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Parking @ LAX: https://book.flylax.com/book/LAX/Parking or LAX Official Airport Parking

Recommendations for selecting booking times and total booking periods: https://www.flyertalk.com/forum/34711926-post186.html
Note also that for booking close-in and and around holiday peaks, some of the off airport lots may offer advance rates that are very competitive with the LAX operated lots.

Interactive map of LAX on-airport (Central Terminal Area) parking status is linked here (includes links to nearby off airport parking if you scroll down)

Economy and Budget Lot Shuttle Tracker (bottom link, light blue) (as of 10/25/23 it seems to mostly show Budget Lot shuttles and some Economy Lot shuttles don't show up on the tracker)

Note that parking rates in the CTA structures increased on 10/19/21.
Economy Parking (structure in part of the old lot C location) opened 10/19/21.
Prebooking is available at substantial discounts for the CTA ($22 vs $50/day) and Economy ($15 vs $25/day) parking at this link
See most recent posts in thread for prebooking discount codes offered for airport operated parking lots.

For prebooking, you must book at least 6 hours before your arrival.
For the Economy Lot, your QR code becomes active 4 hours prior to your booked arrival time
For CTA lots, the QR code becomes active 2 hours prior to your booked arrival time.

Note that access to the Economy Lot is only via Westchester Pkwy to Jetway Bl - there doesn't appear to be any shortcut via 96th.

Fly LAX Official Twitter Feed with general information.
Fly LAX Stats Official Twitter feed with parking lot occupancy and time to T1 from points outside the airport and time through the U on the upper and lower levels.

Park 'N Fly @ Park One and LAX Lot C are permanently closed.
Lot E is permanently closed as of 7/26/21

With the limited availability of parking at LAX as travel picks back up, Van Nuys or Union Station+Flyaway bus may be a reasonable alternative:
Union Station Parking (at Patsouras Plaza) is $8/day. Make sure you're in Union Station East (the underground facility) and fill out and drop off the downloadable form if you'll be there longer than 3 days.
The Consolidated "LAX Flyaway Bus" Thread (2014 - Date) has up to date information on taking the flyaway bus; parking is $5 a day.

https://www.flylax.com/-/media/flyla...iting-lot.ashx

Older posts on this topic may contain relevant information and can be found in this thread: