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Flight Reliability

UA 307 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 307 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

83%
Arrive within 15 minutes
5 min
Average arrival delay
1.9%
Cancelled
4 min early
Median arrival delay

Based on 530 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(77 flights)
  • Tue89%(78 flights)
  • Wed86%(79 flights)
  • Thu90%(77 flights)
  • Fri76%(79 flights)
  • Sat86%(55 flights)
  • Sun75%(75 flights)
On-time by departure window
  • 6–9 AM81%(222 flights)
  • 9 AM–12 PM84%(298 flights)
On-time trend by month
93%
May

Jun 83% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202594%31
August 202590%31
September 202589%35
October 202577%52
November 202564%28
December 202565%46
January 202692%51
February 202684%51
March 202686%55
April 202676%53
May 202693%57
Departures on time
88%
Diverted
0%
Flights flown
520
Months covered
12

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Based on 530 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.