Flight number record
OO 5775
SkyWest Airlines · Denver to Aspen
- Route
- DEN → ASE
- Departs
- 17:25
- Flights
- 331
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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, 5 points worse than the national rate of 77.3%. The late ones land close to two hours behind schedule. That rests on 331 flights, with a median arrival 7 minutes early.
The national on-time rate over the same period is 77.3%, so OO 5775 runs 5 points behind the country as a whole. Across a thousand flights that is about 50 extra late arrivals.
Key figures
On time
72.3%
Arrivals under 15 minutes late, of 307 completed flights
Avg delay
105 min
Across delayed arrivals only, not all flights
Cancelled
6.04%
National rate is 1.89%
1 hour+ late
14.7%
National rate is 8.3%
These figures cover 331 flights between September 2025 and August 2026. Beyond the headline rate, 14.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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.
Schedule
When OO 5775 flies
OO 5775 flies DEN to ASE without a single fixed slot. Its most common scheduled departure was 17:25, used on 96 of 331 flights, with 17:32 (76 flights) and 17:29 (37 flights) next.
- Departs 17:2596 flights29.0%
- Departs 17:3276 flights23.0%
- Departs 17:2937 flights11.2%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 17:25 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 5775 runs 4 points better at 72.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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.
Against the route
OO 5775 next to DEN to ASE
Every carrier on DEN to ASE combined arrived on time 74.2% of the time across 2,742 flights, so OO 5775 is 2 points behind it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5775thin sample | 331 | 72.3% | 105 min | 6.04% | C− |
| All SkyWest Airlines on DEN–ASE | 2,742 | 74.2% | 96 min | 5.11% | C− |
| All carriers on DEN–ASE | 2,742 | 74.2% | 96 min | 5.11% | C− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | 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 2026 at 50.0%, a swing of 30 points on roughly 66 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 202530 flights70.0%
- Oct–Dec 202591 flights76.7%
- Jan–Mar 202690 flights80.2%
- Apr–Jun 202662 flights75.9%
- Jul–Sep 202658 flights50.0%
Scale runs 40% to 85%.
By weekday, OO 5775 ranged from 67.5% on Saturday to 79.1% on Friday. With about 47 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late OO 5775 runs when it is late
OO 5775 often beats the schedule: 88 of 307 completed flights, 29%, arrived 15 minutes or more early. When OO 5775 is late it tends to be very late: 45 of its 85 late arrivals were an hour or more behind, and 21 were two hours or more.
- 15+ min early88 flights28.7%
- Within 15 min134 flights43.6%
- 15–29 min late17 flights5.5%
- 30–59 min late23 flights7.5%
- 1–2 hours late24 flights7.8%
- 2+ hours late21 flights6.8%
Scale runs 0% to 100%.
Share of 307 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 75 departures that left 15 minutes late or more, only 3 made it up before arrival. 13 flights left on time and still arrived late.
The worst days
Worst days for OO 5775
The latest arrival of the period was on 28 July 2026, 14 hours 17 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across July, February, April and October, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 July 2026 | 14 hours 17 minutes | Late-arriving aircraft |
| 18 February 2026 | 13 hours 48 minutes | Extreme weather |
| 19 July 2026 | 13 hours 34 minutes | Carrier |
| 22 April 2026 | 3 hours 53 minutes | Late-arriving aircraft |
| 15 October 2025 | 3 hours 38 minutes | National Airspace System |
Delay causes
Why OO 5775 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 8,946 reported delay minutes.
- 35%Late-arriving aircraft
- 26%Extreme weather
- 22%Carrier
- 16%National Airspace System
Extreme weather accounts for 26% 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 4.3 times the usual weather exposure. The split is drawn from 8,946 delay minutes reported on OO 5775.
Cancellations run at 6.04%, against 1.89% nationally. That is roughly one flight in fifteen 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
14.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
Every one of the 331 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. 331 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: 6.04% of its 331 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.
Related
Where to go next
- DEN to ASE, every carrier and departure
- ASE to DEN, the return direction
- SkyWest Airlines 5769 on the same route74.0%
- SkyWest Airlines 5771 on the same route72.0%
- SkyWest Airlines 5779 on the same route69.5%
- SkyWest Airlines 5773 on the same route77.4%
- SkyWest Airlines 5782 on the same route78.5%
- SkyWest Airlines 5781 on the same route77.4%
- Denver International (DEN) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.