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Flight Reliability

UA 1434 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1434 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

78%
Arrive within 15 minutes
8 min
Average arrival delay
0.6%
Cancelled
6 min early
Median arrival delay

Based on 727 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(103 flights)
  • Tue88%(96 flights)
  • Wed79%(99 flights)
  • Thu78%(105 flights)
  • Fri74%(104 flights)
  • Sat83%(106 flights)
  • Sun74%(107 flights)
On-time by departure window
  • 9 AM–12 PM92%(134 flights)
  • 12–3 PM81%(248 flights)
  • 3–6 PM69%(314 flights)
  • 6–9 PM92%(24 flights)
On-time trend by month
87%
May

Jun 67% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202574%31
August 202586%44
September 202590%59
October 202577%62
November 202567%57
December 202569%87
January 202668%40
February 202679%62
March 202686%93
April 202678%88
May 202687%67
Departures on time
80%
Diverted
0.4%
Flights flown
720
Months covered
12

Keep nerding

Based on 727 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.