The price of jet fuel has dropped, but airlines are still adding fuel surcharges to the price of many tickets. Many other industries that use large amounts of fuel, like shipping and delivery services, have also maintained extra fuel fees. Nam Y. Huh/AP hide caption

itoggle caption Nam Y. Huh/AP

Fuel prices have plummeted this year, but airfares have remained high. The International Air Transport Association estimates that the world's airlines will rake in nearly $20 billion in profits this year. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP

Cho Hyun-ah, the daughter of Korean Air's chairman and CEO, has apologized and resigned from a position at the airline after a backlash over her kicking a steward off a recent flight. Cho was angered by the presentation of macadamia nuts. Chung Sung-Jun/Getty Images hide caption

itoggle caption Chung Sung-Jun/Getty Images

A plane takes off over a departure board at Hartsfield-Jackson Airport in Atlanta last November. Airlines say they expect an uptick in Thanksgiving travel this year. David Goldman/AP hide caption

itoggle caption David Goldman/AP

The good old days: A flight attendant serves coffee and sandwiches to a passenger on board an American Airlines flight, circa 1935. Frederic Lewis/Archive Photos/Getty Images hide caption

itoggle caption Frederic Lewis/Archive Photos/Getty Images

Malaysia Airlines had been struggling even before two of its flights were lost this year. Analysts say the national carrier faces either bankruptcy or privatization. Mohd Rasfan/AFP/Getty Images hide caption

itoggle caption Mohd Rasfan/AFP/Getty Images

The Air Force's U-2 spy plane first took flight in August 1955. One of the planes confused air traffic control computers in California last week, creating havoc. USAF/Getty Images hide caption

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The charred tail section of Delta Flight 191 sits near a runway at Dallas-Fort Worth International Airport in August 1985 after it crashed on approach. Delta quickly retired the "191" designation. Carlos Osorio/AP hide caption

itoggle caption Carlos Osorio/AP

Passengers wait in line at Hartsfield-Jackson International Airport on Thursday. A major snowstorm has delayed flights from Atlanta to New York. David Tulis/AP hide caption

itoggle caption David Tulis/AP

A passenger checks his cellphone while boarding a flight in Boston. The Federal Communications Commission is proposing new rules to allow using cellphones for data and voice calls during airline flights. Matt Slocum/AP hide caption

itoggle caption Matt Slocum/AP

The new head of the Federal Communications Commission says his agency is reviewing restrictions on in-flight cellphone use. Here, a passenger looks at her cellphone before a flight last month. Matt Slocum/AP hide caption

itoggle caption Matt Slocum/AP

The new head of the Federal Communications Commission proposes allowing airline passengers to make phone calls during flights. Here, a passenger looks at her cellphone before a flight last month. Matt Slocum/AP hide caption

itoggle caption Matt Slocum/AP