Boston → Rio de Janeiro flights

Median fare $339 — but a thin sample means treat this as a rough guide

Key takeaways

• $339 median fare, which is also the floor price observed across all 12 snapshots
• Bottom quartile (p25) sits at $339, meaning at least a quarter of snapshots hit the lowest recorded fare
• Top quartile (p75) is $389, only $50 above median — most fares cluster tightly near the low end
• High-end outlier of $481 shows a 42% spread, so occasional price spikes do occur
• Only 12 samples collected — this is a thin dataset, so treat patterns as directional, not definitive

30-day price trend

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

The full picture

The data shows a $339 median fare for Boston to GIG, with that same $339 figure representing the lowest price seen across all 12 snapshots. That's a notable signal: a meaningful share of observations are landing right at the floor, suggesting $339 is a realistic target rather than a rare deal. The p75 of $389 tells us most fares — roughly three-quarters of them — stay within $50 of the median, so the everyday booking experience is more stable than the headline spread suggests.

That said, the 42% spread between low and high ($339 to $481) means outliers exist, and travelers who book during a demand spike or a less favorable window could pay meaningfully more. With only 12 snapshots, we can't confidently map this spread to a specific booking horizon — we simply don't have enough data points to say prices reliably soften at a particular number of days before departure. What we can say is that the bulk of observed fares sit close to the median, so if you see something near $339–$389, that aligns with the normal range rather than an unusual low.

We don't have visibility into a dominant carrier for this route from the data provided, so we can't speak to airline-specific pricing behavior or day-of-week patterns — there simply isn't enough granularity in this sample to support those claims. The honest caveat here is twofold: 12 snapshots is a small sample for a route like this, and the tight clustering between median and p75 could shift with more data collection. Treat the $339 figure as a strong reference point for what a good fare looks like, but build in flexibility given the real possibility of hitting a higher-priced snapshot like the $481 high observed in this window.

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• When to book
  Boston → Rio de Janeiro
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  Boston → Rio de Janeiro
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• When to book
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