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Alaska Airlines, Inc.

Is AS638 delayed?

No, AS638 landed in Tucson 9 min early, at 21:48 on Oct 30 (as of Oct 31, 04:49 UTC).

Arrived

9 min early

Official source · Updated

Departure

Seattle

SEA

Actual

Scheduled 19:17

Oct 30

Arrival

Tucson

TUS

Actual

Scheduled 21:56

Oct 30

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 → Tucson

    9 min early
  • Seattle → Tucson

    On time
  • Seattle → Tucson

    On time
  • Seattle → Tucson

    18 min late
  • Seattle → Tucson

    17 min late

Is AS638 usually late?

Period: Oct 16, 2026 – Nov 15, 2026

Landings recorded
9
Graded against schedule
9
Not graded
0
On time
4
Late
5
Cancelled
0
Diverted
0

Percentages and delay figures appear once 20 arrivals are graded.

On time means landing no more than 15 minutes after the scheduled arrival, late more than 15 minutes after, both times read to the minute. The percentages share one base: graded arrivals plus cancelled and diverted flights. A cancelled plan another plan of the flight replaced within 12 hours is not counted. Median and “9 in 10” are interpolated over the graded arrivals. Compares scheduled and actual arrival times, read to the minute. Some flights may be missing.

How flight status works

Departures on record at these airports today

Seattle (SEA) departures

Delayed: left more than 15 min after schedule
33 delayed, 7 cancelled of 174 departures on record
Flights from Seattle to Tucson today

Counts cover the departures on record at each airport, not its full schedule.

Other flights SEA → KTUS

Return flights KTUS → SEA

All Alaska Airlines, Inc. flights

Flight history and details
AS638 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Oct 30, 2026ArrivedSeattleTucson-9
Oct 29, 2026ArrivedSeattleTucson0
Oct 26, 2026ArrivedSeattleTucson0
Oct 25, 2026ArrivedSeattleTucson18
Oct 23, 2026ArrivedSeattleTucson17
Oct 22, 2026ArrivedSeattleTucson26
Oct 19, 2026ArrivedSeattleTucson19
Oct 18, 2026ArrivedSeattleTucson12
Oct 16, 2026ArrivedSeattleTucson18
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