Carrier route record
F9DFW→LAS
Frontier Airlines · Dallas-Fort Worth to Las Vegas
- Flights
- 813
- Period
- July 2025 to June 2026
- Share of route
- 16%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on DFW to LAS lands a B, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 813 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 368 at 78.2% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Frontier on DFW to LAS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.0%
Arrivals under 15 minutes late, of 797 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
1.97%
National rate is 1.81%
Whole route
69.2%
Every carrier on DFW to LAS, 5,163 flights
These figures cover 813 flights between July 2025 and June 2026. The median arrival is 9 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.
Carrier by carrier
Frontier against every carrier on DFW to LAS
Frontier flew 813 of the 5,163 flights on DFW to LAS, about 16% of it. Its 77.0% on time is 8 points better than the route as a whole, which runs 69.2%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Spirit at 78.2% to American at 66.7%.
The choice of carrier is not cosmetic here. Spirit Airlines arrives on time 78.2% of the time; American Airlines manages 66.7%. Sample sizes sit next to every figure, because a two-point gap across 3,982 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlines | 368 | 78.2% | 84 min | 1.36% | B |
| Frontier Airlines (this page) | 813 | 77.0% | 76 min | 1.97% | B |
| American Airlines | 3,982 | 66.7% | 71 min | 3.04% | C− |
American Airlines cancels 3.0% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Flight by flight
Frontier flight numbers on DFW to LAS
Departure window
When Frontier runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 22 points, against 12 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am72 flights93.0%
- 8am–11am84 flights85.7%
- 11am–2pm113 flights83.8%
- 2pm–5pm111 flights72.9%
- 5pm–8pm49 flights81.6%
- 8pm–5am384 flights70.7%
Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 93.0% of the time, against 70.7% for the overnight window. That is 22 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 384 flights scheduled in it.
Across the year
Frontier on DFW to LAS through the year
June is the worst month at 55.7% on time, 35 points below December, the best at 90.8%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 82 flights.
Across the week, Wednesday is the strongest day at 92.0% on time and Sunday the weakest at 67.2%. 25 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Frontier runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 62% of the 14,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 62%Late-arriving aircraft
- 19%National Airspace System
- 16%Carrier
- 3%Extreme weather
62% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 14,000 reported delay minutes here, that single category outweighs weather by 25 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 13,836 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 93.0% on time here.
Cancellations sit at 1.97% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
7.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 1,055 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 79.9% on time across 813 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 813 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 Frontier on DFW to LAS
Put together: treat all of this as provisional. 813 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 77.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 797 completed flights over 12 months sit behind that.
Related
Where to go next
- DFW to LAS, every carrier
- Frontier on LAS to DFW, the return leg
- Spirit Airlines on DFW to LAS78.2%
- American Airlines on DFW to LAS66.7%
- Frontier Airlines network-wide record
- Dallas/Fort Worth International (DFW) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.