Washington → Mexico City flights

DCA–MEX fares cluster near $194 — but outliers hit $288

Key takeaways

• Median fare is $194 across 17 daily snapshots — a strong anchor for budget planning.
• P25–P75 range is just $194–$195, meaning the middle half of observed fares is remarkably compressed.
• The high of $288 represents a ~49% spread above the floor, signaling occasional sharp price spikes.
• Low fare of $193 is essentially equal to the median — the floor is very accessible most days.
• Sample size is 17 days, so treat these figures as directional; a fuller 30-day window would add confidence.

30-day price trend

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

The full picture

The Washington DCA to Mexico City MEX fare landscape is defined by a striking split personality. On the vast majority of observed days, the cheapest available fare sits right at $194 — the interquartile range of $194 to $195 tells you that at least half of all daily snapshots landed within a single dollar of each other. In practical terms, that means the "normal" price for this route is about as predictable as you'll find in domestic airfare, let alone an international one.

The outlier story is worth heeding, though. The high of $288 and the 49% spread percentage confirm that prices can and do jump sharply — nearly $100 above the typical floor. These spikes tend to occur when base inventory sells down and airlines reprice remaining seats upward, or around high-demand travel windows. The data doesn't let us pinpoint exactly when those spikes appear in the booking horizon, but the practical implication is clear: when you see $194 or close to it, that is historically the floor, and waiting in hopes of a further discount is unlikely to be rewarded.

Carrier-level patterns are not visible in this dataset, and with 17 samples rather than a full 30-day window, some caution is warranted. There's no reliable day-of-week signal to extract from data this size. What the numbers do support confidently is a straightforward booking heuristic: $194 is the target, anything under $200 is squarely in the bottom quartile of observed fares, and prices above $230 represent genuine elevation above the norm. Book when you see the $194–$195 range; the upside of waiting is minimal and the downside risk, as the $288 high shows, is real.

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