Uber is not a transportation provider. Flat rates apply to direct trips between specified locations. Additional stops may result in a higher fare. Applicable tolls and surcharges may be added to your fare. At times of intense demand, our rates change over time to keep vehicles available. UberX, Español, UberXL, and SELECT trips to or from TUS are subject to a $2.00 airport surcharge and any applicable tolls. UberX, Español, UberXL, SELECT, Black Car, SUV, and ACCESS trips from PHX are subject to a $3.25 airport surcharge and any applicable tolls.