Flight number record
OO 3824
SkyWest Airlines · Seattle to Spokane
- Route
- SEA → GEG
- Departs
- 09:25
- Flights
- 255
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3824, 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 3824 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 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 255 flights, with a median arrival 11 minutes early.
Set against the rest of the country, OO 3824's record is 12 points better than the US average of 77.3%. That gap is worth roughly 116 fewer late arrivals for every thousand flights.
Key figures
On time
88.9%
Arrivals under 15 minutes late, of 253 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
0.78%
National rate is 1.89%
1 hour+ late
4.7%
National rate is 8.3%
These figures cover 255 flights between September 2025 and August 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.
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Schedule
When OO 3824 flies
OO 3824 flies SEA to GEG without a single fixed slot. Its most common scheduled departure was 09:25, used on 51 of 255 flights, with 08:55 (31 flights) and 09:20 (30 flights) next.
- Departs 09:2551 flights20.0%
- Departs 08:5531 flights12.2%
- Departs 09:2030 flights11.8%
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 09:25 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 3824 runs 5 points better at 88.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 3824 next to SEA to GEG
Every carrier on SEA to GEG combined arrived on time 83.1% of the time across 4,956 flights, so OO 3824 is 6 points ahead of it. SkyWest flew 2,869 flights on the same city pair under all its flight numbers, including this one, and those ran 87.6% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3824thin sample | 255 | 88.9% | 68 min | 0.78% | A+ |
| All SkyWest Airlines on SEA–GEG | 2,869 | 87.6% | 60 min | 1.12% | A |
| All carriers on SEA–GEG | 4,956 | 83.1% | 56 min | 0.93% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3824 quarter by quarter
Quarter by quarter OO 3824 held fairly steady: 86.4% in Jan–Mar 2026, 93.4% in Apr–Jun 2026 and 85.5% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202512 flights—
- Jan–Mar 202690 flights86.4%
- Apr–Jun 202691 flights93.4%
- Jul–Sep 202662 flights85.5%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3824 did best on Friday at 100.0% on time and worst on Thursday at 75.0%. Each day rests on about 36 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3824 runs when it is late
OO 3824 often beats the schedule: 90 of 253 completed flights, 36%, arrived 15 minutes or more early. The 28 late arrivals split 7 under half an hour, 9 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early90 flights35.6%
- Within 15 min135 flights53.4%
- 15–29 min late7 flights2.8%
- 30–59 min late9 flights3.6%
- 1–2 hours late8 flights3.2%
- 2+ hours late4 flights1.6%
Scale runs 0% to 100%.
Share of 253 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 27 departures that left 15 minutes late or more, only 2 made it up before arrival. Only 3 left on time and still arrived late.
The worst days
Worst days for OO 3824
The latest arrival of the period was on 3 February 2026, 3 hours 12 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 February 2026 | 3 hours 12 minutes | Extreme weather |
| 5 February 2026 | 2 hours 58 minutes | Extreme weather |
| 5 July 2026 | 2 hours 51 minutes | Carrier |
| 21 April 2026 | 2 hours 48 minutes | Carrier |
| 7 May 2026 | 1 hour 36 minutes | Carrier |
Delay causes
Why OO 3824 runs late
Carrier accounts for 51% of the 1,903 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Carrier
- 42%Extreme weather
- 6%National Airspace System
Extreme weather accounts for 42% 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 7.0 times the usual weather exposure. The split is drawn from 1,903 delay minutes reported on OO 3824.
Cancellations are rare at 0.78%, 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
Badly late arrivals are rare here: only 4.7% 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.
OO 3824 is not only a SEA to GEG flight. It also flew GEG to SEA (255 flights, 88.1% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 255 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| GEG to SEAthin sample | 255 | 88.1% | 62 min | 0.78% | A+ |
What to do with this
Booking OO 3824
For a booking, OO 3824 has one of the better records a US domestic flight can show: 88.9% on time and 0.78% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SEA to GEG, every carrier and departure
- GEG to SEA, the return direction
- SkyWest Airlines 3830 on the same route95.3%
- SkyWest Airlines 4145 on the same route85.9%
- SkyWest Airlines 3832 on the same route86.4%
- Seattle-Tacoma International (SEA) 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
- Worst months to fly in the US, ranked by the data
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.