Washington → Barcelona flights

Most fares sit near $384 — but outliers spike past $1,700

Key takeaways

• Median fare was $384, and it matched the bottom quartile (p25), meaning low prices showed up often in this sample.
• 75% of fares were $504 or less, suggesting $500 is a reasonable ceiling to target.
• High outlier hit $1,748, a huge spread (355%) likely reflecting a last-minute or premium-cabin fare rather than typical pricing.
• With only 11 snapshots, this is a thin sample — treat patterns as directional, not definitive.
• No dominant carrier was identifiable from the data, so airline-specific booking advice isn't supported here.

30-day price trend

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

The full picture

The fare data for Washington (DCA) to Barcelona (BCN) shows a striking split: a tight, low cluster around $384–$504, and then a single extreme outlier at $1,748 that inflates the overall spread to 355%. Since the median ($384) equals the 25th percentile, it appears that most of the 11 sampled fares were bunched near the low end, with the high end driven by one or two anomalous snapshots — possibly a sold-out economy cabin or a business-class fare that got cached alongside standard pricing.

We can't identify a precise booking window from only 11 days of snapshots, but the consistency of fares at or near $384 suggests that reasonable pricing is available fairly often on this route, not just during a narrow promotional window. The 75th percentile sitting at $504 is a useful practical ceiling: if you're quoted meaningfully above that, it's worth waiting or checking alternate dates. There's no visible day-of-week or carrier pattern in this dataset, so we can't respons­ibly recommend specific departure days or airlines based on this data alone.

The honest caveat here is sample size and volatility: 11 snapshots is a small window, and the presence of one fare over $1,700 means the "spread" statistic is being driven by an extreme value rather than typical day-to-day fluctuation. Treat the $384–$504 range as the realistic target band for this route, and be skeptical of any single data point — including the high outlier — as representative of normal pricing. A longer observation period would sharpen this guidance considerably.

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