Flight number record
OO 5742
SkyWest Airlines · Rapid City to Denver
- Route
- RAP → DEN
- Departs
- 12:35
- Flights
- 287
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5742, 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 5742 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 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 287 flights, with a median arrival 20 minutes early.
Set against the rest of the country, OO 5742's record is 13 points better than the US average of 77.3%. That gap is worth roughly 125 fewer late arrivals for every thousand flights.
Key figures
On time
89.8%
Arrivals under 15 minutes late, of 283 completed flights
Avg delay
113 min
Across delayed arrivals only, not all flights
Cancelled
1.05%
National rate is 1.89%
1 hour+ late
4.6%
National rate is 8.3%
These figures cover 287 flights between September 2025 and August 2026. The median arrival is 20 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 5742 flies
OO 5742 flies RAP to DEN without a single fixed slot. Its most common scheduled departure was 12:35, used on 77 of 287 flights, with 12:31 (36 flights) and 12:27 (36 flights) next.
- Departs 12:3577 flights26.8%
- Departs 12:3136 flights12.5%
- Departs 12:2736 flights12.5%
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 12:35 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 5742 runs 12 points better at 89.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 5742 next to RAP to DEN
Every carrier on RAP to DEN combined arrived on time 80.5% of the time across 2,844 flights, so OO 5742 is 9 points ahead of it. SkyWest flew 2,082 flights on the same city pair under all its flight numbers, including this one, and those ran 79.3% 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 5742thin sample | 287 | 89.8% | 113 min | 1.05% | A |
| All SkyWest Airlines on RAP–DEN | 2,082 | 79.3% | 94 min | 1.34% | B |
| All carriers on RAP–DEN | 2,844 | 80.5% | 90 min | 1.16% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5742 quarter by quarter
OO 5742 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jul–Sep 2026 at 78.0%, a swing of 22 points on roughly 57 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 flights100.0%
- Oct–Dec 202591 flights89.0%
- Jan–Mar 202663 flights96.7%
- Apr–Jun 202662 flights86.9%
- Jul–Sep 202641 flights78.0%
Scale runs 70% to 100%.
By weekday, OO 5742 did best on Monday at 97.5% on time and worst on Friday at 82.5%. Each day rests on about 41 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5742 runs when it is late
OO 5742 often beats the schedule: 190 of 283 completed flights, 67%, arrived 15 minutes or more early. The 29 late arrivals split 6 under half an hour, 10 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early190 flights67.1%
- Within 15 min64 flights22.6%
- 15–29 min late6 flights2.1%
- 30–59 min late10 flights3.5%
- 1–2 hours late6 flights2.1%
- 2+ hours late7 flights2.5%
Scale runs 0% to 100%.
Share of 283 completed flights by arrival against schedule.
10 of 37 late departures made up the time and arrived on time, 27% of them. Only 2 left on time and still arrived late.
The worst days
Worst days for OO 5742
The latest arrival of the period was on 4 June 2026, 8 hours 48 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 June 2026 | 8 hours 48 minutes | Carrier |
| 2 January 2026 | 8 hours 1 minute | Late-arriving aircraft |
| 12 June 2026 | 5 hours 43 minutes | Carrier |
| 22 May 2026 | 4 hours 41 minutes | Late-arriving aircraft |
| 7 November 2025 | 4 hours 30 minutes | Carrier |
Delay causes
Why OO 5742 runs late
Carrier accounts for 48% of the 3,278 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 41%Late-arriving aircraft
- 6%Extreme weather
- 5%National Airspace System
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,278 reported delay minutes here, that single category outweighs weather by 7 to one. The split is drawn from 3,278 delay minutes reported on OO 5742.
Cancellations sit at 1.05% against a national 1.89%, which is ordinary. Diversions add another 0.35%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.6% 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 three other city pairs in the data, including PIA to ORD (14), ORD to MEM (9) and DEN to AUS (1), but none flew often enough under OO 5742 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to RAP to DEN only.
One caution: this is a thin sample. 287 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 5742
For a booking, OO 5742 has one of the better records a US domestic flight can show: 89.8% on time and 1.05% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- RAP to DEN, every carrier and departure
- DEN to RAP, the return direction
- United Airlines 1767 on the same route85.0%
- SkyWest Airlines 5576 on the same route88.5%
- SkyWest Airlines 5884 on the same route76.8%
- SkyWest Airlines 5708 on the same route81.3%
- 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
- Why the first flight of the morning is statistically safest
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.