Flight number record
OO 4629
SkyWest Airlines · Denver to Fargo
- Route
- DEN → FAR
- Departs
- 13:25
- Flights
- 363
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4629, 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 4629 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 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 363 flights, with a median arrival 11 minutes early.
Set against the rest of the country, OO 4629's record is 8 points better than the US average of 77.6%. That gap is worth roughly 81 fewer late arrivals for every thousand flights.
Key figures
On time
85.7%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
55 min
Across delayed arrivals only, not all flights
Cancelled
1.65%
National rate is 1.81%
1 hour+ late
4.2%
National rate is 8.1%
These figures cover 363 flights between July 2025 and June 2026. The median arrival is 11 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.
Schedule
When OO 4629 flies
OO 4629 flies DEN to FAR without a single fixed slot. Its most common scheduled departure was 13:25, used on 136 of 363 flights, with 13:30 (90 flights) and 13:31 (58 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 13:25136 flights37.5%
- Departs 13:3090 flights24.8%
- Departs 13:3158 flights16.0%
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 13:25 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 4629 runs 7 points better at 85.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
OO 4629 next to DEN to FAR
Every carrier on DEN to FAR combined arrived on time 77.7% of the time across 1,428 flights, so OO 4629 is 8 points ahead of it. SkyWest flew 881 flights on the same city pair under all its flight numbers, including this one, and those ran 78.1% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4629thin sample | 363 | 85.7% | 55 min | 1.65% | A |
| All SkyWest Airlines on DEN–FAR | 881 | 78.1% | 75 min | 1.36% | B |
| All carriers on DEN–FAR | 1,428 | 77.7% | 76 min | 0.91% | B+ |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 4629 quarter by quarter
OO 4629 did not run the same all year. Its best quarter was Jul–Sep 2025 at 92.4% on time and its weakest Jan–Mar 2026 at 75.6%, a swing of 17 points on roughly 91 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 202592 flights92.4%
- Oct–Dec 202590 flights84.3%
- Jan–Mar 202690 flights75.6%
- Apr–Jun 202691 flights90.0%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4629 did best on Tuesday at 94.2% on time and worst on Sunday at 80.0%. Each day rests on about 52 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 4629 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 2,825 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 46%Late-arriving aircraft
- 30%Carrier
- 22%National Airspace System
- 2%Extreme weather
46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,825 reported delay minutes here, that single category outweighs weather by 19 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,825 delay minutes reported on OO 4629.
Cancellations sit at 1.65% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.2% land an hour or more behind schedule, against 8.1% 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 627 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 one other city pair in the data, including DEN to FAT (1), but none flew often enough under OO 4629 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to FAR only.
One caution: this is a thin sample. 363 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 4629
For a booking, read OO 4629 as 85.7% on time with 1.65% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to FAR, every carrier and departure
- FAR to DEN, the return direction
- SkyWest Airlines 4688 on the same route78.4%
- 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.