Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 1451 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1451 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

87%
Arrive within 15 minutes
1 min early
Average arrival delay
0.3%
Cancelled
9 min early
Median arrival delay

Based on 398 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(57 flights)
  • Tue97%(58 flights)
  • Wed91%(58 flights)
  • Thu82%(55 flights)
  • Fri84%(57 flights)
  • Sat81%(53 flights)
  • Sun85%(58 flights)
On-time by departure window
  • 3–6 AM97%(32 flights)
  • 6–9 AM85%(58 flights)
  • 9 AM–12 PM87%(262 flights)
  • 3–6 PM72%(25 flights)
  • 6–9 PM95%(19 flights)
On-time trend by month
93%
May

Aug 73% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202573%26
September 202585%54
October 202577%31
November 202587%53
December 202575%32
January 202690%31
February 202693%45
March 202687%37
April 202698%58
May 202693%29
Departures on time
88%
Diverted
0.3%
Flights flown
396
Months covered
10

Keep nerding

Based on 398 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.