A Delta plane lands at the Seattle-Tacoma International Airport, May 27, 2015. Delta Air Lines has pulled fare information from TripAdvisor and a number of European online travel agencies, saying that they did not have permission to use its data, leaving consumers on the hunt for the lowest fare has become more difficult as the number of places where they can comparison-shop has dropped.
A Delta plane lands at the Seattle-Tacoma International Airport, May 27, 2015. Delta Air Lines has pulled fare information from TripAdvisor and a number of European online travel agencies, saying that they did not have permission to use its data, leaving consumers on the hunt for the lowest fare has become more difficult as the number of places where they can comparison-shop has dropped. STUART ISETT NYT
A Delta plane lands at the Seattle-Tacoma International Airport, May 27, 2015. Delta Air Lines has pulled fare information from TripAdvisor and a number of European online travel agencies, saying that they did not have permission to use its data, leaving consumers on the hunt for the lowest fare has become more difficult as the number of places where they can comparison-shop has dropped. STUART ISETT NYT

Airlines seek to boost bookings by pulling data from travel sites

June 13, 2015 4:00 PM