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Starlink vs T-Mobile for RV internet: which one works on the road

A direct comparison of Starlink and T-Mobile's mobile internet options for RV owners. Coverage maps don't tell the whole story — here's what does.

Topic
Networking
Updated
Read
7 min
By
StarlinkRVKit Editorial Team

The short version

T-Mobile can be faster when you have strong 5G coverage. Starlink works everywhere you can see the sky, and since T-Mobile's AWAY plan launched at $110 to $160 a month, Starlink's capped Roam plans are now the cheaper option too. For RV owners, the question isn't which is "better" — it's where you travel and how much data you use.

If you mostly stay at RV parks near cities and towns, T-Mobile can win on speed and latency. If you boondock, visit national parks, or travel through the rural West, Starlink is the only option that reliably works.

Most serious full-timers end up running both.

Head-to-head comparison

FeatureStarlink (Roam)T-Mobile AWAY
Monthly cost$55 (100GB), $80 (300GB), $175 (Unlimited)$110 (200GB) or $160 (Unlimited) with AutoPay
Equipment cost$249-349 (dish)5G gateway, plus a $35 device connection charge
Download speed50-200 Mbps50-300 Mbps
Upload speed10-20 Mbps10-50 Mbps
Latency25-60 ms15-35 ms
Works while drivingYes (Mini or Standard on a secured, approved mount)Yes
Rural coverageEverywhere with sky view5G/LTE towers only
Power draw75-100W (Standard Gen 3), 20-40W (Mini)10-15W
Setup time2-5 minutesPlug in and go
Data cap100GB or 300GB, then basic access (under 1 Mbps); none on Unlimited200GB or unlimited
Pause optionStandby Mode, $10/month$10/month, up to 90 days twice a year

T-Mobile AWAY pricing is from T-Mobile's RV internet page as of September 2026, and runs $10/month higher without AutoPay.

Where T-Mobile wins

Speed in coverage areas. When you have a strong 5G signal, T-Mobile often outperforms Starlink. RVers report 200-300 Mbps at well-covered RV parks, compared to Starlink's typical 50-150 Mbps.

Latency. T-Mobile's 15-35ms latency is better for video calls and gaming than Starlink's 25-60ms. If you work remotely and spend all day on Zoom, you'll notice the difference.

Power consumption. The T-Mobile gateway draws 10-15W versus Starlink Gen 3's 75-100W. For boondockers counting watts, this matters. Though Starlink Mini at 20-40W narrows the gap.

Setup. Power on the T-Mobile gateway. Done. No dish positioning, no obstruction checks, no mounting.

Unlimited data for less. If you need truly unlimited data, AWAY Unlimited at $160/month with AutoPay is $15 less than Starlink Roam Unlimited at $175.

Coverage is everywhere. This is the whole reason Starlink exists. National forests, BLM land, remote beaches, mountain passes — anywhere you can see a patch of sky, Starlink works. T-Mobile has zero coverage in most of these places.

Price on capped plans. Roam 100GB at $55/month and Roam 300GB at $80/month both cost less than AWAY's $110 200GB plan. For a couple who uses under 300GB a month, Starlink saves about $360 a year.

Consistency. Starlink delivers 50-100 Mbps whether you're in a Walmart parking lot or a dispersed campsite in Montana. T-Mobile's speeds swing wildly based on tower distance, congestion, and terrain.

No address restrictions. T-Mobile Home Internet is locked to a specific address, and AWAY is a separate product with its own terms. Every Starlink Roam plan works anywhere in the US/Canada region, which Starlink now treats as one home region.

In-motion use. Every Roam plan supports in-motion use with a Starlink Mini or Standard dish, as long as the dish sits on a secured, approved mount. T-Mobile also works in motion, but drops out frequently between towers on highways through rural areas.

The real question: where do you camp?

Mostly RV parks near towns and heavy data use? → T-Mobile AWAY. Faster speeds and lower latency where 5G is strong.

Mix of RV parks and boondocking? → Starlink Roam 300GB. The rural coverage comes at a lower monthly price than AWAY.

Full-time, everywhere? → Both. Use T-Mobile as primary when you have signal, Starlink as fallback. A travel router like the GL.iNet Slate AX with dual WAN can automatically fail over between the two.

Work remotely and can't afford drops? → Both, no question. One will always be up when the other isn't.

Cost comparison over 12 months

SetupYear 1 totalMonthly average
T-Mobile AWAY only$1,355-1,955 ($35 connection charge + $110-160/mo)$113-163
Starlink only (Mini, Roam 300GB)$1,209 ($249 dish + $960/yr)$101
Starlink only (Mini, Roam Unlimited)$2,349 ($249 dish + $2,100/yr)$196
Starlink only (Gen 3, Roam 300GB)$1,309 ($349 dish + $960/yr)$109
Both (AWAY 200GB + Mini on Roam 300GB)$2,564$214

The Mini is $249 list and often $199 on sale, which takes another $50 off the Starlink rows. AutoPay pricing is assumed for AWAY.

Equipment you need

  • Starlink dish ($249 Mini or $349 Gen 3)
  • A secure RV mount: see our no-drill RV mount guide for ladder clamps and hitch mounts
  • Roam plan ($55, $80 or $175/month)

For T-Mobile

  • T-Mobile 5G gateway (check T-Mobile for current device terms; there is a $35 device connection charge)
  • T-Mobile AWAY plan ($110-160/month with AutoPay)
  • External antenna ($30-50) if you want to boost weak signals

For both (dual WAN setup)

Common mistakes

Buying T-Mobile Home Internet for your RV. Home Internet is address-locked. It will stop working when you leave your registered address. You need T-Mobile AWAY specifically.

Assuming Starlink works in dense tree cover. Starlink needs a clear view of the sky. A campsite surrounded by tall pines will have constant dropouts. Check obstructions with the Starlink app before committing to a spot.

Not testing T-Mobile coverage on your actual routes. Coverage maps show theoretical coverage. Real-world coverage in mountain valleys, canyons, and remote highways is often much worse. Drive your planned routes with a T-Mobile phone first.

Oversizing your Starlink dish. The Starlink Mini ($249 list) is plenty for most RV setups, works in motion on an approved mount, and draws well under half the power of the Gen 3.

Our recommendation

Start with whichever matches your travel style. If you mostly stay in developed areas with strong 5G and use a lot of data, try T-Mobile AWAY first. If you go off-grid regularly, or use under 300GB a month, start with Starlink — it is now the cheaper experiment.

After 2-3 months of travel, you'll know whether you need the second service. Most full-timers who work remotely end up adding the other one within their first season.

What to do next

  • If you mostly camp in cities or RV parks near towns, start with T-Mobile and skip Starlink.
  • If you boondock or visit national parks, Starlink is the only reliable choice.
  • If you full-time and travel widely, run both with a dual-WAN travel router for automatic failover.

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