Flight Reliability
F9 4712 · Frontier Airlines
Atlanta → Baltimore (ATL–BWI)
37
Bring Snacks
WanderNerd Reliability Score
- 51%
- Arrive within 15 minutes
- 37 min
- Average arrival delay
- 2.0%
- Cancelled
- 14 min
- Median arrival delay
Based on 153 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
F9 4712 arrived on time 68% of the time on Fridays and just 21% on Mondays. That gap is worth planning around.
Well behind the ATL–BWI route.
F9 4712 arrived on time 51% of the time, versus 75% across the ATL–BWI route.
Well behind the Frontier Airlines network.
F9 4712 arrived on time 51% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon21%(19 flights)
- Tue54%(24 flights)
- Wed62%(26 flights)
- Thu58%(19 flights)
- Fri68%(19 flights)
- Sat50%(24 flights)
- Sun37%(19 flights)
- 3–6 PM—(8 flights)
- 9 PM–12 AM49%(142 flights)
53%
May
Nov 46% → May 53% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 46% | 11 |
| December 2025 | 50% | 30 |
| March 2026 | 35% | 20 |
| April 2026 | 61% | 28 |
| May 2026 | 53% | 30 |
- Departures on time
- 47%
- Diverted
- 0%
- Flights flown
- 150
- Months covered
- 11
Same route, other flights
Keep nerding
Based on 153 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.