For pilots, yes, keep it to one page. That's also conventional wisdom for most low/mid-level white-collar jobs. Once you're more experienced in white collar you may need two pages or a CV.
In white collar there are so many possible permutations of job duties and skills, that you often need to explain it a bit. With pilots almost all actual pilot jobs can be very succinctly described by referencing the type of operation, ie 121, 135, 91k, etc. Very little elaboration is required.
Possible exception if you had some technical, safety, or management desk job in aviation. If that's you, you already know this stuff though.
The resume is used to sell yourself in basically an elevator pitch format. It's not to enhance your own self-esteem with fluffery. It is also NOT a job application... you do NOT have to list every employer and job on your resume, and usually you should not do that. Keep it to one page and hit the *relevant* highlights, don't typically need to mention taco bell in HS, bar-tending in college, uber while a regional FO, etc. You should of course provide all details they ask for when you fill out the application.
Also, a resume is YOUR selling tool... if you got fired from a minor job years ago, don't list that, only list the positives. You will of course have to list it all on the application.
Do include a few personal items like civic involvement, volunteerism, athletics, interesting hobbies, etc. I wouldn't mention extreme sports, they'll worry about LTD liability.
In white-collar the resume is often the key attention-getter... in airline aviation, it's really an adjunct to the online app but it shows your ability to communicate, and produce a written document with attention to detail. Yes, that still matters for majors (regionals are fine as long as the FAA will give you an SI for your adderall).