How to Get to Isle Royale National Park: Ferries, Seaplane & Logistics Guide!

Planning a trip to Isle Royale requires a bit of extra coordination simply because you cannot drive onto the island. Your vehicle stays parked on the mainland for your entire stay!

Important Seasonal Note: Isle Royale is a seasonal park. It is completely closed every winter from November 1 through April 15. Commercial ferries and seaplanes only operate from mid-May through September, so you will want to plan your trip within that summer window!

Where you drive depends on which state you start in and where you want to land on the island:

Michigan Departure Ports (Upper Peninsula)

• Houghton: Board the Ranger III ferry (drops off at Rock Harbor, with select direct runs to Windigo).
• Copper Harbor: Board the Isle Royale Queen IV ferry (drops off at Rock Harbor).
• Hubbell: Fly with Isle Royale Seaplanes (drops off at Rock Harbor or Windigo).

Minnesota Departure Port (North Shore)

• Grand Portage: Board the Sea Hunter III or Voyageur II ferries (drops off at Windigo, Rock Harbor, and remote backcountry docks).

Whether you cross Lake Superior by water or take the seaplane, every transport service enforces strict schedules, check-in procedures, and baggage policies. Here is what you need to know:

• Watch the time zones: Isle Royale National Park and all Michigan ports operate on Eastern Time (ET). However, Grand Portage, Minnesota operates on Central Time (CT). NPS recommends staying on Central time for your whole trip if you’re taking the Grand Portage ferries.
• Arrive early for check-in: Plan to show up at your dock or airfield 30 to 60 minutes before departure, or up to 90 minutes early if you are loading a canoe, kayak, or motorboat. If you are late, you will get left behind.
• Luggage weight limits: Every transportation operator has its own baggage limits, as well as rules for carry-on bags so check the requirements for your specific ferry or flight before packing.
• Prohibited items: You can bring camping stove fuels (isobutane canisters or white gas) on the ferries as long as you follow their packing guidelines. However, no ferries transport loose liquid gasoline. Stove fuel cannot be brought aboard the seaplane. If you fly, you can purchase white gas or isobutane fuel at the camp stores in Rock Harbor and Windigo, or snag leftover canisters from the community donation bins.

The main island is about 45 miles long (the park extends over 50 miles) with two main entry points on opposite ends of the island:

• Rock Harbor (East End): This is the busier, more developed hub featuring the Rock Harbor Lodge, a full-service marina, restaurant, gift shop, visitor center, and access to several popular day hikes. 
• Windigo (West End): A quieter harbor with a visitor center, camp store, Washington Creek, and western trailheads.

You can read all about the best things to do on Isle Royale in both Rock Harbor and Windigo, including day hikes, multi-day backpacking routes, and the best ways to paddle Lake Superior or inland lakes! Plus, we share our personal experience spending 7 days on the island. 

• Route: Houghton, MI to Rock Harbor (East End) with select direct runs to Windigo
• Mainland Time Zone: Eastern Time (ET)
• Mainland Parking: Parking at the Houghton Visitor Center ferry terminal is free.
• Travel Time: ~6 hours each way. Departs 9:00 am ET.
• Price: $80 adult one-way, $40 for children ages 1–15 (free under 1). 
• Operating Schedule: Late May to early September. Tue & Fri to the island, Wed & Sat back. Direct Windigo trips only on Jun 15, Jul 13 and Aug 10.
• Book Your Spot: Official National Park Service reservations via Pay.gov

As the official 165-foot ferry owned and operated by the National Park Service, the Ranger III is the largest vessel servicing Isle Royale. Carrying up to 128 passengers, its sheer size offers the smoothest ride across Lake Superior, making it the best choice if you are prone to seasickness!

The 73-mile voyage takes 6 hours each way from Houghton, Michigan to Rock Harbor. In the first hour you cruise the Keweenaw Waterway and pass under the Portage Lake Lift Bridge, (among the largest vertical lift bridges in the world!), before heading into open water. As you draw close to the island, you will also get fantastic views of the historic Rock Harbor Lighthouse.

