Flight Reliability
F9 3879 · Frontier Airlines
Dallas–Fort Worth → Tucson (DFW–TUS)
79
Usually Fine
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 2.4%
- Cancelled
- 5 min early
- Median arrival delay
Based on 42 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 3879 departing between 6–9 AM arrived on time 100% of the time, versus 70% between 12–3 PM.
Sunday scaries are real for this one.
F9 3879 arrived on time 89% of the time on Thursdays. On Sundays: 77%.
Better than the DFW–TUS route average.
F9 3879 arrived on time 81% of the time, versus 69% across the DFW–TUS route.
Better than the Frontier Airlines network average.
F9 3879 arrived on time 81% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(1 flights)
- Tue—(3 flights)
- Wed—(0 flights)
- Thu89%(18 flights)
- Fri—(0 flights)
- Sat—(2 flights)
- Sun77%(17 flights)
- 6–9 AM100%(14 flights)
- 12–3 PM70%(10 flights)
- 3–6 PM71%(17 flights)
- Departures on time
- 73%
- Diverted
- 0%
- Flights flown
- 41
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 42 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.