Connections are very good between the UK and North West Spain, and are improving all the time.
Brittany Ferries sail twice weekly between March and November from Plymouth and Portsmouth to Santander, and have their super-fast luxury ship Pont-Aven.
For visiting east or west Asturias, Asturias airport near Aviles is the most convenient airport. You could also fly into Santander airport for eastern Asturias.
Easy jet operate regular flights from Stansted to Asturias airport.
Ryanair operate regular flights from Stansted and Dublin airports.
There are 3 main airports in Galicia.
Ryanair operate regular flights from Stansted to Santiago de Compostela.
Vueling airline and Iberia operate a regular service from Heathrow airport
The most convenient airport to fly to for Cantabria is Santander, which is located just to the east of the city. Ryanair operate regular flights there from Stansted and Dublin airports
Bilboa is just one hour's drive from Santander. There are regular flights with EasyJet from Stansted and also Vueling airline and Iberia from Heathrow