Washington → Boston flights

DCA–BOS hovers near $55 — most fares cluster tight below $61

Key takeaways

• Median fare of $55 across the sampled snapshots makes this a consistently cheap route
• Bottom quartile sits at $51 — barely off the observed floor, so there's little room left to undercut
• Top quartile at $61 means 75% of fares stay within about $10 of the median
• Occasional spikes to $84 show up, but they're outliers rather than the norm
• Only 12 days of snapshots were sampled, so treat this as a directional read, not a full seasonal picture

30-day price trend

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

The full picture

The DCA–Boston route shows a tight, low-cost fare pattern: a $55 median with 75% of observed fares falling between $51 and $61. That's a narrow band for a shuttle-style corridor, and it suggests this is a route where airlines compete hard on a fairly standard base fare rather than letting prices drift widely with demand.

With only 12 days sampled, we can't make strong claims about a booking window where prices systematically soften — the data doesn't cover a long enough horizon to show that kind of trend. What we can say is that the bulk of fares stay anchored near the $51–$61 range, with the $84 high appearing to be an isolated spike rather than a sustained price level. If you see something in that $51–$61 zone, you're in line with what this route typically costs; paying meaningfully more likely means you're hitting a higher-demand departure or a less flexible fare class.

No single carrier's pattern is distinguishable from this data, so we can't say whether the spikes are tied to a specific airline or schedule slot. The honest caveat here is sample size: 12 days is a thin window, and spreadPct of 65% (driven mostly by that one high outlier) means the range looks more volatile on paper than the clustering of actual fares suggests. Treat the $55 median as a solid reference point, but don't read too much into the timing of when to book based on this snapshot alone.

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