Which airline used the famous tagline "The World's Favourite Airline" for over two decades before retiring it in 2011?

The transportation industry has given us some of the most memorable marketing taglines in advertising history. Airlines, car manufacturers, and other transportation companies invest millions in creating catchphrases that stick with consumers and differentiate their brand. Test your knowledge of these famous transportation taglines and see if you can identify which company made this particular promise to its customers. The right answer might surprise you!

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British Airways
Lufthansa
Singapore Airlines
Emirates