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Flight Reliability

UA 1437 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1437 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

77%
Arrive within 15 minutes
9 min
Average arrival delay
0.8%
Cancelled
6 min early
Median arrival delay

Based on 367 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(54 flights)
  • Tue78%(49 flights)
  • Wed79%(47 flights)
  • Thu83%(54 flights)
  • Fri84%(55 flights)
  • Sat69%(49 flights)
  • Sun64%(55 flights)
On-time by departure window
  • 6–9 AM95%(118 flights)
  • 9 AM–12 PM—(5 flights)
  • 12–3 PM79%(70 flights)
  • 3–6 PM66%(140 flights)
  • 6–9 PM57%(30 flights)
On-time trend by month
100%
May

Aug 85% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202585%13
September 202572%36
October 202581%62
November 202553%55
December 202567%60
January 202677%22
February 202690%20
March 202682%34
April 202693%30
May 2026100%31
Departures on time
80%
Diverted
0.3%
Flights flown
363
Months covered
10

Keep nerding

Based on 367 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.