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Flight Reliability

UA 450 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 450 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

75%
Arrive within 15 minutes
7 min
Average arrival delay
0.9%
Cancelled
5 min early
Median arrival delay

Based on 444 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(62 flights)
  • Tue75%(63 flights)
  • Wed64%(63 flights)
  • Thu77%(62 flights)
  • Fri84%(61 flights)
  • Sat79%(62 flights)
  • Sun77%(64 flights)
On-time by departure window
  • 6–9 AM50%(58 flights)
  • 9 AM–12 PM81%(16 flights)
  • 12–3 PM79%(97 flights)
  • 3–6 PM77%(185 flights)
  • 6–9 PM82%(81 flights)
On-time trend by month
73%
May

Jun 79% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202566%29
August 202587%31
September 202584%25
October 202587%30
November 202572%29
December 202567%46
January 202691%56
February 202652%56
March 202663%35
April 202693%30
May 202673%41
Departures on time
84%
Diverted
0.7%
Flights flown
437
Months covered
12

Keep nerding

Based on 444 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.