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Flight Reliability

UA 1383 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1383 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 early
Average arrival delay
0.8%
Cancelled
10 min early
Median arrival delay

Based on 933 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(131 flights)
  • Tue93%(134 flights)
  • Wed86%(132 flights)
  • Thu80%(129 flights)
  • Fri86%(132 flights)
  • Sat84%(130 flights)
  • Sun77%(134 flights)
On-time by departure window
  • 6–9 AM93%(336 flights)
  • 9 AM–12 PM93%(361 flights)
  • 12–3 PM59%(225 flights)
On-time trend by month
69%
May

Jun 87% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%82
July 202590%60
August 202592%61
September 202592%66
October 202583%93
November 202582%88
December 202590%93
January 202687%91
February 202688%65
March 202695%41
April 202674%90
May 202669%92
Departures on time
89%
Diverted
0.4%
Flights flown
922
Months covered
12

Keep nerding

Based on 933 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.