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WanderNerd

Flight Reliability

UA 5737 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5737 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

57%
Arrive within 15 minutes
33 min
Average arrival delay
0.9%
Cancelled
10 min
Median arrival delay

Based on 352 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon59%(49 flights)
  • Tue67%(52 flights)
  • Wed52%(52 flights)
  • Thu61%(51 flights)
  • Fri46%(44 flights)
  • Sat64%(47 flights)
  • Sun47%(53 flights)
On-time by departure window
  • 9 AM–12 PM56%(265 flights)
  • 12–3 PM47%(19 flights)
  • 9 PM–12 AM61%(64 flights)
On-time trend by month
32%
May

Jun 52% → May 32% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%25
July 202568%25
August 202570%27
September 202573%30
October 202552%31
November 202557%30
December 202545%29
January 202674%31
February 202654%28
March 202674%31
April 202630%30
May 202632%31
Departures on time
57%
Diverted
0.3%
Flights flown
348
Months covered
12

Based on 352 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.