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Flight Reliability

UA 329 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 329 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

81%
Arrive within 15 minutes
13 min
Average arrival delay
0.7%
Cancelled
5 min early
Median arrival delay

Based on 443 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(61 flights)
  • Tue85%(60 flights)
  • Wed80%(64 flights)
  • Thu85%(65 flights)
  • Fri75%(64 flights)
  • Sat79%(61 flights)
  • Sun84%(63 flights)
On-time by departure window
  • 6–9 AM94%(202 flights)
  • 12–3 PM—(3 flights)
  • 3–6 PM63%(164 flights)
  • 6–9 PM80%(51 flights)
  • 9 PM–12 AM94%(18 flights)
On-time trend by month
77%
May

Jun 100% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%29
July 202590%31
August 202597%30
September 202580%30
October 202589%37
November 202598%58
December 202578%32
January 202648%31
February 202676%38
March 202650%30
April 202670%30
May 202677%62
Departures on time
85%
Diverted
0.5%
Flights flown
438
Months covered
12

Keep nerding

Based on 443 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.