Flight Reliability
F9 3691 · Frontier Airlines
Washington → Atlanta (IAD–ATL)
53
A Little Dicey
WanderNerd Reliability Score
- 57%
- Arrive within 15 minutes
- 34 min
- Average arrival delay
- 0%
- Cancelled
- 9 min
- Median arrival delay
Based on 30 historical flights. Data through May 2026.
What the data says
Well behind the IAD–ATL route.
F9 3691 arrived on time 57% of the time, versus 79% across the IAD–ATL route.
Well behind the Frontier Airlines network.
F9 3691 arrived on time 57% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(6 flights)
- Tue—(2 flights)
- Wed—(3 flights)
- Thu—(7 flights)
- Fri—(7 flights)
- Sat—(3 flights)
- Sun—(2 flights)
- 3–6 PM—(1 flights)
- 6–9 PM50%(26 flights)
- 9 PM–12 AM—(3 flights)
- Departures on time
- 53%
- Diverted
- 0%
- Flights flown
- 30
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 30 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.