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DelayAtlas

Carrier route record

OODEN→MTJ

SkyWest Airlines · Denver to Montrose

Flights
101
Period
September 2025 to August 2026
Share of route
7%
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 MTJ 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 45 minutes. That rests on 101 flights. The strongest carrier on the route with a full sample, United Airlines, flew 894 at 75.8% on time.

Set against the rest of the country, SkyWest's DEN to MTJ record is 10 points better than the US average of 77.3%. That gap is worth roughly 98 fewer late arrivals for every thousand flights.

Key figures

On time

87.1%

Arrivals under 15 minutes late, of 101 completed flights

Avg delay

45 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.89%

Whole route

75.4%

Every carrier on DEN to MTJ, 1,424 flights

These figures cover 101 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

SkyWest against every carrier on DEN to MTJ

SkyWest flew 101 of the 1,424 flights on DEN to MTJ, about 7% of it. Its 87.1% on time is 12 points better than the route as a whole, which runs 75.4%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from SkyWest at 87.1% to Southwest at 72.0%.

The two carriers here are closely matched: 4 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.

On-time performance by carrier on DEN to MTJ
AirlineFlightsOn timeAvg delayCancelledGrade
SkyWest Airlines (this page)thin sample10187.1%45 min0.00%A+
United Airlines89475.8%68 min0.11%B+
Southwest Airlines42972.0%61 min0.23%C+

No carrier stands out. United tops the table at 75.8%, 4 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 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 101 flights.

There are not enough flights in each departure window to split SkyWest's DEN to MTJ record by time of day without the percentages moving on noise. The headline rate of 87.1% is the reliable figure here.

Across the year

SkyWest on DEN to MTJ through the year

  • Oct–Dec 202515 flights—
  • Jan–Mar 20265 flights—
  • Apr–Jun 202641 flights85.4%
  • Jul–Sep 202640 flights85.0%

Scale runs 75% to 90%. 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 87.1% on time across 101 flights.

Split by quarter, SkyWest on DEN to MTJ logged 15 flights in Oct–Dec 2025, 5 flights in Jan–Mar 2026, 41 flights in Apr–Jun 2026 and 40 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 87.1% annual figure is the one to use.

Arrival by arrival

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

SkyWest on DEN to MTJ often beats the schedule: 39 of 101 completed flights, 39%, arrived 15 minutes or more early. The 13 late arrivals split 5 under half an hour, 6 between 30 and 60 minutes, and 2 an hour or more.

  • 15+ min early39 flights38.6%
  • Within 15 min49 flights48.5%
  • 15–29 min late5 flights5.0%
  • 30–59 min late6 flights5.9%
  • 1–2 hours late1 flights1.0%
  • 2+ hours late1 flights1.0%

Scale runs 0% to 100%.

Share of 101 completed flights by arrival against schedule.

Only 12 of 101 completed flights left 15 minutes late or more, too few to say how often the time is made up.

The worst days

Worst days for SkyWest on DEN to MTJ

The latest arrival of the period was on 5 January 2026, 3 hours 23 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in July 2026.

The latest arrivals of SkyWest on DEN to MTJ in the period
DateArrived late byLargest filed cause
5 January 20263 hours 23 minutesLate-arriving aircraft
22 June 20261 hour 7 minutesCarrier
9 July 202644 minutesCarrier
29 July 202639 minutesNational Airspace System
28 July 202636 minutesNational Airspace System

Delay causes

Why SkyWest runs late on this route

Late-arriving aircraft accounts for 42% of the 588 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    42%
  • Carrier
    38%
  • National Airspace System
    16%
  • Extreme weather
    3%

42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 588 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 588 reported delay minutes.

The largest share of delay minutes, 38%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 226 of the 588 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 2.0% 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.

At 197 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 74.3% on time across 101 flights, 13 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 13 points of difference.

One caution: this is a thin sample. 101 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 MTJ

Put together: treat all of this as provisional. 101 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 87.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 101 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.