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Flight Reliability

F9 1105 · Frontier Airlines

Las Vegas → Portland (LAS–PDX)

78
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
5 min
Average arrival delay
1.9%
Cancelled
6 min early
Median arrival delay

Based on 104 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

F9 1105 departing between 6–9 AM arrived on time 93% of the time, versus 42% between 9 AM–12 PM.

Sunday scaries are real for this one.

F9 1105 arrived on time 91% of the time on Fridays and just 73% on Sundays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 1105 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon77%(22 flights)
  • Tue—(3 flights)
  • Wed—(1 flights)
  • Thu79%(19 flights)
  • Fri91%(22 flights)
  • Sat—(2 flights)
  • Sun73%(33 flights)
On-time by departure window
  • 6–9 AM93%(53 flights)
  • 9 AM–12 PM42%(19 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM76%(21 flights)
  • 6–9 PM—(4 flights)
On-time trend by month
89%
May

Dec 54% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202554%13
January 202693%14
February 2026100%11
March 202692%12
April 202669%13
May 202689%18
Departures on time
75%
Diverted
0%
Flights flown
102
Months covered
10

Same route, other flights

Keep nerding

Based on 104 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.