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Flight Reliability

F9 1863 · Frontier Airlines

Oklahoma City → Denver (OKC–DEN)

64
A Little Dicey
WanderNerd Reliability Score
67%
Arrive within 15 minutes
13 min
Average arrival delay
2.3%
Cancelled
5 min early
Median arrival delay

Based on 130 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 1863 departing between 12–3 PM arrived on time 96% of the time, versus 56% between 6–9 PM.

Friday is doing you no favors.

F9 1863 arrived on time 93% of the time on Saturdays and just 48% on Fridays. That gap is worth planning around.

Lagging the OKC–DEN route.

F9 1863 arrived on time 67% of the time, versus 78% across the OKC–DEN route.

A bit behind the Frontier Airlines network.

F9 1863 arrived on time 67% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon57%(28 flights)
  • Tue90%(10 flights)
  • Wed—(4 flights)
  • Thu68%(22 flights)
  • Fri48%(25 flights)
  • Sat93%(15 flights)
  • Sun65%(23 flights)
On-time by departure window
  • 12–3 PM96%(27 flights)
  • 3–6 PM—(6 flights)
  • 6–9 PM56%(94 flights)
On-time trend by month
96%
May

Jun 55% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%20
July 202544%16
August 202544%18
October 202550%16
November 202592%13
May 202696%28
Departures on time
65%
Diverted
0%
Flights flown
127
Months covered
9

Same route, other flights

Keep nerding

Based on 130 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.