Skip to content
DelayAtlas

Carrier route record

OOFAT→DEN

SkyWest Airlines · Fresno to Denver

Flights
746
Period
September 2025 to August 2026
Share of route
51%
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 FAT to DEN 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 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 746 flights, with a median arrival 14 minutes early.

Set against the rest of the country, SkyWest's FAT to DEN record is 14 points better than the US average of 77.3%. That gap is worth roughly 138 fewer late arrivals for every thousand flights.

Key figures

On time

91.1%

Arrivals under 15 minutes late, of 743 completed flights

Avg delay

87 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.89%

Whole route

88.7%

Every carrier on FAT to DEN, 1,449 flights

These figures cover 746 flights between September 2025 and August 2026. The median arrival is 14 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 FAT to DEN

SkyWest flew 746 of the 1,449 flights on FAT to DEN, most of the route. Its 91.1% on time is 2 points better than the route as a whole, which runs 88.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from United at 91.5% to Southwest at 81.0%. 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 FAT to DEN
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlinesthin sample34491.5%95 min0.29%A+
SkyWest Airlines (this page)74691.1%87 min0.00%A+
Southwest Airlinesthin sample35981.0%54 min0.00%B+

Flight by flight

SkyWest flight numbers on FAT to DEN

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 746 flights.

  • 5am–8am20 flights—
  • 8am–11am364 flights91.2%
  • 11am–2pm362 flights90.8%
  • 2pm–5pm—
  • 5pm–8pm—
  • 8pm–5am—

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

The 8am–11am window is the strongest at 91.2% on time. The full set of windows spans half a point.

Across the year

SkyWest on FAT to DEN through the year

On-time rate by calendar month88J86F81M90A95M97J85J97A92S98O97N89D
Darker means more delays. Figures are on-time percentages.October best, March worst

October is the best month on the calendar at 98.4% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. December was the busiest month here, with 74 flights.

Across the week, Wednesday is the strongest day at 94.2% on time and Sunday the weakest at 87.9%, a spread of 6 points.

On-time rate by day of the week90.8Mon92.5Tue94.2Wed90.4Thu88.8Fri93.4Sat87.9Sun
Monday: 90.8 percent on time. Tuesday: 92.5 percent on time. Wednesday: 94.2 percent on time. Thursday: 90.4 percent on time. Friday: 88.8 percent on time. Saturday: 93.4 percent on time. Sunday: 87.9 percent on time

Arrival by arrival

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

SkyWest on FAT to DEN often beats the schedule: 351 of 743 completed flights, 47%, arrived 15 minutes or more early. The 66 late arrivals split 16 under half an hour, 18 between 30 and 60 minutes, and 32 an hour or more.

  • 15+ min early351 flights47.2%
  • Within 15 min326 flights43.9%
  • 15–29 min late16 flights2.2%
  • 30–59 min late18 flights2.4%
  • 1–2 hours late20 flights2.7%
  • 2+ hours late12 flights1.6%

Scale runs 0% to 100%.

Share of 743 completed flights by arrival against schedule.

18 of 69 late departures made up the time and arrived on time, 26% of them. 15 flights left on time and still arrived late.

The worst days

Worst days for SkyWest on FAT to DEN

The latest arrival of the period was on 29 July 2026, 10 hours 19 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of SkyWest on FAT to DEN in the period
DateArrived late byLargest filed cause
29 July 202610 hours 19 minutesCarrier
19 March 20266 hours 48 minutesLate-arriving aircraft
2 February 20265 hours 42 minutesCarrier
26 July 20263 hours 44 minutesExtreme weather
1 January 20263 hours 39 minutesCarrier

Delay causes

Why SkyWest runs late on this route

Carrier accounts for 56% of the 5,720 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    56%
  • Late-arriving aircraft
    21%
  • Extreme weather
    12%
  • National Airspace System
    11%
  • Security
    0%

Extreme weather accounts for 12% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.0 times the usual weather exposure. The split is drawn from 5,720 reported delay minutes.

The largest share of delay minutes, 56%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,198 of the 5,720 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

Badly late arrivals are rare here: only 4.3% 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 87.8% on time across 748 flights, 3 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 3 points of difference.

One caution: this is a thin sample. 746 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 FAT to DEN

Put together: treat all of this as provisional. 746 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 91.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 743 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.