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Flight Reliability

F9 1489 · Frontier Airlines

Houston → Las Vegas (IAH–LAS)

68
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
2 min
Average arrival delay
2.3%
Cancelled
9 min early
Median arrival delay

Based on 87 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 1489 departing between 12–3 PM arrived on time 91% of the time, versus 69% between 3–6 PM.

Sunday scaries are real for this one.

F9 1489 arrived on time 90% of the time on Mondays and just 64% on Sundays. That gap is worth planning around.

A bit behind the IAH–LAS route.

F9 1489 arrived on time 78% of the time, versus 83% across the IAH–LAS route.

A bit ahead of the Frontier Airlines network.

F9 1489 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon90%(10 flights)
  • Tue—(2 flights)
  • Wed—(2 flights)
  • Thu87%(15 flights)
  • Fri85%(13 flights)
  • Sat75%(16 flights)
  • Sun64%(25 flights)
On-time by departure window
  • 12–3 PM91%(21 flights)
  • 3–6 PM69%(36 flights)
  • 6–9 PM—(5 flights)
  • 9 PM–12 AM81%(21 flights)
On-time trend by month
100%
Feb

Jun 50% → Feb 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%10
July 202585%13
December 202593%14
January 202680%10
February 2026100%10
Departures on time
71%
Diverted
2.3%
Flights flown
83
Months covered
11

Same route, other flights

Keep nerding

Based on 87 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.