Skip to content
WanderNerd
Check a flight

Flight Reliability

AA 4642 · American Airlines

Columbus → Boston (CMH–BOS)

93
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
5 min early
Average arrival delay
1.7%
Cancelled
11 min early
Median arrival delay

Based on 354 historical flights. Data through May 2026.

What the data says

Skip Monday if you can.

AA 4642 arrived on time 98% of the time on Thursdays. On Mondays: 88%.

Better than the CMH–BOS route average.

AA 4642 arrived on time 93% of the time, versus 82% across the CMH–BOS route.

Well ahead of the American Airlines network.

AA 4642 arrived on time 93% of the time, versus 77% across the American Airlines network.

Ticking up lately.

AA 4642 arrived on time 96% of the time over the last three months in the data, compared with 90% in the three months before that.

The breakdown

On-time by weekday
  • Mon88%(49 flights)
  • Tue92%(51 flights)
  • Wed92%(52 flights)
  • Thu98%(50 flights)
  • Fri94%(51 flights)
  • Sat93%(43 flights)
  • Sun92%(51 flights)
On-time trend by month
100%
May

Jun 86% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%28
July 202590%31
August 202593%27
September 202593%30
October 2025100%31
November 202593%29
December 202587%30
January 202684%25
February 2026100%25
March 202694%31
April 202693%30
May 2026100%30
Departures on time
93%
Diverted
0.3%
Flights flown
347
Months covered
12

Same route, other flights

Keep nerding

Based on 354 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.