Carrier route record
F9LAS→DFW
Frontier Airlines · Las Vegas to Dallas-Fort Worth
- 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 LAS to DFW lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half 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, American Airlines, flew 3,987 at 80.3% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Frontier on LAS to DFW from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.9%
Arrivals under 15 minutes late, of 792 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
1.97%
National rate is 1.81%
Whole route
80.2%
Every carrier on LAS to DFW, 5,173 flights
These figures cover 813 flights between July 2025 and June 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.
Carrier by carrier
Frontier against every carrier on LAS to DFW
Frontier flew 813 of the 5,173 flights on LAS to DFW, about 16% of it. Its 79.9% on time is about level with the route as a whole at 80.2%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from American at 80.3% to Spirit at 79.8%.
The two carriers here are closely matched: half a point separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 3,987 | 80.3% | 104 min | 3.19% | B− |
| Frontier Airlines (this page) | 813 | 79.9% | 85 min | 1.97% | B |
| Spirit Airlines | 373 | 79.8% | 78 min | 1.07% | B |
American Airlines cancels 3.2% 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 LAS to DFW
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 15 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am119 flights87.0%
- 8am–11am118 flights77.4%
- 11am–2pm90 flights76.7%
- 2pm–5pm91 flights72.1%
- 5pm–8pm64 flights79.0%
- 8pm–5am331 flights81.5%
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 87.0% of the time, against 72.1% for the afternoon window. That is 15 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 331 flights scheduled in it.
Across the year
Frontier on LAS to DFW through the year
June is the worst month at 64.5% on time, 27 points below February, the best at 91.5%. 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 86.2% on time and Monday the weakest at 72.7%. 14 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 48% 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.
- 48%Late-arriving aircraft
- 32%Carrier
- 20%National Airspace System
- 0%Extreme weather
48% 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 48 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 13,556 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 87.0% on time here.
Cancellations sit at 1.97% against a national 1.81%, which is ordinary. Diversions add another 0.62%.
Connections and stage length
What a delay here costs
7.1% 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 an hour and a half, 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 77.0% 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 LAS to DFW
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 79.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 792 completed flights over 12 months sit behind that.
Related
Where to go next
- LAS to DFW, every carrier
- Frontier on DFW to LAS, the return leg
- American Airlines on LAS to DFW80.3%
- Spirit Airlines on LAS to DFW79.8%
- Frontier Airlines network-wide record
- Harry Reid International (LAS) delay statistics
- Dallas/Fort Worth International (DFW) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
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.