Flight number record
F9 2349
Frontier Airlines · Denver to Las Vegas
- Route
- DEN → LAS
- Departs
- 16:25
- Flights
- 300
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 2349, check with Frontier Airlines.
F9 2349 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 300 flights, with a median arrival 5 minutes early.
The national on-time rate over the same period is 77.3%, so F9 2349 runs 7 points behind the country as a whole. Across a thousand flights that is about 74 extra late arrivals.
Key figures
On time
69.9%
Arrivals under 15 minutes late, of 296 completed flights
Avg delay
83 min
Across delayed arrivals only, not all flights
Cancelled
1.33%
National rate is 1.89%
1 hour+ late
13.2%
National rate is 8.3%
These figures cover 300 flights between September 2025 and August 2026. Beyond the headline rate, 13.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 2349 flies
F9 2349 flies DEN to LAS without a single fixed slot. Its most common scheduled departure was 16:25, used on 41 of 300 flights.
- Departs 16:2541 flights13.7%
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 16:25 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and F9 2349 runs 2 points worse at 69.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
F9 2349 next to DEN to LAS
Every carrier on DEN to LAS combined arrived on time 75.5% of the time across 7,168 flights, so F9 2349 is 6 points behind it. Frontier flew 1,626 flights on the same city pair under all its flight numbers, including this one, and those ran 75.8% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 2349thin sample | 300 | 69.9% | 83 min | 1.33% | C |
| All Frontier Airlines on DEN–LAS | 1,626 | 75.8% | 78 min | 1.05% | B |
| All carriers on DEN–LAS | 7,168 | 75.5% | 64 min | 0.64% | B+ |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 2349 quarter by quarter
F9 2349 did not run the same all year. Its best quarter was Jan–Mar 2026 at 75.3% on time and its weakest Jul–Sep 2026 at 57.7%, a swing of 18 points on roughly 75 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 202521 flights—
- Oct–Dec 202575 flights74.7%
- Jan–Mar 202673 flights75.3%
- Apr–Jun 202677 flights65.3%
- Jul–Sep 202654 flights57.7%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, F9 2349 ranged from 66.0% on Friday to 77.8% on Saturday. With about 43 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late F9 2349 runs when it is late
F9 2349 often beats the schedule: 98 of 296 completed flights, 33%, arrived 15 minutes or more early. The 89 late arrivals split 28 under half an hour, 22 between 30 and 60 minutes, and 39 an hour or more.
- 15+ min early98 flights33.1%
- Within 15 min109 flights36.8%
- 15–29 min late28 flights9.5%
- 30–59 min late22 flights7.4%
- 1–2 hours late24 flights8.1%
- 2+ hours late15 flights5.1%
Scale runs 0% to 100%.
Share of 296 completed flights by arrival against schedule.
12 of 85 late departures made up the time and arrived on time, 14% of them. In the other direction, 16 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at LAS.
The worst days
Worst days for F9 2349
The latest arrival of the period was on 13 November 2025, 9 hours 3 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 November 2025 | 9 hours 3 minutes | Late-arriving aircraft |
| 19 October 2025 | 8 hours 6 minutes | Late-arriving aircraft |
| 12 November 2025 | 7 hours 18 minutes | National Airspace System |
| 19 September 2025 | 6 hours 28 minutes | Late-arriving aircraft |
| 26 September 2025 | 4 hours 36 minutes | National Airspace System |
Delay causes
Why F9 2349 runs late
Late-arriving aircraft accounts for 47% of the 7,402 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 31%National Airspace System
- 14%Carrier
- 8%Extreme weather
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,402 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 7,402 delay minutes reported on F9 2349.
Cancellations sit at 1.33% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
13.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
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 300 flights under F9 2349 in the data flew DEN to LAS. 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. 300 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 2349
For a booking, F9 2349 is a flight to put a long connection behind. 13.2% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- DEN to LAS, every carrier and departure
- LAS to DEN, the return direction
- United Airlines 2316 on the same route94.2%
- United Airlines 655 on the same route66.8%
- Frontier Airlines 777 on the same route72.1%
- Frontier Airlines 1993 on the same route80.3%
- United Airlines 526 on the same route81.1%
- Frontier Airlines 2015 on the same route88.4%
- Denver International (DEN) delay statistics
- Harry Reid International (LAS) 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.