Flight number record
OO 5030
SkyWest Airlines · Denver to Butte
- Route
- DEN → BTM
- Departs
- 20:20
- Flights
- 277
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5030, 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 5030 sits in the middle of the pack with a B+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 277 flights, with a median arrival 7 minutes early.
Key figures
On time
75.0%
Arrivals under 15 minutes late, of 276 completed flights
Avg delay
113 min
Across delayed arrivals only, not all flights
Cancelled
0.36%
National rate is 1.81%
1 hour+ late
9.4%
National rate is 8.1%
These figures cover 277 flights between July 2025 and June 2026. Beyond the headline rate, 9.4% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When OO 5030 flies
OO 5030 flies DEN to BTM without a single fixed slot. Its most common scheduled departure was 20:20, used on 163 of 277 flights, with 20:29 (41 flights) and 20:35 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 20:20163 flights58.8%
- Departs 20:2941 flights14.8%
- Departs 20:3537 flights13.4%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 20:20 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 5030 runs 5 points better at 75.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
OO 5030 next to DEN to BTM
Every carrier on DEN to BTM combined arrived on time 73.3% of the time across 365 flights, so OO 5030 is 2 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5030thin sample | 277 | 75.0% | 113 min | 0.36% | B+ |
| All SkyWest Airlines on DEN–BTM | 365 | 73.3% | 111 min | 1.64% | C |
| All carriers on DEN–BTM | 365 | 73.3% | 111 min | 1.64% | C |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 5030 quarter by quarter
OO 5030 did not run the same all year. Its best quarter was Oct–Dec 2025 at 84.4% on time and its weakest Apr–Jun 2026 at 58.2%, a swing of 26 points on roughly 92 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 20256 flights—
- Oct–Dec 202590 flights84.4%
- Jan–Mar 202690 flights80.9%
- Apr–Jun 202691 flights58.2%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5030 did best on Tuesday at 90.0% on time and worst on Thursday at 65.8%. Each day rests on about 40 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 5030 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 7,778 reported delay minutes.
- 41%Late-arriving aircraft
- 36%Carrier
- 15%Extreme weather
- 8%National Airspace System
Extreme weather accounts for 15% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 7,778 delay minutes reported on OO 5030.
Cancellations are rare at 0.36%, below the national 1.81% 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.4% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 578 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on seven other city pairs in the data, including BTM to DEN (49), DEN to ATY (37) and SGU to DEN (31), but none flew often enough under OO 5030 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to BTM only.
One caution: this is a thin sample. 277 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 5030
For a booking, read OO 5030 as 75.0% on time with 0.36% cancelled over 277 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.