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WanderNerd

Flight Reliability

F9 1039 · Frontier Airlines

Raleigh–Durham → Orlando (RDUMCO)

78
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
8 min
Average arrival delay
1.6%
Cancelled
6 min early
Median arrival delay

Based on 257 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 1039 departing between 3–6 PM arrived on time 88% of the time, versus 73% between 6–9 AM.

Sunday scaries are real for this one.

F9 1039 arrived on time 90% of the time on Fridays and just 67% on Sundays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 1039 arrived on time 76% of the time, versus 73% across the Frontier Airlines network.

Trending in the right direction.

F9 1039 arrived on time 77% of the time over the last three months in the data, compared with 64% in the three months before that.

The breakdown

On-time by weekday
  • Mon72%(36 flights)
  • Tue77%(26 flights)
  • Wed78%(23 flights)
  • Thu84%(45 flights)
  • Fri90%(39 flights)
  • Sat67%(39 flights)
  • Sun67%(45 flights)
On-time by departure window
  • 6–9 AM73%(22 flights)
  • 9 AM–12 PM75%(24 flights)
  • 12–3 PM74%(152 flights)
  • 3–6 PM88%(16 flights)
  • 6–9 PM82%(39 flights)
On-time trend by month
77%
May

Jun 91% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%22
July 202582%11
August 202567%21
September 202584%25
October 202582%22
November 202582%28
December 202557%23
January 202664%14
February 202670%20
March 202680%30
April 202675%24
May 202677%13
Departures on time
77%
Diverted
0%
Flights flown
253
Months covered
12

Based on 257 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.