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WanderNerd

Route Reliability

St. Petersburg → Key West

PIEEYW · 238 miles · St. Pete–Clearwater International Airport to Key West International Airport

89
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
4 min early
Average arrival delay
0.6%
Cancelled
313
Flights in the data

Data through May 2026.

Allegiant Air is the only airline in this data on this route, arriving on time 85% of the time across 313 flights. No comparison to make.

What the data says

Morning flights do better here.

PIE–EYW flights departing between 6–9 AM arrived on time 94% of the time, versus 60% between 6–9 PM.

Thursdays have been rough.

PIE–EYW flights arrived on time 96% of the time on Wednesdays and just 78% on Thursdays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon90%(51 flights)
  • Tue(2 flights)
  • Wed96%(52 flights)
  • Thu78%(49 flights)
  • Fri87%(52 flights)
  • Sat85%(52 flights)
  • Sun80%(51 flights)
On-time by departure window
  • 6–9 AM94%(90 flights)
  • 9 AM–12 PM93%(28 flights)
  • 12–3 PM87%(134 flights)
  • 3–6 PM80%(15 flights)
  • 6–9 PM60%(42 flights)
On-time trend by month
89%
May

Jun 89% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%26
July 202592%26
August 202596%27
September 202596%24
October 202593%27
November 202592%26
December 202565%26
January 202681%26
February 202683%24
March 202663%24
April 202685%26
May 202689%27

Based on 313 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.