Flight Reliability
F9 1957 · Frontier Airlines
Detroit → Houston (DTW–IAH)
67
Usually Fine
WanderNerd Reliability Score
- 65%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 1.1%
- Cancelled
- 1 min
- Median arrival delay
Based on 90 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
F9 1957 departing between 9 AM–12 PM arrived on time 74% of the time, versus 53% between 9 PM–12 AM.
Saturdays have been rough.
F9 1957 arrived on time 71% of the time on Mondays and just 43% on Saturdays. That gap is worth planning around.
Well behind the DTW–IAH route.
F9 1957 arrived on time 65% of the time, versus 81% across the DTW–IAH route.
Lagging the Frontier Airlines network.
F9 1957 arrived on time 65% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon71%(21 flights)
- Tue—(7 flights)
- Wed—(7 flights)
- Thu—(8 flights)
- Fri68%(22 flights)
- Sat43%(14 flights)
- Sun60%(10 flights)
- 6–9 AM74%(27 flights)
- 9 AM–12 PM74%(31 flights)
- 12–3 PM—(8 flights)
- 3–6 PM—(3 flights)
- 6–9 PM—(3 flights)
- 9 PM–12 AM53%(17 flights)
72%
May
Dec 54% → May 72% on time
| Month | On-time percentage | Flights |
|---|---|---|
| December 2025 | 54% | 13 |
| January 2026 | 80% | 10 |
| February 2026 | 64% | 11 |
| March 2026 | 50% | 14 |
| May 2026 | 72% | 29 |
- Departures on time
- 61%
- Diverted
- 0%
- Flights flown
- 89
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 90 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.