Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 1799 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1799 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

81%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
8 min early
Median arrival delay

Based on 769 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(108 flights)
  • Tue78%(106 flights)
  • Wed83%(106 flights)
  • Thu82%(111 flights)
  • Fri82%(112 flights)
  • Sat82%(106 flights)
  • Sun77%(114 flights)
On-time by departure window
  • 6–9 AM92%(64 flights)
  • 9 AM–12 PM89%(363 flights)
  • 12–3 PM60%(207 flights)
  • 3–6 PM78%(18 flights)
  • 6–9 PM87%(111 flights)
On-time trend by month
64%
May

Jun 73% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202594%31
August 202586%57
September 202597%67
October 202584%92
November 202571%86
December 202589%63
January 202680%35
February 202680%59
March 202693%89
April 202665%66
May 202664%88
Departures on time
85%
Diverted
0.3%
Flights flown
763
Months covered
12

Keep nerding

Based on 769 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.