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Flight Reliability

F9 1560 · Frontier Airlines

Denver → Madison (DEN–MSN)

80
Pretty Reliable
WanderNerd Reliability Score
75%
Arrive within 15 minutes
9 min
Average arrival delay
0.7%
Cancelled
7 min early
Median arrival delay

Based on 141 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 1560 departing between 9 AM–12 PM arrived on time 82% of the time, versus 73% between 3–6 PM.

Tuesdays have been rough.

F9 1560 arrived on time 86% of the time on Mondays and just 58% on Tuesdays. That gap is worth planning around.

A bit behind the DEN–MSN route.

F9 1560 arrived on time 75% of the time, versus 81% across the DEN–MSN route.

Recent months have been rougher.

F9 1560 arrived on time 70% of the time over the last three months in the data, compared with 78% in the three months before that.

The breakdown

On-time by weekday
  • Mon86%(21 flights)
  • Tue58%(12 flights)
  • Wed—(3 flights)
  • Thu75%(36 flights)
  • Fri77%(22 flights)
  • Sat—(3 flights)
  • Sun77%(43 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM—(2 flights)
  • 9 AM–12 PM82%(17 flights)
  • 12–3 PM—(9 flights)
  • 3–6 PM73%(111 flights)
On-time trend by month
70%
May

Jun 46% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%11
July 202564%14
August 202586%14
September 202571%17
October 202583%18
November 202579%19
December 202555%11
March 202687%15
May 202670%10
Departures on time
74%
Diverted
0%
Flights flown
140
Months covered
11

Same route, other flights

Keep nerding

Based on 141 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.