ON TIMEBOARD

F9 2553 on time

Frontier Airlines 2553: Denver to Portland at 3:08 p.m. (past 12 months)

On time
86%
234 flights · likely 81–90%
Cancelled
0.4%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+64 min
average delay
Similar flights
87%
F9, same route & hour

About 1 in 7 F9 2553 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.4% were cancelled. The typical flight landed 5 minutes early.

F9 2553: DEN → PDX

Scheduled to leave Denver at 3:08 p.m. local time. Over the past year it arrived on time 86% of the time (234 flights), in line with other F9 flights on the route at that hour (87%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: too few flights (11 flights)AugSep 2025: too few flights (13 flights)SepOct 2025: 92% on time (26 flights)92OctNov 2025: 96% on time (23 flights)96NovDec 2025: 60% on time (15 flights)60DecJan 2026: too few flights (8 flights)JanMar 2026: 80% on time (15 flights)80MarApr 2026: 86% on time (21 flights)86AprMay 2026: 86% on time (22 flights)86MayJun 2026: 90% on time (29 flights)90JunJul 2026: 87% on time (31 flights)87JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday3485%
Tuesday3294%
Wednesday2488%
Thursday3689%
Friday3583%
Saturday3485%
Sunday3979%

Why it was late

Airline (crew, maintenance, ops) 41%Late inbound plane 30%Air traffic & airport (NAS) 22%Severe weather 7%

All flights DEN → PDX · Connecting off F9 2553? Check the risk

Questions

How often is F9 2553 from DEN to PDX late?

Frontier Airlines 2553 from Denver, CO to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 14% of 234 scheduled flights between September 2025 and August 2026. 0.4% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.