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Delta Air Lines

Is DL4127 delayed?

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

Arrived

13 min early

Updated

Departure

Seattle

SEA

Actual

Scheduled 14:45

Aug 22

Arrival

Boise

BOI

Actual

Scheduled 23:19

Aug 22

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 → BOI

    1 min late

  • BOI → SEA

    12 min early

  • SEA → BOI

    35 min early

  • BOI → SEA

    68 min late

  • BOI → SEA

    21 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
28
Arrivals over 15 minutes late
5
Observed cancellations
0
Observed occurrences
40

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

DL4127 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedSeattleBoise
View this flight’s market
1
Sep 16, 2026ArrivedBoiseSeattle
-12
Sep 15, 2026ArrivedSeattleBoise
-35
Sep 15, 2026ArrivedBoiseSeattle
68
Sep 14, 2026ArrivedBoiseSeattle
21
Sep 13, 2026ArrivedSeattleBoise
-25
Sep 13, 2026ArrivedBoiseSeattle
4
Sep 12, 2026ArrivedSeattleBoise
-7
Sep 12, 2026ArrivedBoiseSeattle
12
Sep 11, 2026ArrivedSeattleBoise
-15
Sep 11, 2026ArrivedBoiseSeattle
58
Sep 10, 2026ArrivedSeattleBoise
-10
Sep 10, 2026ArrivedBoiseSeattle
-1
Sep 9, 2026ArrivedBoiseSeattle
8
Sep 8, 2026ArrivedSeattleBoise
-22
Sep 8, 2026ArrivedBoiseSeattle
4
Sep 7, 2026ArrivedSeattleBoise
-23
Sep 7, 2026ArrivedBoiseSeattle
24
Sep 6, 2026ArrivedSeattleBoise
-5
Sep 6, 2026ArrivedBoiseSeattle
-8
Sep 5, 2026ArrivedSeattleBoise
-10
Sep 5, 2026ArrivedBoiseSeattle
86
Sep 4, 2026ArrivedSeattleBoise
-29
Sep 1, 2026ArrivedSeattleBoise
0
Aug 27, 2026ArrivedSeattleBoise
-4
Aug 26, 2026ArrivedSeattleBoise
-23
Aug 22, 2026ArrivedSeattleBoise
-13
Aug 21, 2026ArrivedSeattleBoise
-17

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