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Flight Reliability

AA 4577 · American Airlines

New York → GSO (LGA–GSO)100% of its flights flew this route. The rest (ORF–ORD) are included in these numbers.

26
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WanderNerd Reliability Score
71%
Arrive within 15 minutes
14 min
Average arrival delay
12.7%
Cancelled
6 min early
Median arrival delay

Based on 316 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

AA 4577 departing between 6–9 PM arrived on time 73% of the time, versus 58% between 3–6 PM.

Sunday scaries are real for this one.

AA 4577 arrived on time 83% of the time on Mondays and just 59% on Sundays. That gap is worth planning around.

A bit behind the LGA–GSO route.

AA 4577 arrived on time 71% of the time, versus 76% across the LGA–GSO route.

A bit behind the American Airlines network.

AA 4577 arrived on time 71% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon83%(42 flights)
  • Tue71%(48 flights)
  • Wed79%(42 flights)
  • Thu67%(43 flights)
  • Fri68%(44 flights)
  • Sat73%(11 flights)
  • Sun59%(46 flights)
On-time by departure window
  • 12–3 PM—(9 flights)
  • 3–6 PM58%(12 flights)
  • 6–9 PM73%(130 flights)
  • 9 PM–12 AM70%(125 flights)
On-time trend by month
63%
May

Jun 64% → May 63% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%25
July 202563%19
August 202584%25
September 202584%25
October 202576%25
November 202557%23
December 202562%21
January 202678%23
February 202677%22
March 202658%19
April 202680%25
May 202663%24
Departures on time
73%
Diverted
0%
Flights flown
276
Months covered
12

Same route, other flights

Keep nerding

Based on 316 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.