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WanderNerd

Flight Reliability

UA 5677 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5677 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

88%
Arrive within 15 minutes
2 min early
Average arrival delay
2.6%
Cancelled
8 min early
Median arrival delay

Based on 228 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(27 flights)
  • Tue83%(24 flights)
  • Wed92%(39 flights)
  • Thu93%(27 flights)
  • Fri89%(37 flights)
  • Sat92%(26 flights)
  • Sun83%(41 flights)
On-time by departure window
  • 6–9 AM93%(89 flights)
  • 9 AM–12 PM92%(13 flights)
  • 12–3 PM89%(53 flights)
  • 3–6 PM(4 flights)
  • 6–9 PM79%(62 flights)
On-time trend by month
89%
May

Jun 94% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%16
July 202597%31
August 202590%31
September 202592%13
October 202593%15
November 202590%19
January 202692%26
February 202685%13
April 202655%22
May 202689%28
Departures on time
90%
Diverted
0.4%
Flights flown
221
Months covered
12

Based on 228 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.