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WanderNerd

Route Reliability

St. Petersburg → Knoxville

PIETYS · 550 miles · St. Pete–Clearwater International Airport to McGhee Tyson Airport

75
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
15 min
Average arrival delay
0.4%
Cancelled
517
Flights in the data

Data through May 2026.

Allegiant Air is the only airline in this data on this route, arriving on time 74% of the time across 517 flights. No comparison to make.

What the data says

Morning-you made the right choice.

PIE–TYS flights departing between 6–9 AM arrived on time 95% of the time, versus 64% between 6–9 PM.

Tuesdays have been rough.

PIE–TYS flights arrived on time 82% of the time on Fridays and just 62% on Tuesdays. That gap is worth planning around.

Trending in the right direction.

PIE–TYS flights arrived on time 84% of the time over the last three months in the data, compared with 74% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon72%(85 flights)
  • Tue62%(29 flights)
  • Wed71%(52 flights)
  • Thu76%(83 flights)
  • Fri82%(88 flights)
  • Sat78%(86 flights)
  • Sun69%(89 flights)
On-time by departure window
  • 6–9 AM95%(21 flights)
  • 9 AM–12 PM79%(126 flights)
  • 12–3 PM78%(87 flights)
  • 3–6 PM76%(84 flights)
  • 6–9 PM64%(149 flights)
  • 9 PM–12 AM73%(45 flights)
On-time trend by month
85%
May

Jun 73% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%52
July 202558%45
August 202568%34
September 202582%39
October 202561%43
November 202571%41
December 202557%42
January 202677%30
February 202689%35
March 202681%58
April 202687%45
May 202685%48

Based on 517 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.