Booking.com is very usefull.
adds two fields to the product page: a start date
and an end date and then calculates a new price
based on a daily, nightly, weekly or custom basis
( E.g.$4 per day / night / week / custom period) .
It uses Pickadate.js to display the calendars and
set the dates.
See the plugin demo here .
For more features, check these add-ons:
Easy Booking: Availability Check to manage
stocks and availabilities.
Easy Booking: Duration Discounts to apply
discounts or surcharges depending on booking
duration.
Easy Booking: Disable Dates to disable days,
dates or dateranges for booking.