Flight number record
OO 6407
SkyWest Airlines · Aspen to Dallas-Fort Worth
- Route
- ASE → DFW
- Departs
- 12:39
- Flights
- 279
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 6407, 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 6407 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 279 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.6%, so OO 6407 runs 16 points behind the country as a whole. Across a thousand flights that is about 164 extra late arrivals.
Key figures
On time
61.2%
Arrivals under 15 minutes late, of 263 completed flights
Avg delay
114 min
Across delayed arrivals only, not all flights
Cancelled
5.38%
National rate is 1.81%
1 hour+ late
19.0%
National rate is 8.1%
These figures cover 279 flights between July 2025 and June 2026. Beyond the headline rate, 19.0% 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 6407 flies
OO 6407 flies ASE to DFW without a single fixed slot. Its most common scheduled departure was 12:39, used on 54 of 279 flights, with 12:16 (47 flights) and 12:25 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 12:3954 flights19.4%
- Departs 12:1647 flights16.8%
- Departs 12:2545 flights16.1%
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 12:39 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 6407 runs 18 points worse at 61.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
OO 6407 next to ASE to DFW
Every carrier on ASE to DFW combined arrived on time 65.4% of the time across 1,185 flights, so OO 6407 is 4 points behind it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 18 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 6407thin sample | 279 | 61.2% | 114 min | 5.38% | D− |
| All SkyWest Airlines on ASE–DFW | 1,185 | 65.4% | 114 min | 8.19% | C− |
| All carriers on ASE–DFW | 1,185 | 65.4% | 114 min | 8.19% | C− |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 6407 quarter by quarter
OO 6407 did not run the same all year. Its best quarter was Oct–Dec 2025 at 71.6% on time and its weakest Jan–Mar 2026 at 45.1%, a swing of 26 points on roughly 93 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 flights66.7%
- Oct–Dec 202591 flights71.6%
- Jan–Mar 202690 flights45.1%
- Apr–Jun 20266 flights—
Scale runs 35% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, OO 6407 did best on Wednesday at 73.7% on time and worst on Saturday at 52.6%. Each day rests on about 40 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 6407 runs late
One category carries most of the weight here. Extreme weather accounts for 55% of the 12,000 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.
- 55%Extreme weather
- 27%Carrier
- 10%Late-arriving aircraft
- 8%National Airspace System
- 1%Security
Extreme weather accounts for 55% 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 8.8 times the usual weather exposure. The split is drawn from 11,607 delay minutes reported on OO 6407.
Cancellations run at 5.38%, 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. 19.0% 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.
The 701 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 279 flights under OO 6407 in the data flew ASE to DFW. 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. 279 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 6407
For a booking, the cancellation rate is the figure to plan around on OO 6407: 5.38% of its 279 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 DFW, every carrier and departure
- DFW to ASE, the return direction
- Dallas/Fort Worth International (DFW) 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
- How often a connection fails at the major US hubs
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.