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Flight Reliability

UA 1777 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1777 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
11 min
Average arrival delay
2.4%
Cancelled
6 min early
Median arrival delay

Based on 499 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(69 flights)
  • Tue71%(69 flights)
  • Wed79%(72 flights)
  • Thu73%(69 flights)
  • Fri77%(69 flights)
  • Sat71%(70 flights)
  • Sun78%(69 flights)
On-time by departure window
  • 12–3 AM—(2 flights)
  • 6–9 AM77%(425 flights)
  • 12–3 PM63%(46 flights)
  • 3–6 PM43%(14 flights)
On-time trend by month
58%
May

Jun 83% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%53
July 202583%60
August 202585%13
September 202590%30
October 202575%61
November 202577%57
December 202547%32
January 202679%29
February 202673%26
March 202670%33
April 202671%31
May 202658%62
Departures on time
79%
Diverted
0%
Flights flown
487
Months covered
12

Keep nerding

Based on 499 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.