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WanderNerd

Route Reliability

Philadelphia → Key West

PHLEYW · 1,122 miles · Philadelphia International Airport to Key West International Airport

80
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
1 min
Average arrival delay
2.6%
Cancelled
493
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 85% of the time across 493 flights. No comparison to make.

What the data says

Departure time hasn't mattered much.

On-time rates stay between 84% and 86% across the day.

Saturdays have been rough.

PHL–EYW flights arrived on time 93% of the time on Wednesdays and just 75% on Saturdays. That gap is worth planning around.

Trending in the right direction.

PHL–EYW flights arrived on time 90% of the time over the last three months in the data, compared with 78% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon88%(68 flights)
  • Tue89%(62 flights)
  • Wed93%(61 flights)
  • Thu83%(71 flights)
  • Fri88%(72 flights)
  • Sat75%(72 flights)
  • Sun79%(71 flights)
On-time by departure window
  • 6–9 AM86%(102 flights)
  • 9 AM–12 PM84%(375 flights)
On-time trend by month
90%
May

Jun 80% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202584%31
August 202581%31
September 202597%30
October 202597%30
November 202585%47
December 202573%55
January 202677%48
February 202683%48
March 202687%60
April 202694%36
May 202690%31

Based on 493 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.