Flight number record
OO 4696
SkyWest Airlines · Colorado Springs to Denver
- Route
- COS → DEN
- Departs
- 07:00
- Flights
- 313
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4696, 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 4696 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 313 flights, with a median arrival 15 minutes early.
Set against the rest of the country, OO 4696's record is 12 points better than the US average of 77.3%. That gap is worth roughly 124 fewer late arrivals for every thousand flights.
Key figures
On time
89.7%
Arrivals under 15 minutes late, of 311 completed flights
Avg delay
55 min
Across delayed arrivals only, not all flights
Cancelled
0.64%
National rate is 1.89%
1 hour+ late
2.6%
National rate is 8.3%
These figures cover 313 flights between September 2025 and August 2026. The median arrival is 15 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 4696 flies
OO 4696 flies COS to DEN without a single fixed slot. Its most common scheduled departure was 07:00, used on 198 of 313 flights, with 07:05 (83 flights) next.
- Departs 07:00198 flights63.3%
- Departs 07:0583 flights26.5%
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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 4696 runs level with that at 89.7%. 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 4696 next to COS to DEN
Every carrier on COS to DEN combined arrived on time 81.4% of the time across 4,989 flights, so OO 4696 is 8 points ahead of it. SkyWest flew 3,337 flights on the same city pair under all its flight numbers, including this one, and those ran 83.4% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4696thin sample | 313 | 89.7% | 55 min | 0.64% | A+ |
| All SkyWest Airlines on COS–DEN | 3,337 | 83.4% | 77 min | 1.53% | B |
| All carriers on COS–DEN | 4,989 | 81.4% | 72 min | 1.14% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4696 quarter by quarter
Quarter by quarter OO 4696 held fairly steady: 86.5% in Oct–Dec 2025, 88.5% in Jan–Mar 2026, 91.1% in Apr–Jun 2026 and 93.0% in Jul–Sep 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202525 flights—
- Oct–Dec 202552 flights86.5%
- Jan–Mar 202689 flights88.5%
- Apr–Jun 202690 flights91.1%
- Jul–Sep 202657 flights93.0%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4696 did best on Saturday at 93.9% on time and worst on Friday at 80.9%. Each day rests on about 45 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 4696 runs when it is late
OO 4696 often beats the schedule: 156 of 311 completed flights, 50%, arrived 15 minutes or more early. The 32 late arrivals split 14 under half an hour, 10 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early156 flights50.2%
- Within 15 min123 flights39.5%
- 15–29 min late14 flights4.5%
- 30–59 min late10 flights3.2%
- 1–2 hours late3 flights1.0%
- 2+ hours late5 flights1.6%
Scale runs 0% to 100%.
Share of 311 completed flights by arrival against schedule.
6 of 31 late departures made up the time and arrived on time, 19% of them. 7 flights left on time and still arrived late.
The worst days
Worst days for OO 4696
The latest arrival of the period was on 19 December 2025, 3 hours 28 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 December 2025 | 3 hours 28 minutes | Carrier |
| 2 April 2026 | 2 hours 38 minutes | Carrier |
| 21 May 2026 | 2 hours 21 minutes | Carrier |
| 24 October 2025 | 2 hours 20 minutes | Carrier |
| 18 January 2026 | 2 hours 15 minutes | Carrier |
Delay causes
Why OO 4696 runs late
Carrier accounts for 88% of the 1,761 delay minutes carriers reported here, and the remaining four split what is left.
- 88%Carrier
- 8%National Airspace System
- 2%Extreme weather
- 1%Late-arriving aircraft
The largest share of delay minutes, 88%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,554 of the 1,761 delay minutes reported here. The split is drawn from 1,761 delay minutes reported on OO 4696.
Cancellations are rare at 0.64%, 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
Badly late arrivals are rare here: only 2.6% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The same number turns up on five other city pairs in the data, including MLI to ORD (32), LAX to SLC (9) and BOI to DEN (3), but none flew often enough under OO 4696 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to COS to DEN only.
One caution: this is a thin sample. 313 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 4696
For a booking, OO 4696 has one of the better records a US domestic flight can show: 89.7% on time and 0.64% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- COS to DEN, every carrier and departure
- DEN to COS, the return direction
- SkyWest Airlines 5634 on the same route85.0%
- SkyWest Airlines 4675 on the same route83.5%
- SkyWest Airlines 5291 on the same route90.6%
- SkyWest Airlines 4719 on the same route67.7%
- 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
- 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.