Delta Air Lines
Is DL639 delayed?
No — DL639 landed in Boston <1 min early, at 15:01 on Sep 25 (as of Sep 25, 19:02 UTC). Over its last 27 recorded arrivals, 6 landed more than 15 min late.
Arrived
<1 min early
Official source · Updated
Departure
Los Angeles
LAX
Actual
Scheduled 06:55
Sep 25
Arrival
Boston
BOS
Actual
Scheduled 15:02
Sep 25
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.
- <1 min early
Los Angeles → Boston
- 16 min late
Los Angeles → Boston
- 32 min late
Los Angeles → Boston
- 3 min early
Los Angeles → Boston
- 26 min late
Los Angeles → Boston
Flight history and details
Aug 29, 2026 — Sep 28, 2026
- Observed arrivals
- 27
- Arrivals over 15 minutes late
- 6
- Observed cancellations
- 0
- Observed occurrences
- 28
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 25, 2026Arrived | Los Angeles | Boston | 0 | |
| Sep 24, 2026Arrived | Los Angeles | Boston | 16 | |
| Sep 23, 2026Arrived | Los Angeles | Boston | 32 | |
| Sep 22, 2026Arrived | Los Angeles | Boston | -3 | |
| Sep 21, 2026Arrived | Los Angeles | Boston | 26 | |
| Sep 20, 2026Arrived | Los Angeles | Boston | 5 | |
| Sep 19, 2026Arrived | Los Angeles | Boston | -11 | |
| Sep 18, 2026Arrived | Los Angeles | Boston | -7 | |
| Sep 17, 2026Arrived | Los Angeles | Boston | 30 | |
| Sep 16, 2026Arrived | Los Angeles | Boston | -7 | |
| Sep 15, 2026Arrived | Los Angeles | Boston | 5 | |
| Sep 14, 2026Arrived | Los Angeles | Boston | 14 | |
| Sep 13, 2026Arrived | Los Angeles | Boston | -21 | |
| Sep 12, 2026Arrived | Los Angeles | Boston | -27 | |
| Sep 11, 2026Arrived | Los Angeles | Boston | -1 | |
| Sep 10, 2026Arrived | Los Angeles | Boston | 5 | |
| Sep 9, 2026Arrived | Los Angeles | Boston | -20 | |
| Sep 8, 2026Arrived | Los Angeles | Boston | 4 | |
| Sep 7, 2026Arrived | Los Angeles | Boston | -4 | |
| Sep 6, 2026Arrived | Los Angeles | Boston | -21 | |
| Sep 5, 2026Arrived | Los Angeles | Boston | -26 | |
| Sep 4, 2026Arrived | Los Angeles | Boston | 43 | |
| Sep 3, 2026Arrived | Los Angeles | Boston | -28 | |
| Sep 2, 2026Arrived | Los Angeles | Boston | -29 | |
| Sep 1, 2026Arrived | Los Angeles | Boston | -42 | |
| Aug 31, 2026Arrived | Los Angeles | Boston | -3 | |
| Aug 30, 2026Arrived | Los Angeles | Boston | 19 |