Air traffic control glitches and the ensuing delays aside, modern life would be hard to imagine without jet travel. And at least in the United States, there is actually a day to mark the wonders of flight: Aug. 19 has been celebrated as "National Aviation Day" ever since President Franklin D. Roosevelt decreed it such in 1939.

If you, too, have a special appreciation for flight, then why not mark the occasion with an aviation-inspired case for your smartphone? For your convenience, we have compiled some of our favorite options available for the iPhone 6. So sit back, relax and have a look:

  • National Aviation Day is celebrated on Aug. 19 because this summer date is the birthday of Orville Wright, the youngest of the Ohio brothers credited with inventing and building the world's first successful airplane. Their 1906 "Flying Machine" patent, No. 821,393, is featured on Fine Art America's Flying Machine Patent from 1906 iPhone 6 Case, which is available in a wide range of colors and retails for $39.99.

  • The Wright Flyer had a wingspan of some 40 feet and a maximum takeoff weight of 745 pounds. Compare that to a Boeing 747, whose wingspan logs in at up to 224 feet and which takes to the skies weighing up to 987,000 pounds. With its Boeing 747 iPhone 6 Case and at a price tag of $49.99, Fine Art America also sells a tribute to this famous "jumbo jet," which in its 8 variant remains the longest plane to currently serve the world's runways.

  • If you are looking for something a bit more clever -- and personalized -- then you might appreciate Zazzle's Customizable Boarding Pass Tough iPhone 6 Case, which lets you add your name and favorite flight number to a classic ticket design. The cover, made in the United States, will set you back $48.95.

  • Much older than the Wright Flyer, it turns out, is the paper plane, which is believed to have originated in China around 500 B.C. And Redbubble's Paper Airplane 47, starting at $21, certainly makes for a stylish tribute to what for thousands of years was the only man-made heavier-than-air craft to actually take to the skies.