Flight number record
F9 777
Frontier Airlines · Denver to Las Vegas
- Route
- DEN → LAS
- Departs
- 22:29
- Flights
- 357
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 777, check with Frontier Airlines.
F9 777 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 357 flights, with a median arrival 6 minutes early.
The national on-time rate over the same period is 77.3%, so F9 777 runs 5 points behind the country as a whole. Across a thousand flights that is about 52 extra late arrivals.
Key figures
On time
72.1%
Arrivals under 15 minutes late, of 355 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
0.56%
National rate is 1.89%
1 hour+ late
10.7%
National rate is 8.3%
These figures cover 357 flights between September 2025 and August 2026. Beyond the headline rate, 10.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 777 flies
F9 777 flies DEN to LAS without a single fixed slot. Its most common scheduled departure was 22:29, used on 238 of 357 flights, with 22:30 (39 flights) next.
- Departs 22:29238 flights66.7%
- Departs 22:3039 flights10.9%
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 22:29 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 777 runs 2 points better at 72.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
F9 777 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 777 is 3 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%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 777thin sample | 357 | 72.1% | 67 min | 0.56% | 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 777 quarter by quarter
F9 777 did not run the same all year. Its best quarter was Jul–Sep 2025 at 80.0% on time and its weakest Jul–Sep 2026 at 59.7%, a swing of 20 points on roughly 71 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 202530 flights80.0%
- Oct–Dec 202584 flights79.8%
- Jan–Mar 202690 flights78.4%
- Apr–Jun 202691 flights64.8%
- Jul–Sep 202662 flights59.7%
Scale runs 50% to 85%.
By weekday, F9 777 did best on Saturday at 86.5% on time and worst on Thursday at 58.8%. Each day rests on about 51 flights, so a gap of 28 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 777 runs when it is late
F9 777 often beats the schedule: 95 of 355 completed flights, 27%, arrived 15 minutes or more early. The 99 late arrivals split 33 under half an hour, 28 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early95 flights26.8%
- Within 15 min161 flights45.4%
- 15–29 min late33 flights9.3%
- 30–59 min late28 flights7.9%
- 1–2 hours late29 flights8.2%
- 2+ hours late9 flights2.5%
Scale runs 0% to 100%.
Share of 355 completed flights by arrival against schedule.
15 of 97 late departures made up the time and arrived on time, 15% of them. 17 flights left on time and still arrived late.
The worst days
Worst days for F9 777
The latest arrival of the period was on 27 October 2025, 7 hours 55 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across October, March, June and August, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 October 2025 | 7 hours 55 minutes | Carrier |
| 12 March 2026 | 7 hours 22 minutes | National Airspace System |
| 19 June 2026 | 4 hours 12 minutes | National Airspace System |
| 24 June 2026 | 3 hours 15 minutes | Late-arriving aircraft |
| 13 August 2026 | 3 hours 13 minutes | Late-arriving aircraft |
Delay causes
Why F9 777 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 6,627 reported delay minutes.
- 38%National Airspace System
- 33%Late-arriving aircraft
- 27%Carrier
- 2%Extreme weather
38% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,513 minutes out of 6,627, against a national NAS share of 21%. The split is drawn from 6,627 delay minutes reported on F9 777.
Cancellations are rare at 0.56%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
10.7% 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 357 flights under F9 777 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. 357 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 777
For a booking, read F9 777 as 72.1% on time with 0.56% cancelled over 357 flights. Those are rates from the past twelve months, not a forecast for any particular day.
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 1993 on the same route80.3%
- United Airlines 526 on the same route81.1%
- Frontier Airlines 2349 on the same route69.9%
- 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.