Flight number record
OO 3704
SkyWest Airlines · Los Angeles to Aspen
- Route
- LAX → ASE
- Departs
- 09:30
- Flights
- 320
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3704, 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 3704 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 320 flights, with a median arrival 12 minutes early.
Set against the rest of the country, OO 3704's record is 7 points better than the US average of 77.3%. That gap is worth roughly 70 fewer late arrivals for every thousand flights.
Key figures
On time
84.3%
Arrivals under 15 minutes late, of 312 completed flights
Avg delay
88 min
Across delayed arrivals only, not all flights
Cancelled
0.31%
National rate is 1.89%
1 hour+ late
7.7%
National rate is 8.3%
These figures cover 320 flights between September 2025 and August 2026. The median arrival is 12 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 3704 flies
OO 3704 flies LAX to ASE without a single fixed slot. Its most common scheduled departure was 09:30, used on 72 of 320 flights, with 14:45 (68 flights) and 17:12 (57 flights) next.
- Departs 09:3072 flights22.5%
- Departs 14:4568 flights21.3%
- Departs 17:1257 flights17.8%
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 09:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 3704 runs level with that at 84.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 3704 next to LAX to ASE
Every carrier on LAX to ASE combined arrived on time 77.9% of the time across 1,226 flights, so OO 3704 is 6 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3704thin sample | 320 | 84.3% | 88 min | 0.31% | B+ |
| All SkyWest Airlines on LAX–ASE | 1,226 | 77.9% | 93 min | 2.45% | B |
| All carriers on LAX–ASE | 1,226 | 77.9% | 93 min | 2.45% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3704 quarter by quarter
OO 3704 did not run the same all year. Its best quarter was Oct–Dec 2025 at 89.6% on time and its weakest Jan–Mar 2026 at 75.9%, a swing of 14 points on roughly 80 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 flights—
- Oct–Dec 202579 flights89.6%
- Jan–Mar 202686 flights75.9%
- Apr–Jun 202663 flights88.7%
- Jul–Sep 202662 flights83.6%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3704 ranged from 80.4% on Thursday to 91.3% on Tuesday. With about 46 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.
Arrival by arrival
How late OO 3704 runs when it is late
OO 3704 often beats the schedule: 130 of 312 completed flights, 42%, arrived 15 minutes or more early. The 49 late arrivals split 15 under half an hour, 10 between 30 and 60 minutes, and 24 an hour or more.
- 15+ min early130 flights41.7%
- Within 15 min133 flights42.6%
- 15–29 min late15 flights4.8%
- 30–59 min late10 flights3.2%
- 1–2 hours late14 flights4.5%
- 2+ hours late10 flights3.2%
Scale runs 0% to 100%.
Share of 312 completed flights by arrival against schedule.
5 of 41 late departures made up the time and arrived on time, 12% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for OO 3704
The latest arrival of the period was on 17 June 2026, 13 hours 56 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 June 2026 | 13 hours 56 minutes | Carrier |
| 17 February 2026 | 4 hours 20 minutes | Carrier |
| 4 October 2025 | 3 hours 40 minutes | Carrier |
| 25 March 2026 | 3 hours 36 minutes | Carrier |
| 12 February 2026 | 3 hours 17 minutes | National Airspace System |
Delay causes
Why OO 3704 runs late
Carrier accounts for 75% of the 4,298 delay minutes carriers reported here, and the remaining four split what is left.
- 75%Carrier
- 19%National Airspace System
- 6%Extreme weather
The largest share of delay minutes, 75%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,219 of the 4,298 delay minutes reported here. The split is drawn from 4,298 delay minutes reported on OO 3704.
Cancellations are rare at 0.31%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
7.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 737 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.
The same number turns up on two other city pairs in the data, including BZN to LAX (16) and LAX to BZN (16), but none flew often enough under OO 3704 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to ASE only.
One caution: this is a thin sample. 320 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 3704
For a booking, read OO 3704 as 84.3% on time with 0.31% cancelled over 320 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to ASE, every carrier and departure
- ASE to LAX, the return direction
- Los Angeles International (LAX) 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
- Worst months to fly in the US, ranked by the data
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.