Inside, you will find indoor lounges with cushioned seats and large picture windows, plus spacious outdoor deck space where you can walk around and enjoy the lake views. An onboard cafe sells lunch and snack items, but it’s smart to bring your own food, drink and a warm jacket too.

Because the trip takes 6 hours each way, you cannot do a single-day round trip on the Ranger III. It is best suited for multi-day backpackers, campers, and anyone bringing a canoe or kayak onto the island!

Local Coffee & Food: Before boarding in Houghton, grab a hot coffee at Camp Coffee Company! For boat snacks or trail lunches, stop by the Keweenaw Co+op Market & Deli. They have incredible freshly made sandwiches, grab-and-go items, local pastries, and drinks!

• Route: Copper Harbor, MI to Rock Harbor (East End)
• Mainland Time Zone: Eastern Time (ET)
• Mainland Parking: $10 per night, paid in cash, check, or card during morning check-in
• Travel Time: ~3 hours 45 minutes each way. Departs 8:00 am ET.
• Price (per person): $175 round-trip ($87.50 one-way) for adults, $125 for children (12 and under). 
• Operating Schedule: Mid-May to September. Sails 2 to 7 days a week depending on the month, daily in August. 
• Book Your Spot: Isle Royale Line

Departing from the very tip of Michigan’s Keweenaw Peninsula in Copper Harbor, the Isle Royale Queen IV is the fastest boat route from Michigan over to the island. While driving all the way up to Copper Harbor adds extra road time through the Upper Peninsula, the scenic pull-offs and lighthouses along US-41 make the drive worthwhile!

Because the ship makes a complete round-trip crossing every sailing day, it’s the best ferry choice for day-trippers who want roughly 3 hours to explore Rock Harbor.

Inside, the boat features an enclosed cabin with booth seating, alongside an open-air top deck. A small snack bar on board sells snacks and drinks but we recommend grabbing breakfast or picking up a packed lunch in Copper Harbor before heading down to the dock! 

Note on Day Trip Weather Policy: If Lake Superior gets rough with waves averaging 5 feet or higher on the morning of a scheduled day trip, passengers who decide not to sail can get a 95% courtesy refund at the dock.

• Route: Grand Portage, MN to Windigo, Rock Harbor, and remote backcountry docks (operates a 2-day clockwise circuit around the island)
• Mainland Time Zone: Central Time (CT) 
• Mainland Parking: $5 per day at the marina lot, paid upon return (charged by the village of Grand Portage, not the ferry)
• Travel Time: 2 hours to Windigo; 7.5 hours total to Rock Harbor. Departs 7:30 am CT.
• Price (per person): $110.50 adult / $100.50 child (one-way between Grand Portage and any island stop). Inter-island shuttle fares between backcountry docks range from $90.50 to $105.50 for adults ($85.50 to $100.50 for children)
• Operating Schedule: May to late September. Outbound Mon, Wed & Sat, returning Tue, Thu & Sun. No Friday sailings. Fewer days in May and late September. 
• Book Your Spot: Grand Portage Isle Royale Transportation Lines

Departing from Minnesota’s North Shore (an area packed with incredible state parks and things to do!), this 65-foot aluminum vessel carries up to 46 passengers and doubles as an official U.S. Mail boat for Isle Royale, delivering mail and supplies alongside island travelers!

The boat drops visitors off at Windigo before continuing along the island’s northern coastline to service remote backcountry docks like McCargoe Cove, Belle Isle, Daisy Farm, Chippewa Harbor, and Malone Bay.

Because it circumnavigates the entire island over two days and stays overnight at Rock Harbor, the Voyageur II is easily the most versatile ferry for backpackers and paddlers looking to plan point-to-point hikes or paddling trips. Just keep in mind that intermediate backcountry dock stops only occur if passengers have pre-arranged pick-ups or drop-offs when booking their tickets.

Onboard, seating consists of an enclosed passenger cabin with bench and booth seating, alongside small open deck spaces near the bow and stern, plus onboard restrooms. Because there is no food or drink service onboard, you will want to pack plenty of snacks, a full lunch, and water for the crossing!

