Starlink for Boats 2026: Plans, Dishes and Marine Setup Guide

Last reviewed: September 30, 2026. Starlink for boats is the same low-orbit satellite service RVers use, running on a Mini or Standard dish mounted on a rail, arch or hardtop. Using Starlink on a boat works on lakes, rivers and coastal water on a $55-$175 Roam plan. Past 12 nautical miles you need Ocean Mode or a Priority plan, and in August 2026 Starlink added a $185/month Personal Maritime plan for small-boat cruisers. Plan facts below follow Starlink's service plan descriptions and reporting from the Mobile Internet Resource Center.

Here for an RV install, not a boat? Our Starlink Mini RV setup guide walks through mounting, power and app setup on a motorhome or trailer step by step, and the full-time Starlink RV setup guide covers the Standard dish.

If you have spent any time on the water, you know the cell signal disappears about the time the scenery gets good. Whether you run a center console on a lake, cruise the coast on weekends, or live aboard full time, Starlink is now genuinely practical at the helm. The catch is that "on a boat" covers everything from a calm marina to 200 miles offshore, and the right setup looks very different at each end of that range.

This guide covers the decisions that matter: which dish to run, which plan keeps you legal and online, how to mount and power the system in salt air, and where the real limits are. If you are new to the hardware, start with our portable Starlink complete guide and come back here for the saltwater specifics.

Q1Using Starlink on a boat: speeds, coverage and in-motion use

Starlink on a boat works better than most people expect. The dish is a phased-array, electronically steered antenna with no moving parts. A motorized marine dome hates a pitching, rolling deck; an electronically steered panel re-aims its beam in software, so moderate chop barely registers.

Near shore, performance lands in the 50-200+ Mbps download and 5-20 Mbps upload range. That is plenty for video calls, streaming, chart and weather downloads, and remote work. The two things that change your experience are how far offshore you go and which plan you carry.

Coverage and the 12 nautical mile line

• Inland and territorial waters are covered on Roam. Starlink's Roam terms cover inland waterways and territorial waters, generally defined as 12 nautical miles from the coastline. Lakes, rivers, bays and the ICW are all fine.
• Roam's on-water use is capped. The Mobile Internet Resource Center reports that included on-water use on Roam is limited to five consecutive days and 60 total days per year. Weekend boaters rarely hit it; liveaboards will.
• Beyond 12 nautical miles you pay per GB or go Priority. Open ocean requires Ocean Mode (Roam Unlimited or Personal Maritime only) or a Global Priority plan. See the plan breakdown below.
• International trips have a clock. Since July 14, 2026, Roam 100GB and 300GB work only inside your home region (the US, Canada and US territories count as one). Roam Unlimited allows 30 days abroad per trip, which matters for Bahamas and Caribbean runs.

Does Starlink work while the boat is moving?

Yes. Every current Roam, Personal Maritime and Priority plan supports in-motion use, and the Mini and Standard both track satellites while underway. The practical limits are physical, not contractual. On sailboats, owners on forums like Cruisers Forum report dropouts when the boat heels hard or the mast swings through the dish's view on a tack. Mount high and clear of the rig, and expect brief blips in heavy seas.

Q2Starlink for boats by use case: lake, coastal and offshore

The bottom line: most boaters need a Mini and a Roam plan, and only true passagemakers need to pay ocean rates. Use this table to match your boating to hardware and a plan.

Use case	Typical boat	Best dish	Best plan (Sept 2026)	Est. monthly cost	Key limit
Lake and river	Pontoon, bass boat, runabout under 25 ft	Mini	Roam 100GB	$55	5 consecutive / 60 days a year on water
Coastal weekends	Center console, bowrider, day sailer 20-35 ft	Mini	Roam 300GB	$80	Stay inside 12 nm and your home region
Bahamas or Caribbean trips	Coastal cruiser or trawler 30-45 ft	Mini or Standard	Roam Unlimited	$175	30 days abroad per trip; Ocean Mode $6/GB
Liveaboard, international cruising	Sailboat or trawler, non-commercial	Standard or Mini	Personal Maritime	$185	No land use; via Starlink support only
Offshore fishing, ocean passages	Sportfisher, bluewater sailboat	Standard or Performance	Global Priority 50GB+	$250-$2,150	Data is metered by the bucket

If you fish offshore only a few times a season, Roam Unlimited plus occasional Ocean Mode can work. Once you expect more than about 10GB of offshore data a month, Global Priority is cheaper.

Q3Which dish for a boat: Mini vs Standard vs Performance

There is no single best dish for every boat. Match the hardware to the hull, the power budget and how far out you go.

