Flight Reliability
F9 1724 · Frontier Airlines
Seattle → Phoenix (SEA–PHX)
70
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 27 min
- Average arrival delay
- 2.0%
- Cancelled
- 7 min early
- Median arrival delay
Based on 100 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
F9 1724 departing between 12–3 PM arrived on time 94% of the time, versus 67% between 6–9 PM.
Saturdays have been rough.
F9 1724 arrived on time 92% of the time on Mondays and just 72% on Saturdays. That gap is worth planning around.
A bit ahead of the Frontier Airlines network.
F9 1724 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon92%(13 flights)
- Tue—(4 flights)
- Wed—(4 flights)
- Thu81%(21 flights)
- Fri80%(15 flights)
- Sat72%(18 flights)
- Sun74%(23 flights)
- 12–3 PM94%(31 flights)
- 3–6 PM—(6 flights)
- 6–9 PM67%(30 flights)
- 9 PM–12 AM71%(31 flights)
77%
Mar
Jun 87% → Mar 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 15 |
| February 2026 | 92% | 12 |
| March 2026 | 77% | 22 |
- Departures on time
- 77%
- Diverted
- 0%
- Flights flown
- 98
- Months covered
- 10
Same route, other flights
Keep nerding
Based on 100 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.