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Flight Reliability

UA 3594 · United Airlines

Louisville → Newark (SDF–EWR)85% of its flights flew this route. The rest (EWR–ORF, EWR–CLE) are included in these numbers.

83
Pretty Reliable
WanderNerd Reliability Score
90%
Arrive within 15 minutes
7 min early
Average arrival delay
3.7%
Cancelled
14 min early
Median arrival delay

Based on 405 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 3594 departing between 9 AM–12 PM arrived on time 94% of the time, versus 79% between 3–6 PM.

Monday is the weak spot.

UA 3594 arrived on time 96% of the time on Thursdays. On Mondays: 82%.

A bit ahead of the SDF–EWR route.

UA 3594 arrived on time 90% of the time, versus 86% across the SDF–EWR route.

Better than the United Airlines network average.

UA 3594 arrived on time 90% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon82%(55 flights)
  • Tue89%(56 flights)
  • Wed96%(53 flights)
  • Thu96%(55 flights)
  • Fri91%(56 flights)
  • Sat91%(57 flights)
  • Sun86%(57 flights)
On-time by departure window
  • 6–9 AM90%(329 flights)
  • 9 AM–12 PM94%(46 flights)
  • 3–6 PM79%(14 flights)
On-time trend by month
96%
May

Jun 100% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202593%29
August 202594%31
September 2025100%30
October 2025100%31
November 202581%26
December 202569%26
January 202679%28
February 202692%25
March 202679%28
April 202691%55
May 202696%50
Departures on time
93%
Diverted
0.2%
Flights flown
389
Months covered
12

Same route, other flights

Keep nerding

Based on 405 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.