Fort Myers Airport to Sanibel Island: Distance and Transfers

How far RSW is from Sanibel

Southwest Florida International Airport sits in Fort Myers, about 25 miles from Sanibel Island. The drive runs roughly 40 to 50 minutes and ends by crossing the Sanibel Causeway, the only road that connects the island to the mainland. Travel time swings with traffic, since the causeway backs up in the morning toward the island and in the late afternoon heading off it.

The Sanibel Causeway

Every trip onto Sanibel crosses the Sanibel Causeway. The causeway was heavily damaged by Hurricane Ian in 2022 and has since been rebuilt and reopened, carrying normal traffic again. A toll applies when you drive onto the island, with no charge to leave. Because it is the single point of access, plan around the heavier flows, especially on weekends and around midday when beach traffic peaks.

Getting from the airport to the island

A rental car is the standard choice, since Sanibel and neighboring Captiva have little public transit and you will want a car for the beaches, shops, and grocery runs. For on-site rental cars at RSW, leave baggage claim and walk across the street to the Rental Car Service Center on the ground level of the parking garage. A rideshare or taxi works for a couple traveling light and heading straight to a rental, though arranging a rideshare back from the islands can be harder. Some island resorts offer a paid transfer, which is worth checking before you book a car.

Planning the drive and the crossing

From RSW the route runs west through Fort Myers toward the coast and onto the causeway. Give yourself a buffer at peak hours, when the single causeway slows the whole trip. Once on Sanibel, the island speed limits are low and strictly enforced, and the main road can be busy near the beaches, so the last few miles often take longer than the distance suggests.

Deep Arrival recommendation

For most Sanibel trips, rent a car at RSW so you have freedom on the islands, and time your causeway crossing to avoid the worst beach traffic. Confirm a resort transfer only if you would rather not drive, and always plan for the causeway toll and a traffic buffer on arrival and departure days.