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Flight Reliability

UA 1381 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1381 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

78%
Arrive within 15 minutes
6 min
Average arrival delay
1.2%
Cancelled
7 min early
Median arrival delay

Based on 641 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(94 flights)
  • Tue83%(99 flights)
  • Wed82%(98 flights)
  • Thu76%(99 flights)
  • Fri76%(98 flights)
  • Sat77%(47 flights)
  • Sun81%(97 flights)
On-time by departure window
  • 6–9 AM90%(162 flights)
  • 9 AM–12 PM79%(28 flights)
  • 12–3 PM82%(259 flights)
  • 3–6 PM—(2 flights)
  • 6–9 PM62%(181 flights)
On-time trend by month
72%
May

Jun 54% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202554%26
July 202541%29
August 202574%58
September 202590%30
October 202588%43
November 202576%80
December 202588%33
January 202680%59
February 202696%54
March 202676%75
April 202690%60
May 202672%85
Departures on time
77%
Diverted
0.2%
Flights flown
632
Months covered
12

Keep nerding

Based on 641 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.