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That's a good request. It is nice to see people thriving for education. I believe you are looking for this list of spanish airport vocabulary https://spanishgrammarlessons.com/spanish-airport-vocabulary/ . Click the link and see for yourself. Everything you need to know is there.

In general, any article on Google with travel tips for Spain will work for you, but I would recommend starting from where you plan to go. Look at the route, imagine words or questions that you might need and save to your phone or print. You can also take some private lessons where you can practice your pronunciation, which will allow you to be more confident. Have good travel.