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Flight Reliability

AA 4631 · American Airlines

Indianapolis → New York (IND–JFK)

88
Pretty Reliable
WanderNerd Reliability Score
92%
Arrive within 15 minutes
5 min early
Average arrival delay
2.6%
Cancelled
12 min early
Median arrival delay

Based on 351 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

AA 4631 departing between 6–9 AM arrived on time 97% of the time, versus 85% between 3–6 AM.

Skip Wednesday if you can.

AA 4631 arrived on time 96% of the time on Fridays. On Wednesdays: 86%.

Better than the IND–JFK route average.

AA 4631 arrived on time 92% of the time, versus 83% across the IND–JFK route.

Well ahead of the American Airlines network.

AA 4631 arrived on time 92% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon87%(47 flights)
  • Tue94%(48 flights)
  • Wed86%(50 flights)
  • Thu90%(48 flights)
  • Fri96%(49 flights)
  • Sat94%(51 flights)
  • Sun96%(48 flights)
On-time by departure window
  • 3–6 AM85%(82 flights)
  • 6–9 AM97%(172 flights)
  • 9 AM–12 PM87%(52 flights)
  • 12–3 PM91%(35 flights)
On-time trend by month
84%
May

Jun 93% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%28
July 202597%30
August 202597%31
September 2025100%30
October 2025100%31
November 202589%28
December 202582%27
January 202686%28
February 202692%25
March 202689%28
April 202692%24
May 202684%31
Departures on time
93%
Diverted
0.3%
Flights flown
341
Months covered
12

Same route, other flights

Keep nerding

Based on 351 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.