Car rentals in San Francisco, Madrid

Right now it looks like the best car rental deals in San Francisco are with Rental plus.

It often pays to catch public transportation to a pickup point that's cheaper than the ones nearest to you. Lavapiés, Arganzuela and La Latina may have lower daily prices than the car rental deals in San Francisco.

We clearly highlight car and van rental options in San Francisco that have free cancellation – so you can score the best deal with total flexibility to change your plans if you need to.

If there are more than five people traveling, look for van rental in San Francisco, as it could be cheaper than renting two cars.

We crunched our calendar and found the cheapest month to rent a car in San Francisco is September. Another tip on when to book? Most travelers score the lowest daily rate when they book a week in advance.

To save money on topping up the tank as you take off from San Francisco, look out for deals with a "full to full" tank fuel policy, as opposed to a "half-full to full" one.

Keyless pickup is a relatively new concept that lets you show up at your preferred car rental location, hop in and hit the road without having to line up at a desk. If it's available anywhere in San Francisco, we'll highlight it when you search.