Route reliability record

PSC→DEN

Pasco to Denver

Flights: 728
Period: September 2025 to August 2026
Distance: 853 mi
Carriers: 2

This route 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 12 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 728 PSC to DEN flights, with a median arrival 15 minutes early.

Set against the rest of the country, this route's record is 12 points better than the US average of 77.3%. That gap is worth roughly 118 fewer late arrivals for every thousand flights.

On time

89.1%

Arrivals under 15 minutes late, of 718 completed flights

Avg delay

84 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.89%

Best carrier

SkyWest

87.2% on time across 365 flights

These figures cover 728 flights between September 2025 and August 2026. The median arrival is 15 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

Which airline is most reliable on PSC to DEN

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 PSC to DEN
Airline	Flights	On time	Avg delay	Cancelled	Grade
United Airlinesthin sample	363	91.1%	88 min	0.83%	A+
SkyWest Airlines	365	87.2%	81 min	0.27%	A+

Flight by flight

Flights on PSC to DEN

The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.

SkyWest 472112:4587.1% · 363 flights

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

The best time of day to leave

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 728 flights.

5am–8am364 flights91.1%
8am–11am1 flights—
11am–2pm363 flights87.1%
2pm–5pm—
5pm–8pm—
8pm–5am—

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

The early departures do better, though not dramatically: 91.1% on time for the 5am–8am window against 87.1% for 11am–2pm. Worth taking if the schedule allows, not worth an extra connection. The 5am–8am window is the busiest, with 364 flights scheduled in it.

Explore

Filter PSC to DEN by airline, time, month and day

Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.

On PSC to DEN, the best departure window is 5am–8am at 91.1% on time and the worst is 11am–2pm at 87.1%, a narrow gap of 4.0 points. All US flights leaving 5am–8am ran 89.3%.

5–8am91.1%
8–11am—
11am–2pm87.1%
2–5pm—
5–8pm—
8pm–5am—

best all US flightsScale 60% to 95%. Cells under 30 flights show a dash.

Across the year

When delays peak on this route

This route's year swings by 15 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.

Darker means more delays. Figures are on-time percentages.June best, February worst

February is the weak month at 80.4% on time, against 94.9% in June. 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. January was the busiest month here, with 62 flights.

Across the week, Tuesday is the strongest day at 91.3% on time and Friday the weakest at 86.3%, a spread of 5 points.

Delay causes

Why this route gets delayed

Carrier accounts for 53% of the 6,527 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
53%
National Airspace System
22%
Late-arriving aircraft
15%
Extreme weather
10%

The largest share of delay minutes, 53%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,482 of the 6,527 delay minutes reported here. The split is drawn from 6,527 reported delay minutes.

Cancellations are rare at 0.55%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and stage length

What a delay here actually costs

Badly late arrivals are rare here: only 4.9% 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 853 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 76.0% on time across 729 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. 728 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.

Work out the risk of missing a connection in DEN after this flight

What to do with this

Booking this route

Put together: treat all of this as provisional. 728 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 89.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 718 completed flights over 12 months sit behind that.

Common questions

PSC to DEN questions

How often is PSC to DEN delayed?

About one flight in nine arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 10.9% of the 728 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.

How reliable is PSC to DEN compared with the rest of the country?

89.1% of flights arrive on time here against a national 77.3%, a difference of 12 points in its favour. That is worth a A+ on this site's grading scale.

What time of day has the fewest delays on PSC to DEN?

The 5am–8am departure window is the strongest at 91.1% on time. The 11am–2pm window is the weakest at 87.1%, 4 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are February delays on PSC to DEN?

February is the weakest month at 80.4% on time, compared with 94.9% in June. Across the year that is 15 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Where to go next

Direction matters. PSC to DEN and DEN to PSC are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.

Embed PSC to DEN’s on-time badge on your site

Paste this into a web page. The badge shows the current on-time rate, cancellation rate and grade, and updates every month. Preview it, or build a badge for another route or airport.

<iframe src="https://delayatlas.com/embed/route/psc-den" width="320" height="132" style="border:0;max-width:100%" loading="lazy" title="PSC to DEN on-time record"></iframe>
<p style="font:12px/1.4 sans-serif;margin:4px 0 0">PSC to DEN flight delay statistics from <a href="https://delayatlas.com/routes/psc-to-den">DelayAtlas</a></p>

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.