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Flight Reliability

UA 3719 · United Airlines

Newark → St. Louis (EWR–STL)84% of its flights flew this route. The rest (SYR–EWR, DTW–ORD) are included in these numbers.

68
Usually Fine
WanderNerd Reliability Score
83%
Arrive within 15 minutes
0 min
Average arrival delay
5.9%
Cancelled
11 min early
Median arrival delay

Based on 306 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

UA 3719 departing between 12–3 PM arrived on time 85% of the time, versus 75% between 9 AM–12 PM.

Saturdays have been rough.

UA 3719 arrived on time 93% of the time on Wednesdays and just 75% on Saturdays. That gap is worth planning around.

A bit ahead of the United Airlines network.

UA 3719 arrived on time 83% of the time, versus 79% across the United Airlines network.

Keep a backup plan handy.

UA 3719 was cancelled 5.9% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon81%(43 flights)
  • Tue83%(40 flights)
  • Wed93%(42 flights)
  • Thu81%(41 flights)
  • Fri83%(47 flights)
  • Sat75%(36 flights)
  • Sun87%(39 flights)
On-time by departure window
  • 6–9 AM—(3 flights)
  • 9 AM–12 PM75%(12 flights)
  • 12–3 PM85%(132 flights)
  • 3–6 PM82%(129 flights)
  • 9 PM–12 AM83%(12 flights)
On-time trend by month
100%
May

Jun 53% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202553%15
July 202589%28
August 202576%46
September 202591%23
November 202596%23
December 202550%26
January 202689%27
February 202688%25
March 202692%24
April 202688%16
May 2026100%30
Departures on time
86%
Diverted
0%
Flights flown
288
Months covered
12

Same route, other flights

Keep nerding

Based on 306 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.