United AirlinesUA86% on time
Flights UA178 14:20 daily
live
Direct flights from Rome (FCO) to Denver (DEN): 7 nonstop departures observed each week across 1 airline. 86% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 4 minutes late. No cancellations were recorded across the 7 tracked flights. The nonstop covers 8,931 km, an estimated 11 hours 57 minutes in the air. Measured by Pro Flight Search from live flight boards at Rome and Denver. Updated 16 September 2026 at 18:10 UTC.
FCO
Rome
heavy · +37
DEN
Denver
smooth · +0
8,931 km · ~11h 57m est.
Runs reliable · 1 airline · 7x weekly · nonstop
86% on time
of the last 7 operated FCO → DEN flights arrived within 15 minutes
Median arrival delay is +4 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+4 minacross the last 7 operated legs
Flight time~11h 57mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at FCO and DEN: 42% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Rome to Denver route actually runs
Pro Flight Search records official board updates for nonstop FCO to DEN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Rome (FCO) to Denver (DEN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/FCO-DEN
FCO to DEN questions
Is FCO–DEN running on time right now?
Mostly on schedule. The departure side at FCO is the weaker end, route health score 75/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from FCO to DEN?
Great-circle distance is 8,931 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 660–796 min gate-to-gate on this route.
How often does FCO–DEN fly?
United Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at FCO and arrival-side delay at DEN, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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