DL4001Delta Air Lines · SAN → LAX
live · 56m ago
Route confirmed Delta Air Lines

DL4001 San DiegoSAN · 15:00 Los AngelesLAX · 16:03

DL4001 by Delta Air Lines flies from San Diego (SAN) to Los Angeles (LAX) for the Mon, Nov 2 departure.

Right nowAwaiting arrival in Los Angeles · off blocks 15:00 · on schedule
16:24

estimated arrival at LAX · local time · past this estimate · waiting on the board

En routeDL4001 · position estimated
SANSan DiegoLAXLos Angeles
Estimated from the boardsarr 16:24

Board estimate · gate and arrival times. Off blocks 15:00 · typical taxi-out at SAN ≈ 9.4 min.

Typical gate push+0 minmedian posted departure
Typical arrival+9 minmedian over 5 operations

Where the minutes go

last 5 operations · gate push → arrival
0+31+62+93 min
11-02
+0 gate · +21 arrival
11-01
+26 gate · −9 arrival
10-31
−10 gate · −32 arrival
10-30
+0 gate · +9 arrival
10-29
+93 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival +9 min · 0 cancelled · 5 operations tracked

The route today

live boards
SANSan DiegoOn-time likelySAN delay board →
LAXLos AngelesOn-time likelyLAX delay board →
SAN→LAXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
53%Chance of 15+ min delay
1.2%Chance of cancellation
+18 minTypical airport delay in this weather

Conditions at SAN and LAX are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at San Diego

Forecast

Tue 3 Nov, local date

High23°Clikely 22°C to 25°C
Low15°Clikely 14°C to 16°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Los Angeles

Forecast

Tue 3 Nov, local date

High23°Clikely 21°C to 24°C
Low15°Clikely 14°C to 16°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Diego to Los Angeles flights today

same route · Delta Air Lines
DL3743departs 06:15
DL3716departs 10:57
DL3993departs 15:00
DL4087departs 19:59

If DL4001 is cancelled, these are the other Delta Air Lines nonstop flights from San Diego to Los Angeles on the same day, with scheduled departure times in SAN local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How DL4001 actually runs

Pro Flight Search has tracked every published board update for DL4001 across the SAN and LAX boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min late. Based on 4 confirmed landings · 2/4 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how DL4001 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-02SAN 15:00 (+0)LAX 16:03 16:24 (+21)
11-01SAN 15:00 15:26 (+26)LAX 16:03 15:54 (−9)
10-31SAN 15:00 14:50 (−10)LAX 16:03 15:31 (−32)
10-30SAN 15:00 (+0)LAX 16:03 16:12 (+9)
10-29SAN LAX 16:03 17:36 (+93)

Aircraft

Recent tails: N303SY, N288SY, N285SY, N304SY.

Board clocks recorded as SAN and LAX published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: DL4001 San Diego to Los Angeles on-time performance, measured from the SAN and LAX airport boards.

Canonical URL
https://proflightsearch.com/flight/DL4001
How we measure this →