L'Île-Rousse–Sète: what our readings show
On the L'Île-Rousse–Sète route, our readings of 20 July 2026 cover one adult foot passenger in a reclining seat, for departures recorded in June, August, September and October 2026. The entry price of the window is €27.30, for a departure on 28 September 2026 with Corsica Ferries; the same profile climbs to €88.95 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, over a season running from April to October.
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 in a reclining seat settles at €46.56, its floor at €27.30.
September 2026 at the floor, August 2026 at the peak
The window reads in four months. June 2026 comes out at €41.68 on average, with an entry price of €36.00. August 2026 breaks away upwards, to €88.95 on average for a minimum still at €78.10. The return to school brings prices down: September 2026 is the lowest of the window, at €30.40 on average and €27.30 at the floor. October 2026 climbs back to €43.80 on average (€41.30 at its lowest). Between August and September, the recorded average for this profile is cut by nearly three.
Monday rather than Tuesday
The departure day weighs clearly on this route. For the foot passenger in a reclining seat, Monday comes out at €35.23 on average, Saturday at €43.80, while Tuesday climbs to €88.95. The trough therefore falls early in the week.
The cheapest dates
The first six dates in the ranking all fall on a Monday: €27.30 on 28 September 2026, €28.00 on 7 September 2026, €29.30 on 21 September 2026, €36.00 on 29 June 2026, €37.00 on 14 September 2026 and €37.03 on 22 June 2026. You have to go down to 3 October 2026 (a Saturday, €41.30), then to 24 October 2026 (a Saturday too, €46.30), before another day appears. All these crossings are operated by Corsica Ferries.
Leaving from another port for Sète
L'Île-Rousse is not the cheapest departure port recorded towards Sète, at least not on average. From Ajaccio, again with Corsica Ferries, the foot passenger in a reclining seat starts at €32.00 for a departure on 1 July 2026 and settles at €36.48 on average. L'Île-Rousse shows a lower floor, €27.30, but a markedly higher average, €46.56: on the entry price L'Île-Rousse wins, on average Ajaccio moves ahead.
What these readings cover
These prices are one-way fares for a foot passenger in a reclining seat, recorded on 20 July 2026 for departures in June, August, September and October 2026; July and the off-season months are not recorded out of L'Île-Rousse towards Sète. According to Corsica Ferries, this is a seasonal route, open from April to October and limited to a single weekly departure from April to September: it does not run all year round, which our window of readings reflects. A return trip assembled from two departures actually recorded comes to €63.00: €28.00 outbound on 7 September 2026 and €35.00 back on 22 September 2026, with Corsica Ferries in both directions. The opposite direction, Sète–L'Île-Rousse, is the subject of separate readings.