Flight profile · Alaska Airlines

AS278

Portland (PDX) to Los Angeles (LAX) · scheduled 5:40 PM – 8:15 PM

FlyerIntel does not track flights in the air. This page describes how AS278 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with Alaska Airlines.

How AS278 performs

603 operations, 2024-10-01 to 2026-06-30.

On-time arrivals
86.5%
520 of 601 completed
Cancellation rate
0.33%
2 cancelled
Median arrival delay
-5 min
Average 0.6 min
Severe delays
3.2%
Arrived 60+ minutes late
Delay when late
52 min
Average, when 15+ min late
Departure punctuality
85.5%
Left the gate on time

AS278 arrived on time 86.5% of the time, against 88.0% for all PDXLAX flights — this specific departure is 1.5 percentage points worse than the route as a whole.

Source: US DOT Bureau of Transportation Statistics · 603 operations between 2024-10-01 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
AS27886.5%0.33%-5 min3.2%603
Alaska Airlines on PDXLAX85.9%1.09%-6 min2.8%5,580
All PDXLAX flights88.0%0.86%-10 min3.7%13,197

Source: FlyerIntel analysis of US DOT BTS data · 2024-10-01 to 2026-06-30

Other routes AS278 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.

RouteOperatedFlightsOn time
PDXDFW Portland to Dallas–Fort Worth2024-06-132024-06-152
FAIANC Fairbanks to Anchorage2024-03-142024-04-128

Because the same number has served different journeys, the statistics above describe only the route AS278 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 603 records of AS278 operating PDXLAX, 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.

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