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Flight Reliability

UA 1303 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1303 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

74%
Arrive within 15 minutes
13 min
Average arrival delay
0%
Cancelled
1 min early
Median arrival delay

Based on 500 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(73 flights)
  • Tue75%(72 flights)
  • Wed76%(71 flights)
  • Thu76%(71 flights)
  • Fri71%(72 flights)
  • Sat79%(68 flights)
  • Sun68%(72 flights)
On-time by departure window
  • 3–6 PM76%(142 flights)
  • 6–9 PM72%(340 flights)
  • 9 PM–12 AM88%(17 flights)
On-time trend by month
71%
May

Jun 50% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%30
July 202536%31
August 202546%44
September 202575%36
October 202578%37
November 202597%58
December 202581%32
January 202690%31
February 202675%28
March 202674%50
April 202690%60
May 202671%62
Departures on time
73%
Diverted
0.2%
Flights flown
499
Months covered
12

Keep nerding

Based on 500 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.