Do you have to book motels in advance on a road-trip?

I am planning a road trip from seattle to crater lake, oregon. I want to know if I have to book motels in advance? ideally i don't want to do this because i don't know how much distance i will be able to cover each day.
also does anyone have suggestions how to get most out of a 6 day trip? how to plan, what places to visit, where to stay? we are a party of 3 adults and we plan to drive max 200 mi on any given day (edit: this can go up to maybe 300mi; i really don't know). we have already been to portland and done sightseeing there + have been to multnomah falls.
Pictures about "Do you have to book motels in advance on a road-trip?"



Is it necessary to book your accommodation in advance?
Advance travel booking, especially for hotels, is beneficial especially during the peak seasons. It is usually a good idea to have your bookings in place before you travel to your destination, be it for work or a vacation. It saves you a lot of hassles and, sometimes, a lot of money on accommodation.How far in advance do you need to book a hotel?
The ideal amount of time to book a hotel room is only 15 days before your trip, according to a 2021 NerdWallet study. Looking at more than 2,500 hotel room rates between 2019 and 2021, NerdWallet found rates were about 13% cheaper when booked 15 days before compared to four months before.How much extra time do I need for a road trip?
We usually add one hour for 8-hour driving. One stop is 20 to 30 minutes. Heavy traffic is 20 to 30 minutes extra.How do you prepare for a long road trip?
9 Road Trip Tips For a Safe and Comfortable DriveBooking a Hotel on a Road Trip: What to Avoid, Tips \u0026 Tricks
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Andrea Piacquadio, Uriel Mont, Alex Green, Yaroslav Shuraev