747. The Jumbo Jet. Whether you're a million miler or just look for the cheapest thing on Kayak, the 747 is a plane that requires no introduction. You know it has an upstairs. You know that's what Air Force One is. You know it's been around forever and it still imparts second glances through the glass even when you're beelining it for baggage claim. It's a stalwart of the skies.