Starlink Latency Explained

Starlink delivers round-trip latency of 25–60 ms — a dramatic improvement over traditional geostationary satellite internet, which typically exceeds 600 ms. Understanding why requires a quick look at orbital physics, how the Starlink constellation routes traffic, and what interrupts that flow during normal operation.

Why Altitude Is Everything

The speed of light in a vacuum is approximately 299,792 km per second. Every millisecond of network latency represents about 300 km of signal travel distance. Geostationary (GEO) satellites orbit at 35,786 km above Earth — so a signal leaving your dish must travel that distance to the satellite, then back down to a ground station, then back up and down again on the return trip. That alone adds over 476 ms of propagation delay before any processing time is counted, which is why GEO internet routinely delivers 600 ms or worse.

Starlink's Low Earth Orbit (LEO) constellation sits at roughly 550 km altitude. A signal from your dish reaches the satellite in approximately 1.8 ms one way. The full round-trip path — dish to satellite to ground station and back — covers about 1,100 km of total distance, adding roughly 7–8 ms of pure propagation delay. The remaining latency (bringing the total to 25–60 ms) comes from processing time at network nodes, routing through the internet backbone, and the target server's own response time.

What Causes Latency Spikes on Starlink

Even though the average is low, Starlink users experience brief spikes that do not occur on cable or fiber. Three factors drive these spikes:

• Satellite handoffs: Each Starlink satellite crosses the sky in about 5–7 minutes. Your dish continuously tracks the best satellite and switches connections roughly every 15 seconds. During the handoff window — typically under 2 ms — there is a brief interruption. Most applications recover invisibly, but latency-sensitive protocols can see spikes of 50–200 ms during that moment.
• Dish obstructions: Even a small tree branch crossing your dish's field of view can cause packet loss and momentary latency jumps. The Starlink app's obstruction map shows how many seconds per hour your dish loses signal, and even 0.5% obstruction is enough to produce noticeable spikes during video calls or gaming.
• Network congestion: Peak hours — typically 7–11 PM local time — concentrate many users onto shared ground station capacity. During these windows, average latency can climb from 30 ms to 80–100 ms and jitter increases noticeably. Starlink has been expanding ground station infrastructure, and Priority tier customers experience less congestion impact than Residential subscribers.

Starlink Latency for Gaming

The 25–60 ms average is broadly acceptable for most online gaming. Role-playing games, strategy titles, and open-world multiplayer games that tolerate 80–120 ms ping will run comfortably on Starlink. The problem for competitive gaming is not the average — it is the spike frequency. When your ping suddenly jumps to 200 ms for half a second during a satellite handoff, the result in a first-person shooter is rubber-banding, hit-registration errors, or a brief freeze that competitive players find unacceptable.

Casual ranked play in games like Warzone, Apex Legends, or Valorant is feasible for most Starlink users who have a clear sky view and minimal obstructions. Professional or tournament-level play is not well-suited to Starlink at its current state. For a deeper breakdown, see our Starlink gaming performance guide.

How to Measure Your Actual Starlink Latency

A single speed test gives you a snapshot, but Starlink latency is better understood over time. Run a speed test on SpeedTestHQ to get your current round-trip time, then open the Starlink app and navigate to the diagnostics screen. The app shows a latency graph over the past 12 hours and reports your obstruction percentage, uptime, and peak/average latency separately. This combination gives a far more useful picture than any single measurement.

For ongoing monitoring, tools like ping plotter or a continuous ping to a stable server (such as 8.8.8.8) running in the background for 30 minutes will reveal the true spike pattern at your location. If you see spikes every 15 seconds like clockwork, that is the satellite handoff rhythm. If spikes are random and infrequent, the cause is more likely congestion or a marginal obstruction.

Latency Comparison: Starlink vs Other Connection Types

Reducing Latency on Your Starlink Connection

You cannot change the physics of LEO orbit, but you can minimize the factors that add latency on top of it. Ensure your dish has a completely clear sky view — even partial obstruction dramatically increases effective latency during the moments the signal is briefly blocked. Use a wired Ethernet connection from the Starlink router rather than Wi-Fi; Wi-Fi itself can add 2–15 ms of latency depending on distance and interference. Place your router centrally and reduce the number of hops between your device and the router.

If you are on the Residential plan and experiencing consistent high latency during peak hours, the Priority plan offers deprioritization protection that can meaningfully reduce congestion-related latency spikes. It is worth running tests at different times of day to determine whether your latency issues are congestion-driven (worse in evenings) or obstruction-driven (consistent throughout the day).