Flight
This is the international airport you will want to arrive at. The airport is about 30 min away from El Poblado (the area to stay in). Uber works perfectly fine and should be about a $25 ride. You can also ride a taxi, but make sure to have pesos with you (it would be about 95K Colombian pesos).
Hotel
The Somos hotels are boutique hotels with multiple locations in El Poblado. All three options listed on this page are pretty close to each other and central of Medellin's best area. The discount code will work on the locations noted on this page. They all include breakfast and a welcome drink.
Discount Code - gutierrez25
Hotel
Discount Code - gutierrez25
Hotel
Discount Code - gutierrez25