McGhee Tyson Airport (TYS) delays & on-time performance
Knoxville, Tennessee · 38 nonstop destinations · 10 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at TYS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
77%
arrived < 15 min late
Cancelled
2.1%
285 flights
Avg arrival delay
22 min
94 min when late
Departed on time
78%
avg taxi-out 17 min
Figures cover 13,561 departures from TYS; on-time is measured at arrival. Arrivals into TYS were on time 72% of the time.
Key facts
- Flights departing McGhee Tyson Airport (TYS) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.1% were cancelled, and 10% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (88% on time); PSA Airlines was the least (73%).
- Departures scheduled around 5am did best (92% on time); around 5pm did worst (63%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Most delayed routes from TYS
Lowest on-time arrival rates among regularly flown routes.
- FLL · Fort Lauderdale54%481 flts
- SFB · Sanford69%639 flts
- ORD · Chicago70%2,188 flts
- DCA · Washington71%1,021 flts
- PIE · St. Petersburg74%522 flts
- DFW · Dallas/Fort Worth77%1,738 flts
- CLT · Charlotte79%894 flts
- MIA · Miami82%487 flts
- DEN · Denver85%1,001 flts
- ATL · Atlanta88%1,719 flts
Most reliable routes from TYS
Highest on-time arrival rates among regularly flown routes.
- ATL · Atlanta88%1,719 flts
- DEN · Denver85%1,001 flts
- MIA · Miami82%487 flts
- CLT · Charlotte79%894 flts
- DFW · Dallas/Fort Worth77%1,738 flts
- PIE · St. Petersburg74%522 flts
- DCA · Washington71%1,021 flts
- ORD · Chicago70%2,188 flts
- SFB · Sanford69%639 flts
- FLL · Fort Lauderdale54%481 flts
Best airline at TYS
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 88% | 1.9% | 10 min | 3 | 1,720 |
| United Airlines | 85% | 0.9% | 14 min | 2 | 677 |
| Envoy Air | 82% | 1.1% | 12 min | 5 | 726 |
| Southwest Airlines | 81% | 0.1% | 12 min | 6 | 823 |
| Republic Airways | 77% | 1.0% | 24 min | 4 | 202 |
| American Airlines | 76% | 3.6% | 27 min | 4 | 1,613 |
| SkyWest Airlines | 76% | 2.9% | 29 min | 6 | 1,307 |
| Frontier Airlines | 74% | 0.0% | 23 min | 2 | 135 |
| Allegiant Air | 73% | 0.4% | 23 min | 24 | 3,364 |
| PSA Airlines | 73% | 4.2% | 32 min | 5 | 2,994 |
Best time to fly out of TYS
On-time arrival rate by scheduled departure hour (local time).
- 5am92%739 flts
- 6am87%1,259 flts
- 7am84%1,553 flts
- 8am87%1,072 flts
- 9am82%212 flts
- 10am81%665 flts
- 11am78%864 flts
- 12pm79%930 flts
- 1pm74%870 flts
- 2pm77%655 flts
- 3pm69%522 flts
- 4pm76%1,180 flts
- 5pm63%1,211 flts
- 6pm69%940 flts
- 7pm65%407 flts
- 8pm64%270 flts
- 9pm35%169 flts
Monthly trend
Why departures were late
- Late-arriving aircraft40%
- Airline (crew, maintenance, cleaning, fueling)35%
- Air traffic control & airport congestion15%
- Extreme weather9%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.