Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 6203 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 6203 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
0 min
Average arrival delay
0.9%
Cancelled
12 min early
Median arrival delay

Based on 213 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(31 flights)
  • Tue84%(37 flights)
  • Wed100%(26 flights)
  • Thu81%(36 flights)
  • Fri77%(30 flights)
  • Sat77%(22 flights)
  • Sun86%(29 flights)
On-time by departure window
  • 9 AM–12 PM91%(87 flights)
  • 12–3 PM80%(105 flights)
  • 3–6 PM68%(19 flights)
On-time trend by month
86%
May

Aug 100% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 2025100%13
September 202597%29
October 202581%26
November 202575%24
December 202582%27
March 202695%20
April 202667%24
May 202686%28
Departures on time
83%
Diverted
0%
Flights flown
211
Months covered
11

Keep nerding

Based on 213 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.