What are the most popular routes to Unión?
| San Rafael - Unión | Average priceCOP 74,174 | Average duration3h 27m | Daily departures2 | |
| Buenos Aires - Unión | Average priceCOP 207,893 | Average duration10h 32m | Daily departures2 | |
| General Alvear - Unión | Average priceCOP 69,540 | Average duration1h 43m | Daily departures2 | |
| Mendoza - Unión | Average priceCOP 80,951 | Average duration6h 43m | Daily departures2 | |
| General Pico - Unión | Average priceCOP 74,489 | Average duration3h 10m | Daily departures1 | |
