OneWeb vs Starlink: Which Is the Better Choice for Maritime Transport?

For years, the question maritime operators asked was simple: which VSAT provider should we go with? Today, the question has shifted entirely. With Low Earth Orbit (LEO) satellite networks now proven at sea, the real debate is between two LEO giants: Starlink and OneWeb. Both promise fast speeds, low latency, and global coverage. Both are genuinely transforming how vessels stay connected. But they are built differently, priced differently, and designed for different kinds of customers.

We work with shipping operators across Southeast Asia every week. The honest answer we give them is rarely "pick one." Here is how these two networks actually compare, so you can make that call with clear information.

Two LEO Networks, Two Very Different Philosophies

At the technical level, Starlink and OneWeb share the same fundamental approach: LEO satellites orbiting far closer to Earth than traditional GEO (Geostationary Orbit) VSAT systems, which means dramatically lower signal delay. That is where the similarity largely ends.

Starlink, operated by SpaceX, maintains a constellation of over 7,000 satellites orbiting at roughly 550 km altitude. The newer generation satellites include inter-satellite laser links (ISLs), which allow traffic to route through space rather than bouncing down to ground stations at each hop. For maritime users, this means more consistent coverage even in areas with sparse ground infrastructure.

Eutelsat OneWeb sits higher, at approximately 1,200 km altitude, with 648 first-generation satellites in near-polar orbits at an inclination of 87.9 degrees. The higher altitude means each satellite covers a wider footprint, producing overlapping coverage zones that reduce the frequency of connection drops during satellite handovers. That overlap is a meaningful advantage for vessels in constant motion across open ocean. OneWeb routes traffic through a distributed network of ground stations called Satellite Network Portals (SNPs) rather than inter-satellite links.

Neither architecture is universally superior. They represent different engineering trade-offs, and understanding them helps operators make the right call for their specific routes and fleet types.

Speed and Latency: What the Real Numbers Mean Onboard

The latency gap between LEO and legacy GEO/VSAT is the single biggest reason maritime operators are switching. Traditional VSAT systems can deliver latency above 560 ms, which makes VoIP calls choppy, remote vessel monitoring sluggish, and crew video calls genuinely frustrating. Both Starlink and OneWeb solve this problem.

Starlink Maritime, particularly the Flat High Performance (FHP) antenna designed for vessels and mobile platforms, delivers speeds up to 250 Mbps download with latency typically in the 20–40 ms range. For high-density crew vessels, say a container ship with 25 or more seafarers streaming and calling home simultaneously, this headroom matters.

OneWeb delivers typical download speeds of 50–150 Mbps with latency around 50–70 ms. Consistent rather than peak-chasing. For most commercial shipping operations running ECDIS updates, AIS data feeds, IoT sensor telemetry, and moderate crew internet, this is more than sufficient. OneWeb's slightly higher latency compared to Starlink rarely matters in practice for these workloads — both networks sit so far ahead of GEO VSAT that the difference is academic for most onboard applications.

Where speed becomes a real differentiator is peak-hour load. On a vessel with 20 or more concurrent crew streams, Starlink's higher throughput ceiling provides more headroom. For a smaller fishing vessel or harbor tug with a crew of six, OneWeb's performance is ample.

Coverage: Where Each Network Actually Reaches

Coverage is where operational realities diverge most sharply, particularly for vessels operating in Southeast Asia.

Starlink holds regulatory approval in approximately 150 countries and covers the majority of open ocean routes. There are meaningful gaps, though. Parts of Southeast Asia, including certain territorial waters in the South China Sea and passages through Indian and Chinese EEZs, present regulatory uncertainty. Vessels transiting these zones can experience throttling or service interruptions depending on the flag state and local regulatory environment. This is a genuine operational consideration for regional shipping companies running Vietnam-Southeast Asia-India-Middle East corridors.

OneWeb's near-polar orbital inclination gives it particularly strong coverage at high latitudes, including Arctic shipping corridors increasingly relevant for LNG tankers and bulk carriers using the Northern Sea Route. In Southeast Asian waters, OneWeb is expanding through Eutelsat's distribution partner network. Coverage in Vietnamese coastal and offshore waters is growing, but commercial availability depends on which licensed reseller has activated service in a given area.

For vessels operating exclusively in Vietnamese domestic waters and regional Southeast Asian routes, Starlink currently has broader practical availability. For vessels on longer transoceanic routes including northern Pacific or Arctic segments, OneWeb's polar coverage is genuinely valuable.

One point both networks share: neither should be operated alone on a commercial vessel without a backup link. The December 2024 software outage that took OneWeb offline for nearly 48 hours, and Starlink's significant global outage in July 2025, are reminders that no single satellite network delivers the reliability a commercial shipping operation requires. Redundancy is not optional infrastructure — it is the strategy.

Enterprise Grade vs Consumer Grade: The SLA Question

This distinction is often the deciding factor for fleet operators and ship managers, and it does not get discussed enough in side-by-side comparisons.

Starlink operates primarily as a best-effort service. Standard maritime plans do not include a guaranteed minimum uptime, a Committed Information Rate (CIR), or a formal Service Level Agreement (SLA). For individual vessels or smaller operators, this is usually fine. But for shipping companies operating under ISM Code requirements, with bridge systems and Voyage Data Recorders (VDR) that depend on continuous connectivity, "best effort" is a meaningful limitation.

OneWeb takes a wholesale, enterprise-first approach. Service is delivered through resellers who structure contracts with committed performance guarantees covering uptime, minimum speeds, and support response times. For operators who need contractual accountability, this is closer to what they are used to from GEO VSAT providers, combined with LEO performance.

