I-VII 07:00 – 22:00
OK Rent a Car (OK Mobility) is a fast-growing budget chain at Porto Airport (OPO) – competitive headline prices and a modern fleet, but a mixed reputation for deposit holds and counter upsells, so read the terms carefully. Economy cars start around €10–18/day ($11–$20) in low season. There's good news on tolls: the A28 to Viana and A4 to Vila Real became toll-free in 2025. This guide covers OK Rent a Car in Porto honestly, the real prices, the better-value alternatives, and the traps to avoid.
OK Rent a Car (OK Mobility) offers competitive prices and a modern fleet at Porto – read the deposit terms.
Porto Airport (OPO) is a large, competitive market. With budget chains like OK, the headline rate is attractive – just factor in the deposit and any extras. Expect roughly:
Average Daily Rates at Porto Airport by Season
Booked 4–6 weeks in advance, prices in EUR
| Season | Manual Economy | Manual Compact | Automatic Compact |
|---|---|---|---|
| Low (Nov–Feb) | €10–18 | €14–22 | €26–40 |
| Shoulder (Mar–May, Oct) | €18–28 | €22–36 | €36–52 |
| Peak (Jun–Sep) | €30–45 | €36–55 | €52–80 |
OK's headline rate is competitive – but check the deposit and fuel/insurance terms before booking.
OK Rent a Car (part of OK Mobility) is a Spanish-origin budget chain that has expanded fast across Iberia, with a modern fleet and a city/airport presence in Porto.
Reviews are mixed: many travellers report smooth rentals and newish cars, but a recurring theme is a high deposit hold and counter pressure on extras and fuel. Read the deposit and fuel terms line by line, decline cover you don't want, and document the car at pickup.
The subject of this guide – competitive headline rates and a modern fleet, but watch the deposit and counter upsells. Compare its all-in price against the local value operators.
A well-rated Portuguese brand that often undercuts the chains with clearer terms.
The strongest international brand at Porto for a newer fleet and a real terminal desk. Pricier; watch the upsell.
A dependable major with a broad fleet and clearer terms than the budget chains.
Aggressive upsells, fuel and damage disputes, and one of the lowest Trustpilot scores in the industry.
Cheap online but notorious for strict fuel rules and excess disputes at return.
Low headline prices but repeated complaints over deposit holds and fuel policy.
Basic CDW with an excess of €1,000–€1,800 (budget chains often block higher deposits). Tyres, glass and underbody usually excluded.
Super CDW to zero the excess is €15–25/day – budget-chain counters push it hard.
Standalone excess insurance (€4–7/day) bought before you travel covers the excluded items and refunds any excess charged – especially worthwhile with a budget chain.
Insurance Cost Comparison: 7-Day Porto Rental
2026 pricing
| Option | Daily Cost | 7-Day Total | Covers Tyres/Glass? |
|---|---|---|---|
| Basic CDW (included) | €0 | €0 | No |
| Counter Super CDW | €15–25 | €105–175 | Sometimes |
| Third-party excess cover | €4–7 | €28–49 | Yes |
The A1 (Porto–Lisbon) and A3 (to Braga) still use cash/card booths. The A28 to Viana and the A4 to Vila Real became toll-free in 2025; only the A41/A42 ring roads remain electronic.
| Route from Porto | Road | Toll |
|---|---|---|
| Porto → Lisbon | A1 | ~€25 (booth) |
| Porto → Braga | A3 | ~€5–6 (booth) |
| Porto → Viana do Castelo | A28 | Free (since 2025) |
| Porto → Douro / Vila Real | A4 | Free (since 2025) |
With budget chains, add the deposit and any extras before deciding.
See the market, then check local value operators like Guerin.
For the deposit hold with budget chains.
Decline the counter upsell.
Avoid prepay-a-tank policies.
Refuel and document the car.
The UNESCO terraced vineyards, with port-wine quintas – the A4 is now toll-free.
Braga's Bom Jesus sanctuary and the birthplace of Portugal in Guimarães.
An elegant northern coastal town, now reachable toll-free on the A28.
The “Portuguese Venice” and the striped beach houses of Costa Nova.
Portugal's only national park.
OK (OK Mobility) is a budget chain with competitive prices and a modern fleet, but mixed reviews – mainly about high deposit holds and counter upsells. It can work if you read the terms and decline extras, though Guerin and local operators are often less hassle.
OK has an airport/city presence in Porto; confirm at booking whether pickup is at the terminal or a nearby depot, and check the deposit requirement.
Budget chains like OK often block a sizeable deposit on a credit card. Confirm the exact amount when booking and make sure your card has enough available limit.
The A1 and A3 use cash/card booths. The A28 to Viana and the A4 to Vila Real became toll-free in 2025. Only the A41/A42 ring roads remain electronic.
Bring enough credit-card limit for the deposit, choose full-to-full fuel, buy third-party excess insurance, decline the counter Super CDW, and film a walk-around video at pickup and return.
Low-season manual economy cars start at €10–18/day ($11–$20). Shoulder season is €18–28/day and peak summer €30–45/day – but check OK's all-in price.
Disclosure: Auto Jardim participates in the DiscoverCars affiliate program. Our company reviews are based on Trustpilot scores, Google Maps reviews, traveler-forum feedback and direct experience. We only recommend companies we would use ourselves.
Last updated: June 2026. Prices and policies change – always verify directly with the rental company.
