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Flight Reliability

AA 3771 · American Airlines

Washington → Key West (DCA–EYW)82% of its flights flew this route. The rest (ORD–PVD, PVD–ORD) are included in these numbers.

76
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
6 min
Average arrival delay
2.1%
Cancelled
4 min early
Median arrival delay

Based on 187 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

AA 3771 departing between 9 AM–12 PM arrived on time 92% of the time, versus 73% between 12–3 PM.

Skip Thursday if you can.

AA 3771 arrived on time 85% of the time on Wednesdays. On Thursdays: 72%.

A bit behind the DCA–EYW route.

AA 3771 arrived on time 77% of the time, versus 82% across the DCA–EYW route.

Trending in the right direction.

AA 3771 arrived on time 84% of the time over the last three months in the data, compared with 65% in the three months before that.

The breakdown

On-time by weekday
  • Mon72%(25 flights)
  • Tue81%(26 flights)
  • Wed85%(27 flights)
  • Thu72%(25 flights)
  • Fri76%(25 flights)
  • Sat74%(27 flights)
  • Sun75%(28 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM92%(24 flights)
  • 12–3 PM73%(149 flights)
  • 3–6 PM—(9 flights)
On-time trend by month
83%
May

Nov 64% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202564%28
December 202559%29
January 202672%29
February 202682%28
March 202687%30
May 202683%18
Departures on time
80%
Diverted
0%
Flights flown
183
Months covered
11

Same route, other flights

Keep nerding

Based on 187 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.