I'll be riding Uber for the first time on Thursday because I need a ride to the airport. I heard about price surges and such for Uber and I really don't want to pay a fortune to go to the airport. I'm riding Uber rather than paying to leave my car at the airport all weekend so I'm hoping to save some money here. Is there usually a price surge around 5pm? The app estimates the ride to be around $30. Are these estimates accurate?