Last summer, our family of six drove from Phoenix to San Diego to Los Angeles to the Grand Canyon and back — roughly 1,200 miles over seven days. Total trip cost: $1,840. That's gas, food, three nights of lodging, activities, and the inevitable "I need to go to the bathroom and also can we get a snack" stops that children generate approximately every 90 minutes.
The year before, a similar trip cost us $2,600 because we didn't plan well. The difference wasn't about depriving ourselves — both trips involved the same number of stops, the same attractions, and roughly the same quality of experience. The difference was planning. Here's what I learned.
Gas: The Biggest Variable Cost
Fuel is typically the largest single expense on a road trip after lodging, and it's also the most variable by geography. Gas prices can swing $0.50-$1.00 per gallon between neighboring states. On a trip burning 60-80 gallons, that's $30-80 in savings just from filling up in the right places.
GasBuddy is essential. The app shows real-time gas prices at stations along your route. I plan fuel stops around cheap stations rather than stopping wherever the tank happens to be low. On our last trip, filling up in Tucson ($3.19/gallon) before crossing into California ($4.89/gallon) saved us $25 on one fill-up.
Costco and Sam's Club gas stations are consistently $0.20-0.40 cheaper per gallon than surrounding stations. If your route passes near a warehouse club, plan your fill-up there. Both apps show gas prices, and the savings pay for themselves.
Cash vs. credit matters at some stations. Many independent gas stations offer a $0.05-0.10 per gallon discount for cash payment. On a 15-gallon fill-up, that's $0.75-1.50 — small but it accumulates over a multi-day trip.
Use a credit card with gas rewards for the rest. The Chase Freedom Flex periodically offers 5% back on gas. At 5% on $200 in total fuel costs, that's a $10 rebate for doing nothing differently.
Food: The Budget Killer You Can Control
Restaurant meals for a family of six range from $40 at a fast-food place to $100+ at a sit-down restaurant. Eating every meal at restaurants on a seven-day trip would cost $800-1,400 for our family. That's insane.
Instead, we use a cooler strategy. Before leaving, we pack a large cooler with sandwich supplies, fruit, yogurt, cheese sticks, and drinks. We pack a separate bag with non-perishable snacks: granola bars, crackers, trail mix, dried fruit, and peanut butter.
Every day, we eat breakfast and lunch from the cooler and snack bag. We refill with ice and perishables every 2-3 days at a grocery store (the trip's cheapest store is always the local Walmart or Aldi). Our one restaurant meal per day is dinner, and we keep it affordable by choosing local spots instead of chains — often better food at lower prices.
Total food cost for our last seven-day trip for six people: $380. A restaurant-every-meal approach would have been triple that.
Lodging: Where the Biggest Savings Hide
Hotels for a family of six are expensive because most hotel rooms accommodate four guests maximum. We'd need two rooms at $100-150 each, making lodging $200-300 per night.
Instead, we use a combination of strategies:
Vacation rentals (VRBO/Airbnb) for multi-night stays. A two-bedroom apartment or small house costs $80-150 per night and accommodates our whole family in one unit. The kitchen lets us cook breakfast and sometimes dinner, saving additional food costs.
Camping for one or two nights. We're not hardcore campers, but a campsite at a state or national park costs $20-35 per night. With sleeping bags and an air mattress in the back of our SUV (or a basic tent), one or two camping nights cut the lodging budget dramatically while creating memorable experiences.
Loyalty programs. If we do stay at a hotel, we use Choice Privileges or IHG rewards because both chains offer affordable family-friendly options and the points accumulate toward free nights. One free night per trip saves $100-150.
On our last trip, we stayed in a VRBO for two nights ($130/night), camped at a state park for one night ($25), and used a free IHG reward night for one night ($0). Total lodging: $285 for four nights.
Activities: Free and Almost-Free Wins
National parks, state parks, and public beaches are the best activity value for families. A $35 America the Beautiful annual pass covers entrance to all national parks and federal recreation areas. We bought ours in January and it's paid for itself multiple times over.
Many cities offer free attractions: public parks, beaches, boardwalks, outdoor markets, and self-guided walking tours. San Diego's Balboa Park has multiple free museums on rotating schedules. Los Angeles has free hikes with stunning views.
We budget one paid activity per day ($15-25 per person, so $60-100 for the family) and fill the rest with free options. The kids honestly enjoy the beach as much as any paid attraction, and the hiking at the Grand Canyon is free with the parks pass.
The Pre-Trip Prep Checklist
Two weeks out: Book lodging. The earlier you book vacation rentals, the better the selection and pricing.
One week out: Plan your route on Google Maps with fuel stops flagged using GasBuddy. Make a meal plan for the trip. Create a grocery list for cooler supplies.
Day before: Fill the cooler. Pack the snack bag. Charge devices. Download offline maps and entertainment for the kids.
Morning of: Fill the tank at the cheapest nearby station. Check tire pressure (properly inflated tires improve fuel economy by up to 3%).
Our Budget Breakdown
Here's the actual breakdown from our last seven-day, 1,200-mile trip for six people:
Gas: $215 (our SUV gets about 22 MPG). Lodging: $285 (two VRBO nights + one camping night + one rewards night). Food: $380 (cooler strategy + one restaurant dinner per day). Activities: $420 (Grand Canyon pass, San Diego Zoo, two beach days, one surf lesson for the older kids). Miscellaneous: $140 (souvenirs, emergency snacks, laundry at the VRBO). Tolls and parking: $40.
Total: $1,480. Actually came in under the $1,840 I mentioned at the top — that first number was from the previous summer, and this most recent trip was even leaner because we refined the system.
For reference, AAA estimates the average cost of a one-week family vacation at $4,580. We came in at 32% of that average. Same number of days. Same destinations. Just more planning and less defaulting to the expensive option.
The kids don't remember which meals were from a cooler and which were from a restaurant. They remember the sunset at the Grand Canyon, the campfire, and the surfing. Experiences don't have to be expensive to be extraordinary.
