Does Starlink work everywhere on Long Island Sound?

Yes. Long Island Sound is fully inside Starlink's Roam and Mobile Priority coverage zones. We routinely see 100 to 200 plus Mbps download from Greenwich east through Stonington, both in slip and underway. There are no dead zones on the Sound itself.

Will Starlink work on the run to Block Island and Newport?

Yes. The runs from Connecticut to Block Island, Newport, Cuttyhunk, and Martha's Vineyard sit comfortably inside Starlink Roam coverage on Standard hardware, and inside Mobile Priority for in-motion offshore use. Speeds in the 50 to 150 Mbps range are typical underway with a properly mounted antenna.

Does Starlink work on the way to the Bahamas?

The U.S. East Coast inshore from Maine to the Florida Keys is inside Roam and Mobile Priority coverage. The Gulf Stream crossing and the Bahamas themselves require Mobile Priority or the Maritime data plan for reliable in-motion service. Owners running south for the season should plan to subscribe to Mobile Priority for at least the offshore legs.

Do I need Starlink Maritime hardware to run to Block Island?

No. Standard with the Flat High Performance antenna handles every Northeast coastal run we deliver — including Block Island, Newport, Nantucket, and Provincetown — without losing lock. Maritime hardware becomes the right answer for offshore-heavy use, charter operations, or vessels routinely running beyond U.S. coastal waters.

Are there any coverage gaps in the Northeast?

Not on the water. The only gaps Northeast boaters encounter are obstruction-related — a tight harbor where a building or hillside blocks the southern sky, or an antenna mounted under a hardtop edge. These are install-quality issues, not coverage issues. The satellite footprint is continuous from the Sound to the Bay of Fundy.

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May 2026

Starlink coverage on the runs you actually make: Long Island Sound, Block Island, Newport, Nantucket, the Bahamas.

Coverage maps in the abstract are not very useful. What boaters want to know is whether Starlink will hold a connection on the runs they actually make — Greenwich to Block Island, Stonington to Newport, Branford to Nantucket, the southbound trip to the Bahamas. Here is the route-by-route view from helm.

5 min read Hardware, Networking, Connecticut

Starlink's published coverage maps draw the picture in continents. Boaters think in passages. The two views rarely line up cleanly, and the question we get most often on a quoting call is some version of "will it work where I actually go?". This article answers that — route by route, on the water Northeast boaters actually use.

The short version: every recreational route from Long Island Sound through southern New England is inside Starlink's coastal coverage envelope on Standard hardware. The Bahamas run requires Mobile Priority. There are no satellite-side coverage holes on the routes below — only install-side ones, and those are the part we control.

"Coverage maps are drawn in continents. Boaters think in passages."

Long Island Sound

Greenwich to Stonington — fully covered, edge to edge.

Long Island Sound is the easiest answer in the article. The entire body of water — from Throgs Neck east to Fishers Island, north shore and south shore — sits inside Starlink Roam coverage and inside Mobile Priority for in-motion use. We have not yet measured a Sound location where a properly installed Standard kit failed to lock.

Speeds in slip.100 to 200 plus Mbps down across our Connecticut installs — Greenwich, Stamford, Norwalk, Westport, Branford, Essex, Mystic, Stonington. Latency 20 to 60 ms.
Speeds underway.Modest dip, typically 70 to 150 Mbps, with the Flat High Performance antenna holding lock through normal Sound chop.
Anchorages.The Thimble Islands, Duck Island Roads, Hamburg Cove, Mystic River, Fishers Island Sound — all clean. The only Sound spots that give us trouble are tight inner harbors with tall buildings or hillsides cutting into the southern sky, and that is an install-side problem we solve at the survey.
Coverage tier needed.Roam ($50/month) is sufficient for at-anchor Sound use. Mobile Priority is the right call for owners who routinely use the connection underway and care about prioritized throughput in summer congestion.

For the broader CT-specific picture, see our Connecticut installation guide.

Block Island and the eastern run

Stonington to Block Island, Newport, Cuttyhunk, and the Vineyard.

The next ring of cruising — east from Fishers Island Sound to Block Island, Newport, Cuttyhunk, Martha's Vineyard, and Nantucket — is the most-asked-about coverage question we field. The answer is the same. Every one of those runs is inside Starlink Roam and Mobile Priority on Standard hardware.

