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Flight Reliability

UA 2277 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2277 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
Average arrival delay
0.6%
Cancelled
8 min early
Median arrival delay

Based on 485 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(70 flights)
  • Tue94%(68 flights)
  • Wed96%(66 flights)
  • Thu89%(66 flights)
  • Fri83%(69 flights)
  • Sat85%(73 flights)
  • Sun84%(67 flights)
On-time by departure window
  • 12–3 AM100%(15 flights)
  • 6–9 AM89%(98 flights)
  • 12–3 PM89%(349 flights)
  • 3–6 PM47%(17 flights)
On-time trend by month
94%
May

Jun 94% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%34
July 202586%59
August 202566%35
September 202590%30
October 202590%31
November 202597%30
December 202587%31
January 202687%30
February 202689%28
March 202677%34
April 202692%75
May 202694%62
Departures on time
87%
Diverted
0.6%
Flights flown
479
Months covered
12

Keep nerding

Based on 485 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.