How to Plan Your First Cross-Country RV Trip

Turn your dream trip into a logistical reality with the 3-3-3 rule and expert routing strategies.


The open road offers unparalleled freedom, but without a plan, it can quickly turn into a nightmare of sold-out campgrounds and wrong turns.

The 3-3-3 Rule

Experienced RVers swear by this rule to avoid burnout:

  1. Drive no more than 300 miles a day.
  2. Arrive by 3:00 PM.
  3. Stay at least 3 days.

Use RVPath to identify “hidden gem” state parks between your major anchors to avoid “interstate fatigue” where you only see highway gas stations.

Route Planning Strategy

1. The Big Anchors

Pick 3-5 major destinations you must see (e.g., Yellowstone, Grand Canyon, Mount Rushmore). Book these 6-12 months in advance.

2. Check the Weather

Crossing the Rockies in October? You might hit snow. Crossing Arizona in July? Your A/C will struggle. Plan your season accordingly.

3. East vs. West Planning

  • East Coast: Campgrounds are tighter; low bridge clearances are a major concern.
  • West Coast: Focus on “dry camping” (boondocking) and checking for seasonal mountain pass closures.

Budgeting & Fuel

Gas is your biggest expense.

  • Class A Motorhome: ~7-8 MPG.
  • Diesel Pusher: ~8-10 MPG.
  • Truck + Trailer: ~10-12 MPG.

Note: Headwinds or elevation changes in Idaho and the Rockies can drop truck mileage into the single digits.

The Backup Plan

A flat tire on I-80 is inevitable.

  • Carry a full-size spare.
  • Get a roadside assistance plan like Coach-Net or AAA RV.
  • Carry tools and know how to use them.