What to expect when you rent a car at San Juan Airport
San Juan Airport (SJU) has rental desks for most major companies in the baggage claim area on the ground floor. You'll pick up your car from the rental facility across the street, which you reach by shuttle. The entire process — from counter to driving off the lot — typically takes 15 to 30 minutes if your reservation is already made and your documents are in order.
Rental companies at SJU include Enterprise, Hertz, Avis, Budget, and several local operators. Prices vary by company and season; summer and holiday weeks are more expensive than shoulder months. If you're renting in Puerto Rico for the first time, note that driving is on the right side of the road, but road conditions and signage differ from the mainland, and some rural areas have minimal markings.
Key Takeaways
- Rental desks are in baggage claim on the ground floor; you take a shuttle to the actual lot across the street.
- Bring your driver's license, passport or ID, and a credit card in your name — rental companies will place a hold on the card for the security deposit.
- Book online before arrival to lock in a rate; walk-up rates at the airport are typically 20 to 40 percent higher.
- Collision damage waiver (CDW) and liability coverage are not always included; confirm what your credit card covers and whether you need to purchase additional insurance.
- Return the car with a full tank of gas; rental companies charge inflated per-gallon rates if you return it empty.
Documents you need to bring
You must have a valid driver's license from your home country or state. If your license is not in English, bring an International Driving Permit (IDP) as well — it's not required by law in Puerto Rico, but rental companies often ask for it and it removes any ambiguity at a police stop.
Bring your passport or government-issued photo ID. Rental companies will verify your identity against your driver's license. You'll also need a credit card in your own name; the company will place a hold (typically $200 to $500) for the security deposit. Debit cards are rarely accepted for this hold, even if you have enough funds.
If you're renting under a corporate account or with a third-party booking site, bring the confirmation email and any corporate ID or authorization letter. Some companies require the person named on the reservation to be present and to sign the rental agreement in person.
Booking online versus at the counter
Booking online before you arrive locks in a daily rate and guarantees a car category. Walk-up rates at the SJU counter are almost always higher — often 20 to 40 percent more than the pre-booked price for the same car on the same dates. If you book through a third-party site like Kayak or Autoslash, print or screenshot your confirmation; some rental companies have had disputes with third-party bookings, and having proof avoids delays.
When you book, you'll see options for collision damage waiver (CDW), liability coverage, and roadside information. Read what's included in the base rate. Many credit cards cover collision damage if you decline the rental company's CDW, but you must decline the company's coverage to trigger your card's protection — if you buy both, your card won't pay. Call your credit card issuer before you travel to confirm what's covered and what the deductible is.
Book directly with the rental company's website if you want the easiest cancellation or modification. Third-party sites sometimes have stricter change policies. If you're unsure about your travel dates, book refundable rates even if they cost a few dollars more per day.
Insurance and damage coverage at SJU
Rental companies at SJU will offer collision damage waiver (CDW), liability coverage, and sometimes theft protection. CDW covers damage to the rental car if you're in an accident; liability covers damage you cause to other vehicles or property. The daily cost for both is typically $15 to $30, depending on the company and car type.
Before you buy coverage from the rental company, check what your personal auto insurance covers when you rent. Many policies extend to rental cars at no extra cost. Credit card companies also offer collision coverage if you use that card to pay for the rental — but again, you must decline the rental company's CDW to use your card's coverage. If you have neither, buying the rental company's CDW is the safer choice.
Liability coverage is sometimes included in the base rate; sometimes it's an add-on. In Puerto Rico, the minimum liability requirement is $75,000 per person and $150,000 per accident. If the rental company's base rate doesn't include liability, buy it. Driving without adequate coverage is a legal and financial risk.
Fuel, mileage, and return conditions
Most rentals at SJU are on a "full-to-full" basis: you pick up the car with a full tank and return it with a full tank. If you return it empty or partially empty, the company charges you per gallon — rates are typically $6 to $8 per gallon, well above local pump prices. Fill up at a gas station near the airport or in San Juan before you return the car.
Mileage is usually unlimited on SJU rentals, but confirm this when you book. Some budget companies or long-term rentals cap mileage at 100 or 150 miles per day and charge $0.25 to $0.50 per mile over the limit. If you plan to drive to the western or eastern end of the island, unlimited mileage is worth the extra cost.
Return the car clean and undamaged. Rental companies charge cleaning fees ($50 to $150) if the car is excessively dirty. Return it on time; late fees are typically $50 per hour or a full day's rental charge if you're more than an hour late. If you're running behind, call the rental company as soon as you know — some will waive a small overage if you notify them in advance.
Getting from the airport to the rental lot
After you collect your luggage and clear customs, follow signs to the rental car area in baggage claim. Each company has a desk; you'll check in, review the rental agreement, and receive a shuttle pass. The shuttle departs every 5 to 10 minutes and takes about 5 minutes to reach the rental facility across the street.
At the lot, an agent will walk you around the car, point out any existing damage, and have you sign a damage report. Take photos of the car's condition on your phone — front, back, sides, and any scratches or dents. This protects you if the company tries to charge you for pre-existing damage when you return it. The agent will explain the car's controls and answer questions before you drive off.
If you arrive outside business hours (late night or very early morning), some companies have reduced staffing or automated check-in. Call ahead if you're arriving between 11 p.m. and 6 a.m. to confirm someone will be there to meet you.
Driving in Puerto Rico and returning your car
Roads in San Juan and along the main highways (PR-52, PR-22) are well-maintained, but rural roads can be narrow and poorly lit. Speed limits are posted in miles per hour. Tolls are required on PR-52 and PR-22; you can pay cash at toll booths or use a SunPass transponder (rental companies sometimes offer these). Parking in San Juan can be tight; many hotels and restaurants have valet or validated parking.
Return the car to the same rental lot where you picked it up. Allow 30 to 45 minutes for the return process: you'll drive in, an agent will inspect the car and compare it to the damage report you signed, and you'll settle any additional charges. If there are no new damages and the tank is full, you'll be on your way in 10 to 15 minutes. Keep your receipt and any paperwork the company gives you.
If you're returning the car after hours, some companies have a drop-box or automated return process. Confirm the procedure when you pick up the car so you know what to expect.
Frequently Asked Questions
Can I rent a car if I'm under 25?
Yes, but most companies charge a young driver fee ($15 to $25 per day) for drivers under 25. Some companies have a minimum age of 21; a few require 25. Check the rental company's age policy when you book. You'll still need a valid driver's license and credit card.
What happens if I get into an accident?
Call the rental company when ready and report the accident. If there are injuries or significant damage, also call the police and get a police report number. Take photos of all vehicle damage, get the other driver's insurance information, and exchange contact details. The rental company will guide you through the claims process. If you purchased their CDW, your out-of-pocket cost is typically the deductible (usually $500 to $1,000).
Can I rent a car one-way, dropping it off in a different city?
Yes, most major companies allow one-way rentals within Puerto Rico. You'll pay a drop-off fee (typically $25 to $75) in addition to the daily rental rate. Book this when you reserve; one-way rates are usually higher than round-trip rates for the same number of days.
Do I need an International Driving Permit if my license is in English?
No, a valid driver's license in English is sufficient by law. However, some rental companies ask for an IDP anyway. If you have one, bring it to avoid any back-and-forth at the counter. If you don't, your English-language license will work.
What if I need to extend my rental after I've picked up the car?
Call the rental company as soon as you know you need extra days. If cars are available, they'll extend your reservation at the current rate (which may be higher than your original rate). Extending by phone is faster than returning early and rebooking. If you booked through a third-party site, call the rental company directly rather than the booking site.