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DelayAtlas

Carrier route record

OODEN→FAT

SkyWest Airlines · Denver to Fresno

Flights
748
Period
September 2025 to August 2026
Share of route
52%
Carriers
3
A+GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on DEN to FAT 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 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 748 flights, with a median arrival 8 minutes early.

Set against the rest of the country, SkyWest's DEN to FAT record is 11 points better than the US average of 77.3%. That gap is worth roughly 105 fewer late arrivals for every thousand flights.

Key figures

On time

87.8%

Arrivals under 15 minutes late, of 748 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.89%

Whole route

80.3%

Every carrier on DEN to FAT, 1,452 flights

These figures cover 748 flights between September 2025 and August 2026. The median arrival is 8 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.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

SkyWest against every carrier on DEN to FAT

SkyWest flew 748 of the 1,452 flights on DEN to FAT, most of the route. Its 87.8% on time is 8 points better than the route as a whole, which runs 80.3%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from SkyWest at 87.8% to United at 70.3%. Two 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.

On-time performance by carrier on DEN to FAT
AirlineFlightsOn timeAvg delayCancelledGrade
SkyWest Airlines (this page)74887.8%63 min0.00%A+
Southwest Airlinesthin sample36074.1%38 min0.28%C+
United Airlinesthin sample34470.3%60 min0.29%C+

Flight by flight

SkyWest flight numbers on DEN to FAT

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 SkyWest 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 748 flights.

  • 5am–8am—
  • 8am–11am—
  • 11am–2pm364 flights90.4%
  • 2pm–5pm363 flights86.2%
  • 5pm–8pm20 flights—
  • 8pm–5am1 flights—

Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.

The 11am–2pm window is the strongest at 90.4% on time. The full set of windows spans 4 points.

Across the year

SkyWest on DEN to FAT through the year

On-time rate by calendar month90J86F92M92A89M82J92J74A93S97O98N74D
Darker means more delays. Figures are on-time percentages.November best, December worst

December is the weak month at 73.7% on time, against 98.3% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. December was the busiest month here, with 76 flights.

Across the week, Thursday is the strongest day at 91.4% on time and Saturday the weakest at 86.0%, a spread of 5 points.

On-time rate by day of the week86.2Mon87.7Tue88.8Wed91.4Thu86.9Fri86.0Sat87.9Sun
Monday: 86.2 percent on time. Tuesday: 87.7 percent on time. Wednesday: 88.8 percent on time. Thursday: 91.4 percent on time. Friday: 86.9 percent on time. Saturday: 86.0 percent on time. Sunday: 87.9 percent on time

Arrival by arrival

How late SkyWest on DEN to FAT runs when it is late

SkyWest on DEN to FAT often beats the schedule: 245 of 748 completed flights, 33%, arrived 15 minutes or more early. The 91 late arrivals split 31 under half an hour, 34 between 30 and 60 minutes, and 26 an hour or more.

  • 15+ min early245 flights32.8%
  • Within 15 min412 flights55.1%
  • 15–29 min late31 flights4.1%
  • 30–59 min late34 flights4.5%
  • 1–2 hours late14 flights1.9%
  • 2+ hours late12 flights1.6%

Scale runs 0% to 100%.

Share of 748 completed flights by arrival against schedule.

21 of 92 late departures made up the time and arrived on time, 23% of them. 20 flights left on time and still arrived late.

The worst days

Worst days for SkyWest on DEN to FAT

The latest arrival of the period was on 6 March 2026, 7 hours 2 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in December 2025.

The latest arrivals of SkyWest on DEN to FAT in the period
DateArrived late byLargest filed cause
6 March 20267 hours 2 minutesCarrier
15 August 20265 hours 5 minutesLate-arriving aircraft
27 December 20254 hours 45 minutesCarrier
19 December 20254 hours 31 minutesNational Airspace System
19 December 20253 hours 36 minutesNational Airspace System

Delay causes

Why SkyWest runs late on this route

Carrier accounts for 42% of the 5,752 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    42%
  • Late-arriving aircraft
    31%
  • National Airspace System
    23%
  • Extreme weather
    4%

The largest share of delay minutes, 42%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,423 of the 5,752 delay minutes reported here. The split is drawn from 5,752 reported delay minutes.

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

Badly late arrivals are rare here: only 3.5% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 844 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 91.1% on time across 746 flights, 3 points above 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 3 points of difference.

One caution: this is a thin sample. 748 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 SkyWest on DEN to FAT

Put together: treat all of this as provisional. 748 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 87.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 748 completed flights over 12 months sit behind that.

Related

Where to go next

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.