Washington → Dublin flights

Washington to Dublin: median sits at $346, but watch that $492 ceiling

Key takeaways

• Median and 25th–75th percentile all land at $346, meaning the majority of snapshots clustered tightly at the low end.
• The high recorded fare was $492 — a 42% spread — so there is real downside risk if you wait or catch an unfavorable window.
• The $346 fare appears to be a fare-floor benchmark, not a fleeting flash sale; its persistence across the bulk of snapshots suggests it recurs with some regularity.
• Sample size is thin at 9 days — treat these figures as directional, not definitive; a larger snapshot window could shift the median.
• No dominant day-of-week or carrier pattern is discernible from this dataset; avoid over-interpreting timing signals without more data.

30-day price trend

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

The full picture

The Washington Regan (DCA) to Dublin fare picture is striking in one specific way: nearly all of the 9 snapshots in this window recorded a price at or very near $346, pulling the median, p25, and p75 to the same value. That kind of compression typically reflects a persistent promotional or base fare that was available for most of the observation window — not random luck. The practical implication is that $346 is a credible target price for this route, and fares within roughly $20 of that mark should be treated as solidly competitive.

The 42% spread between low ($346) and high ($492) is the more cautionary signal. While the bulk of fares sat at the floor, the dataset does include readings nearly $150 higher. Historically, transatlantic fares tend to rise as departure dates approach and remaining seat inventory tightens, so the $492 observations likely reflect either later-booking windows or peak-period pricing. The safest read: if you can book at or near $346, do so — the upside of waiting is minimal given how flat the low end appears, while the downside is a jump of more than 40%.

Carrier and day-of-week patterns cannot be responsibly called out here; 9 snapshots are not enough to distinguish signal from noise on those dimensions. One honest caveat worth stating plainly: with fewer than 10 data points, this analysis is directional. A 30-day or 90-day rolling window could reveal seasonality, carrier competition shifts, or booking-horizon curves that simply aren't visible yet. Use $346 as your mental benchmark and book when you see it — but don't treat this dataset as the final word on when or how prices move on this route.

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