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Flight Reliability

F9 1291 · Frontier Airlines

Minneapolis → Denver (MSP–DEN)

83
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
12 min
Average arrival delay
0.4%
Cancelled
10 min early
Median arrival delay

Based on 240 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 1291 departing between 9 AM–12 PM arrived on time 91% of the time, versus 65% between 6–9 PM.

Tuesdays have been rough.

F9 1291 arrived on time 93% of the time on Wednesdays and just 62% on Tuesdays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 1291 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

Ticking up lately.

F9 1291 arrived on time 81% of the time over the last three months in the data, compared with 75% in the three months before that.

The breakdown

On-time by weekday
  • Mon71%(48 flights)
  • Tue62%(13 flights)
  • Wed93%(15 flights)
  • Thu76%(49 flights)
  • Fri78%(46 flights)
  • Sat80%(20 flights)
  • Sun85%(48 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM91%(43 flights)
  • 12–3 PM84%(69 flights)
  • 3–6 PM71%(14 flights)
  • 6–9 PM65%(63 flights)
  • 9 PM–12 AM76%(49 flights)
On-time trend by month
73%
May

Jun 78% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%18
July 202582%17
August 202583%18
September 202547%17
October 202583%23
November 202591%23
December 202564%22
January 202679%19
February 202681%16
March 202679%14
April 202691%22
May 202673%30
Departures on time
77%
Diverted
0%
Flights flown
239
Months covered
12

Same route, other flights

Keep nerding

Based on 240 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.