
  Best hotels in Lima
  🇵🇪 Peru
  Open →
• When to book
  Boston → Dublin
  Same origin, different destination
  Open →
• Read
  42 Fun Machu Picchu Facts You Probably Didn’t Know
  Peru · 27 min
  Open →