Flight Reliability
F9 2554 · Frontier Airlines
Portland → Denver (PDX–DEN)
55
A Little Dicey
WanderNerd Reliability Score
- 60%
- Arrive within 15 minutes
- 25 min
- Average arrival delay
- 1.4%
- Cancelled
- 4 min
- Median arrival delay
Based on 73 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 2554 departing between 6–9 PM arrived on time 74% of the time, versus 51% between 3–6 PM.
Mondays have been rough.
F9 2554 arrived on time 80% of the time on Saturdays and just 43% on Mondays. That gap is worth planning around.
Well behind the PDX–DEN route.
F9 2554 arrived on time 60% of the time, versus 81% across the PDX–DEN route.
Lagging the Frontier Airlines network.
F9 2554 arrived on time 60% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon43%(14 flights)
- Tue—(9 flights)
- Wed—(0 flights)
- Thu50%(12 flights)
- Fri46%(13 flights)
- Sat80%(10 flights)
- Sun79%(14 flights)
- 12–3 PM—(8 flights)
- 3–6 PM51%(45 flights)
- 6–9 PM74%(19 flights)
57%
Aug
Jun 61% → Aug 57% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 61% | 23 |
| July 2025 | 60% | 25 |
| August 2025 | 57% | 23 |
- Departures on time
- 57%
- Diverted
- 0%
- Flights flown
- 72
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 73 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.