WN3840Southwest Airlines · SFO → BUR
live · 4m ago
Route confirmed Southwest Airlines

WN3840 San FranciscoSFO · 19:00 BurbankBUR · 20:35

WN3840 by Southwest Airlines flies from San Francisco (SFO) to Burbank (BUR) for the Mon, Nov 9 departure.

Right nowOn Time · gate D1
19:00

departs SFO · on schedule

Typical arrival+70 minmedian over 4 operations
Wins back in air~27 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+36+71+107 min
11-09
+85 arrival
11-08
+107 gate · +85 arrival
11-06
+86 gate · +54 arrival
11-05
−34 arrival

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

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
BURBurbankOn-time likelyBUR delay board →
SFO→BURevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
51%Chance of 15+ min delay
0.9%Chance of cancellation
+17 minTypical airport delay in this weather

Driven mainly by SFO (San Francisco), currently flying IFR (instrument). 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 Francisco

Forecast

Tue 10 Nov, local date

High22°Clikely 20°C to 24°C
Low13°Clikely 12°C to 15°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 Burbank

Forecast

Tue 10 Nov, local date

High29°Clikely 27°C to 31°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 Francisco to Burbank flights today

same route · Southwest Airlines
WN3839departs 10:00
WN4312departs 14:00
WN3497departs 14:25

If WN3840 is cancelled, these are the other Southwest Airlines nonstop flights from San Francisco to Burbank on the same day, with scheduled departure times in SFO 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 WN3840 actually runs

Pro Flight Search has tracked every published board update for WN3840 across the SFO and BUR boards: schedule changes, gate pushes and actual clocks. Usually lands ~75 min late. Based on 4 confirmed landings · 1/4 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how WN3840 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
11-09SFO 19:00BUR 20:35 22:00 (+85)
11-08SFO 19:00 20:47 (+107)BUR 20:35 22:00 (+85)
11-06SFO 19:00 20:26 (+86)BUR 20:35 21:29 (+54)
11-05SFO 19:00BUR 20:35 20:01 (−34)

Aircraft

Recent tails: N278WN, N285WN, N952WN.

Board clocks recorded as SFO and BUR published them.

Planning around WN3840? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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: WN3840 San Francisco to Burbank on-time performance, measured from the SFO and BUR airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3840
How we measure this →