Knoxville (TYS) departure delays
13,452 departures · 37 routes · January 2025 – August 2026
78.11%
Left on time
Within 15 minutes of schedule
2.24%
Cancelled
Share of departures
101 min
When late, late by
Average delayed departure
#177
Rank
Among graded US airports
What the record says about TYS
TYS runs about as well as the average airport here.
The airlines flying from here are not equally affected. Delta Air Lines left on time 15.8 points more often than PSA Airlines from the same airport — which is the clearest evidence available that a delayed departure is not purely the airport's fault.
Which airlines run best out of TYS
| Airline | Departures | On time |
|---|---|---|
| Delta Air Lines | 1,724 | 87.6% |
| United Airlines | 652 | 83.8% |
| Envoy Air | 685 | 82.8% |
| Southwest Airlines | 635 | 81.6% |
| American Airlines | 1,621 | 75.2% |
| SkyWest Airlines | 1,257 | 75.2% |
| Allegiant Air | 3,385 | 74.2% |
| Republic Airways | 340 | 73.1% |
| PSA Airlines | 3,023 | 71.8% |
Routes out of TYS
Common questions
How bad are delays at Knoxville (TYS)?
78.11% of departures from TYS left within 15 minutes of schedule across 13,452 flights. That is about average.
Which airline is most punctual from TYS?
Delta Air Lines, at 87.6% on time from this airport. The least punctual was PSA Airlines at 71.8%.
How often are flights from TYS cancelled?
2.24% of scheduled departures did not operate.