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Flight Reliability

F9 1403 · Frontier Airlines

Atlanta → Houston (ATL–IAH)

69
Usually Fine
WanderNerd Reliability Score
70%
Arrive within 15 minutes
16 min
Average arrival delay
1.3%
Cancelled
3 min early
Median arrival delay

Based on 318 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 1403 departing between 6–9 PM arrived on time 90% of the time, versus 58% between 12–3 PM.

Mondays have been rough.

F9 1403 arrived on time 88% of the time on Saturdays and just 54% on Mondays. That gap is worth planning around.

A bit behind the ATL–IAH route.

F9 1403 arrived on time 70% of the time, versus 76% across the ATL–IAH route.

A bit behind the Frontier Airlines network.

F9 1403 arrived on time 70% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon54%(48 flights)
  • Tue71%(44 flights)
  • Wed63%(35 flights)
  • Thu77%(51 flights)
  • Fri70%(50 flights)
  • Sat88%(34 flights)
  • Sun71%(51 flights)
On-time by departure window
  • 6–9 AM79%(19 flights)
  • 9 AM–12 PM—(4 flights)
  • 12–3 PM58%(92 flights)
  • 3–6 PM75%(188 flights)
  • 6–9 PM90%(10 flights)
On-time trend by month
77%
May

Jun 48% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%25
July 202544%27
August 202571%24
September 202576%29
October 202579%28
November 202575%20
December 202564%25
January 202665%23
February 202681%26
March 202676%29
April 202681%26
May 202677%31
Departures on time
68%
Diverted
0.3%
Flights flown
313
Months covered
12

Same route, other flights

Keep nerding

Based on 318 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.