Anytime I fly, I usually park my vehicle in a Park and Fly lot, if I can't obtain a ride to the airport. I don't do it often, but when I do, it's a challenge to find a company a trust. You want security and you want to know that your vehicle will be safe 24 hours a day. If you're traveling outside the United States and you have to park a vehicle at the airport, the process is a bit different, and sometimes the prices can be substantial. This past Christmas, I had a friend visit from Edinburgh, who is attending school to be an archaeologist. She was concerned about coming over, since she had to park her car at the airport the entire time she was gone. I told her that I would look for airport parking that was reasonable and highly secure.
I consider myself a great researcher, and I always do my homework before I make big purchases. I searched the Internet for a car parking service in Edinburgh and I managed to find a wonderful company called Parking4less.com. This site allows you to pick a city of origin, the day you are bringing the car to park, and when you will pick it up. After making your choices, you'll submit for a quote, which provides you a huge list of parking services, along with any particulars. I suggested a Park and Fly service, because that's what I always use here. Not to mention, the car park stated that it was patrolled 24 hours a day by security staff and protected by CCTV, a fence and lighting. For an added bonus, you vehicle is covered by the car park's fully comprehensive insurance, which does not cover loose items or mechanical or electrical failure.
All of the car parks offered on this parking site offer bus transfer to and from the airport and convenient locations, with patrolled lots 24 hours a day. Some of the companies offer this incredible service, which tracks your flight upon arrival and provides a vehicle for pickup, without you having to lift a finger or dial a cell phone. That's a huge bonus for me, and I ended up picking that company. Why? I didn't want my friend to have any other worries during her trip, since this was her first trip back to the states after attending school. My advice to you is to do your research. Sometimes it's better to go directly to the company, but I prefer using this company website, as it not only cuts down on search time, but the information is more often than not, more recent.