Route · TYS → PHL · 2020–2025 BTS data
Knoxville to Philadelphia
The TYS–PHL corridor (Knoxville, TN → Philadelphia, PA) runs ahead of the national average, served by 3 carriers across roughly 554 miles.
Data updated 2026-06-13
- 85.8%
- On-time
- +6.8 pts
- vs US avg
- 94 min
- Delay when late
- 1,879
- Flights
Cancelled
1.5%
Best Month
Oct 2023 93%
Worst Month
Aug 2024 75%
Distance
554 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 33 | 5 | 1 | 0 | OH |
| Nov 2025 | 39 | 9 | 0 | 0 | OH |
| Oct 2025 | 31 | 6 | 0 | 0 | OH |
| Sep 2025 | 30 | 1 | 0 | 0 | OH |
| Aug 2025 | 31 | 5 | 2 | 0 | OH |
| Jul 2025 | 30 | 5 | 3 | 0 | OH |
| Jun 2025 | 30 | 5 | 1 | 0 | OH |
| May 2025 | 31 | 6 | 0 | 0 | OH |
| Apr 2025 | 31 | 5 | 0 | 0 | OH |
| Mar 2025 | 30 | 4 | 0 | 0 | OH |
| Jan 2025 | 31 | 0 | 2 | 0 | OH |
| Nov 2024 | 40 | 5 | 0 | 0 | OH |
| Oct 2024 | 102 | 15 | 0 | 1 | OH |
| Sep 2024 | 36 | 8 | 0 | 0 | OH |
| Aug 2024 | 59 | 15 | 2 | 1 | F9,OH |
| Jul 2024 | 40 | 11 | 0 | 0 | F9,OH |
| Jun 2024 | 44 | 0 | 0 | 0 | F9,OH |
| May 2024 | 38 | 7 | 0 | 0 | F9,OH |
| Apr 2024 | 30 | 8 | 0 | 0 | OH |
| Mar 2024 | 35 | 3 | 0 | 0 | OH,YX |
| Jan 2024 | 31 | 5 | 3 | 0 | OH |
| Dec 2023 | 42 | 2 | 0 | 0 | OH |
| Nov 2023 | 30 | 0 | 0 | 0 | OH |
| Oct 2023 | 57 | 4 | 0 | 0 | OH,YX |
Cancellation Rate
1.5%
14 of 931 flights
Diversion Rate
0.2%
2 of 931 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
TYS - Knoxville
Full on-time, delay-cause, and seasonal performance for Knoxville, TN.
Origin airport →PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
Destination airport →Compare the two airports
See TYS and PHL side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to TYS–PHL.
Routes with a similar on-time rate
What the Data Says About TYS to PHL
Knoxville to Philadelphia (TYS to PHL) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.8% on-time rate across 1,879 flights, with delays that do happen averaging 94.3 minutes. The corridor runs roughly 554 miles and is served by 3 carriers. Over the most recent 24 months, 14 of 931 flights were cancelled (1.5%) and 2 diverted (0.2%).
The monthly split is wide on this route: Oct 2023 posted the strongest performance at 93% on-time, while Aug 2024 came in at just 75% - a 18-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from TYS to PHL? ▼
What is the cancellation rate for TYS to PHL? ▼
How far is the flight from TYS to PHL? ▼
When is the best time to fly from TYS to PHL? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.