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Flight Reliability

F9 1093 · Frontier Airlines

Denver → San Francisco (DEN–SFO)

77
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
11 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 163 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

F9 1093 departing between 6–9 AM arrived on time 86% of the time, versus 29% between 9 AM–12 PM.

Thursdays have been rough.

F9 1093 arrived on time 78% of the time on Tuesdays and just 42% on Thursdays. That gap is worth planning around.

A bit behind the Frontier Airlines network.

F9 1093 arrived on time 69% of the time, versus 73% across the Frontier Airlines network.

It basically never cancels.

Out of 163 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon58%(12 flights)
  • Tue78%(40 flights)
  • Wed71%(35 flights)
  • Thu42%(12 flights)
  • Fri77%(13 flights)
  • Sat71%(38 flights)
  • Sun62%(13 flights)
On-time by departure window
  • 6–9 AM86%(21 flights)
  • 9 AM–12 PM29%(17 flights)
  • 3–6 PM—(4 flights)
  • 6–9 PM76%(86 flights)
  • 9 PM–12 AM66%(35 flights)
On-time trend by month
54%
May

Aug 73% → May 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202573%11
September 202585%13
October 202585%13
November 202530%10
January 202693%14
February 202692%12
March 202689%27
April 202655%20
May 202654%26
Departures on time
63%
Diverted
0%
Flights flown
163
Months covered
12

Same route, other flights

Keep nerding

Based on 163 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.