Carrier route record
F9DEN→FAR
Frontier Airlines · Denver to Fargo
- Flights
- 173
- Period
- September 2025 to August 2026
- Share of route
- 12%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on DEN to FAR earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 173 flights, with a median arrival 11 minutes early.
Set against the rest of the country, Frontier's DEN to FAR record is 10 points better than the US average of 77.3%. That gap is worth roughly 100 fewer late arrivals for every thousand flights.
Key figures
On time
87.3%
Arrivals under 15 minutes late, of 173 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
79.7%
Every carrier on DEN to FAR, 1,415 flights
These figures cover 173 flights between September 2025 and August 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.
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Carrier by carrier
Frontier against every carrier on DEN to FAR
Frontier flew 173 of the 1,415 flights on DEN to FAR, about 12% of it. Its 87.3% on time is 8 points better than the route as a whole, which runs 79.7%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Frontier at 87.3% to United at 74.3%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Frontier Airlines (this page)thin sample | 173 | 87.3% | 65 min | 0.00% | A+ |
| SkyWest Airlines | 879 | 80.5% | 74 min | 1.14% | B |
| United Airlinesthin sample | 363 | 74.3% | 72 min | 0.00% | C+ |
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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 173 flights.
There are not enough flights in each departure window to split Frontier's DEN to FAR record by time of day without the percentages moving on noise. The headline rate of 87.3% is the reliable figure here.
Across the year
Frontier on DEN to FAR through the year
- Jul–Sep 202517 flights—
- Oct–Dec 202546 flights80.4%
- Jan–Mar 202630 flights83.3%
- Apr–Jun 202646 flights89.1%
- Jul–Sep 202634 flights94.1%
Scale runs 70% to 100%. 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 87.3% on time across 173 flights.
Frontier on DEN to FAR did not run the same all year. Its best quarter was Jul–Sep 2026 at 94.1% on time and its weakest Oct–Dec 2025 at 80.4%, a swing of 14 points on roughly 43 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.
Across the week, Monday is the strongest day at 88.9% on time and Friday the weakest at 81.4%, a spread of 8 points.
Arrival by arrival
How late Frontier on DEN to FAR runs when it is late
Frontier on DEN to FAR often beats the schedule: 70 of 173 completed flights, 40%, arrived 15 minutes or more early. The 22 late arrivals split 5 under half an hour, 6 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early70 flights40.5%
- Within 15 min81 flights46.8%
- 15–29 min late5 flights2.9%
- 30–59 min late6 flights3.5%
- 1–2 hours late8 flights4.6%
- 2+ hours late3 flights1.7%
Scale runs 0% to 100%.
Share of 173 completed flights by arrival against schedule.
6 of 28 late departures made up the time and arrived on time, 21% of them. No flight that left on time arrived late.
The worst days
Worst days for Frontier on DEN to FAR
The latest arrival of the period was on 15 May 2026, 2 hours 54 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 May 2026 | 2 hours 54 minutes | Late-arriving aircraft |
| 22 November 2025 | 2 hours 13 minutes | Late-arriving aircraft |
| 20 October 2025 | 2 hours 9 minutes | Late-arriving aircraft |
| 10 October 2025 | 1 hour 44 minutes | Late-arriving aircraft |
| 15 March 2026 | 1 hour 34 minutes | Carrier |
Delay causes
Why Frontier runs late on this route
Late-arriving aircraft accounts for 57% of the 1,428 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Late-arriving aircraft
- 40%Carrier
- 3%National Airspace System
57% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,428 reported delay minutes here, that single category outweighs weather by 57 to one. The split is drawn from 1,428 reported delay minutes.
The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 573 of the 1,428 delay minutes reported here.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
6.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 627 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 79.1% on time across 172 flights, 8 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 8 points of difference.
One caution: this is a thin sample. 173 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 DEN to FAR
Put together: treat all of this as provisional. 173 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 87.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 173 completed flights over 12 months sit behind that.
Related
Where to go next
- DEN to FAR, every carrier
- Frontier on FAR to DEN, the return leg
- SkyWest Airlines on DEN to FAR80.5%
- United Airlines on DEN to FAR74.3%
- Frontier Airlines network-wide record
- Denver International (DEN) delay statistics
- Why the first flight of the morning is statistically safest
- How to read this site: grades, sample sizes, and honest caveats
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.