I would like to extend my stay.
'Prolungare' — stress the third syllable: 'pro-lun-GA-re'. 'Soggiorno' — 'sog-GIOR-no'.
Use as your opening statement when you have decided to stay longer. Polite and direct — immediately communicates your intention.
'Prolungare' = to extend/prolong. 'Il mio soggiorno' = my stay. This is the standard Italian phrase for extending a hotel stay. 'Soggiorno' means both 'stay' and 'living room' in Italian — context clarifies.
Vorrei restare qualche giorno in più.
I would like to stay a few more days.
'Qualche giorno in più' = a few more days — vaguer, for when you are not sure how many
È possibile rimanere fino a venerdì?
Is it possible to stay until Friday?
States the desired new departure day
Posso prolungare di due notti?
Can I extend by two nights?
Specifies the number of extra nights
Extending a stay in Italy is culturally natural — Italians themselves extend holidays when possible, a reflection of the value placed on 'dolce far niente' (the sweetness of doing nothing). Hotel staff typically welcome the request and make every effort to accommodate you.