ES Spanish Government Spain: stays up to 3 months Official Spain government website Spain Spain tourism Spain's official tourism portal for destinations, ideas, and practical trip planning. Renfe Renfe trains Main official rail option for long-distance and many domestic train journeys across Spain. Aena Aena airports Official airport network portal for Spanish airports, terminals, and passenger information. ALSA ALSA buses Major long-distance bus operator useful for routes not covered well by rail. Paradores Paradores Spain's iconic state-owned hotel network for distinctive stays across the country. Iberia Iberia flights Spain's flag carrier and a good direct-airline option when you want to book flights without a third-party layer. Google Google Flights Very useful for comparing dates, routes, and price patterns before you choose where to book. Sky Skyscanner Popular flight search tool for comparing many airlines and online travel agencies at once. KAYAK KAYAK flights Well-known metasearch option for scanning routes, price ranges, and alternative airports. eDreams eDreams flights Large Spain-based online travel agency often used for comparing and booking flights. Europcar Europcar Large European rental brand with strong airport and city coverage across Spain. SIXT SIXT Well-known premium-leaning car hire option with many major Spanish pickup points. Avis Avis Long-established global rental brand with airport and city presence in Spain. Hertz Hertz Major international car-rental company with broad availability across Spain. Booking Booking.com One of the biggest hotel-booking platforms for comparing stays across Spain. airbnb Airbnb Popular for apartments, rooms, and longer or more home-style stays. Expedia Expedia Hotels Large online travel platform useful for hotels and broader trip bundling. Tripadvisor Tripadvisor Useful for comparing reviews, neighborhoods, attractions, and stay ideas before booking. Meliá Meliá Hotels One of Spain's most prominent hotel groups, with city, beach, and resort properties. NH NH Hotels Strong Spanish and European city-hotel chain often useful for practical urban stays. Barceló Barceló Hotels Large Spanish hotel group with a broad mix of city, island, and holiday properties. RIU RIU Hotels Spanish chain especially known for resort-style stays in beach destinations. Iberostar Iberostar Hotels Major Spanish resort and beach-hotel brand with a wide national footprint. Marriott Marriott Hotels Global hotel group with many brands and a broad presence in Spain. Hilton Hilton Hotels International hotel chain with upscale and business-oriented options in Spain.