Skip to content
WanderNerd
Check a flight

Flight Reliability

F9 1226 · Frontier Airlines

Raleigh–Durham → San Juan (RDU–SJU)

26
Bring Snacks
WanderNerd Reliability Score
55%
Arrive within 15 minutes
61 min
Average arrival delay
3.0%
Cancelled
11 min
Median arrival delay

Based on 101 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 1226 departing between 3–6 PM arrived on time 64% of the time, versus 53% between 9 PM–12 AM.

Mondays have been rough.

F9 1226 arrived on time 74% of the time on Fridays and just 40% on Mondays. That gap is worth planning around.

Well behind the RDU–SJU route.

F9 1226 arrived on time 55% of the time, versus 73% across the RDU–SJU route.

Well behind the Frontier Airlines network.

F9 1226 arrived on time 55% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon40%(25 flights)
  • Tue—(3 flights)
  • Wed50%(12 flights)
  • Thu—(6 flights)
  • Fri74%(27 flights)
  • Sat53%(17 flights)
  • Sun—(8 flights)
On-time by departure window
  • 9 AM–12 PM—(4 flights)
  • 12–3 PM—(7 flights)
  • 3–6 PM64%(11 flights)
  • 6–9 PM56%(36 flights)
  • 9 PM–12 AM53%(40 flights)
On-time trend by month
60%
Apr

Jun 43% → Apr 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202543%14
July 202553%17
August 202560%10
December 202546%13
March 202657%14
April 202660%10
Departures on time
56%
Diverted
0%
Flights flown
98
Months covered
10

Same route, other flights

Keep nerding

Based on 101 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.