Flight number record

OO 5775

SkyWest Airlines · Denver to Aspen

Route: DEN → ASE
Departs: 17:20
Flights: 335
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5775, 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 5775 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 335 flights, with a median arrival 7 minutes early.

The national on-time rate over the same period is 77.6%, so OO 5775 runs 7 points behind the country as a whole. Across a thousand flights that is about 66 extra late arrivals.

On time

71.0%

Arrivals under 15 minutes late, of 314 completed flights

Avg delay

102 min

Across delayed arrivals only, not all flights

Cancelled

5.07%

National rate is 1.81%

1 hour+ late

15.0%

National rate is 8.1%

These figures cover 335 flights between July 2025 and June 2026. Beyond the headline rate, 15.0% 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 5775 flies

OO 5775 flies DEN to ASE without a single fixed slot. Its most common scheduled departure was 17:20, used on 83 of 335 flights, with 17:32 (76 flights) and 17:25 (56 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:2083 flights24.8%
Departs 17:3276 flights22.7%
Departs 17:2556 flights16.7%

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 17:20 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 5775 runs 3 points better at 71.0%. 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 5775 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 5775 is 4 points behind it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 8 points.

OO 5775 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5775thin sample	335	71.0%	102 min	5.07%	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 5775 quarter by quarter

OO 5775 did not run the same all year. Its best quarter was Jan–Mar 2026 at 80.2% on time and its weakest Jul–Sep 2025 at 53.9%, a swing of 26 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 flights53.9%
Oct–Dec 202591 flights76.7%
Jan–Mar 202690 flights80.2%
Apr–Jun 202662 flights75.9%

Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5775 ranged from 65.9% on Saturday to 76.7% on Friday. With about 48 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 5775 runs late

One category carries most of the weight here. Extreme weather accounts for 43% of the 9,300 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.

Extreme weather
43%
Late-arriving aircraft
23%
National Airspace System
21%
Carrier
13%

Extreme weather accounts for 43% 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 6.8 times the usual weather exposure. The split is drawn from 9,300 delay minutes reported on OO 5775.

Cancellations run at 5.07%, against 1.81% nationally. That is about one flight in twenty 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. 15.0% 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.

Every one of the 335 flights under OO 5775 in the data flew DEN to ASE. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 335 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 5775

For a booking, the cancellation rate is the figure to plan around on OO 5775: 5.07% of its 335 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