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Flight Reliability

UA 3409 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3409 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

89%
Arrive within 15 minutes
3 min early
Average arrival delay
2.3%
Cancelled
15 min early
Median arrival delay

Based on 259 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(33 flights)
  • Tue88%(34 flights)
  • Wed97%(35 flights)
  • Thu89%(35 flights)
  • Fri88%(40 flights)
  • Sat85%(40 flights)
  • Sun83%(36 flights)
On-time by departure window
  • 6–9 AM85%(82 flights)
  • 9 AM–12 PM91%(92 flights)
  • 12–3 PM87%(53 flights)
  • 3–6 PM100%(20 flights)
  • 6–9 PM—(6 flights)
On-time trend by month
100%
May

Aug 69% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202569%13
September 202597%30
October 202594%31
November 202576%29
December 202583%30
February 202688%17
March 202687%30
April 202693%30
May 2026100%30
Departures on time
91%
Diverted
0%
Flights flown
253
Months covered
11

Keep nerding

Based on 259 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.