PIE to TYS flight delays & on-time performance
Nonstop flights from St. Petersburg Clearwater International Airport to McGhee Tyson Airport · 550 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PIE or TYS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from St. Petersburg (PIE) to Knoxville (TYS) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.6% were cancelled, and 9% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9am did best (97% on time); around 6pm did worst (57%).
- Thursday was the most reliable day to fly (82% on time) and Monday the least (69%).
- The largest source of delay minutes was late-arriving aircraft (57%).
Which airline is most on time from PIE to TYS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 75% | 0.6% | 23 min | 9.3% | 522 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am100%11 flights
- 9am97%31 flights
- 10am83%54 flights
- 11am77%47 flights
- 12pm87%15 flights
- 1pm76%50 flights
- 2pm76%18 flights
- 3pm67%53 flights
- 4pm77%39 flights
- 6pm57%30 flights
- 7pm67%40 flights
- 8pm70%71 flights
- 9pm69%49 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday69%1.1% cancelled
- Tuesday72%0.0% cancelled
- Wednesday81%0.0% cancelled
- Thursday82%0.0% cancelled
- Friday77%0.0% cancelled
- Saturday76%1.1% cancelled
- Sunday70%1.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft57%
- Extreme weather15%
- Airline (crew, maintenance, cleaning, fueling)15%
- Air traffic control & airport congestion12%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
PIE to TYS: common questions
- How often are PIE to TYS flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from St. Petersburg to Knoxville cancelled?
- 0.6% of scheduled flights were cancelled (3 of 522).
- How long are typical delays?
- Across all flights the average arrival delay was 23 min (early arrivals count as zero). Flights that were late arrived 88 min behind schedule on average, and 9.3% of flights were an hour or more late.
- How long is taxi time at PIE?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TYS to PIE — 74% on time
More flights from St. Petersburg
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PIE → TYS, nonstop flights by US airlines that report to the DOT. How we calculate this.