• Route: Grand Portage, MN to Windigo (West End)
• Mainland Time Zone: Central Time (CT) 
• Mainland Parking: $5 per day at the marina lot, paid upon return (charged by the village of Grand Portage, not the ferry)
• Travel Time: ~1.5 hours each way (the fastest ferry crossing from Minnesota). Departs 8:30 am CT.
• Price (per person): $110.50 adult one-way ($100.50 under 16); $120.50 same-day round trip ($110.50 under 16). 
• Operating Schedule: Mid-June to early September. Runs 4 days a week in early summer and mid-August (Wed–Sat), and 5 days a week during peak mid-summer (Wed–Sun). 
• Book Your Spot: Grand Portage Isle Royale Transportation Lines

Also operated by Grand Portage Isle Royale Transportation Lines, the Sea Hunter III is a 65-foot aluminum vessel powered by twin Detroit diesels. It was actually originally built for service out on the North Atlantic, but today it offers the fastest water route between Minnesota and Isle Royale National Park!

Because it makes the 90-minute crossing directly to Windigo on the island’s west end, it’s the best choice for anyone wanting to do a quick day trip to Windigo by ferry, giving you about 4 full hours to explore land before returning.

Aboard the boat, passengers enjoy narrated sightseeing as they cross Lake Superior, with seating available on the open bow, stern, and side decks, alongside a small interior cabin and restrooms. Cabin seating is limited, so bring rain gear in case the open decks get wet or rough. There’s no food service onboard, so bring your own food and drinks.

• Route: Hubbell, MI to Rock Harbor or Windigo
• Mainland Time Zone: Eastern Time (ET) 
• Mainland Parking: $10 per day ($20 per day for oversized vehicles) at the Hubbell seaplane base lot
• Length of Time: 45 minutes each way
• Price (per person): $289 one-way; $420 round-trip or three-way drop-off; $420 day trip
• Operating Schedule: Late-May through mid-September. Several flights daily (weather permitting)
• Book Your Spot: Isle Royale Seaplanes

If you want to maximize your time on the island and skip hours of long water crossings, booking a flight with Isle Royale Seaplanes is the fastest option!

While it is more expensive than taking a ferry, you will save hours of travel time each way, which is a huge advantage! This gives day-trippers up to 7 or 8 full hours to explore the island (compared to just 3 or 4 hours on the ferry), and lets backpackers hit the trail almost immediately after landing.

The main risk with flying is weather dependency. Seaplanes cannot take off in bad weather, thick fog, or heavy smoke. This summer, active wildfire smoke caused flight cancellations, leaving some travelers temporarily stranded on the island. 

The NPS warns that transportation delays can occasionally last multiple days. If a flight is canceled, Isle Royale Seaplanes will work with passengers to find alternate transportation. Build some flexibility into your itinerary and bring enough food, medication, and other essentials to handle a delay.

Location Note: Keep in mind that the seaplane no longer operates from Minnesota. All departures now leave from Hubbell, Michigan.

1. Where are you starting from?

• If you are road-tripping through Minnesota’s North Shore: Departing from Grand Portage via the Voyageur II or Sea Hunter III makes the most sense.
• If you are exploring Michigan’s Upper Peninsula: Departing from Houghton, Copper Harbor, or Hubbell is your best route.

2. What is your itinerary on the island?

• Day Trip: We strongly recommend heading to Rock Harbor via the Isle Royale Queen IV or taking the Seaplane. Rock Harbor offers far more scenic day hikes (like Scoville Point), better dining options, and a lodge.
• Point-to-Point Backpacking: If you plan to hike across the whole island (e.g., Windigo to Rock Harbor), the Seaplane is the best choice because they fly daily to both ports and offer three-way drop-off booking. Alternatively, the Voyageur II ferry from Grand Portage is the only boat that consistently services both ends of the island.
• Hybrid Route: You can also combine methods! For example, take the seaplane to Windigo, hike to Rock Harbor, and ride the Ranger III ferry back to Houghton (then taxi back to your car).

3. Which day of the week are you traveling?

Unlike standard public transit, most ferries only sail on specific days of the week. The seaplane flies every day of its season, and the Queen IV sails daily in August.

4. Which has available seats?

Because transport capacity to the island is capped, ferry seats and seaplane flights sell out months in advance. Sometimes your choice will simply come down to which boat or flight still has open spots for your dates!