Airports › Knoxville (TYS) › May 2025
Airport month · May 2025
McGhee Tyson in May 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In May 2025, reporting carriers scheduled 1,131 domestic departures from McGhee Tyson (TYS). 75.5% left less than 15 minutes late and 75.5% reached their destination on time; 1.7% were cancelled.
Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so TYS departures were 1.2 points below the national departure figure.
A year earlier, in May 2024, the airport had 1,345 departures with 75.9% leaving on time: a change of −0.4 points, with flights down 16%.
Flights arriving at TYS that month were on time 68.2% of the time (1,131 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 25% and national aviation system 22%.
- On time 75.5%
- Arrived 15+ minutes late 22.7%
- Cancelled 1.7%
- Diverted 0.1%
May 2025 against a year earlier, the airport's year and the nation
| Measure | May 2025 | May 2024 | TYS, 12 months to Jul 2026 | All reported flights, May 2025 |
|---|---|---|---|---|
| Departed on time | 75.5% | 75.9% | 76.3% | 76.7% |
| Arrived on time | 75.5% | 73.5% | 75.1% | 75.4% |
| Cancelled | 1.7% | 1.4% | 2.1% | 1.0% |
| Average departure delay (late minutes only) | 22.8 min | 22.8 min | 22.0 min | 17.5 min |
| Scheduled departures a day | 38 | 45 | 37 | 20,188 |
| Scheduled departures | 1,131 | 1,345 | 13,561 | 605,648 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| G4 Allegiant Air | 276 | 24% | 72.1% | 23.0 min | 0.0% |
| OH PSA Airlines | 214 | 19% | 77.6% | 8.9 min | 1.9% |
| AA American Airlines | 180 | 16% | 70.6% | 32.2 min | 2.8% |
| DL Delta Air Lines | 157 | 14% | 87.3% | 1.7 min | 0.0% |
| OO SkyWest Airlines | 99 | 9% | 76.8% | 1.3 min | 1.0% |
| YX Republic Airline | 82 | 7% | 74.4% | 10.5 min | 4.9% |
| UA United Airlines | 62 | 5% | 75.8% | 11.6 min | 3.2% |
| MQ Envoy Air | 58 | 5% | 67.2% | 21.3 min | 5.2% |
| F9 Frontier Airlines | 3 | 0% | 66.7% | 31.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| TYS–CLT | Knoxville to Charlotte | 158 | 74.7% | 19.4 min | 1.3% |
| TYS–ATL | Knoxville to Atlanta | 157 | 87.3% | 1.7 min | 0.0% |
| TYS–DFW | Knoxville to Dallas/Fort Worth | 143 | 69.2% | 29.9 min | 3.5% |
| TYS–ORD | Knoxville to Chicago | 101 | 79.2% | 2.2 min | 1.0% |
| TYS–DCA | Knoxville to Washington | 93 | 72.0% | 4.6 min | 6.5% |
| TYS–LGA | Knoxville to New York | 76 | 73.7% | 12.1 min | 3.9% |
| TYS–DEN | Knoxville to Denver | 74 | 73.0% | 10.6 min | 2.7% |
| TYS–SFB | Knoxville to Sanford | 51 | 64.7% | 24.0 min | 0.0% |
| TYS–PIE | Knoxville to St. Petersburg | 44 | 77.3% | 13.9 min | 0.0% |
| TYS–FLL | Knoxville to Fort Lauderdale | 39 | 59.0% | 46.4 min | 0.0% |
| TYS–MIA | Knoxville to Miami | 31 | 83.9% | 19.1 min | 0.0% |
| TYS–PHL | Knoxville to Philadelphia | 31 | 80.6% | 15.7 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left TYS on time in May 2025?
75.5% of 1,131 scheduled domestic departures left less than 15 minutes late, and 75.5% reached their destination on time. The national figures that month were 76.7% and 75.4%.
How does that compare with a year earlier?
In May 2024, 75.9% of 1,345 departures left on time and 1.4% were cancelled, against 75.5% and 1.7% in May 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for TYS · methodology · corrections.