Travel trailer
193 listings, median 24 ft
20%
clear White River
Median $126.00 a day. 41% fit Olympic's standard 21 foot site.
Read moreMeasured September 5, 2026
Seattle RV Rentals, Sized for the Ferry and the Campground
473 RVs for rent within 50 miles of Seattle, held by 376 separate hosts, at a median $199.95 a night. Which one suits you is decided less by class than by two numbers: how long it is, and how tall it is.
- 376 independent hosts
- 58% offer delivery
- No booking fees from us
- Every figure dated and sourced
The number nobody publishes
Length picks your campsite. Height picks your fare.
472 of 473 Seattle listings publish a length. Only 33 publish a height. Washington State Ferries charges a vehicle under 30 feet roughly double once it passes 7 feet 2 inches, so the fare turns on the one dimension 93% of listings leave blank.
- 472 of 473
- publish a length
- 33 of 473
- publish a height
- $255.70
- round trip that height decides, to Friday Harbor
Start from what has to fit
The Cheapest Class Is the Worst Fitting One
Travel trailers are 193 of 473 listings at $126.00 a day, and 20% clear Mount Rainier's White River campground. A Class B at $273.00 clears it 100% of the time.
Camper van
99 listings, median 19 ft
98%
clear White River
Median $249.00 a day. 85% fit Olympic's standard 21 foot site.
Read moreClass C motorhome
83 listings, median 25 ft
63%
clear White River
Median $249.00 a day. 1% fit Olympic's standard 21 foot site.
Read moreClass B motorhome
61 listings, median 20 ft
100%
clear White River
Median $273.00 a day. 85% fit Olympic's standard 21 foot site.
Read moreClass A motorhome
24 listings, median 32 ft
8%
clear White River
Median $299.50 a day. 0% fit Olympic's standard 21 foot site.
Read moreWhere it can go
Five Destinations, Five Different Constraints
Three of these need a ferry that prices by size. One publishes no length limit at all. Each page carries the campground caps as the park publishes them.
Olympic National Park
10 campgrounds with published caps
$61.00
ferry, one way
Filter by length before you filter by price or class. The median Seattle rental does not fit the standard Olympic site, so an unfiltered search puts you in the 53% competing for scarce oversize sites.
Read moreMount Rainier National Park
3 campgrounds with published caps
No ferry
drive only
Plan a Mount Rainier trip around your tanks and locate a dump station outside the park before you arrive. Do not assume you can empty on site.
Read moreSan Juan Islands
1 campgrounds with published caps
$256.75
ferry, one way
Price the crossing before the rental on any San Juans trip, and stay longer to amortise it. A two-night San Juans trip spends more on the ferry than on the vehicle.
Read moreWhidbey Island
1 campgrounds, no caps published
$46.90
ferry, one way
If the goal is an island night rather than the San Juans specifically, take Whidbey. The saving funds two extra nights of the median rental.
Read moreNorth Cascades
7 campgrounds, no caps published
No ferry
drive only
Take the longest rental here, not to the islands. This is the only destination in the set with no ferry and no published length cap, so neither the 7'2" height band nor a campsite limit rules anything out. Confirm the site with the park anyway, because silent is not the same as unlimited.
Read moreWhat the crossing costs
Seven Crossings, One Height Line
Every crossing measured charges a vehicle under 30 feet roughly double once it passes 7 feet 2 inches. The cheapest is Mukilteo to Clinton at $46.90. The dearest is Anacortes to Friday Harbor at $256.75, one way.
| Crossing | Crossing time | Car under 22 ft | Under 30 ft, short | Under 30 ft, tall |
|---|---|---|---|---|
| Anacortes to Friday Harbor | Not stated | $86.25 | $128.90 | $256.75 |
| Fauntleroy to Vashon | 20 min | $34.30 | $50.95 | $100.90 |
| Seattle to Bainbridge Island | 35 min | $27.00 | $40.00 | $79.00 |
| Edmonds to Kingston | 30 min | $27.00 | $40.00 | $79.00 |
| Seattle to Bremerton | 60 min | $27.00 | $40.00 | $79.00 |
| Port Townsend to Coupeville | 35 min | $21.00 | $31.00 | $61.00 |
| Mukilteo to Clinton | 20 min | $16.30 | $23.95 | $46.90 |
Worked out, not restated
Three Questions That Change What a Trip Costs
The RV measurement that decides your ferry fare, and why your listing omits it
The ferry roughly doubles the fare for an RV over 7 feet 2 inches tall, and 93% of Seattle listings do not publish a height. Ask the host first.
Read moreWhy a trailer costs less per night and closes more campgrounds
Trailers are the cheapest Seattle rentals and the worst fitting. Only 20% clear Mount Rainier White River, against 63% of Class C motorhomes.
Read moreThe San Juans ferry fare falls 26% overnight on 1 October
Peak ferry fares to the San Juans end 30 September 2026. Leaving one day later saves $132.70 round trip on a tall RV under 30 feet.
Read moreListing figures measured September 5, 2026 across 473 live listings. Ferry fares measured the same day from the published fare pages. Both change, and this page does not update itself. We are a finder: booking, insurance and any delivery are arranged with the host through the marketplace. 440 of 473 listings do not publish an exterior height.