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Alaska Airlines, Inc.

Is AS521 delayed?

Yes, AS521 landed in San Jose 186 min late, at 20:02 on Nov 13 (as of Nov 14, 04:03 UTC).

Usually on time: arrived within 15 min of schedule on 29 of the last 42 flights.

Arrived

186 min late

Official source · Updated

Departure

Seattle

SEA

Actual

Scheduled 15:10

Nov 13

Arrival

San Jose

SJC

Actual

Scheduled 16:57

Nov 13

Times shown in airport local time

Service date: · Scheduled departure date (America/Los_Angeles)

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • Seattle → San Jose

    186 min late

  • Seattle → San Jose

    6 min early

  • Seattle → San Jose

    On time

  • Seattle → San Jose

    13 min early

  • Seattle → San Jose

    23 min late

Is AS521 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
42
On time
69%
of 42 arrivals
Late
31%
of 42 arrivals
Cancelled
0%
of 43 flights
Median arrival delay
7 min
9 in 10 arrived within
38 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.

How flight status works

At the airports today

Seattle (SEA) departures

Left more than 15 min late
24 of 48
Cancelled today
37
Flights from Seattle to San Jose today

Related flights

All Alaska Airlines, Inc. flights

Flight history and details
AS521 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 13, 2026ArrivedSeattleSan Jose186
Nov 12, 2026ArrivedSeattleSan Jose-6
Nov 11, 2026ArrivedSeattleSan Jose0
Nov 10, 2026ArrivedSeattleSan Jose-13
Nov 9, 2026ArrivedSeattleSan Jose23
Nov 8, 2026ArrivedSeattleSan Jose-6
Nov 6, 2026ArrivedSeattleSan Jose38
Nov 5, 2026ArrivedSeattleSan Jose-1
Nov 4, 2026ArrivedSeattleSan Jose7
Nov 3, 2026ArrivedSeattleSan Jose-7
Nov 2, 2026ArrivedSeattleSan Jose-17
Nov 1, 2026ArrivedSeattleSan Jose-11
Oct 31, 2026ArrivedSeattleSan Jose-4
Oct 29, 2026ArrivedSan JoseSeattle-1
Oct 29, 2026ArrivedSeattleSan Jose3
Oct 28, 2026ArrivedSan JoseSeattle0
Oct 28, 2026ArrivedSeattleSan Jose13
Oct 27, 2026ArrivedSan JoseSeattle2
Oct 27, 2026ArrivedSeattleSan Jose13
Oct 26, 2026ArrivedSan JoseSeattle-7
Oct 26, 2026ArrivedSeattleSan Jose-6
Oct 25, 2026ArrivedSan JoseSeattle1
Oct 25, 2026ArrivedSeattleSan Jose20
Oct 24, 2026ArrivedSan JoseSeattle-11
Oct 24, 2026ArrivedSeattleSan Jose12
Oct 23, 2026ArrivedSan JoseSeattle36
Oct 23, 2026ArrivedSeattleSan Jose10
Oct 22, 2026ArrivedSan JoseSeattle3
Oct 22, 2026ArrivedSeattleSan Jose16
Oct 21, 2026ArrivedSan JoseSeattle18
Oct 20, 2026ArrivedSan JoseSeattle50
Oct 20, 2026ArrivedSeattleSan Jose44
Oct 19, 2026ArrivedSan JoseSeattle-11
Oct 19, 2026ArrivedSeattleSan Jose24
Oct 18, 2026ArrivedSan JoseSeattle43
Oct 18, 2026ArrivedSeattleSan Jose32
Oct 17, 2026ArrivedSan JoseSeattle11
Oct 17, 2026ArrivedSeattleSan Jose9
Oct 16, 2026ArrivedSan JoseSeattle-10
Oct 16, 2026ArrivedSeattleSan Jose14
Oct 15, 2026ArrivedSan JoseSeattle36
Oct 15, 2026ArrivedSeattleSan Jose12
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