Flight profile · SkyWest Airlines
OO3913
Seattle (SEA) to Portland (PDX) · scheduled 5:50 PM – 6:52 PM
How OO3913 performs
770 operations, July 2023 – July 2026.
OO3913 arrived on time 84.5% of the time, against 80.7% for all SEA → PDX flights, so this departure is 3.8 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 770 operations, July 2023 – July 2026 · If OO3913 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where OO3913 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
Ask for the position of OO3913 right now, if receivers on the ground are hearing it. Nothing is requested until you press the button.
Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| OO3913 | 84.5% | 0.13% | -8 min | 4.4% | 770 |
| SkyWest Airlines on SEA → PDX | 84.9% | 0.45% | -6 min | 3.9% | 9,950 |
| All SEA → PDX flights | 80.7% | 0.60% | -4 min | 4.0% | 16,049 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why OO3913 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO3913 on SEA → PDX. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies OO3913 comes in late, and what that does to the departure.
The aircraft flying OO3913 came in 15 or more minutes late on 16% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Each departure is matched to the flight the same aircraft flew into SEA just before it, using the tail number in the DOT file, 745 of 769 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late |
|---|---|
| OO3913 | 16% |
| Network, same turn | 18% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 45 to 59 minutes. How often OO3913’s aircraft landed 15 or more minutes late is about the same as the network’s. There are not enough departures in both groups to compare how it left.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
From pushback to gate
When it leaves SEA late, does that still matter by the time it reaches PDX?
OO3913 pushes back an average of 5.4 minutes late and reaches the gate at PDX an average of 0.5 minutes late. The 4.9 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 22.8 minutes on the taxiways at SEA, 2.1 minutes longer than a typical SEA departure in the same hour.
On arrival at PDX, OO3913 spends 4.5 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is about what any arrival at PDX spends on the ground before reaching the gate.
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached PDX. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 34,772 departures from SEA scheduled in the clock hour OO3913 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at PDX (187,629 flights), not just OO3913’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves SEA
Part of any flight’s record belongs to the clock rather than to the flight. OO3913 has one departure time, so this is what that time is worth.
On-time arrival rate. 34,772 departures from SEA are scheduled in the 5 PM–6 PM hour over the period, against 510,205 across the whole day.
OO3913 is scheduled out of SEA at 5:50 PM, in the 5 PM–6 PM bank. Departures from SEA in that hour arrive on time 75.6% of the time against 79.1% across the airport’s whole day — the slot alone is worth 3.5 points worse before anything about this particular flight is considered.
The two airport figures cover every departure from SEA to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Hours below 120 departures are not scored.
Other routes OO3913 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| PDX→SEA Portland to Seattle | March 10, 2024 – June 5, 2026 | 605 | 82.5% |
| DTW→MSN Detroit to Madison | May 10, 2025 – June 7, 2025 | 4 | — |
| DTW→MQT Detroit to Gwinn | April 9, 2024 – May 6, 2024 | 28 | — |
| MQT→DTW Gwinn to Detroit | April 9, 2024 – May 6, 2024 | 28 | — |
| LGA→ORD New York to Chicago | December 16, 2023 – January 7, 2024 | 9 | — |
| ORD→LGA Chicago to New York | December 16, 2023 – January 7, 2024 | 9 | — |
| LAX→SMF Los Angeles to Sacramento | September 5, 2023 – December 15, 2023 | 71 | — |
| SMF→LAX Sacramento to Los Angeles | September 5, 2023 – December 15, 2023 | 62 | — |
| COS→SLC Colorado Springs to Salt Lake City | October 28, 2023 – November 4, 2023 | 8 | — |
| DTW→RIC Detroit to Richmond | October 9–27, 2023 | 11 | — |
| RIC→DTW Richmond to Detroit | October 9–27, 2023 | 11 | — |
| MSP→RAP Minneapolis to Rapid City | September 4, 2023 | 1 | — |
| SLC→MKE Salt Lake City to Milwaukee | August 1, 2023 – September 3, 2023 | 34 | — |
Because the same number has served different journeys, the statistics above describe only the route OO3913 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
26 min late
against a median of 8 min early
Percentiles over 770 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO3953 | SkyWest Airlines | 91.8% | 12 min early | 943 |
| OO3913 this flight | SkyWest Airlines | 84.5% | 8 min early | 770 |
| OO3802 | SkyWest Airlines | 82.9% | 5 min early | 809 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. OO3913 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 770 records of OO3913 operating SEA → PDX, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed