Flight number record
OO 4674
SkyWest Airlines · Denver to Rapid City
- Route
- DEN → RAP
- Departs
- 10:05
- Flights
- 359
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4674, 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 4674 lands a B, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That rests on 359 flights, with a median arrival 3 minutes early.
Key figures
On time
79.6%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
53 min
Across delayed arrivals only, not all flights
Cancelled
1.39%
National rate is 1.89%
1 hour+ late
5.7%
National rate is 8.3%
These figures cover 359 flights between September 2025 and August 2026. The median arrival is 3 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 4674 flies
OO 4674 flies DEN to RAP without a single fixed slot. Its most common scheduled departure was 10:05, used on 103 of 359 flights, with 09:50 (57 flights) and 09:45 (37 flights) next.
- Departs 10:05103 flights28.7%
- Departs 09:5057 flights15.9%
- Departs 09:4537 flights10.3%
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 10:05 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 4674 runs 4 points worse at 79.6%. 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 4674 next to DEN to RAP
Every carrier on DEN to RAP combined arrived on time 77.7% of the time across 2,844 flights, so OO 4674 is 2 points ahead of it. SkyWest flew 2,081 flights on the same city pair under all its flight numbers, including this one, and those ran 78.4% on time. Across its whole network SkyWest Airlines managed 78.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4674thin sample | 359 | 79.6% | 53 min | 1.39% | B |
| All SkyWest Airlines on DEN–RAP | 2,081 | 78.4% | 80 min | 1.25% | B |
| All carriers on DEN–RAP | 2,844 | 77.7% | 78 min | 0.95% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4674 quarter by quarter
OO 4674 did not run the same all year. Its best quarter was Jan–Mar 2026 at 84.5% on time and its weakest Jul–Sep 2026 at 64.5%, a swing of 20 points on roughly 90 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 202529 flights—
- Oct–Dec 202588 flights83.0%
- Jan–Mar 202689 flights84.5%
- Apr–Jun 202691 flights80.0%
- Jul–Sep 202662 flights64.5%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4674 did best on Tuesday at 86.5% on time and worst on Friday at 69.4%. Each day rests on about 51 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 4674 runs when it is late
The 72 late arrivals split 30 under half an hour, 22 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early67 flights19.0%
- Within 15 min214 flights60.6%
- 15–29 min late30 flights8.5%
- 30–59 min late22 flights6.2%
- 1–2 hours late14 flights4.0%
- 2+ hours late6 flights1.7%
Scale runs 0% to 100%.
Share of 353 completed flights by arrival against schedule.
8 of 56 late departures made up the time and arrived on time, 14% of them. In the other direction, 24 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at RAP.
The worst days
Worst days for OO 4674
The latest arrival of the period was on 6 March 2026, 5 hours 22 minutes behind schedule; most of its delay minutes were filed as extreme weather. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 5 hours 22 minutes | Extreme weather |
| 22 May 2026 | 4 hours 17 minutes | Carrier |
| 18 March 2026 | 2 hours 49 minutes | Carrier |
| 15 August 2026 | 2 hours 25 minutes | Carrier |
| 2 June 2026 | 2 hours 15 minutes | Carrier |
Delay causes
Why OO 4674 runs late
Carrier accounts for 65% of the 3,840 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 17%Late-arriving aircraft
- 11%National Airspace System
- 7%Extreme weather
The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,484 of the 3,840 delay minutes reported here. The split is drawn from 3,840 delay minutes reported on OO 4674.
Cancellations sit at 1.39% against a national 1.89%, which is ordinary. Diversions add another 0.28%.
Connections and routes
What a delay on this flight costs
5.7% 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 roughly 55 minutes, which a normal layover absorbs.
The same number turns up on one other city pair in the data, including DEN to GRR (1), but none flew often enough under OO 4674 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to RAP only.
One caution: this is a thin sample. 359 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 4674
For a booking, read OO 4674 as 79.6% on time with 1.39% cancelled over 359 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to RAP, every carrier and departure
- RAP to DEN, the return direction
- SkyWest Airlines 5303 on the same route79.0%
- SkyWest Airlines 5556 on the same route83.3%
- SkyWest Airlines 5265 on the same route79.3%
- 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.