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Flight Reliability

F9 1243 · Frontier Airlines

Buffalo → Tampa (BUF–TPA)

68
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
17 min
Average arrival delay
0.7%
Cancelled
0 min
Median arrival delay

Based on 144 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 1243 departing between 12–3 PM arrived on time 94% of the time, versus 58% between 3–6 PM.

Saturdays have been rough.

F9 1243 arrived on time 75% of the time on Fridays and just 60% on Saturdays. That gap is worth planning around.

Lagging the BUF–TPA route.

F9 1243 arrived on time 69% of the time, versus 78% across the BUF–TPA route.

A bit behind the Frontier Airlines network.

F9 1243 arrived on time 69% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon73%(22 flights)
  • Tue—(3 flights)
  • Wed—(2 flights)
  • Thu71%(35 flights)
  • Fri75%(20 flights)
  • Sat60%(25 flights)
  • Sun69%(35 flights)
On-time by departure window
  • 9 AM–12 PM82%(11 flights)
  • 12–3 PM94%(16 flights)
  • 3–6 PM58%(57 flights)
  • 6–9 PM70%(57 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
79%
Mar

Jun 33% → Mar 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%21
July 202557%21
August 202595%21
November 202567%12
February 202662%13
March 202679%14
Departures on time
70%
Diverted
0.7%
Flights flown
142
Months covered
11

Same route, other flights

Keep nerding

Based on 144 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.