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IAD to Rome fares show a $300 median over the last 30 days, with wide swings; book once a fare nears the low $200s.
Written from this route's 30-day price index (30 daily samples). Article last regenerated Nov 7, 2026.
See full numbers and stats on the IAD → FCO price history page.
Over the last 30 days, IAD–Rome fares have ranged from $198 to $389, with a median of $300. That's a 96% spread between low and high — a notably wide range for a single route, which tells us pricing here is volatile rather than stable. The middle half of fares (p25–p75) still spans $221 to $364, so even typical fares vary by over $140, not just the extremes.
With this much spread, timing within the booking window matters more than usual. The fact that a quarter of sampled fares landed at $221 or below shows that sub-$250 fares aren't rare outliers — they're accessible often enough to be worth waiting for. Travelers with flexibility should treat anything near or below the $221 mark as a strong fare worth booking quickly, while anything above $364 is on the expensive end of recent history and worth passing on if possible.
The data we have doesn't show a clear day-of-week or carrier pattern — no single airline dominates clearly enough in this sample to call out a preferred one, and we don't have booking-date (how far in advance) information, only a snapshot of cached fares across the past 30 days. So while we can describe the range and typical levels confidently, we can't say whether booking 2 weeks out versus 2 months out makes a measurable difference on this specific route. The honest takeaway: expect real volatility, use $300 as your benchmark, and treat fares at or below $221 as good value based on recent history.
Why we regenerated this article: Median fare ↓ 18% ($364 → $300). We only rewrite when the underlying price index actually moves — stable weeks keep the previous take.
AI-authored from this route's 30-day price index. Article last regenerated Nov 7, 2026. Fares shift continuously — confirm at booking.