Detective Pux here, ready to solve the case of "How to get from Cancun Airport to Isla Mujeres on a budget."

Well, first things first, you gotta put on your detective hat, cause we're gonna need to gather some intel to find the best deal.

Now, let me tell you, Cancun is a popular tourist destination, so there's a lot of options to choose from. But, since we're trying to keep it affordable, we'll rule out taking a private jet, cause that would definitely break the bank.

So, here's the options:

1. ADO Bus: The ADO Bus is the most affordable option, costing around 70 Mexican pesos (less than $4 USD) one way. It's a direct route, and runs 24/7. Just hop on the bus at the Cancun airport, and you'll arrive at the ferry terminal in Cancun in about 45 minutes.
2. Taxi: Taking a taxi is the most convenient option, but it's also the most expensive. It will cost you around 1500 Mexican pesos (less than $80 USD) one way. However, if you're traveling with a group, it can be a cost-effective option.
3. Shuttle: Another option is a shuttle service. This will cost you around 900 Mexican pesos (less than $50 USD) per person. It's a bit more expensive than the bus, but it's a door-to-door service, so you won't have to worry about lugging your luggage around.

So, now that we've got our options, let's see which one fits the budget best.

If you're a solo traveler, the ADO Bus is the way to go. It's cheap and efficient. Plus, you'll get to see a bit of Cancun on the way to the ferry terminal.

But, if you're traveling with a group, the shuttle service might be the best option. It's not the cheapest, but it's definitely the most convenient. Plus, you'll have a designated driver to take you to the ferry terminal.

For shuttle service from Cancun airport to Isla Mujeres, some popular and highly rated companies include:

1. Cancun Shuttle Transportation: This company offers door-to-door transportation services, and is known for its reliable and efficient service.

2. America Transfers: This company has a good reputation for providing safe and comfortable transportation services at affordable prices.

3. Royal Airport Transfers: This company offers a variety of transportation services, including shuttle service from Cancun airport to Isla Mujeres. They are known for their professional drivers and high-quality vehicles.

4. Mayan Monkey: This company offers private and shared shuttle services, and is well-regarded for its affordable prices and friendly staff.

It's always a good idea to compare prices and read customer reviews before booking a shuttle service, to ensure you get the best deal and a positive travel experience.

Once you arrive at the ferry terminal in Cancun, you'll take a ferry to Isla Mujeres. The ferry ride takes about 30 minutes, and costs around 200 Mexican pesos (less than $12 USD) one way.

So, there you have it! Three options for getting from Cancun airport to Isla Mujeres on a budget. Just remember to pack your detective hat, and you'll be all set.

That's all for now, folks! Keep your eyes peeled for more cases solved by Detective Pux.