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Flight Reliability

AA 1771 · American Airlines

Dallas–Fort Worth → Las Vegas (DFW–LAS)99% of its flights flew this route. The rest (PHL–SFO) are included in these numbers.

36
Bring Snacks
WanderNerd Reliability Score
57%
Arrive within 15 minutes
29 min
Average arrival delay
4.5%
Cancelled
8 min
Median arrival delay

Based on 335 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

AA 1771 departing between 12–3 PM arrived on time 75% of the time, versus 55% between 6–9 PM.

Friday is doing you no favors.

AA 1771 arrived on time 71% of the time on Wednesdays and just 42% on Fridays. That gap is worth planning around.

Lagging the DFW–LAS route.

AA 1771 arrived on time 57% of the time, versus 70% across the DFW–LAS route.

Well behind the American Airlines network.

AA 1771 arrived on time 57% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon57%(47 flights)
  • Tue69%(45 flights)
  • Wed71%(44 flights)
  • Thu52%(48 flights)
  • Fri42%(45 flights)
  • Sat63%(41 flights)
  • Sun47%(49 flights)
On-time by departure window
  • 12–3 PM75%(20 flights)
  • 3–6 PM—(2 flights)
  • 6–9 PM55%(289 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
65%
May

Jun 39% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202539%28
July 202539%31
August 202528%29
October 202550%26
November 202558%26
December 202577%31
January 202664%25
February 202671%28
March 202677%31
April 202666%29
May 202665%26
Departures on time
53%
Diverted
0.3%
Flights flown
319
Months covered
12

Same route, other flights

Keep nerding

Based on 335 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.