The bus is the best if you're on a budgetWhile tickets can be directly purchased from the bus driver, it is best to reserve and buy them in advance. Keep in mind that the most popular routes and times tend to get full pretty quickly.
How can I travel across Spain cheaply?
Bus – The bus is the cheapest option for getting between cities in Spain. FlixBus has tickets starting as low as 5 EUR. Most buses come with outlets and free Wi-Fi. A 9–hour trip from Madrid to Barcelona starts from about 30 EUR, while the 4–hour trip between Seville and Granada costs around 20 EUR.
How much should you budget for a trip to Spain?
On average, a budget traveler's cost of visiting Spain for a week is $889. If you're on an ultra-budget, you can get by in Spain for a week with $650 on average. The average cost of a one-week mid-range trip is $1,200, while a luxury Spain trip starts from $2,500 on average.