Spec	Starlink Mini	Standard (Standard 4 / 4X, formerly Gen 3)	Performance (Gen 3)
Weight	2.43 lb	about 6.4 lb (dish)	heavier, marine-grade build
Typical power draw	20-40W	75-100W	higher than Standard
Power input	12-48V DC	12V via a step-up adapter to the router	AC or DC kit, varies by config
Weather rating	IP67	IP67	built for high-vibration, offshore use
Hardware price	$249 list ($199 sale)	$349	about $1,999 via marine dealers
Best for	Lakes, coastal, small craft	Liveaboards, bigger boats	Commercial and offshore vessels

Hardware prices are as of September 2026. The Standard spec comes from Starlink's Standard kit specification sheet.

Starlink Mini: the small-craft and coastal champion

The Mini is the standout choice for lake boats, day cruisers and many coastal sailors. It is built for mobile, low-power, space-constrained installs:

• Weighs just 2.43 lbs and mounts on a rail or stows in a locker.
• Built-in 12-48V DC barrel jack runs straight off a boat's 12V system with no inverter.
• Sips power at roughly 20-40W, which matters when you live on a battery bank.
• IP67 rated, so rain and spray are not a problem, though you should still rinse off salt.
• WiFi 5 with up to 128 devices for onboard coverage.

The honest trade-offs: WiFi 5 rather than WiFi 6, and no Ethernet cable in the box. The Mini has one latching LAN port sealed by the Starlink Plug; wiring it needs the Mini Starlink cable (sold separately) or a standard Ethernet cable, which drops the IP67 rating. For a deeper look at the Mini on the move, see our Starlink Mini for travel guide and the head-to-head in Starlink Mini vs Gen 3 for RV.

Standard and Performance: bigger boats, harder conditions

For larger cruisers, liveaboards and anyone going truly offshore, step up:

• The Standard dish (renamed Standard 4 / 4X in 2026) has more antenna area and handles more users at once. It draws 75-100W, so budget your batteries before you buy.
• The Performance (Gen 3) kit replaced the old Flat High Performance dish (which Starlink now calls Performance Gen 2) as SpaceX's rugged option for offshore, high-vibration and commercial use. Marine dealers list maritime kits around $1,999.

Rule of thumb: Mini for small craft, lakes and coastal weekends; Standard for liveaboards and bigger boats; Performance only for commercial or heavy offshore use.

Q4Which plan for a boat: Roam, Personal Maritime or Global Priority

This is where boaters trip up. The dish gets you on the network; the plan decides where you can use it and how you are billed. Prices below match our best Starlink plan for RV guide and were checked on September 30, 2026.

Plan	Price	Where it works	Ocean Mode past 12 nm	Land use
Roam 100GB	$55/month	Home region, inland and territorial waters	Not available	Yes
Roam 300GB	$80/month	Home region, inland and territorial waters	Not available	Yes
Roam Unlimited	$175/month	Home region plus 30 days abroad per trip	$6/GB from Sept 27, 2026	Yes
Personal Maritime	$185/month	Territorial waters worldwide, no 30-day limit	$6/GB	Prohibited
Global Priority	$250 (50GB), $650 (500GB), $1,150 (1TB), $2,150 (2TB)	Anywhere, including open ocean	Included in the data bucket	Yes

Roam: lakes, rivers and coastal water

Roam is the affordable choice for most recreational boaters. Roam 100GB or 300GB covers lake and coastal boating in the US and Canada, and Standby Mode pauses service for $10/month in the off-season. The full plan structure is in our Starlink RV plans and pricing breakdown.

Roam Unlimited and Ocean Mode: occasional offshore trips

Ocean Mode is a per-GB add-on that lets Roam Unlimited and Personal Maritime connect beyond 12 nautical miles. It rose from $2/GB to $6/GB on September 27, 2026 for Roam Unlimited. Once switched on, every GB is billed at that rate, wherever you are, until you turn it off. Some boaters have reported $1,000+ surprise bills from forgetting, so set a reminder to switch it off at the sea buoy.

Personal Maritime: the new cruiser plan

Personal Maritime launched in late August 2026 at $185/month. It gives unlimited data in territorial waters worldwide with no 30-day return-home rule, which fixes the biggest problem for international cruisers. The catches: land use is prohibited, the terms target non-commercial boats under 40 feet (though MIRC reports some larger boats have been approved), and you sign up through Starlink customer support rather than the website.

Global Priority: real offshore passages

For ocean crossings or regular canyon runs, Global Priority is the maritime plan to beat. $250/month buys 50GB of priority data that works anywhere, including mid-ocean. At $6/GB, Ocean Mode passes that cost at roughly 10-13GB, so heavy offshore users should switch before a crossing.

