The useful question is not how much, it is how it charges
Two travellers and a group of six pay the same with us and very differently on a bus. Comparing "prices" without naming the unit helps nobody: the first thing to know about any option is whether the number quoted is per person or per vehicle.
The second is when you find out. A fare closed before you fly and one settled at a counter on arrival are not the same product, however similar the number ends up being.
Our rate: flat, per vehicle, paid online
We quote every destination at a per-vehicle price you see before paying and that does not change afterwards. It starts at $49 USD to the Hotel Zone and rises with distance; each destination has its own page with the exact figure and all three vehicles.
For a peso reference, that minimum works out at roughly 956 MXN at the 19.50 MXN per dollar rate our card payments use. It is indicative: the real charge is calculated at checkout, and PayPal charges in dollars with no conversion.
What does not get added at the end
Taxes, tolls and airport fees are already in. Payment is 100% online at booking, so your driver collects nothing at the kerb. Infant and booster seats are free on request, and cancellation is free up to 24 hours before.
There is no night rate and no high-season surcharge: the same route costs the same on a Tuesday in September as on 27 December.
What about Uber?
Uber exists in Cancun but will not pick you up at the terminal, so it does not belong in this price comparison as a way out. What the app dispatches there is an authorised taxi, at taxi rates. The full story, with dates and sources, is in the taxi, Uber and private transfer guide.