But over the last few decades, airlines have pushed aircraft manufacturers for more fuel-efficient planes to reduce costs. Two-engine jets can now fly near the same capacity and fly farther than older, four-engine planes like Boeing’s 747 and the Airbus A380.
CNBC visited Boeing’s Everett, Washington, factory to see the last 747 roll off the production line. It will go to Atlas Air To install cargo flights. CNBC looks back at how the 747 changed air travel and what’s next for Boeing.
Watch the video to learn more.