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Alaska Airlines, Inc.

Is AS357 delayed?

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

DepartedLast reported

93 min late

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Seattle

SEA

Actual

Scheduled 07:50

Sep 16

Arrival

Boston

BOS

Scheduled

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available
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Route overview: Seattle → BostonSEABOS
Route overview

Recent arrivals

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

  • SEA → BOS

    14 min late

  • SEA → BOS

    105 min late

  • SEA → BOS

    165 min late

  • SEA → BOS

    127 min late

  • SEA → BOS

    82 min late
Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals
28
Arrivals over 15 minutes late
10
Observed cancellations
0
Observed occurrences
29

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

AS357 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 15, 2026ArrivedSeattleBoston
14
Sep 14, 2026ArrivedSeattleBoston
105
Sep 13, 2026ArrivedSeattleBoston
165
Sep 12, 2026ArrivedSeattleBoston
127
Sep 11, 2026ArrivedSeattleBoston
82
Sep 10, 2026ArrivedSeattleBoston
122
Sep 9, 2026ArrivedSeattleBoston
109
Sep 8, 2026ArrivedSeattleBoston
61
Sep 7, 2026ArrivedSeattleBoston
-23
Sep 6, 2026ArrivedSeattleBoston
37
Sep 5, 2026ArrivedSeattleBoston
-34
Sep 4, 2026ArrivedSeattleBoston
-29
Sep 3, 2026ArrivedSeattleBoston
101
Sep 2, 2026ArrivedSeattleBoston
-10
Sep 1, 2026ArrivedSeattleBoston
132
Aug 31, 2026ArrivedSeattleBoston
-23
Aug 30, 2026ArrivedSeattleBoston
-28
Aug 29, 2026ArrivedSeattleBoston
-46
Aug 28, 2026ArrivedSeattleBoston
-34
Aug 27, 2026ArrivedSeattleBoston
-30
Aug 26, 2026ArrivedSeattleBoston
-16
Aug 25, 2026ArrivedSeattleBoston
-9
Aug 24, 2026ArrivedSeattleBoston
-10
Aug 23, 2026ArrivedSeattleBoston
-38
Aug 22, 2026ArrivedSeattleBoston
-8
Aug 21, 2026ArrivedSeattleBoston
-42
Aug 20, 2026ArrivedSeattleBoston
-39
Aug 19, 2026ArrivedSeattleBoston
-46

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