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Flight Reliability

UA 3699 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3699 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
8.3%
Cancelled
11 min early
Median arrival delay

Based on 277 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(35 flights)
  • Tue94%(36 flights)
  • Wed85%(39 flights)
  • Thu85%(40 flights)
  • Fri83%(40 flights)
  • Sat78%(27 flights)
  • Sun81%(37 flights)
On-time by departure window
  • 6–9 AM96%(45 flights)
  • 9 AM–12 PM100%(17 flights)
  • 12–3 PM91%(64 flights)
  • 3–6 PM82%(11 flights)
  • 6–9 PM82%(94 flights)
  • 9 PM–12 AM57%(23 flights)
On-time trend by month
89%
May

Jun 85% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%26
July 202563%19
August 202587%30
September 202593%29
October 2025100%24
January 202686%21
February 2026100%25
March 202680%25
April 202669%29
May 202689%26
Departures on time
87%
Diverted
0%
Flights flown
254
Months covered
10

Keep nerding

Based on 277 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.