Some routes and certain times of the year, it is cheaper to buy two one-way tickets. Search and compare what best suits your needs.
Flying one-way from Athens International Airport (ATH) to Denver International Airport (DEN) can often be the smarter choice. On certain routes and at specific times of the year, booking two separate one-way tickets can save you significant money compared to a roundtrip fare.
Denver, the Mile High City, sits at exactly one mile above sea level and serves as the gateway to the Rocky Mountains. Known for its stunning mountain views, world-class skiing, vibrant craft beer scene, and over 300 days of sunshine per year.
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