Q5Mounting Starlink on a boat

A boat is the harshest mounting environment Starlink will ever see. The best Starlink boat mount puts the dish high, clear of the rig, and on hardware that will not corrode. Wind load, vibration, UV and salt spray all punish a sloppy install.

Get a clear view of the sky

The dish needs an unobstructed view of the sky. Mount it away from masts, radar arches, biminis, outriggers and VHF antennas that can shadow the beam. A high, open spot on a rail, pole, T-top or hardtop edge usually works best. Keep it out of the radar's beam path, too; a radar arch mount should sit above or well behind the open-array sweep.

Use marine-grade mounts and hardware

• For the Mini, an adjustable multi-mount built for boats and yachts is a clean solution. The Sozato multi-mount below uses an aluminum frame that clamps to rails and poles, and the Anautin tripod mount works for temporary setups on a cockpit table or flybridge.
• For rail clamps and pole adapters, look for a dedicated marine rail mount on Amazon.
• Use 316 stainless fasteners. Plain steel rusts to nothing in a season, and 304 stainless shows tea-staining fast in salt spray.

Prevent galvanic corrosion

Most Starlink mounts are aluminum, and stainless bolts in aluminum corrode quickly in salt water. This is galvanic corrosion: two dissimilar metals plus saltwater form a small battery that eats the aluminum. Coat the threads with an anti-seize barrier such as Tef-Gel or Lanocote, and use nylon or plastic isolating washers between stainless hardware and aluminum brackets.

Tame vibration and movement

Engine and hull vibration loosens fasteners and fatigues cables over time. Add anti-vibration padding under the mount, use thread locker on bolts, and leave a service loop in the cable so a rolling sea does not tug the connector. On a fast center console, check the mount after every run at speed for the first month.

Q6Powering Starlink on a boat

Power is where the Mini earns its keep on the water. On a 12V boat, run Starlink from its own fused circuit off the house bank, not from the engine start battery or the NMEA 2000 backbone.

Why the Mini's DC input is ideal

Most boats run a 12V DC house system. The Mini accepts 12-48V DC through a barrel jack, so it plugs into the boat's electrical system with no inverter in the loop. That removes the inefficiency, heat and failure point of an AC inverter and keeps draw at roughly 20-40W. The full off-grid playbook is in our guide to powering the Starlink Mini off-grid.

12V power budget at anchor

Dish	Draw	24-hour energy	12V amp-hours per day
Mini	20-40W	480-960Wh	about 40-80Ah
Standard	75-100W	1,800-2,400Wh	about 150-200Ah

In short: a single 100Ah lithium battery runs a Mini for a day at anchor, while a Standard left on 24/7 needs a serious house bank and solar or a generator. Many cruisers put Starlink on a switch and turn it off overnight.

Wiring it properly

• Use a dedicated fused circuit. Run tinned marine wire from the house bank or DC panel through a fuse or breaker sized to the cable, with a switch at the helm.
• Keep it off the NMEA 2000 backbone. NMEA 2000 power is meant for low-draw sensors and displays, not a 40-100W dish. Starlink also does not speak NMEA; it is a network device.
• Mini: a 12V step-up cable. A step-up adapter holds the Mini at a steady voltage when the bank sags under load or the engine starts.
• Standard: a 12V-to-57V adapter. It feeds the Standard's router from DC, so you skip a 1,000W+ inverter just to run the dish. Our 12V Starlink power setup guide covers wire gauges and fusing.

Portable power for small boats

On a boat with no house bank, run the Mini from a portable power station. The Jackery Explorer 1000 v2 (1,070Wh) runs a Mini for roughly 23-45 hours depending on load, or about 31-33 hours at a typical 28W draw, and recharges from shore power, the engine or a solar panel. It replaces the EcoFlow RIVER 2 Pro, which is discontinued.

Q7WiFi distribution belowdeck with a router

The Mini's built-in WiFi 5 is fine in the cockpit, but fiberglass, bulkheads, and a cabin full of metal kill signal fast. To cover the whole boat, pair the dish with a dedicated travel router.

