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Route · PHL → TYS · 2020–2025 BTS data

Philadelphia to Knoxville

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHL to TYS (Philadelphia to Knoxville) ranks #3982 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

75.4%
On-time
-3.6 pts
vs US avg
81 min
Delay when late
1,730
Flights
#3982 of 4927
Corpus placement

Cancelled

2.5%

Best Month

Oct 2023 89%

Worst Month

Aug 2024 69%

Distance

554 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 33 16 3 0 OH
Nov 2025 40 9 0 2 OH
Oct 2025 31 6 1 0 OH
Sep 2025 30 8 1 0 OH
Aug 2025 31 6 2 0 OH
Jul 2025 31 14 4 0 OH
Jun 2025 30 12 5 0 OH
May 2025 31 10 0 0 OH
Apr 2025 30 6 0 0 OH
Mar 2025 31 8 1 0 OH
Jan 2025 31 7 2 0 OH
Nov 2024 40 4 0 0 OH
Oct 2024 103 17 0 0 OH
Sep 2024 36 9 0 0 OH
Aug 2024 59 18 2 0 F9,OH
Jul 2024 40 11 0 0 F9,OH
Jun 2024 43 6 0 0 F9,OH
May 2024 38 10 0 0 F9,OH
Apr 2024 30 6 0 0 OH
Mar 2024 35 6 0 0 OH,YX
Jan 2024 31 8 2 1 OH
Dec 2023 43 7 0 0 OH
Nov 2023 30 3 0 0 OH
Oct 2023 57 6 0 0 OH,YX

PHL–TYS seasonal on-time pattern

Best: November (86.5%) · weakest: July (58.1%)

50%60%70%80%90% JanMarAprMayJunJulAugSepOctNovDec 71.7%

Strongest calendar month

November

86.5% on-time · ~34 flights/mo

Busiest calendar month

October

~51 flights/mo avg

Weakest calendar month

July

58.1% on-time · ~43 flights/mo

Cancellation Rate

2.5%

23 of 934 flights

Diversion Rate

0.3%

3 of 934 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

PHL - Philadelphia

Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.

PHL on-time profile

TYS - Knoxville

Full on-time, delay-cause, and seasonal performance for Knoxville, TN.

TYS on-time profile

Compare the two airports

See PHL and TYS side by side on delays, cancellations, and reliability.

Compare PHL vs TYS

Origin-hub reliability standing

Mid-pack among PHL departures

From PHL, this corridor sits with 60 other 75–85% on-time routes out of 65 tracked departures, not the hub's reliability leaders (4 at ≥85%) and not the softest ( 1 below 75%). Destination: Knoxville · fleet on-time rank #4409 of 4927.

What the Data Says About PHL to TYS

The Philadelphia to Knoxville corridor (PHL to TYS) posts a 75.4% on-time rate on the lower edge of the average band, based on 1,730 tracked flights. Late flights run 80.9 minutes behind on average. 3 carriers cover the 554-mile route; over the last 24 months, 23 of 934 flights were cancelled (2.5%) and 0.3% diverted.

The monthly split is wide on this route: Oct 2023 posted the strongest performance at 89% on-time, while Aug 2024 came in at just 69% - a 20-point swing worth factoring into travel timing.

On the multi-year calendar, PHL–TYS peaks in November at 86.5% on-time while October carries the heaviest traffic (~51 flights per month) ; the softest month is July at 58.1%, a 28.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PHL to TYS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PHL to TYS ranks #3982 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from PHL to TYS? ▼
Flights from Philadelphia to Knoxville have a 75.4% on-time rate based on 1,730 flights. The average delay is 80.9 minutes. The best recent month was Oct 2023 with 89% on-time.
What is the cancellation rate for PHL to TYS? ▼
Over the last 24 months, 2.5% of flights on this route were cancelled (23 of 934 flights) and 0.3% were diverted.
How far is the flight from PHL to TYS? ▼
The flight distance from Philadelphia (PHL) to Knoxville (TYS) is approximately 554 miles. This route is served by 3 carriers.
When is the best time to fly from PHL to TYS? ▼
The best recent month for on-time performance was Oct 2023 (89% on-time). The worst was Aug 2024 (69% on-time). Consider booking during months with historically better performance.

Airports on this route

PHL Airport

Philadelphia
TYS Airport

Knoxville
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.

Using PHL–TYS data

PHL–TYS is mid-pack at 75.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare PHL and TYS airport profiles: delay causes and top routes differ even on the same corridor. PHL airport
  • If your dates flex, November (86.5% on-time) beats July (58.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 75.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

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.