Washington → Reykjavík flights

Most fares cluster at $437 — watch for rare spikes to $621

Key takeaways

• Median fare is $437, and that figure also matches the p25 and p75, meaning most observed days priced at or near this level
• High of $621 shows occasional spikes well above the typical fare — a 42% spread from low to high
• Only 8 snapshots were sampled, so this is a thin dataset — treat patterns as directional, not definitive
• No reliable day-of-week or carrier pattern emerges from this sample size
• If you see a fare near $437, that aligns with the bulk of observed pricing — paying much more likely means hitting a spike day

30-day price trend

See full numbers and stats on the DCA → KEF price history page.

The full picture

The data shows a fairly unusual pattern: the median, 25th percentile, and 75th percentile all sit at exactly $437, while the high reaches $621. That means most of the days we captured priced identically at $437, with just a handful of outlier snapshots pushing the high end up. The resulting 42% spread looks large on paper, but it's driven by a minority of expensive days rather than a smooth, gradual climb — so don't read this as a steadily rising or falling curve.

With only 8 snapshots, this sample is too thin to confidently map out a booking-window curve (e.g., how prices move from 60 days out to 7 days out). We can't responsibly tell you that prices soften at a particular point in the booking horizon, because the data doesn't show that progression — it shows a cluster of flat, low-$437 fares and a few spikes. The safest takeaway is that $437 appears to be the going rate for this route much of the time, and the $621 figure represents what you risk paying if you land on a higher-priced day, possibly due to a constrained departure date, a sold-out cheap fare class, or a seasonal demand bump.

We don't have enough visibility into carrier identity or weekly patterns to make claims about specific airlines or weekday effects on this route — the data simply doesn't support it. If your travel dates are flexible, it's reasonable to treat $437 as a fair target price and be ready to book when you see it, rather than waiting for a deeper discount that this dataset gives no evidence will appear. The honest caveat: with just 8 data points, this snapshot could easily look different with a larger sample, and seasonal factors specific to Reykjavik travel aren't captured here at all.

Ready to look at fares?

• When to book
  Washington → Reykjavík
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  Washington → Reykjavík
  30-day daily price snapshots
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• When to book
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