Car rentals in Siam, Bangkok

It costs $6/day on average for a car rental in Siam. momondo users have also found prices as high as $18/day and as low as $5/day, which is a 73% price variation. These price differences are often dependent on what neighborhood in {5} you rent your car in.

GREEN MOTION ($5/day) is the cheapest car rental company in Siam as of the past 72 hours, followed by CarWiz ($5/day), and Automarket Rent a Car ($5/day). Keep in mind that these are the cheapest prices our users have seen recently. Daily rental prices are subject to change based on what neighborhood in Bangkok you visit and what type of car you decide to rent.

If you’re looking to travel to Bangkok and save money on a rental car, then consider visiting Bang Khen or Min Buri. You will find that Drive Car Rental has the most affordable rental cars in Bang Khen at $14/day. Europcar has the cheapest rental cars in Min Buri at $16/day.

Prices for cars in Siam are updated daily.

The number of operators available for cars in Siam is 10 as of May 2026.

The minimum age for drivers varies by country, including Siam. In many EU countries drivers must be 18 years old. As a rule, you’ll need to be 21 to hire a car abroad, and a young driver surcharge may be applied if you are under 25. We recommend reading through the policy of your chosen rental company before booking.

All drivers must have a valid full driving license when renting a car in Siam. If the license is written in a different language from the country of rental, an International Driving Permit may be required to avoid the risk of potential fines. If you're renting a car overseas, you may also need to provide proof of return travel and accommodation information during your stay. It is always advisable to check with the individual rental company you're booking with.