Those travelling from outside Portugal will probably y to Lisbon or Porto, although Faro could also be an option. Good train/shuttle connections to Coimbra are readily available
Coimbra Airport Shuttle operates a door-to-door shared transfer between Lisbon (36€)/Porto (29€) airport and Coimbra
Rail travel from both Lisbon and Porto is
regular, fast and reliable provided you take the Alfa Pendular or Intercidades
Coimbra is served by the A1, the main highway of Portugal, arrival by Taxi, or BUS - Rede Expressos, is also convenient and fast.