No. 17 of 27 at OPO

Sixt

Name: Sixt at Porto Francisco Sá Carneiro Airport: Counterwise rating
Item: Sixt (Porto Francisco Sá Carneiro Airport)
Rating: 4.9
Author: Counterwise

at Porto Francisco Sá Carneiro Airport

Shuttle 2 min

Medium consensus Check prices ↓

At a glance

Sixt at Porto Francisco Sá Carneiro Airport is ranked No. 17 of 27 car rental desks at the airport, with a Counterwise Score of 4.9/10 (Poor).
The Sixt desk is off-site: the shuttle from Porto Airport takes about 2 minutes.
A credit card in the main driver's name is required; the deposit amount is not confirmed yet.
Fuel policy: full to full. Opening hours: 07:00–23:59 daily.
Main red flag from travellers: Many recent reviews (about 19, concentrated in Sept to Nov 2026) report the car being refused, or only released after buying costly extra cover, because the desk treated the main driver's card as debit rather than credit. Several say this was not clear at booking and had been prepaid, and travellers ended up renting elsewhere at higher prices..

Based on 228 reviews analysed · Last updated 12 November 2026 · How scores work

The short version

Based on about 120 informative recent Google reviews after removing 72 reviews (mostly 5-star notes praising individual shuttle drivers or staff), this desk offers fast pickups, a frequent shuttle and generally clean cars. However, a clear cluster of recent reports describes cars refused or costly cover required when the card is treated as debit, plus damage charges sent weeks after return without a joint inspection. Web evidence is mostly undated forum posts that broadly agree on the damage-charge concerns.

AI-assisted summary of 228 recent Google reviews and web reports, reviewed by our editor on 12 November 2026. How we do it

Score breakdown

Each sub-score is out of 10. Higher is always better for you. How the weights work

Deposit & damage disputes(30% of score)

Poor3.0/10

How often travellers report surprise damage charges, slow deposit refunds or disputed scratches. Based on 25 reports · high confidence.

Counter upselling(20% of score)

Poor3.0/10

Pressure to buy extra insurance, upgrades or add-ons at the desk. Higher means less pressure. Based on 25 reports · high confidence.

Booking honoured(20% of score)

Poor3.0/10

Whether you get the car category and the price you booked, without new fees at the counter. Based on 28 reports · high confidence.

Queue time(15% of score)

Great8.0/10

Typical wait from reaching the desk (or shuttle stop) to holding the keys. Based on 23 reports · high confidence.

Car condition(15% of score)

Mixed7.5/10

Cleanliness, mileage and mechanical state of the cars handed out. Based on 30 reports · high confidence.

How this score was built

AI analysis of reviews and web reports (the sub-scores above, weighted): 4.4 · counts 70%
Star ratings on review platforms, rescaled against all desks we rate: 5.8 · counts 30%
72 of 300 recent reviews excluded as unreliable (solicited staff praise). How we clean reviews
Pulled 11% toward the airport average, because recent reviews are few (127 after weighting by age).

Medium consensusOur independent signals mostly agree, with some differences.

What travellers flag

Red flags (5)

Many recent reviews (about 19, concentrated in Sept to Nov 2026) report the car being refused, or only released after buying costly extra cover, because the desk treated the main driver's card as debit rather than credit. Several say this was not clear at booking and had been prepaid, and travellers ended up renting elsewhere at higher prices.
Numerous reviews describe damage charges (roughly 150 to 1,800 euros) arriving weeks after return, with the car not inspected together with the customer and customers' own photos being dismissed. This is echoed by a recent Trustpilot post about a Porto Airport damage charge and by undated forum posts.uk.trustpilot.com reddit.com
About a dozen reviews say pressure at the desk led to expensive protection or extras being added or charged that customers say they did not want or understand, including double cover on top of broker cover and optional items appearing on invoices.
Several reviews report extra post-rental fees, for example administrative fees, tolls and cleaning charges, together with weeks of unanswered emails or slow refunds from customer support.
A few reviews describe a crowded, tightly packed return area where cars could not be properly photographed or checked with staff at drop-off, which customers link to later damage claims.

Green flags (4)

Many recent reviews (about 18) describe quick pickups and returns with little or no waiting, and a shuttle running every 5 to 10 minutes.
About 20 reviews describe clean, recent, well-kept cars, including some EV and upgraded models.
Around 15 reviews describe friendly, helpful desk staff who fixed booking mistakes or category problems, and assisted travellers with reduced mobility or young children.
A handful of reviews report no push for insurance, no surprises at return, and fair fuel and mileage terms, so experiences are mixed.

Practical facts

Location	Off-site, shuttle about 2 minsource
Opening hours	07:00–23:59 dailysource
Credit card required	Yes, in the main driver’s namesource
Typical deposit	Not confirmed yet
Fuel policy	Full to fullsource
Shares the desk with	No other brands

“Not confirmed yet” means we have not verified that fact yet. We never guess.

Sources

Web pages behind this rating’s facts and flags, found through search APIs. The review analysis also used 228 recent Google reviews of this desk, which we do not republish.

Before you go

Tick these off at the counter. (Nothing is saved; it's just for you.)

Take photos and a short video of the car at pickup, including wheels, windscreen and the fuel gauge.
Check the fuel level matches the contract before you drive off.
Decline duplicate insurance at the desk if you already have excess cover. Bring proof of your policy.
Bring a credit card in the main driver’s name with enough available credit for the deposit (amount not confirmed yet).
Allow extra time: the shuttle ride is about 2 min each way, plus waiting.
Check the closing time (07:00–23:59 daily). If your flight lands late, call the desk: some wait, others close on time.

Sixt at other airports and stations

Same brand, different counter. We rate each location on its own.

Sixt at Porto Airport: questions and answers

Is Sixt at Porto Airport any good?

Sixt at Porto Francisco Sá Carneiro Airport has a Counterwise Score of 4.9/10 (Poor) and is ranked No. 17 of 27 desks at the airport. Main green flag: Many recent reviews (about 18) describe quick pickups and returns with little or no waiting, and a shuttle running every 5 to 10 minutes.. Main red flag: Many recent reviews (about 19, concentrated in Sept to Nov 2026) report the car being refused, or only released after buying costly extra cover, because the desk treated the main driver's card as debit rather than credit. Several say this was not clear at booking and had been prepaid, and travellers ended up renting elsewhere at higher prices..

Do I need a credit card to rent from Sixt at Porto Airport?

Yes. Sixt at Porto Francisco Sá Carneiro Airport requires a credit card in the main driver's name for the deposit.

How much is the deposit at Sixt at Porto Airport?

The deposit amount at Sixt at Porto Francisco Sá Carneiro Airport is not confirmed yet. Check the rental terms when you book. The lowest confirmed starting deposit at this airport is at Klass Wagen (from €0).

Where is the Sixt desk at Porto Airport?

The Sixt desk is off-site: the shuttle from Porto Airport takes about 2 minutes.

What are the opening hours of Sixt at Porto Airport?

Sixt at Porto Francisco Sá Carneiro Airport is open 07:00–23:59 daily. Fuel policy: full to full.

Other desks at Porto Airport

Ranked by Counterwise Score. Compare all 27 desks side by side