The train service connecting Ermidas - Sado to Sete Rios is primarily operated by Comboios de Portugal (CP). The journey is serviced mainly by the Intercidades train, which offers comfortable seating options and amenities for passengers. This route features a travel time of approximately 2 hours and 15 minutes, covering several important stops along the way such as Setúbal and Lisboa. The Intercidades train reaches speeds of up to 160 km/h (99 mph), providing a reliable and efficient service between these two points. Additionally, trains on this route typically offer air-conditioned cabins and onboard refreshments, making the travel experience pleasant. While not a high-speed rail service, the Intercidades allows for a balance between speed and accessibility, catering to both local and regional travelers.