Flight number record
OO 3448
SkyWest Airlines · Bellingham to Seattle
- Route
- BLI → SEA
- Departs
- 05:20
- Flights
- 279
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3448, 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 3448 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 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 35 minutes. That rests on 279 flights, with a median arrival 7 minutes early.
Set against the rest of the country, OO 3448's record is 14 points better than the US average of 77.3%. That gap is worth roughly 138 fewer late arrivals for every thousand flights.
Key figures
On time
91.1%
Arrivals under 15 minutes late, of 271 completed flights
Avg delay
34 min
Across delayed arrivals only, not all flights
Cancelled
2.51%
National rate is 1.89%
1 hour+ late
0.7%
National rate is 8.3%
These figures cover 279 flights between September 2025 and August 2026. The median arrival is 7 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 3448 flies
OO 3448 flies BLI to SEA without a single fixed slot. Its most common scheduled departure was 05:20, used on 125 of 279 flights, with 05:15 (70 flights) and 06:00 (70 flights) next.
- Departs 05:20125 flights44.8%
- Departs 05:1570 flights25.1%
- Departs 06:0070 flights25.1%
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 05:20 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 3448 runs level with that at 91.1%. 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 3448 next to BLI to SEA
Every carrier on BLI to SEA combined arrived on time 81.1% of the time across 1,186 flights, so OO 3448 is 10 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3448thin sample | 279 | 91.1% | 34 min | 2.51% | A |
| All SkyWest Airlines on BLI–SEA | 1,186 | 81.1% | 54 min | 2.11% | B |
| All carriers on BLI–SEA | 1,186 | 81.1% | 54 min | 2.11% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3448 quarter by quarter
OO 3448 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jul–Sep 2026 at 82.3%, a swing of 18 points on roughly 56 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 flights100.0%
- Oct–Dec 202568 flights90.5%
- Jan–Mar 202656 flights88.7%
- Apr–Jun 202663 flights98.4%
- Jul–Sep 202662 flights82.3%
Scale runs 75% to 100%.
By weekday, OO 3448 did best on Saturday at 97.4% on time and worst on Friday at 84.2%. Each day rests on about 40 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3448 runs when it is late
OO 3448 often beats the schedule: 80 of 271 completed flights, 30%, arrived 15 minutes or more early. Most of the lateness is short. 16 of the 24 late arrivals were under half an hour behind, and 2 reached an hour or more.
- 15+ min early80 flights29.5%
- Within 15 min167 flights61.6%
- 15–29 min late16 flights5.9%
- 30–59 min late6 flights2.2%
- 1–2 hours late1 flights0.4%
- 2+ hours late1 flights0.4%
Scale runs 0% to 100%.
Share of 271 completed flights by arrival against schedule.
Only 8 of 271 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for OO 3448
The latest arrival of the period was on 23 July 2026, 2 hours 52 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 July 2026 | 2 hours 52 minutes | Late-arriving aircraft |
| 19 December 2025 | 1 hour 28 minutes | Carrier |
| 18 December 2025 | 57 minutes | Carrier |
| 7 August 2026 | 46 minutes | Carrier |
| 27 November 2025 | 42 minutes | Carrier |
Delay causes
Why OO 3448 runs late
Carrier accounts for 70% of the 823 delay minutes carriers reported here, and the remaining four split what is left.
- 70%Carrier
- 20%Late-arriving aircraft
- 10%National Airspace System
The largest share of delay minutes, 70%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 573 of the 823 delay minutes reported here. The split is drawn from 823 delay minutes reported on OO 3448.
Cancellations run at 2.51%, against 1.89% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 0.7% 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.
The same number turns up on one other city pair in the data, including STS to BUR (28), but none flew often enough under OO 3448 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BLI to SEA only.
One caution: this is a thin sample. 279 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 3448
For a booking, the cancellation rate is the figure to plan around on OO 3448: 2.51% of its 279 scheduled flights did not operate. A late arrival costs about 35 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- BLI to SEA, every carrier and departure
- SEA to BLI, the return direction
- SkyWest Airlines 3294 on the same route76.6%
- 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
- What a cancellation rate actually tells you (and what it hides)
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.