The price on Compare Parking Prices's site when you book is the one you pay; check what it includes before you pay. I may earn a commission when you book, at no cost to you.
How park and ride works on the day
Drive to the car park's address on your booking, not to the airport.
Park, or hand over your keys if they park it for you, then take the shuttle bus or train to the terminal.
Leave time for the transfer: the wait for the bus as well as the ride.
Coming back, take the shuttle from the stop your booking names and drive home from the car park.
What Airport Parking Bay says
Park & Ride service 1 mile from Luton Airport Airport transfer included Frequent drop-off and pick-up at the terminal Secure car park Customer must leave their vehicle key with us for secure storage and handling Vehicles may be moved up to 4–5 miles to our other secure car park during busy periods £20 per additional day will be charged for overstays
In the listing's own words, from Compare Parking Prices. I haven't checked these claims; ask the car park about anything that matters to you.
Before you book
Check how often the shuttle runs at the times you travel, late at night especially.
Check whether you keep your keys or leave them.
Check the car park's opening hours against your flights.
Driving to Luton
Being dropped off
£9 for 12 minutes
No barrier, cashless. Pay online by midnight the next day, or set up an account. £1 a minute after 12 minutes, 30 at most.
If you don't pay: Over 30 minutes: £95, cut to £55 if paid within 14 days.
Free instead: Long Stay car park: two hours free, with a free shuttle bus (about 10 minutes, every 20 minutes).