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Flight Reliability

AA 5620 · American Airlines

Knoxville → Philadelphia (TYS–PHL)91% of its flights flew this route. The rest (CLT–GSP) are included in these numbers.

77
Usually Fine
WanderNerd Reliability Score
85%
Arrive within 15 minutes
6 min
Average arrival delay
4.1%
Cancelled
13 min early
Median arrival delay

Based on 338 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AA 5620 departing between 3–6 AM arrived on time 94% of the time, versus 82% between 9 PM–12 AM.

Wednesdays have been rough.

AA 5620 arrived on time 93% of the time on Tuesdays and just 74% on Wednesdays. That gap is worth planning around.

A bit ahead of the TYS–PHL route.

AA 5620 arrived on time 85% of the time, versus 81% across the TYS–PHL route.

Better than the American Airlines network average.

AA 5620 arrived on time 85% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon85%(47 flights)
  • Tue93%(44 flights)
  • Wed74%(49 flights)
  • Thu90%(48 flights)
  • Fri89%(44 flights)
  • Sat76%(46 flights)
  • Sun89%(46 flights)
On-time by departure window
  • 3–6 AM94%(18 flights)
  • 6–9 AM85%(273 flights)
  • 9 AM–12 PM—(5 flights)
  • 9 PM–12 AM82%(28 flights)
On-time trend by month
84%
May

Jun 86% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%29
July 202582%27
August 202583%29
September 202597%30
October 202581%31
November 202583%29
December 202587%30
January 202689%27
February 2026100%10
March 202682%22
April 202676%29
May 202684%31
Departures on time
85%
Diverted
0%
Flights flown
324
Months covered
12

Same route, other flights

Keep nerding

Based on 338 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.