The are 3 different ways across 3 unique modes of transportation to help you travel from Alicante to Callosa. If you're only considering the price, you should check out the train out of Alacant-Terminal towards Callosa de Segura, as it is the cheapest to Callosa. It's common to find tickets for as low as $14. Renfe operates from Alicante to Callosa, so you book your trip with them! Take the train, it is cheaper and more comfortable than the bus!
The trip to Callosa is an excellent trip for the day or a nice trip for the weekend from Alicante. The cheapest way to get from Alicante to Callosa is $14 and the quickest way takes just 1 hour 12 minutes with the train. Renfe offers limited service between Callosa and Alicante.We recommend booking the trip to Callosa about one week in advance. Though you might be able to find and book a ticket from Alicante the day of, it is best to do this earlier as to be sure you have a seat to Callosa.
While buses have recently gotten bad coverage because of cleanliness of bus stations or winter time accidents, they are can be very convenient for travel. The best part about traveling by bus to Callosa is that it can be very cheap. That's because they usually have basic accomodations - WiFi and a restroom. Some of the Alicante/Callosa buses' coverage has been overstated. The real thing to consider when taking a bus from Alicante is to consider the time of travel and the density of the cities that you're traveling to. If you are traveling by bus between Alicante Valencia and Callosa during high traffic times, you can expect to have your trip altered significantly due to traffic. Further, if you are traveling during winter, the bus schedule might be thrown off due to inclimate winter weather. Be sure to plan accordingly!
The plus side of taking the train from Alicante to Callosa? The accomodations, scenery, and lack of Callosa traffic can usually be on point. Moreover, you can usually expect your average concessions - such as food and drinks. Most trains have WiFi these days as well. The worst part about trains are the price. While the train to Callosa is often cheaper than flying, they are generally more expensive than buses. Train prices are usually set and do not vary as much as bus prices or flights or so the likelihood of finding discounts is pretty rare.