Flight Reliability
F9 2219 · Frontier Airlines
San Juan → Dallas–Fort Worth (SJU–DFW)
43
Bring Snacks
WanderNerd Reliability Score
- 60%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 5.4%
- Cancelled
- 0 min
- Median arrival delay
Based on 37 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
F9 2219 departing between 6–9 AM arrived on time 82% of the time, versus 50% between 6–9 PM.
Well behind the SJU–DFW route.
F9 2219 arrived on time 60% of the time, versus 80% across the SJU–DFW route.
Lagging the Frontier Airlines network.
F9 2219 arrived on time 60% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(5 flights)
- Tue—(4 flights)
- Wed—(4 flights)
- Thu—(6 flights)
- Fri—(5 flights)
- Sat—(5 flights)
- Sun—(6 flights)
- 6–9 AM82%(11 flights)
- 6–9 PM50%(24 flights)
82%
May
Dec 69% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| December 2025 | 69% | 13 |
| January 2026 | 27% | 11 |
| May 2026 | 82% | 11 |
- Departures on time
- 51%
- Diverted
- 0%
- Flights flown
- 35
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 37 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.