L'Île-Rousse–Sète: what our readings show
On the L'Île-Rousse–Sète route, our readings from 22 August 2026 cover one adult foot passenger with a reclining seat, for departures recorded in August, September and October 2026. The entry price of the window is €37.60, for a departure on 14 September 2026 with Corsica Ferries; the same profile climbs to €81.00 on average in August 2026, the highest month on record. According to Corsica Ferries, this route runs overnight, in about 14 hours, with one departure a week from April to September.
A single company on the route
Corsica Ferries is the only company recorded on L'Île-Rousse–Sète. There is therefore neither a gap between companies nor a codeshare to weigh up: the price turns on the departure date. Across all dates, the company average for the foot passenger with a reclining seat settles at €48.80, its floor at €37.60. Our readings here cover only the foot passenger with a reclining seat, on a route that Corsica Ferries runs overnight.
September 2026 at the floor, August 2026 at the peak
The window reads in three months. August 2026 occupies the peak, at €81.00 on average. Its floor goes no lower: €81.00 on 25 August 2026, the same level — and already above the average of each of the other two months in the window. The back-to-school weeks bring prices down: September 2026 is the lowest of the window, at €38.58 on average and €37.60 at the floor, for a departure on 14 September 2026. October 2026 climbs back to €53.15 on average, with a low of €46.30 on 24 October 2026. Between August and September, the recorded average for this profile falls from €81.00 to €38.58. On this single-company route, it is the departure date that sets the price, not the choice of company.
Monday rather than Tuesday
The departure day weighs clearly on this route. For the foot passenger with a reclining seat, Monday comes out at €38.58 on average, Saturday at €53.15, while Tuesday climbs to €81.00. The trough falls on Monday. Tuesday, whose average matches that of August 2026, stays clearly above the other two days recorded.
The cheapest dates
The four lowest dates all fall on a Monday in September 2026: €39.00 on 7 September, €39.70 on 28 September, €38.00 on 21 September and €37.60 on 14 September. Two Saturdays in October 2026 come next: €46.30 on 24 October, then €60.00 on 3 October. The top of the list goes to a Tuesday in August 2026, €81.00 on 25 August — the only August date on the list, and the dearest. All these crossings are operated by Corsica Ferries.
Leaving from another port for Sète
Towards Sète, L'Île-Rousse holds the floor: €34.20 for a departure on 26 October 2026, with Corsica Ferries. Ajaccio opens just above, at €37.60 for a departure on 14 September 2026, the same company on either side. The ranking flips on the average: Ajaccio settles at €48.80, against €37.30 out of L'Île-Rousse. The best one-off fare and the everyday price do not point to the same port.
What these readings cover
These prices are one-way fares for a foot passenger with a reclining seat, recorded on 22 August 2026 for departures in August, September and October 2026; the other months are not recorded out of L'Île-Rousse towards Sète. According to Corsica Ferries, the route is limited to a single weekly departure from April to September, and does not run all year round, which our window of readings reflects. A return trip assembled from two departures actually recorded comes to €70.60: €37.60 outbound on 14 September 2026 and €33.00 back on 22 September 2026, with Corsica Ferries in both directions. The opposite direction, Sète–L'Île-Rousse, is the subject of separate readings.