Carrier route record
F9DFW→LAX
Frontier Airlines · Dallas-Fort Worth to Los Angeles
- Flights
- 510
- Period
- September 2025 to August 2026
- Share of route
- 8%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on DFW to LAX lands a B+, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 510 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 757 at 89.2% on time.
Delta Air Lines is the most reliable of the three carriers covered here at 89.2% on time across 757 flights.
Key figures
On time
79.2%
Arrivals under 15 minutes late, of 504 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
0.98%
National rate is 1.89%
Whole route
74.0%
Every carrier on DFW to LAX, 6,184 flights
These figures cover 510 flights between September 2025 and August 2026. Beyond the headline rate, 9.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Frontier against every carrier on DFW to LAX
Frontier flew 510 of the 6,184 flights on DFW to LAX, about 8% of it. Its 79.2% on time is 5 points better than the route as a whole, which runs 74.0%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Delta at 89.2% to American at 70.2%.
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 89.2% of the time; American Airlines manages 70.2%. Sample sizes sit next to every figure, because a two-point gap across 4,536 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 757 | 89.2% | 95 min | 1.59% | A |
| Spirit Airlines | 381 | 81.5% | 72 min | 3.67% | B− |
| Frontier Airlines (this page) | 510 | 79.2% | 78 min | 0.98% | B+ |
| American Airlines | 4,536 | 70.2% | 64 min | 2.25% | C |
Spirit Airlines cancels 3.7% 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.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 17 points, against 19 points between the best and worst carrier.
- 5am–8am143 flights87.4%
- 8am–11am25 flights—
- 11am–2pm40 flights79.5%
- 2pm–5pm154 flights78.7%
- 5pm–8pm16 flights—
- 8pm–5am132 flights70.2%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 87.4% of the time, against 70.2% for the overnight window. That is 17 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 154 flights scheduled in it.
Across the year
Frontier on DFW to LAX through the year
May is the best month on the calendar at 89.7% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. July was the busiest month here, with 62 flights.
Across the week, Thursday is the strongest day at 85.1% on time and Sunday the weakest at 68.1%, a spread of 17 points.
Arrival by arrival
How late Frontier on DFW to LAX runs when it is late
Frontier on DFW to LAX often beats the schedule: 209 of 504 completed flights, 41%, arrived 15 minutes or more early. The 105 late arrivals split 33 under half an hour, 25 between 30 and 60 minutes, and 47 an hour or more.
- 15+ min early209 flights41.5%
- Within 15 min190 flights37.7%
- 15–29 min late33 flights6.5%
- 30–59 min late25 flights5.0%
- 1–2 hours late33 flights6.5%
- 2+ hours late14 flights2.8%
Scale runs 0% to 100%.
Share of 504 completed flights by arrival against schedule.
31 of 128 late departures made up the time and arrived on time, 24% of them. Only 8 left on time and still arrived late.
The worst days
Worst days for Frontier on DFW to LAX
The latest arrival of the period was on 29 September 2025, 13 hours 45 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 September 2025 | 13 hours 45 minutes | Late-arriving aircraft |
| 27 October 2025 | 7 hours 58 minutes | Late-arriving aircraft |
| 10 November 2025 | 6 hours 43 minutes | Late-arriving aircraft |
| 6 June 2026 | 4 hours 26 minutes | Late-arriving aircraft |
| 2 June 2026 | 4 hours 15 minutes | Late-arriving aircraft |
Delay causes
Why Frontier runs late on this route
Late-arriving aircraft accounts for 69% of the 8,210 delay minutes carriers reported here, and the remaining four split what is left.
- 69%Late-arriving aircraft
- 20%Carrier
- 9%National Airspace System
- 2%Extreme weather
69% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,210 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 8,210 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 87.4% on time here.
Cancellations sit at 0.98% against a national 1.89%, which is ordinary. Diversions add another 0.20%.
Connections and stage length
What a delay here costs
9.3% 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 1,235 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.
The return leg is a different operation and performs like one: it runs 72.6% on time across 510 flights, 7 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 7 points of difference.
One caution: this is a thin sample. 510 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 LAX
Put together: treat all of this as provisional. 510 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 79.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 504 completed flights over 12 months sit behind that.
Related
Where to go next
- DFW to LAX, every carrier
- Frontier on LAX to DFW, the return leg
- Delta Air Lines on DFW to LAX89.2%
- Spirit Airlines on DFW to LAX81.5%
- American Airlines on DFW to LAX70.2%
- Frontier Airlines network-wide record
- Dallas/Fort Worth International (DFW) delay statistics
- Los Angeles International (LAX) delay statistics
- Same route, different airline: where the carrier you pick matters most
- Why the first flight of the morning is statistically safest
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.