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Flight Reliability

F9 4075 · Frontier Airlines

Atlanta → Houston (ATL–IAH)

53
A Little Dicey
WanderNerd Reliability Score
60%
Arrive within 15 minutes
29 min
Average arrival delay
1.2%
Cancelled
2 min
Median arrival delay

Based on 330 historical flights. Data through May 2026.

What the data says

6–9 PM has a slight edge.

Departures between 6–9 PM arrived on time 63% of the time, against 59% between 9 PM–12 AM.

Friday is doing you no favors.

F9 4075 arrived on time 70% of the time on Wednesdays and just 53% on Fridays. That gap is worth planning around.

Well behind the ATL–IAH route.

F9 4075 arrived on time 60% of the time, versus 76% across the ATL–IAH route.

Lagging the Frontier Airlines network.

F9 4075 arrived on time 60% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon57%(51 flights)
  • Tue58%(33 flights)
  • Wed70%(43 flights)
  • Thu67%(49 flights)
  • Fri53%(51 flights)
  • Sat59%(49 flights)
  • Sun56%(50 flights)
On-time by departure window
  • 6–9 PM63%(79 flights)
  • 9 PM–12 AM59%(247 flights)
On-time trend by month
58%
May

Jun 20% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202520%25
July 202542%31
August 202561%28
September 202582%22
October 202555%22
November 202550%24
December 202574%31
January 202659%27
February 202685%27
March 202653%30
April 202679%28
May 202658%31
Departures on time
50%
Diverted
0%
Flights flown
326
Months covered
12

Same route, other flights

Keep nerding

Based on 330 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.