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Flight Reliability

UA 5337 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5337 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

73%
Arrive within 15 minutes
16 min
Average arrival delay
3.1%
Cancelled
1 min early
Median arrival delay

Based on 327 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(43 flights)
  • Tue75%(47 flights)
  • Wed76%(46 flights)
  • Thu66%(47 flights)
  • Fri72%(47 flights)
  • Sat74%(39 flights)
  • Sun72%(47 flights)
On-time by departure window
  • 9 AM–12 PM—(3 flights)
  • 12–3 PM69%(216 flights)
  • 6–9 PM84%(77 flights)
  • 9 PM–12 AM75%(20 flights)
On-time trend by month
70%
May

Jun 46% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%28
July 202557%28
August 202571%31
September 202583%30
October 202574%31
November 202589%27
December 202554%28
January 202693%27
February 202679%28
March 202685%27
May 202670%30
Departures on time
79%
Diverted
0.3%
Flights flown
316
Months covered
12

Keep nerding

Based on 327 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.