Transtejo Soflusa Will Open a Direct Seixal–Barreiro Electric-Ferry Run From June 2026 — Weekends First, Then Weekdays, on Top of the 100% Electric Seixal–Cais do Sodré Spine That Has Already Saved 1.74 Million Litres of Diesel

Infrastructure and Housing Minister Miguel Pinto Luz used a Tuesday-morning visit to Cais do Sodré to confirm a piece of south-bank-of-Tagus connectivity that local autarcas have been pushing for years: Transtejo Soflusa (TTSL) will open a direct Seixal–Barreiro fluvial-ferry connection from June 2026, beginning with a weekends-only schedule and adding weekday morning, afternoon and evening services as the rollout matures. "Hoje temos aqui uma novidade clara, que é o início do serviço em junho entre Seixal e Barreiro," Pinto Luz said.

TTSL President Rui Ribeiro Rei framed the new line as a long-overdue municipal ask. "É uma necessidade que os autarcas entendem e a população também," he told reporters at the same event. The Seixal autarca, Joaquim Santos, separately welcomed the announcement, calling out the connectivity gap between two large Setúbal-district municipalities that until now has forced cross-river commuters into a triangular Lisboa-routed detour.

What changes in June

The new schedule plugs Barreiro into TTSL's existing electric-ferry spine. From June, ferries will run a Seixal–Barreiro–Cais do Sodré pattern on weekends, with the operator promising a phased extension to weekday peak, off-peak and evening windows once vessel availability and crewing allow. The expansion sits alongside Fertagus's overland service from Barreiro into central Lisbon, which has been hit by repeated equipment shortfalls in 2026 and which currently routes commuters through the 25 de Abril bridge bottleneck.

The numbers behind the fleet

The June launch is being added to a fleet that is already producing operating data the operator can defend. According to the figures Pinto Luz and Ribeiro Rei walked through on Tuesday:

• 10 electric vessels in service, each with 540-passenger capacity
• 2 million passengers carried on electric ships in 12 months
• 17,276 trips on the Seixal–Cais do Sodré corridor between May 2025 and April 2026 (100% electric since May 2025)
• 10,289 trips on the Cacilhas–Cais do Sodré corridor since November 2025
• 52% of electric-ferry passengers use Cacilhas–Cais do Sodré; 48% use Seixal–Cais do Sodré
• 1.74 million litres of diesel avoided per year
• Equivalent to a CO₂ saving of 87,000 Lisboa–Porto car trips annually

The wider TTSL system carried about 21 million passengers across 128,000 trips in 2025, with management aiming for roughly 25 million annual users as the new vessels reach steady-state availability.

Why Barreiro now

The Barreiro slot opens because the electric-fleet rollout, after a difficult start, is now operating with regularity — Ribeiro Rei's words on the operating side. With 10 boats in the water and Seixal already running fully electric, TTSL has the spare capacity to add a third regularly-served terminal on the Margem Sul without breaking the current service pattern. Phasing the launch as a weekends-only pilot lets the operator load-test the Barreiro pier and crewing rotation without exposing weekday commuter flows to teething problems.

What this means for expats

For residents of Seixal, Barreiro and the surrounding south-bank parishes — and for tourists or weekenders heading to Barreiro's industrial-heritage waterfront, the Coina riverside, or the Mata da Machada — June will mark the first time the two municipalities have been linked by a direct passenger boat. Before this, getting from Seixal to Barreiro by public transport meant either a Fertagus connection through Pragal and back, or a bus through Coina, both of which are slower than a direct river crossing. The Lisbon–Cais do Sodré leg of the Seixal–Barreiro–Lisboa pattern also gives Barreiro residents a non-Fertagus route into central Lisbon at a time when the rail operator's reliability has slipped.

Practical points to watch as the schedule firms up: TTSL has not yet published the integrated fare for the new Seixal–Barreiro segment, and the weekday service window is conditional on the operator working through its remaining vessel-acceptance issues. The full schedule, ticket structure and integration with the Navegante passe (which already covers the Seixal and Cacilhas corridors) are expected to be published closer to the June start.

For now, the headline is that a piece of Lisbon-region transport infrastructure that has been promised on and off for more than a decade has a confirmed launch month, and an electric fleet under it.