Car hire at Porto Airport: what it costs, month by month

The table

Cheapest found is the single cheapest car, at the price shown when booking (it appears once enough searches record it; the deposit and any desk charges are on each car in the search). Low end: only 1 car in 10 costs less than this. Middle is the typical car. + second driver and + full cover add each car's own quoted fee and DiscoverCars' Full Coverage price - only cars that quote them count, never as free; those rows appear as searches record them (from 27 September).

Trip	Includes	Cheapest found / day	Low end / day	Middle / day
A week October 2026 9 searches · 20–27 September 2026 price these dates	Rental only	€1.82	€3.48	€26.42
	+ second driver	€2.69	€13.18	€37.27
	+ full cover	€8.50	€11.89	€36.61
	+ driver and full cover	€8.50	€21.42	€48.43
A week November 2026 10 searches · 20 September – 5 October 2026 price these dates	Rental only	€1.82 Fiat Panda · Sicily By Car	€4.34	€24.13
	+ second driver	€3.04	€13.15	€33.22
	+ full cover	€8.86	€12.63	€33.35
	+ driver and full cover	€8.86	€21.47	€43.35
A month (28-30 days) November 2026 10 searches · 20 September – 5 October 2026 price these dates	Rental only	€6.15 Peugeot 208 · Opo rent	€14.55	€41.23
	+ second driver	€6.86	€18.04	€50.27
	+ full cover	€10.57	€19.38	€50.45
	+ driver and full cover	€11.29	€22.77	€61.52

Months not in the table have not been measured yet - we add one as soon as enough searches back it, and never estimate.

What the numbers say about Porto Airport

• At the low end, a month cost more per day than a week (€14.55 against €4.34 for November 2026 pick-ups): several of the cheapest suppliers do not offer long rentals at their weekly price, so a chain of shorter rentals can win.
• None of these figures includes a second driver: 92% of suppliers here charge for one, typically €70 per rental.

Before you compare prices

• A second driver is extra at most suppliers here - typically €70 per rental.
• The deposit held on the main driver's credit card is typically €1,400 - even with full cover bought when booking.
• Almost every car is free to cancel (100% of offers): book early, search again nearer the date, rebook if it drops.