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Flight Reliability

UA 4618 · United Airlines

GSO → Newark (GSO–EWR)87% of its flights flew this route. The rest (PHL–IAD, ORD–LEX) are included in these numbers.

78
Usually Fine
WanderNerd Reliability Score
86%
Arrive within 15 minutes
6 min
Average arrival delay
3.8%
Cancelled
11 min early
Median arrival delay

Based on 344 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 4618 departing between 6–9 AM arrived on time 89% of the time, versus 39% between 3–6 PM.

Sunday scaries are real for this one.

UA 4618 arrived on time 96% of the time on Mondays and just 79% on Sundays. That gap is worth planning around.

Better than the GSO–EWR route average.

UA 4618 arrived on time 86% of the time, versus 79% across the GSO–EWR route.

Better than the United Airlines network average.

UA 4618 arrived on time 86% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon96%(46 flights)
  • Tue87%(47 flights)
  • Wed89%(46 flights)
  • Thu90%(49 flights)
  • Fri81%(48 flights)
  • Sat83%(46 flights)
  • Sun79%(48 flights)
On-time by departure window
  • 6–9 AM89%(290 flights)
  • 9 AM–12 PM89%(18 flights)
  • 12–3 PM—(9 flights)
  • 3–6 PM39%(13 flights)
On-time trend by month
65%
May

Jun 97% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202590%29
August 202587%30
September 202586%29
October 202597%31
November 202590%29
December 202576%29
January 202696%28
February 202688%24
March 202687%30
May 202665%37
Departures on time
87%
Diverted
0.3%
Flights flown
330
Months covered
12

Same route, other flights

Keep nerding

Based on 344 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.