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Flight Reliability

F9 1596 · Frontier Airlines

Chicago → Atlanta (ORD–ATL)

70
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
9 min
Average arrival delay
2.7%
Cancelled
3 min early
Median arrival delay

Based on 335 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 1596 departing between 12–3 PM arrived on time 90% of the time, versus 72% between 3–6 AM.

Sunday scaries are real for this one.

F9 1596 arrived on time 80% of the time on Thursdays and just 65% on Sundays. That gap is worth planning around.

Recent months have been rougher.

F9 1596 arrived on time 63% of the time over the last three months in the data, compared with 74% in the three months before that.

The breakdown

On-time by weekday
  • Mon76%(50 flights)
  • Tue74%(43 flights)
  • Wed79%(38 flights)
  • Thu80%(51 flights)
  • Fri78%(49 flights)
  • Sat67%(46 flights)
  • Sun65%(48 flights)
On-time by departure window
  • 3–6 AM72%(201 flights)
  • 6–9 AM77%(86 flights)
  • 9 AM–12 PM81%(26 flights)
  • 12–3 PM90%(10 flights)
  • 3–6 PM—(2 flights)
On-time trend by month
74%
May

Jun 58% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%26
July 202583%29
August 202583%30
September 202595%19
October 202591%22
November 202581%26
December 202564%28
January 202668%28
February 202689%28
March 202655%31
April 202659%27
May 202674%31
Departures on time
86%
Diverted
0.3%
Flights flown
325
Months covered
12

Same route, other flights

Keep nerding

Based on 335 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.