I am looking for a Seat Leon estate automatic and A/C in Lisbon for 13 days
Please use the website to conduct your search, the website will indicate what is possible.
Do I have to pay for rental now or at Lisbon Airport?
Usually you pay upfront online whilst making the reservation. But sometimes it can be a deposit online and the balance when you arrive
Once you have made the reservation you will receive an email confirmation voucher and this will contain all the information you need. You should print this and take it with you ideally.