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Alaska Airlines, Inc.

Is AS571 delayed?

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

Arrived

11 min late

Updated

Departure

Seattle

SEA

Actual

Scheduled 11:29

Sep 1

Arrival

Ontario

ONT

Actual

Scheduled 21:09

Sep 1

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Recent arrivals

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

  • SEA → ONT

    1 min early

  • SEA → ONT

    4 min late

  • SEA → ONT

    52 min late

  • SEA → ONT

    9 min late

  • SEA → ONT

    10 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
24
Arrivals over 15 minutes late
8
Observed cancellations
0
Observed occurrences
30

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

AS571 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedSeattleOntario
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-1
Sep 16, 2026ArrivedSeattleOntario
4
Sep 15, 2026ArrivedSeattleOntario
52
Sep 14, 2026ArrivedSeattleOntario
9
Sep 13, 2026ArrivedSeattleOntario
10
Sep 12, 2026ArrivedSeattleOntario
-3
Sep 11, 2026ArrivedSeattleOntario
19
Sep 10, 2026ArrivedSeattleOntario
11
Sep 9, 2026ArrivedSeattleOntario
28
Sep 8, 2026ArrivedSeattleOntario
170
Sep 7, 2026ArrivedSeattleOntario
-6
Sep 6, 2026ArrivedSeattleOntario
-8
Sep 5, 2026ArrivedSeattleOntario
-13
Sep 4, 2026ArrivedSeattleOntario
40
Sep 1, 2026ArrivedSeattleOntario
11
Aug 31, 2026ArrivedSeattleOntario
8
Aug 30, 2026ArrivedSeattleOntario
-6
Aug 29, 2026ArrivedSeattleOntario
-13
Aug 28, 2026ArrivedSeattleOntario
-11
Aug 27, 2026ArrivedSeattleOntario
30
Aug 26, 2026ArrivedSeattleOntario
21
Aug 25, 2026ArrivedSeattleOntario
-7
Aug 24, 2026ArrivedSeattleOntario
149
Aug 19, 2026ArrivedSeattleOntario
-18

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