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Delta Air Lines

Is DL639 delayed?

DL639 left Los Angeles 4 min early, at 06:47 on Nov 14. Arrival time not confirmed yet.

Usually on time: arrived within 15 min of schedule on 25 of the last 28 flights.

DepartedLast reported

4 min early

This update may be out of date.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

Update time unavailable

Departure

Los Angeles

LAX

Actual

Scheduled 06:52

Nov 14

Arrival

Boston

BOS

Scheduled

Nov 14

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
Not available

Route overview: Los Angeles → BostonLAXBOS
Los Angeles → Boston

Recent arrivals

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

  • Los Angeles → Boston

    On schedule (13 min behind)

  • Los Angeles → Boston

    On schedule (15 min behind)

  • Los Angeles → Boston

    On schedule (5 min behind)

  • Los Angeles → Boston

    15 min early

  • Los Angeles → Boston

    14 min early

Is DL639 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
28
On time
89%
of 28 arrivals
Late
11%
of 28 arrivals
Cancelled
0%
of 29 flights
Median arrival delay
4 min
9 in 10 arrived within
19 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

Los Angeles (LAX) departures

Left more than 15 min late
41 of 82
Cancelled today
42
Flights from Los Angeles to Boston today

Boston (BOS) departures

Left more than 15 min late
31 of 61
Cancelled today
53

Related flights

All Delta Air Lines flights

Flight history and details
DL639 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 13, 2026ArrivedLos AngelesBoston13
Nov 12, 2026ArrivedLos AngelesBoston15
Nov 11, 2026ArrivedLos AngelesBoston5
Nov 10, 2026ArrivedLos AngelesBoston-15
Nov 9, 2026ArrivedLos AngelesBoston-14
Nov 8, 2026ArrivedLos AngelesBoston5
Nov 7, 2026ArrivedLos AngelesBoston29
Nov 6, 2026ArrivedLos AngelesBoston51
Nov 5, 2026ArrivedLos AngelesBoston-1
Nov 4, 2026ArrivedLos AngelesBoston-1
Nov 3, 2026ArrivedLos AngelesBoston-6
Nov 2, 2026ArrivedLos AngelesBoston1
Nov 1, 2026ArrivedLos AngelesBoston-4
Oct 31, 2026ArrivedLos AngelesBoston-10
Oct 30, 2026ArrivedLos AngelesBoston-16
Oct 29, 2026ArrivedLos AngelesBoston-5
Oct 28, 2026ArrivedLos AngelesBoston-2
Oct 26, 2026ArrivedLos AngelesBoston15
Oct 25, 2026ArrivedLos AngelesBoston6
Oct 24, 2026ArrivedLos AngelesBoston4
Oct 23, 2026ArrivedLos AngelesBoston6
Oct 22, 2026ArrivedLos AngelesBoston3
Oct 21, 2026ArrivedLos AngelesBoston8
Oct 20, 2026ArrivedLos AngelesBoston11
Oct 19, 2026ArrivedLos AngelesBoston-7
Oct 18, 2026ArrivedLos AngelesBoston6
Oct 17, 2026ArrivedLos AngelesBoston3
Oct 16, 2026ArrivedLos AngelesBoston42
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