Domestic aviation: Spain-to-Spain is W Europe's largest market

Spain is Western Europe's biggest domestic airline market by seats, with more than a quarter more capacity than number two Italy. Spain's domestic market has also experienced fairly healthy growth over the past year and over the past five years, when compared with other leading European countries.

Unlike the international market, where Ryanair is the leading airline and airlines from outside Spain have a majority share of seats, Spain's domestic market is dominated by local operators. Spanish airlines have 84% of domestic seats, led by Vueling, Iberia and Air Europa. The two IAG airlines have a 58% seat share between them.

Iberia's capacity is unchanged this year whereas Vueling is growing, with a number of route launches and increased frequencies. The regional airline CanaryFly's capacity is also stable, while Norwegian is shrinking. Other leading airlines in domestic Spain are expanding this year, with the LCC Volotea being growing fastest.