Carrier route record
F9DTW→LAS
Frontier Airlines · Detroit to Las Vegas
- Flights
- 102
- Period
- September 2025 to August 2026
- Share of route
- 4%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on DTW to LAS draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 102 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 437 at 79.2% on time.
The national on-time rate over the same period is 77.3%, so Frontier on DTW to LAS runs 12 points behind the country as a whole. Across a thousand flights that is about 123 extra late arrivals.
Key figures
On time
65.0%
Arrivals under 15 minutes late, of 100 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
1.96%
National rate is 1.89%
Whole route
73.6%
Every carrier on DTW to LAS, 2,768 flights
These figures cover 102 flights between September 2025 and August 2026. Beyond the headline rate, 13.0% 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 DTW to LAS
Frontier flew 102 of the 2,768 flights on DTW to LAS, about 4% of it. Its 65.0% on time is 9 points worse than the route as a whole, which runs 73.6%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Spirit at 79.2% to Frontier at 65.0%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: 5 points 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 |
|---|---|---|---|---|---|
| Spirit Airlines | 437 | 79.2% | 50 min | 0.92% | B+ |
| Delta Air Lines | 1,880 | 73.8% | 63 min | 0.59% | C+ |
| Southwest Airlinesthin sample | 349 | 67.7% | 45 min | 0.00% | C+ |
| Frontier Airlines (this page)thin sample | 102 | 65.0% | 79 min | 1.96% | C |
No carrier stands out. Spirit tops the table at 79.2%, 5 points clear of the bottom, which is inside the range this kind of sample moves year to year.
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 is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 102 flights.
There are not enough flights in each departure window to split Frontier's DTW to LAS record by time of day without the percentages moving on noise. The headline rate of 65.0% is the reliable figure here.
Across the year
Frontier on DTW to LAS through the year
- Oct–Dec 202526 flights—
- Jan–Mar 20266 flights—
- Apr–Jun 202613 flights—
- Jul–Sep 202657 flights67.3%
Scale runs 60% to 75%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 65.0% on time across 102 flights.
Split by quarter, Frontier on DTW to LAS logged 26 flights in Oct–Dec 2025, 6 flights in Jan–Mar 2026, 13 flights in Apr–Jun 2026 and 57 flights in Jul–Sep 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 65.0% annual figure is the one to use.
Arrival by arrival
How late Frontier on DTW to LAS runs when it is late
Frontier on DTW to LAS often beats the schedule: 29 of 100 completed flights, 29%, arrived 15 minutes or more early. The 35 late arrivals split 8 under half an hour, 14 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early29 flights29.0%
- Within 15 min36 flights36.0%
- 15–29 min late8 flights8.0%
- 30–59 min late14 flights14.0%
- 1–2 hours late7 flights7.0%
- 2+ hours late6 flights6.0%
Scale runs 0% to 100%.
Share of 100 completed flights by arrival against schedule.
10 of 39 late departures made up the time and arrived on time, 26% of them. In the other direction, 6 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 Frontier on DTW to LAS
The latest arrival of the period was on 18 August 2026, 12 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 |
|---|---|---|
| 18 August 2026 | 12 hours 3 minutes | Late-arriving aircraft |
| 30 November 2025 | 3 hours 31 minutes | Carrier |
| 7 April 2026 | 2 hours 18 minutes | Late-arriving aircraft |
| 5 August 2026 | 2 hours 10 minutes | Carrier |
| 11 July 2026 | 2 hours 8 minutes | Late-arriving aircraft |
Delay causes
Why Frontier runs late on this route
Late-arriving aircraft accounts for 60% of the 2,771 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Late-arriving aircraft
- 30%Carrier
- 7%National Airspace System
- 4%Extreme weather
60% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,771 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 2,771 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 66.7% on time here.
Cancellations sit at 1.96% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
13.0% 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.
At 1,749 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 67.0% on time across 102 flights, within 2 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. 102 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 DTW to LAS
Put together: treat all of this as provisional. 102 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 65.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 100 completed flights over 12 months sit behind that.
Related
Where to go next
- DTW to LAS, every carrier
- Frontier on LAS to DTW, the return leg
- Spirit Airlines on DTW to LAS79.2%
- Delta Air Lines on DTW to LAS73.8%
- Southwest Airlines on DTW to LAS67.7%
- Frontier Airlines network-wide record
- Detroit Metropolitan Wayne County (DTW) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.