Travelers on the Estarreja to Coimbra route can choose between regional train services, primarily operated by Comboios de Portugal. The Intercidades trains provide a more comfortable and quicker option compared to the regional services. The Intercidades trains reach speeds of up to 140 km/h (87 mp/h) and cover the journey in approximately 1 hour and 20 minutes, making fewer stops than regional trains. In contrast, the regional trains take around 1 hour and 45 minutes, stopping at more stations along the way, including locations like Aveiro and Oliveira do Bairro.
Both types of trains offer standard seating, with restrooms available on board, but the Intercidades trains offer a level of comfort desirable for those looking to travel more efficiently. With the scenic views of the central region of Portugal, the Intercidades is a preferred choice for those requiring a faster travel time.