ADO bus to Playa del CarmenorADO bus to Tulum?

The short answer

For one traveler the ADO bus to Playa del Carmen is cheaper by MX$175. That does not change up to 8 travelers.

The ADO bus to Playa del Carmen is quicker: 1 h 30 against 2 h 40. The ADO bus to Tulum varies between 160 and 185 minutes.

ADO bus to Playa del Carmen: 07:50–02:20. ADO bus to Tulum: 11:40–20:00.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in MXN. The cheaper of the two is marked on every row.
Travelers	ADO bus to Playa del Carmen	ADO bus to Tulum	Difference
1	MX$270	MX$445	MX$175
2	MX$540	MX$890	MX$350
3	MX$810	MX$1,335	MX$525
4	MX$1,080	MX$1,780	MX$700
5	MX$1,350	MX$2,225	MX$875
6	MX$1,620	MX$2,670	MX$1,050
7	MX$1,890	MX$3,115	MX$1,225
8	MX$2,160	MX$3,560	MX$1,400

Where each one leaves you

ADO Aeropuerto · ADO (ADO Aeropuerto)ADO bus to Playa del Carmen

From: Terminal 3, the ADO counter outside arrivals; it then calls at Terminal 4 and Terminal 2
To: Playa del Carmen, the ADO Terminal Turística in the town centre
Luggage: One checked suitcase up to 25 kg and one small bag at your seat, at no charge.
Runs: 07:50–02:20
Journey: 90–110 min

The 11:40, 13:00, 14:20, 15:40, 17:30 and 20:00 also run to ADO Terminal Alterna, about 80 minutes out: check the terminal on your ticket.

Nothing leaves Terminal 3 between 02:20 and 07:50.

ADO Aeropuerto · ADO (ADO Aeropuerto)ADO bus to Tulum

From: Terminal 3, the ADO counter outside arrivals; it then calls at Terminal 4 and Terminal 2
To: Tulum, the ADO bus station in town
Luggage: One checked suitcase up to 25 kg and one small bag at your seat, at no charge.
Runs: 11:40–20:00
Journey: 160–185 min

Only six a day: nothing before 11:40 or after 20:00.