• A router like the GL.iNet Slate AX rebroadcasts Starlink into a stronger, more configurable network and lets you fail over to marina WiFi when you have it.
• To wire the Mini to a router, use the separately sold Mini Starlink cable in its single LAN port (a standard Ethernet cable also fits but gives up the IP67 rating). For a weatherproof extension or splice on deck, add a waterproof coupler such as the EAZUSE Starlink Ethernet adapter. Many boaters instead let the router join the Mini's WiFi and rebroadcast.
• A 5G router is the cheapest backup near shore. Inside cell range it can carry heavy streaming so a Roam 100GB or 300GB allowance lasts the month.
• Most current Garmin, Raymarine and Simrad chartplotters can join WiFi, so connect them to the router to pull chart and weather updates over Starlink.
• For choosing the right model, see our roundup of the best travel routers for Starlink and RV. And since you will be doing banking and remote work over a network you do not fully control, lock it down with our Starlink VPN and security guide.

Q8Weatherproofing and salt-water care

Salt is the enemy. A little maintenance keeps the system alive for years.

• Protect every connection. Treat plugs and exposed contacts with a marine corrosion spray or dielectric grease, and seal deck penetrations with a cable gland rather than silicone alone.
• Do not trust IP67 alone. IP67 means the dish survives temporary freshwater immersion. It says nothing about salt crystals building up on connectors over months.
• Rinse after offshore trips. A freshwater rinse knocks salt off the dish and mount before it cakes on.
• Route cables to shed water. Add drip loops so water runs off rather than into connectors, and avoid low spots where moisture pools.
• Inspect regularly. Check fasteners, gaskets, and the mount each season; vibration and UV degrade everything over time.

Q9Limitations and costs

Starlink for boats is excellent, but go in with eyes open:

• Offshore is expensive. Roam starts at $55/month, but Ocean Mode now costs $6/GB and Global Priority starts at $250/month for 50GB. If you only cruise coastal, you do not need either.
• The rules keep changing. Starlink rewrote Roam's international rules in July 2026, added Personal Maritime in August and tripled Ocean Mode pricing in September. Check starlink.com before each season.
• Roam's water-use cap bites liveaboards. Five consecutive days and 60 days a year on the water is fine for weekends but not for living aboard. Personal Maritime is the fix if you qualify.
• Power and space scale up fast. The Mini is light and frugal; the Standard and Performance dishes are heavier, hungrier and pricier.
• Hardware lives hard. Salt, vibration, and UV mean marine installs need better mounts, better hardware, and more upkeep than a backyard setup.
• No Ethernet cable with the Mini. Plan for the Mini Starlink cable if you want a weatherproof wired router connection.

Q10Frequently asked questions

Does Starlink work on a boat? Yes. Near shore you can expect 50-200+ Mbps down and 5-20 Mbps up. Roam covers inland and territorial waters out to about 12 nautical miles; past that you need Ocean Mode or Global Priority.

Can you use the Starlink Mini on a boat? Yes, and it is ideal for small craft and coastal cruising thanks to its 2.43 lb weight, IP67 rating, 12-48V DC input and 20-40W draw. The trade-offs are WiFi 5 and no Ethernet cable in the box (the single LAN port needs the separately sold Mini Starlink cable).

Which plan do I need? Roam 100GB or 300GB for lakes and US/Canada coastal water, Roam Unlimited for short trips abroad, Personal Maritime ($185) for long-term international cruising, and Global Priority (from $250) for ocean passages.

How far offshore does it work? Roam stops at about 12 nautical miles. Ocean Mode ($6/GB on Roam Unlimited and Personal Maritime) or Global Priority covers the open ocean.

How much does Starlink for boats cost? $55-$185/month for coastal plans, $250/month and up for Global Priority, plus $249 list for a Mini ($199 on sale) or $349 for a Standard kit.

How do you mount it? Use a marine-grade rail or pole mount with a clear sky view, 316 stainless hardware isolated from aluminum, anti-vibration padding and corrosion protection on every connection.

What to do next

• Compare hardware in our Starlink Mini vs Gen 3 for RV breakdown to pick the right dish for your boat.
• Read the portable Starlink complete guide for the foundations of any mobile setup.
• Nail down power with how to power the Starlink Mini off-grid.
• Choose your onboard network from the best travel routers for Starlink and RV.
• Budget realistically using our Starlink RV plans and pricing guide and pick a tier with the best Starlink plan for RV breakdown.
• Wire a clean 12V circuit with the Starlink RV 12V power setup guide.
• Secure your connection with the Starlink VPN and security guide.

Related reading

• Portable Starlink: The Complete Guide
• Starlink Mini for Travel
• How to Power the Starlink Mini Off-Grid
• Starlink RV Plans and Pricing 2026
• Best Travel Routers for Starlink and RV
• Starlink RV VPN and Security Guide
• Starlink Mini vs Gen 3 for RV
• Starlink Mini RV Setup Guide
• Best Starlink Plan for RV

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