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Flight Reliability

UA 1077 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1077 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

91%
Arrive within 15 minutes
8 min early
Average arrival delay
1.6%
Cancelled
15 min early
Median arrival delay

Based on 437 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(66 flights)
  • Tue94%(67 flights)
  • Wed97%(64 flights)
  • Thu91%(64 flights)
  • Fri89%(64 flights)
  • Sat83%(41 flights)
  • Sun95%(64 flights)
On-time by departure window
  • 6–9 AM94%(303 flights)
  • 9 AM–12 PM86%(120 flights)
  • 12–3 PM—(7 flights)
On-time trend by month
81%
May

Jun 97% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202590%30
August 2025100%29
September 202596%26
October 202597%33
November 202591%54
December 202586%50
January 202693%53
February 202694%33
March 202684%31
April 202690%30
May 202681%31
Departures on time
93%
Diverted
0%
Flights flown
430
Months covered
12

Keep nerding

Based on 437 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.