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DelayAtlas

Carrier route record

OODENLBB

SkyWest Airlines · Denver to Lubbock

Flights
707
Period
July 2025 to June 2026
Share of route
72%
Carriers
2
CGRADE

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

SkyWest on DEN to LBB sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 707 flights, with a median arrival 7 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate SkyWest on DEN to LBB from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

73.7%

Arrivals under 15 minutes late, of 692 completed flights

Avg delay

102 min

Across delayed arrivals only, not all flights

Cancelled

1.56%

National rate is 1.81%

Whole route

71.9%

Every carrier on DEN to LBB, 977 flights

These figures cover 707 flights between July 2025 and June 2026. Beyond the headline rate, 13.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

SkyWest against every carrier on DEN to LBB

SkyWest flew 707 of the 977 flights on DEN to LBB, most of the route. Its 73.7% on time is 2 points better than the route as a whole, which runs 71.9%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 73.7% to Southwest at 67.2%. 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.

On-time performance by carrier on DEN to LBB
AirlineFlightsOn timeAvg delayCancelledGrade
SkyWest Airlines (this page)70773.7%102 min1.56%C
Southwest Airlinesthin sample27067.2%76 min1.48%C

Flight by flight

SkyWest flight numbers on DEN to LBB

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 707 flights.

  • 5am–8am
  • 8am–11am20 flights
  • 11am–2pm99 flights70.8%
  • 2pm–5pm266 flights77.1%
  • 5pm–8pm307 flights69.9%
  • 8pm–5am15 flights

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

The best window here is not the first bank but the 2pm–5pm slot at 77.1% on time, ahead of 5pm–8pm at 69.9%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 5pm–8pm window is the busiest, with 307 flights scheduled in it.

Across the year

SkyWest on DEN to LBB through the year

On-time rate by calendar month71J65F83M73A76M66J54J60A80S91O87N73D
Darker means more delays. Figures are on-time percentages.October best, July worst

July is the worst month at 54.2% on time, 37 points below October, the best at 91.4%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 78 flights.

Across the week, Tuesday is the strongest day at 82.1% on time and Saturday the weakest at 67.7%. 14 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week72.4Mon82.1Tue74.5Wed76.4Thu71.7Fri67.7Sat68.3Sun
Monday: 72.4 percent on time. Tuesday: 82.1 percent on time. Wednesday: 74.5 percent on time. Thursday: 76.4 percent on time. Friday: 71.7 percent on time. Saturday: 67.7 percent on time. Sunday: 68.3 percent on time

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 18,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

  • Late-arriving aircraft
    45%
  • Carrier
    37%
  • National Airspace System
    16%
  • Extreme weather
    3%

45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 18,000 reported delay minutes here, that single category outweighs weather by 14 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 18,475 reported delay minutes.

The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 6,758 of the 18,000 delay minutes reported here.

Cancellations sit at 1.56% against a national 1.81%, which is ordinary. Diversions add another 0.57%.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

At 456 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 2pm–5pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 69.9% on time across 708 flights, 4 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 4 points of difference.

One caution: this is a thin sample. 707 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 LBB

Put together: treat all of this as provisional. 707 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 73.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 692 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.