Flight number record
OO 3830
SkyWest Airlines · Spokane to Seattle
- Route
- GEG → SEA
- Departs
- 09:20
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3830, 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 3830 lands a B+, 4 points better than the national rate of 77.3%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 365 flights, with a median arrival 4 minutes early.
Set against the rest of the country, OO 3830's record is 4 points better than the US average of 77.3%. That gap is worth roughly 42 fewer late arrivals for every thousand flights.
Key figures
On time
81.5%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.89%
1 hour+ late
4.1%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 4 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When OO 3830 flies
OO 3830 flies GEG to SEA without a single fixed slot. Its most common scheduled departure was 09:20, used on 91 of 365 flights, with 09:25 (67 flights) and 09:30 (49 flights) next.
- Departs 09:2091 flights24.9%
- Departs 09:2567 flights18.4%
- Departs 09:3049 flights13.4%
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 09:20 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 3830 runs 2 points worse at 81.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
OO 3830 next to GEG to SEA
Every carrier on GEG to SEA combined arrived on time 85.7% of the time across 4,927 flights, so OO 3830 is 4 points behind it. SkyWest flew 2,841 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 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3830 | 365 | 81.5% | 61 min | 0.82% | B+ |
| All SkyWest Airlines on GEG–SEA | 2,841 | 87.6% | 68 min | 1.09% | A |
| All carriers on GEG–SEA | 4,927 | 85.7% | 62 min | 1.01% | A |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3830 quarter by quarter
OO 3830 did not run the same all year. Its best quarter was Jul–Sep 2025 at 86.7% on time and its weakest Jul–Sep 2026 at 72.6%, a swing of 14 points on roughly 73 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 flights86.7%
- Oct–Dec 202592 flights82.4%
- Jan–Mar 202690 flights83.0%
- Apr–Jun 202691 flights83.5%
- Jul–Sep 202662 flights72.6%
Scale runs 65% to 90%.
By weekday, OO 3830 did best on Sunday at 88.2% on time and worst on Thursday at 65.4%. Each day rests on about 52 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3830 runs when it is late
The 67 late arrivals split 31 under half an hour, 21 between 30 and 60 minutes, and 15 an hour or more.
- 15+ min early78 flights21.5%
- Within 15 min217 flights59.9%
- 15–29 min late31 flights8.6%
- 30–59 min late21 flights5.8%
- 1–2 hours late7 flights1.9%
- 2+ hours late8 flights2.2%
Scale runs 0% to 100%.
Share of 362 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 45 departures that left 15 minutes late or more, only 5 made it up before arrival. In the other direction, 27 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SEA.
The worst days
Worst days for OO 3830
The latest arrival of the period was on 5 February 2026, 6 hours 59 minutes behind schedule; most of its delay minutes were filed as extreme weather. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 February 2026 | 6 hours 59 minutes | Extreme weather |
| 16 July 2026 | 6 hours 5 minutes | Extreme weather |
| 30 October 2025 | 4 hours 54 minutes | Extreme weather |
| 3 February 2026 | 4 hours 29 minutes | Extreme weather |
| 29 January 2026 | 3 hours 20 minutes | Extreme weather |
Delay causes
Why OO 3830 runs late
Extreme weather accounts for 56% of the 4,086 delay minutes carriers reported here, and the remaining four split what is left.
- 56%Extreme weather
- 32%Carrier
- 12%National Airspace System
Extreme weather accounts for 56% 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 9.3 times the usual weather exposure. The split is drawn from 4,086 delay minutes reported on OO 3830.
Cancellations are rare at 0.82%, 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 4.1% 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 3830 is not only a GEG to SEA flight. It also flew SEA to GEG (365 flights, 95.3% 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. 365 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 |
|---|---|---|---|---|---|
| SEA to GEG | 365 | 95.3% | 108 min | 0.82% | A+ |
What to do with this
Booking OO 3830
For a booking, read OO 3830 as 81.5% on time with 0.82% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- GEG to SEA, every carrier and departure
- SEA to GEG, the return direction
- SkyWest Airlines 3832 on the same route88.4%
- SkyWest Airlines 3824 on the same route88.1%
- 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.