Starlink vs VSAT: Which Satellite Internet is Best for Your Vessel in 2025?

Satellite internet has been the lifeblood of vessel communications for decades, but Starlink's entry into the maritime market has fundamentally changed what ship operators in Singapore can expect from their connectivity. Traditional VSAT providers have dominated for years — but are they still the right choice in 2025?

How They Work

Traditional VSAT (Very Small Aperture Terminal) uses geostationary satellites orbiting at 35,786 km above Earth. This long distance introduces significant latency — typically 600–800ms round-trip — making real-time applications like video calls and cloud platforms feel sluggish. Starlink uses a constellation of low-earth orbit (LEO) satellites at just 340–1,200 km altitude, delivering latency of 20–60ms. The difference is immediately noticeable in day-to-day use.

Coverage: Where Can You Use Each?

VSAT has excellent global coverage, particularly in high-traffic shipping lanes across the Pacific, Indian Ocean, and North Atlantic. Established providers like Inmarsat and Viasat have decades of infrastructure investment in these routes. Starlink Maritime is now available across most of Singapore's regional waters, including the Strait of Malacca, South China Sea, Bay of Bengal, and beyond. As of 2025, Starlink covers over 98% of the world's ocean surface, making it genuinely competitive on global routes. For vessels operating primarily in Southeast Asian waters, Starlink now provides coverage that matches or exceeds traditional VSAT providers.

Speed and Latency: A Night-and-Day Difference

In our installations across vessels calling at Singapore, Starlink Maritime consistently delivers 100–250 Mbps download and 10–50 Mbps upload speeds. Compare this to typical VSAT speeds of 5–30 Mbps download. More importantly, Starlink's low latency makes applications that were previously painful on VSAT — Microsoft Teams video calls, cloud-based fleet management systems, remote desktop access — work as smoothly as they would on a shore-side office connection. For crew welfare, this means real streaming services, video calls home, and social media that actually work.

Cost Comparison

Starlink Maritime plans start from approximately USD 250/month for the flat-rate plan, with the terminal hardware costing around USD 2,500. Traditional VSAT contracts typically involve higher monthly fees (often USD 500–3,000+ depending on data allowance and provider) with long-term contract commitments and complex pricing structures. For smaller vessels and short-sea shipping operators, Starlink can offer significant cost savings. Larger vessels on long-haul routes may find that VSAT's bundled services and global support infrastructure still justify the premium.

Reliability and Support

VSAT providers have mature support infrastructure with maritime-specific NOCs (Network Operations Centres) that understand the needs of commercial shipping. Starlink's support is still maturing for the enterprise maritime market, though it has improved considerably. ICT Marine Solution provides managed monitoring and first-line support for all Starlink installations we carry out in Singapore, ensuring any connectivity issues are identified and escalated promptly regardless of the underlying satellite provider.

Our Recommendation

For most vessels operating in Southeast Asian and regional waters, Starlink Maritime now represents the better choice in terms of performance, user experience, and value. For large commercial vessels on long-haul global routes with complex communication needs, a hybrid approach — Starlink as primary with VSAT as backup — provides the best of both worlds. Contact ICT Marine Solution for a free assessment of the right connectivity solution for your fleet.