Skip to content
WanderNerd

Flight Reliability

UA 348 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 348 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

86%
Arrive within 15 minutes
1 min early
Average arrival delay
1.3%
Cancelled
10 min early
Median arrival delay

Based on 318 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(46 flights)
  • Tue84%(37 flights)
  • Wed76%(42 flights)
  • Thu89%(47 flights)
  • Fri84%(50 flights)
  • Sat78%(40 flights)
  • Sun94%(49 flights)
On-time by departure window
  • 6–9 AM94%(139 flights)
  • 9 AM–12 PM77%(87 flights)
  • 12–3 PM85%(34 flights)
  • 3–6 PM76%(21 flights)
  • 6–9 PM80%(15 flights)
  • 9 PM–12 AM80%(15 flights)
On-time trend by month
90%
May

Oct 89% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
October 202589%56
November 202589%44
December 202581%31
January 202696%27
February 202682%22
March 202672%54
April 202693%30
May 202690%41
Departures on time
87%
Diverted
0.9%
Flights flown
311
Months covered
9

Based on 318 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.