Block Island Sound.Continuous coverage. Speeds underway 70 to 150 Mbps. Great Salt Pond at anchor reads identical to a Sound slip.
Newport, Narragansett Bay, the East and West Passages.Full coverage. Brenton Reef and the run east of Point Judith hold lock without interruption.
Buzzards Bay, Cuttyhunk, Martha's Vineyard, Nantucket.Fully inside the coastal envelope. The runs across Vineyard and Nantucket Sounds — including Muskeget Channel and the run to Great Round Shoal — read clean.
Provincetown, Cape Cod Bay, the Bay of Fundy north.Same story. The Northeast coastal envelope is continuous from the Connecticut state line to Maine.

None of these runs require Maritime hardware. Standard with a properly chosen mount handles them. For the deeper Maritime-vs-Standard read on this exact question, see our Maritime overkill article.

The southbound run

Connecticut to the Bahamas — what to expect leg by leg.

Owners taking the boat south for the season ask the most pointed coverage question of all. Here is the realistic picture, leg by leg.

Long Island Sound to the Chesapeake.Inside Roam and Mobile Priority the whole way. Inshore via the New Jersey coast, Cape May, the Delaware, the C&D Canal, the Chesapeake — fully covered. Standard hardware is fine.
Chesapeake to Norfolk and the ICW.Continuous coverage. The narrow ICW stretches occasionally clip the antenna with overhanging trees or bridges — that is geometry, not coverage. Coverage itself is uninterrupted.
Norfolk to Beaufort, Charleston, and Florida.Inside Roam coverage. Offshore hops between inlets are inside Mobile Priority. Standard hardware continues to work.
The Gulf Stream crossing.This is the leg where Mobile Priority earns its keep. The crossing is in-motion offshore use in conditions that can spike sea state quickly. The antenna handles it; the data plan needs to be Mobile Priority for reliable underway service.
Bahamas — Bimini, Berry Islands, Abacos, Exumas.Mobile Priority covers it. Subscribers to the Mobile Priority data tier see Sound-equivalent throughput in the Abacos and Exumas. Roam-only subscribers should expect inconsistent service in motion offshore of the Banks.

Owners making the run more than once usually stay on Mobile Priority year-round and adjust the data tier seasonally. For the plan-side breakdown, see our Maritime vs. Roam guide.

"There are no coverage holes on these routes. The only gaps are install-side, and those are the part we control."

When coverage is not the problem

The four scenarios where boaters blame coverage and shouldn't.

When a Connecticut owner tells us Starlink "doesn't work" somewhere, the cause is almost never coverage. It is one of four install-side issues, all of which are fixable.

Obstructed sky view.Antenna mounted under an arch lip, near a radar dome, or beside a mast that blocks part of the southern sky. The fix is mount location, not coverage. See our mount location guide.
Hardtop or radar interference.Mast and radar mounted between the antenna and the satellite arc. Same fix — relocate the antenna to a clear southern view.
Cable run too long or wrong type.Improvised cable runs that exceed the kit's spec degrade throughput. Looks like coverage loss; isn't.
Wrong service plan for the use.Roam subscribers on long offshore in-motion runs see service degrade — that's plan, not coverage. Mobile Priority is the answer.

If you are seeing inconsistent service on a Northeast run, the diagnostic order is mount, cable, plan — coverage almost never makes the list. Our full diagnostic walkthrough lives in the obstruction troubleshooting guide.

Plan choice by route

Matching the data plan to the cruising pattern.

Coverage and plan are different products, and getting the plan wrong is the most common reason a coverage-shaped problem shows up. Here is the rough match by use:

Sound and harbor use, mostly at anchor or in slip.Roam at $50/month. Pause it in the off-season.
Sound plus eastern New England runs in motion.Mobile Priority at $250/month for the months you use it. Pause off-season.
Southbound and Bahamas.Mobile Priority year-round, with the data tier sized to the actual use. Maritime plan only if the boat profile genuinely calls for it.
Charter and commercial operations.Mobile Priority or Maritime, year-round, no pauses. See our marinas and charter fleets guide.

For the head-to-head plan comparison, see our Maritime vs. Roam article.

Conclusion

Coverage is the easy part. Install quality is the variable.

The honest summary of every Northeast coverage question is the same: the satellites have you covered. What separates a clean install from a frustrating one is mount choice, cable routing, network integration, and the right service plan for the actual cruising pattern. That's the part we get right.

Tell us where you cruise and we'll match the kit, mount, and plan to the route. Welcome aboard.

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