The IMO's Maritime Cyber Risk Management guidelines under MSC-FAL.1/Circ.3 emphasize that shipboard communication networks must be managed with documented risk controls. An SLA from a connectivity provider is part of that documentation chain for many ship managers and QHSE officers working toward IMO 2021 compliance.

Pricing and Hardware: Calculating the Real Cost

Starlink's pricing is transparent. The Flat High Performance antenna runs around USD 1,500. Monthly service for Starlink Maritime ranges from approximately USD 250 for basic plans to several thousand dollars for high-priority tiers. Operators know what they are paying before they sign.

OneWeb service is accessed through resellers, and pricing reflects that enterprise positioning. End-user costs typically run USD 1,000–1,500 per month through distribution partners, varying by service tier and contract structure. Hardware costs depend on the terminal model and local installer. What operators get in return is the SLA, dedicated support channels, and more structured bandwidth guarantees.

The smarter question is not which is cheaper in isolation. It is what the total connectivity architecture needs to look like. For most commercial vessels, the best-value configuration combines a primary LEO link — Starlink or OneWeb — with a secondary LTE connection for coastal port calls and an L-band backup for GMDSS safety communications. That is the multi-WAN approach MarineConnect implements using the SmartBox Gateway, a central network management device that aggregates Starlink, OneWeb, 5G/LTE, and VSAT into a single managed connection with automatic failover, QoS prioritization, and crew bandwidth controls.

Running two satellite subscriptions sounds expensive. In practice, the cost of a 48-hour connectivity outage in missed port windows, failed remote surveys, or crew welfare failures exceeds months of dual-link subscription costs for most commercial operators.

FAQ

Is Starlink or OneWeb better for fishing and coastal vessels?

For small fishing vessels and coastal operators staying within a few hundred kilometers of shore, Starlink is generally the more practical starting point. Hardware is accessible, pricing is published and predictable, and the FHP or Standard V4 antenna can be mounted on smaller hulls without specialist installation. OneWeb terminals are typically designed for larger commercial maritime deployments. For a fishing cooperative or tuna fleet running a managed ICT contract across multiple vessels, OneWeb's enterprise SLA structure may be worth exploring.

Can I use both Starlink and OneWeb on the same vessel?

Yes, and for commercial operators this is increasingly the recommended approach. A multi-WAN gateway device like MarineConnect's SmartBox combines inputs from Starlink, OneWeb, 5G/LTE, and legacy VSAT into a single onboard network. Traffic is automatically routed across the best available link, with failover happening in seconds. The crew network, business network, and operational technology (OT) network each run on separate VLANs with independent priority rules, so a drop in the Starlink signal does not interrupt the bridge systems or ongoing CCTV recording.

Which network is better for vessels operating in Southeast Asia?

For vessels operating within Vietnam, the Strait of Malacca, and the broader South China Sea region, Starlink currently has broader regulatory clearance and more active coverage. OneWeb is expanding in the region through Eutelsat's distribution network. For most Southeast Asian commercial fleets right now, Starlink serves well as primary, with LTE coastal backup and L-band safety communications alongside. OneWeb is a credible and growing alternative for offshore and transoceanic routes passing through higher latitudes.

Does OneWeb work in Vietnam's waters?

OneWeb's satellite coverage technically reaches Vietnamese offshore waters, but commercial availability depends on local licensing and which reseller has activated service in the area. Unlike Starlink, which sells direct-to-consumer, OneWeb requires an authorized regional partner to provision and support service. Operators interested in OneWeb for Vietnam-based operations should confirm current availability with a local distributor before committing hardware.

What is the difference between LEO and VSAT for maritime connectivity?

VSAT (Very Small Aperture Terminal) refers to broadband delivered via GEO satellites at roughly 35,000 km above Earth. That distance creates latency above 500 ms and significant propagation delay. LEO satellites like those used by Starlink and OneWeb orbit at 550–1,200 km, cutting latency to 20–70 ms. LEO networks also deliver higher throughput at lower cost per megabit. The trade-off is that LEO satellites move constantly, requiring frequent handovers as different satellites pass overhead. Modern LEO terminals handle this automatically; most users at sea never notice.

The Answer Is Almost Always a Managed Multi-Link Architecture

After working with vessel operators across Vietnam and Southeast Asia, we have yet to find a commercial shipping company for whom the right answer was simply "pick one LEO provider and be done with it." The needs are almost always more layered.

Starlink excels at speed, direct availability, and accessible pricing. OneWeb brings enterprise-grade SLAs, strong polar and high-latitude coverage, and a network built for predictable performance under committed guarantees. Neither has zero downtime. Neither covers every regulatory territory without gaps. And the consequences of losing connectivity at sea — missed check-ins, suspended remote monitoring, crew welfare failures, potential SOLAS compliance gaps — are too significant to bet on a single link.

What MarineConnect provides is the managed layer on top: a SmartBox Gateway that integrates satellite links with coastal LTE and L-band backup, combined with onboard network segregation, bandwidth management, and remote fleet monitoring from shore. We offer both OneWeb satellite services and Starlink for maritime directly, so operators can evaluate both options with a single team rather than managing multiple vendors.

If you are assessing connectivity options for your fleet, whether a single coastal vessel or a regional fleet of 20 ships, reach out to us. We will look at your actual routes, vessel types, crew numbers, and operational requirements, and give you a straight answer on what architecture makes sense. No pressure, no upsell. Just the right connection for the job.