Which transportation company launched the famous tagline 'Fly the Friendly Skies'?

Test your knowledge of iconic transportation company marketing campaigns! In the competitive transportation industry, memorable taglines have helped brands differentiate themselves and connect with customers. These slogans often capture the essence of a company's promise and have become embedded in our cultural consciousness. Can you identify which famous transportation brand is behind this iconic tagline?

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United Airlines
American Airlines
Delta Air Lines
Southwest Airlines