Flight Reliability
F9 3191 · Frontier Airlines
Salt Lake City → Portland (SLC–PDX)
34
Bring Snacks
WanderNerd Reliability Score
- 61%
- Arrive within 15 minutes
- 34 min
- Average arrival delay
- 5.8%
- Cancelled
- 1 min early
- Median arrival delay
Based on 52 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
F9 3191 arrived on time 74% of the time on Fridays and just 44% on Mondays. That gap is worth planning around.
Well behind the SLC–PDX route.
F9 3191 arrived on time 61% of the time, versus 88% across the SLC–PDX route.
Lagging the Frontier Airlines network.
F9 3191 arrived on time 61% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon44%(23 flights)
- Tue—(1 flights)
- Wed—(0 flights)
- Thu—(0 flights)
- Fri74%(23 flights)
- Sat—(2 flights)
- Sun—(0 flights)
- 9 AM–12 PM—(8 flights)
- 12–3 PM—(3 flights)
- 6–9 PM58%(38 flights)
- Departures on time
- 71%
- Diverted
- 0%
- Flights flown
- 49
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 52 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.