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Flight Reliability

F9 4418 · Frontier Airlines

El Paso → Denver (ELP–DEN)

86
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
8 min
Average arrival delay
0.6%
Cancelled
10 min early
Median arrival delay

Based on 323 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 86% of the time, against 79% between 12–3 PM.

Thursdays have been rough.

F9 4418 arrived on time 88% of the time on Wednesdays and just 67% on Thursdays. That gap is worth planning around.

Better than the Frontier Airlines network average.

F9 4418 arrived on time 80% of the time, versus 73% across the Frontier Airlines network.

Trending in the right direction.

F9 4418 arrived on time 87% of the time over the last three months in the data, compared with 77% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(51 flights)
  • Tue85%(26 flights)
  • Wed88%(41 flights)
  • Thu67%(52 flights)
  • Fri77%(48 flights)
  • Sat87%(52 flights)
  • Sun78%(51 flights)
On-time by departure window
  • 12–3 PM79%(237 flights)
  • 3–6 PM86%(21 flights)
  • 6–9 PM83%(63 flights)
On-time trend by month
77%
May

Jun 83% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%24
July 202576%25
August 202563%27
September 202584%25
October 202568%28
November 202593%30
December 202562%21
January 202689%28
February 202679%28
March 202687%30
April 202696%24
May 202677%31
Departures on time
79%
Diverted
0%
Flights flown
321
Months covered
12

Same route, other flights

Keep nerding

Based on 323 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.