Newark Liberty: Newark Liberty International Airport - Valet Parking

I've parked in the regular lots and used the valet. The regular airport parking (P1, P2, and P4) are $24 per day. The valet service actually parks in the P4 lot, and that service is $36 per day. P4 is the best place to park, as it is an indoor garage, and it is self-park [you don't have to leave your keys with anyone]. Make sure you lock your car, and you shouldn't have any problems. The valet service is quite a bit more expensive ($36 per day), but you don't have to look for a space, and when your flight lands, you can call them and they will have your car waiting for you after you step off the train and pay. In my opinion, for the service provided, the valet is not worth the added cost unless you need the help loading bags or something like that. The extra cost adds up quickly over time. A four day stay will end up costing you $50 more than if you had parked yourself. They don't allow tipping, but sometimes the valet will stand there for a moment as if he/she expects it anyway. P1 and P2 are outdoor lots; they are just OK, and they are the same price as P4, $24 per day. The other difference is that they are near certain terminals (walking distance); at P4 you have to take a train ride to your terminal. If you have a lot of bags, I would recommend parking at P4, as the walk to the train is shorter than the walk from P1 or P2 to the terminals. [Alternatively, you can also try the curbside valet check-in first, check your bags and get your boarding pass, then park your car. The police may give you a hassle about that though, unless you have someone to sit in the car.] I don't have any experience with P6 [Long term parking, $15 per day]. All in all, the valet is nice but not worth the added cost, especially if you can get a good spot in P4 yourself, it's only a slightly longer walk from the train. Again, if you are traveling with a companion, they can get the bags from baggage claim while you retrieve your vehicle, saving you from having to walk with a lot of baggage. There are cheaper options available at the airport, but for short trips the airport parking seems to be better.