Flight number record
OO 5303
SkyWest Airlines · Denver to Rapid City
- Route
- DEN → RAP
- Departs
- 21:05
- Flights
- 294
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5303, 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 5303 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 an hour and a half on average. That rests on 294 flights, with a median arrival 10 minutes early.
Key figures
On time
79.0%
Arrivals under 15 minutes late, of 291 completed flights
Avg delay
92 min
Across delayed arrivals only, not all flights
Cancelled
0.68%
National rate is 1.89%
1 hour+ late
8.6%
National rate is 8.3%
These figures cover 294 flights between September 2025 and August 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5303 flies
OO 5303 flies DEN to RAP without a single fixed slot. Its most common scheduled departure was 21:05, used on 44 of 294 flights, with 20:30 (39 flights) and 21:04 (37 flights) next.
- Departs 21:0544 flights15.0%
- Departs 20:3039 flights13.3%
- Departs 21:0437 flights12.6%
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 21:05 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and OO 5303 runs 9 points better at 79.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
OO 5303 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 5303 is about level with 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 5303thin sample | 294 | 79.0% | 92 min | 0.68% | 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 5303 quarter by quarter
OO 5303 did not run the same all year. Its best quarter was Oct–Dec 2025 at 94.4% on time and its weakest Apr–Jun 2026 at 73.5%, a swing of 21 points on roughly 98 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 202527 flights—
- Oct–Dec 202573 flights94.4%
- Jan–Mar 202689 flights80.9%
- Apr–Jun 202684 flights73.5%
- Jul–Sep 202621 flights—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5303 did best on Tuesday at 86.0% on time and worst on Sunday at 69.8%. Each day rests on about 42 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5303 runs when it is late
OO 5303 often beats the schedule: 110 of 291 completed flights, 38%, arrived 15 minutes or more early. The 61 late arrivals split 19 under half an hour, 17 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early110 flights37.8%
- Within 15 min120 flights41.2%
- 15–29 min late19 flights6.5%
- 30–59 min late17 flights5.8%
- 1–2 hours late12 flights4.1%
- 2+ hours late13 flights4.5%
Scale runs 0% to 100%.
Share of 291 completed flights by arrival against schedule.
11 of 58 late departures made up the time and arrived on time, 19% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for OO 5303
The latest arrival of the period was on 17 August 2026, 10 hours 4 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across August, February, October, June and May, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 August 2026 | 10 hours 4 minutes | Carrier |
| 23 February 2026 | 9 hours 51 minutes | Late-arriving aircraft |
| 3 October 2025 | 9 hours 47 minutes | Carrier |
| 24 June 2026 | 4 hours 35 minutes | Late-arriving aircraft |
| 29 May 2026 | 3 hours 35 minutes | National Airspace System |
Delay causes
Why OO 5303 runs late
Carrier accounts for 47% of the 5,600 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Carrier
- 28%Late-arriving aircraft
- 14%National Airspace System
- 11%Extreme weather
The largest share of delay minutes, 47%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,616 of the 5,600 delay minutes reported here. The split is drawn from 5,600 delay minutes reported on OO 5303.
Cancellations are rare at 0.68%, 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
8.6% 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 same number turns up on three other city pairs in the data, including ORD to GRR (44), ORD to GSO (16) and DEN to SUN (1), but none flew often enough under OO 5303 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. 294 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 5303
For a booking, read OO 5303 as 79.0% on time with 0.68% cancelled over 294 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 4674 on the same route79.6%
- 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
- The best time of day to fly, according to 7.05 million flight records
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.