Flight number record
OO 5774
SkyWest Airlines · Aspen to Denver
- Route
- ASE → DEN
- Departs
- 13:22
- Flights
- 335
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5774, 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 5774 lands a B, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 335 flights, with a median arrival 13 minutes early.
Key figures
On time
76.9%
Arrivals under 15 minutes late, of 324 completed flights
Avg delay
121 min
Across delayed arrivals only, not all flights
Cancelled
2.99%
National rate is 1.89%
1 hour+ late
15.4%
National rate is 8.3%
These figures cover 335 flights between September 2025 and August 2026. Beyond the headline rate, 15.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5774 flies
OO 5774 flies ASE to DEN without a single fixed slot. Its most common scheduled departure was 13:22, used on 58 of 335 flights, with 13:15 (50 flights) and 13:07 (47 flights) next.
- Departs 13:2258 flights17.3%
- Departs 13:1550 flights14.9%
- Departs 13:0747 flights14.0%
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 13:22 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 5774 runs level with that at 76.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 5774 next to ASE to DEN
Every carrier on ASE to DEN combined arrived on time 76.7% of the time across 2,742 flights, so OO 5774 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5774thin sample | 335 | 76.9% | 121 min | 2.99% | B |
| All SkyWest Airlines on ASE–DEN | 2,742 | 76.7% | 106 min | 4.96% | B− |
| All carriers on ASE–DEN | 2,742 | 76.7% | 106 min | 4.96% | B− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5774 quarter by quarter
Quarter by quarter OO 5774 held fairly steady: 80.0% in Jul–Sep 2025, 77.5% in Oct–Dec 2025, 77.4% in Jan–Mar 2026, 75.0% in Apr–Jun 2026 and 75.4% in Jul–Sep 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights80.0%
- Oct–Dec 202591 flights77.5%
- Jan–Mar 202690 flights77.4%
- Apr–Jun 202662 flights75.0%
- Jul–Sep 202662 flights75.4%
Scale runs 65% to 85%.
By weekday, OO 5774 did best on Wednesday at 86.7% on time and worst on Sunday at 66.7%. Each day rests on about 48 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5774 runs when it is late
OO 5774 often beats the schedule: 151 of 324 completed flights, 47%, arrived 15 minutes or more early. When OO 5774 is late it tends to be very late: 50 of its 75 late arrivals were an hour or more behind, and 26 were two hours or more.
- 15+ min early151 flights46.6%
- Within 15 min98 flights30.2%
- 15–29 min late13 flights4.0%
- 30–59 min late12 flights3.7%
- 1–2 hours late24 flights7.4%
- 2+ hours late26 flights8.0%
Scale runs 0% to 100%.
Share of 324 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 8 made it up before arrival. 8 flights left on time and still arrived late.
The worst days
Worst days for OO 5774
The latest arrival of the period was on 8 June 2026, 7 hours 57 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across June, March and July, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 June 2026 | 7 hours 57 minutes | Late-arriving aircraft |
| 29 March 2026 | 7 hours 8 minutes | Carrier |
| 30 June 2026 | 6 hours 43 minutes | Late-arriving aircraft |
| 28 July 2026 | 6 hours 16 minutes | Extreme weather |
| 26 July 2026 | 5 hours 41 minutes | Extreme weather |
Delay causes
Why OO 5774 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 9,078 reported delay minutes.
- 35%Late-arriving aircraft
- 22%National Airspace System
- 22%Extreme weather
- 21%Carrier
Extreme weather accounts for 22% 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 3.6 times the usual weather exposure. The split is drawn from 9,078 delay minutes reported on OO 5774.
Cancellations run at 2.99%, against 1.89% nationally. That is roughly one flight in 30 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
15.4% 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.
The same number turns up on one other city pair in the data, including BDL to ORD (13), but none flew often enough under OO 5774 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ASE to DEN only.
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 5774
For a booking, the cancellation rate is the figure to plan around on OO 5774: 2.99% 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.
Related
Where to go next
- ASE to DEN, every carrier and departure
- DEN to ASE, the return direction
- SkyWest Airlines 5766 on the same route90.1%
- SkyWest Airlines 5778 on the same route70.1%
- SkyWest Airlines 5776 on the same route62.5%
- SkyWest Airlines 5772 on the same route76.7%
- 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.