Flight number record
F9 2350
Frontier Airlines · Las Vegas to Denver
- Route
- LAS → DEN
- Departs
- 06:00
- Flights
- 321
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 2350, check with Frontier Airlines.
F9 2350 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 321 flights, with a median arrival 11 minutes early.
Set against the rest of the country, F9 2350's record is 11 points better than the US average of 77.3%. That gap is worth roughly 111 fewer late arrivals for every thousand flights.
Key figures
On time
88.4%
Arrivals under 15 minutes late, of 318 completed flights
Avg delay
103 min
Across delayed arrivals only, not all flights
Cancelled
0.93%
National rate is 1.89%
1 hour+ late
4.1%
National rate is 8.3%
These figures cover 321 flights between September 2025 and August 2026. The median arrival is 11 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When F9 2350 flies
F9 2350 flies LAS to DEN without a single fixed slot. Its most common scheduled departure was 06:00, used on 188 of 321 flights, with 06:30 (42 flights) next.
- Departs 06:00188 flights58.6%
- Departs 06:3042 flights13.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 2350 runs level with that at 88.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
F9 2350 next to LAS to DEN
Every carrier on LAS to DEN combined arrived on time 76.5% of the time across 7,140 flights, so F9 2350 is 12 points ahead of it. Frontier flew 1,620 flights on the same city pair under all its flight numbers, including this one, and those ran 76.5% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight beats by 16 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 2350thin sample | 321 | 88.4% | 103 min | 0.93% | A+ |
| All Frontier Airlines on LAS–DEN | 1,620 | 76.5% | 96 min | 1.17% | B |
| All carriers on LAS–DEN | 7,140 | 76.5% | 69 min | 0.83% | B+ |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 2350 quarter by quarter
F9 2350 did not run the same all year. Its best quarter was Apr–Jun 2026 at 93.6% on time and its weakest Oct–Dec 2025 at 83.1%, a swing of 11 points on roughly 80 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202523 flights—
- Oct–Dec 202579 flights83.1%
- Jan–Mar 202679 flights91.1%
- Apr–Jun 202679 flights93.6%
- Jul–Sep 202661 flights90.2%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, F9 2350 did best on Wednesday at 100.0% on time and worst on Monday at 77.4%. Each day rests on about 46 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 2350 runs when it is late
F9 2350 often beats the schedule: 131 of 318 completed flights, 41%, arrived 15 minutes or more early. The 37 late arrivals split 16 under half an hour, 8 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early131 flights41.2%
- Within 15 min150 flights47.2%
- 15–29 min late16 flights5.0%
- 30–59 min late8 flights2.5%
- 1–2 hours late9 flights2.8%
- 2+ hours late4 flights1.3%
Scale runs 0% to 100%.
Share of 318 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 25 departures that left 15 minutes late or more, only 2 made it up before arrival. 14 flights left on time and still arrived late.
The worst days
Worst days for F9 2350
The latest arrival of the period was on 20 April 2026, 16 hours 51 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 April 2026 | 16 hours 51 minutes | Late-arriving aircraft |
| 19 January 2026 | 13 hours 54 minutes | Late-arriving aircraft |
| 1 March 2026 | 5 hours 30 minutes | Late-arriving aircraft |
| 9 August 2026 | 2 hours 44 minutes | Carrier |
| 27 December 2025 | 1 hour 56 minutes | Late-arriving aircraft |
Delay causes
Why F9 2350 runs late
Late-arriving aircraft accounts for 64% of the 3,801 delay minutes carriers reported here, and the remaining four split what is left.
- 64%Late-arriving aircraft
- 21%Carrier
- 15%National Airspace System
64% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,801 reported delay minutes here, that single category outweighs weather by 64 to one. The split is drawn from 3,801 delay minutes reported on F9 2350.
Cancellations sit at 0.93% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.1% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 628 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 321 flights under F9 2350 in the data flew LAS to DEN. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 321 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking F9 2350
For a booking, F9 2350 has one of the better records a US domestic flight can show: 88.4% on time and 0.93% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- LAS to DEN, every carrier and departure
- DEN to LAS, the return direction
- United Airlines 596 on the same route97.8%
- Frontier Airlines 1994 on the same route77.4%
- United Airlines 2108 on the same route70.1%
- Frontier Airlines 4612 on the same route72.3%
- Frontier Airlines 3540 on the same route63.0%
- Harry Reid International (LAS) delay statistics
- Denver International (DEN) delay statistics
- Frontier Airlines on-time record
- Every Frontier Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Frontier Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.