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Flight Reliability

AA 4598 · American Airlines

New York → Detroit (LGA–DTW)100% of its flights flew this route. The rest (LGA–CLE) are included in these numbers.

31
Bring Snacks
WanderNerd Reliability Score
70%
Arrive within 15 minutes
14 min
Average arrival delay
11.3%
Cancelled
6 min early
Median arrival delay

Based on 309 historical flights. Data through May 2026.

What the data says

6–9 PM has a slight edge.

Departures between 6–9 PM arrived on time 70% of the time, against 67% between 9 PM–12 AM.

Thursdays have been rough.

AA 4598 arrived on time 86% of the time on Tuesdays and just 56% on Thursdays. That gap is worth planning around.

Lagging the LGA–DTW route.

AA 4598 arrived on time 70% of the time, versus 78% across the LGA–DTW route.

A bit behind the American Airlines network.

AA 4598 arrived on time 70% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon75%(44 flights)
  • Tue86%(44 flights)
  • Wed64%(44 flights)
  • Thu56%(43 flights)
  • Fri72%(46 flights)
  • Sat—(8 flights)
  • Sun64%(45 flights)
On-time by departure window
  • 3–6 PM—(8 flights)
  • 6–9 PM70%(248 flights)
  • 9 PM–12 AM67%(18 flights)
On-time trend by month
79%
May

Jun 60% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%20
July 202573%15
August 202588%25
September 202579%29
October 202557%28
November 202575%24
December 202575%20
January 202655%20
February 202673%22
March 202657%21
April 202665%26
May 202679%24
Departures on time
73%
Diverted
0%
Flights flown
274
Months covered
12

Same route, other flights

Keep nerding

Based on 309 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.