Flight Reliability
F9 4063 · Frontier Airlines
Baltimore → Chicago (BWI–ORD)
42
Bring Snacks
WanderNerd Reliability Score
- 65%
- Arrive within 15 minutes
- 34 min
- Average arrival delay
- 4.8%
- Cancelled
- 1 min
- Median arrival delay
Based on 83 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 4063 departing between 9 PM–12 AM arrived on time 85% of the time, versus 53% between 9 AM–12 PM.
Sunday scaries are real for this one.
F9 4063 arrived on time 86% of the time on Thursdays and just 54% on Sundays. That gap is worth planning around.
Lagging the BWI–ORD route.
F9 4063 arrived on time 65% of the time, versus 76% across the BWI–ORD route.
Lagging the Frontier Airlines network.
F9 4063 arrived on time 65% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon70%(20 flights)
- Tue—(0 flights)
- Wed—(1 flights)
- Thu86%(14 flights)
- Fri60%(20 flights)
- Sat—(0 flights)
- Sun54%(24 flights)
- 9 AM–12 PM53%(30 flights)
- 12–3 PM—(3 flights)
- 3–6 PM60%(15 flights)
- 6–9 PM55%(11 flights)
- 9 PM–12 AM85%(20 flights)
73%
Jan
Jul 30% → Jan 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| July 2025 | 30% | 10 |
| August 2025 | 69% | 16 |
| September 2025 | 94% | 17 |
| December 2025 | 55% | 11 |
| January 2026 | 73% | 11 |
- Departures on time
- 70%
- Diverted
- 0%
- Flights flown
- 79
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 83 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.