Flight number record
OO 4694
SkyWest Airlines · Bismarck to Denver
- Route
- BIS → DEN
- Departs
- 13:45
- Flights
- 362
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4694, 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 4694 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 362 flights, with a median arrival 17 minutes early.
Set against the rest of the country, OO 4694's record is 9 points better than the US average of 77.3%. That gap is worth roughly 93 fewer late arrivals for every thousand flights.
Key figures
On time
86.6%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
95 min
Across delayed arrivals only, not all flights
Cancelled
0.83%
National rate is 1.89%
1 hour+ late
6.7%
National rate is 8.3%
These figures cover 362 flights between September 2025 and August 2026. The median arrival is 17 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 4694 flies
OO 4694 flies BIS to DEN without a single fixed slot. Its most common scheduled departure was 13:45, used on 113 of 362 flights, with 13:55 (44 flights) and 13:35 (37 flights) next.
- Departs 13:45113 flights31.2%
- Departs 13:5544 flights12.2%
- Departs 13:3537 flights10.2%
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 13:45 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 4694 runs 8 points better at 86.6%. 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 4694 next to BIS to DEN
Every carrier on BIS to DEN combined arrived on time 79.9% of the time across 1,433 flights, so OO 4694 is 7 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4694thin sample | 362 | 86.6% | 95 min | 0.83% | A+ |
| All SkyWest Airlines on BIS–DEN | 1,433 | 79.9% | 107 min | 0.70% | B+ |
| All carriers on BIS–DEN | 1,433 | 79.9% | 107 min | 0.70% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4694 quarter by quarter
OO 4694 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jan–Mar 2026 at 83.0%, a swing of 10 points on roughly 72 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 flights93.3%
- Oct–Dec 202591 flights84.4%
- Jan–Mar 202690 flights83.0%
- Apr–Jun 202690 flights89.9%
- Jul–Sep 202661 flights86.7%
Scale runs 75% to 100%.
By weekday, OO 4694 did best on Wednesday at 94.2% on time and worst on Sunday at 80.8%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 4694 runs when it is late
OO 4694 often beats the schedule: 201 of 357 completed flights, 56%, arrived 15 minutes or more early. The 48 late arrivals split 12 under half an hour, 12 between 30 and 60 minutes, and 24 an hour or more.
- 15+ min early201 flights56.3%
- Within 15 min108 flights30.3%
- 15–29 min late12 flights3.4%
- 30–59 min late12 flights3.4%
- 1–2 hours late15 flights4.2%
- 2+ hours late9 flights2.5%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
14 of 55 late departures made up the time and arrived on time, 25% of them. Only 7 left on time and still arrived late.
The worst days
Worst days for OO 4694
The latest arrival of the period was on 5 January 2026, 6 hours 57 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 |
|---|---|---|
| 5 January 2026 | 6 hours 57 minutes | Carrier |
| 25 December 2025 | 6 hours 35 minutes | Extreme weather |
| 28 April 2026 | 6 hours 28 minutes | Late-arriving aircraft |
| 27 June 2026 | 6 hours 27 minutes | Carrier |
| 17 January 2026 | 4 hours 40 minutes | Carrier |
Delay causes
Why OO 4694 runs late
Carrier accounts for 42% of the 4,566 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Carrier
- 36%Late-arriving aircraft
- 13%National Airspace System
- 9%Extreme weather
36% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,566 reported delay minutes here, that single category outweighs weather by 4 to one. The split is drawn from 4,566 delay minutes reported on OO 4694.
Cancellations are rare at 0.83%, 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
6.7% 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 an hour and a half, which a normal layover absorbs.
The 516 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.
The same number turns up on three other city pairs in the data, including ORD to PSP (1), ORD to PIA (1) and SFO to TUS (1), but none flew often enough under OO 4694 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BIS to DEN only.
One caution: this is a thin sample. 362 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 4694
For a booking, OO 4694 has one of the better records a US domestic flight can show: 86.6% on time and 0.83% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- BIS to DEN, every carrier and departure
- DEN to BIS, the return direction
- SkyWest Airlines 4738 on the same route88.9%
- SkyWest Airlines 4710 on the same route78.2%
- 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.