Flight profile · Alaska Airlines
AS10
Portland (PDX) to Washington (DCA) · scheduled 8:00 AM – 4:00 PM
How AS10 performs
1,121 operations, July 2023 – July 2026.
AS10’s scheduled departure has moved during the period FlyerIntel has on file: it typically left around 9:30 AM earlier on, and around 8:00 AM more recently — a 90-minute shift, not the few minutes of day-to-day rounding every published schedule carries. Confirm the current departure time before booking around an older listing.
Source: US DOT Bureau of Transportation Statistics · 1,121 operations, July 2023 – July 2026 · If AS10 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where AS10 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 AS10 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 |
|---|---|---|---|---|---|
| AS10 | 80.7% | 0.36% | -6 min | 3.2% | 1,121 |
| Alaska Airlines on PDX → DCA | 80.7% | 0.36% | -6 min | 3.2% | 1,121 |
| All PDX → DCA flights | 80.7% | 0.36% | -6 min | 3.2% | 1,121 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why AS10 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for AS10 on PDX → DCA. 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 AS10 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, AS10 pushed back an average of 16 minutes late; when it came in on time or early, an average of 2 minutes late.
Each departure is matched to the flight the same aircraft flew into PDX just before it, using the tail number in the DOT file, 937 of 1,117 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 | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| AS10 | 14% | 30% | 11% |
| Network, same turn | 23% | 40% | 9% |
The schedule leaves a long gap on the ground, which gives a late aircraft room to catch up before this flight pushes back.
The network row is every flight with a scheduled turn of 90 minutes to 3 hours. How often AS10’s aircraft landed 15 or more minutes late is lower than the network’s and, once the aircraft was late, how often AS10 left 15 or more minutes late is lower than the network’s.
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 PDX late, does that still matter by the time it reaches DCA?
AS10 pushes back an average of 4.0 minutes late and reaches the gate at DCA an average of 0.5 minutes early. The 4.5 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. Its 15.5 minutes on the taxiways at PDX is about what any departure from the airport in that hour spends.
On arrival at DCA, AS10 spends 10.7 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 3.1 minutes longer than a typical DCA arrival (7.6 min).
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 DCA. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 9,246 departures from PDX scheduled in the clock hour AS10 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at DCA (435,126 flights), not just AS10’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves PDX
Part of any flight’s record belongs to the clock rather than to the flight. AS10 has one departure time, so this is what that time is worth.
On-time arrival rate. 9,246 departures from PDX are scheduled in the 8 AM–9 AM hour over the period, against 187,633 across the whole day.
AS10 is scheduled out of PDX at 8:00 AM, in the 8 AM–9 AM bank. Departures from PDX in that hour arrive on time 86.9% of the time against 83.2% across the airport’s whole day — the slot alone is worth 3.7 points better before anything about this particular flight is considered.
The two airport figures cover every departure from PDX 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.
By day of week
Does AS10 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 7.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
29 min late
against a median of 6 min early
Percentiles over 1,121 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Data and methodology
Calculated by FlyerIntel from 1,121 records of AS10 operating PDX → DCA, 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