Flight number record

OO 5779

SkyWest Airlines · Denver to Aspen

Route: DEN → ASE
Departs: 19:10
Flights: 336
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5779, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.

OO 5779 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 336 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so OO 5779 runs 9 points behind the country as a whole. Across a thousand flights that is about 87 extra late arrivals.

On time

68.9%

Arrivals under 15 minutes late, of 318 completed flights

Avg delay

108 min

Across delayed arrivals only, not all flights

Cancelled

4.17%

National rate is 1.81%

1 hour+ late

15.7%

National rate is 8.1%

These figures cover 336 flights between July 2025 and June 2026. Beyond the headline rate, 15.7% 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.

Schedule

When OO 5779 flies

OO 5779 flies DEN to ASE without a single fixed slot. Its most common scheduled departure was 19:10, used on 162 of 336 flights, with 19:05 (87 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:10162 flights48.2%
Departs 19:0587 flights25.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 19:10 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 5779 runs level with that at 68.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 5779 next to DEN to ASE

Every carrier on DEN to ASE combined arrived on time 74.8% of the time across 2,715 flights, so OO 5779 is 6 points behind it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 10 points.

OO 5779 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5779thin sample	336	68.9%	108 min	4.17%	C−
All SkyWest Airlines on DEN–ASE	2,715	74.8%	96 min	5.23%	C−
All carriers on DEN–ASE	2,715	74.8%	96 min	5.23%	C−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5779 quarter by quarter

OO 5779 did not run the same all year. Its best quarter was Jan–Mar 2026 at 85.0% on time and its weakest Apr–Jun 2026 at 53.2%, a swing of 32 points on roughly 84 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202592 flights55.2%
Oct–Dec 202591 flights78.7%
Jan–Mar 202690 flights85.0%
Apr–Jun 202663 flights53.2%

Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5779 did best on Wednesday at 78.3% on time and worst on Friday at 62.8%. Each day rests on about 48 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5779 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 11,000 reported delay minutes.

Late-arriving aircraft
34%
National Airspace System
32%
Carrier
18%
Extreme weather
16%

Extreme weather accounts for 16% 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 quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.5 times the usual weather exposure. The split is drawn from 10,709 delay minutes reported on OO 5779.

Cancellations run at 4.17%, against 1.81% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.7% 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.

The same number turns up on one other city pair in the data, including RAP to ORD (21), but none flew often enough under OO 5779 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to ASE only.

One caution: this is a thin sample. 336 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 OO 5779

For a booking, the cancellation rate is the figure to plan around on OO 5779: 4.17% of its 336 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.

Where to go next

A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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.

Key figures