In an attempt to lure travelers back to its own website, JetBlue removed its routes from 12 external travel agency websites. Instead of booking through these third-party sites, JetBlue encourages fare bookers to visit its own website to browse and purchase plane tickets.

When airlines partner with third-party travel agencies, the agreements typically involve charging a booking fee to list fare and handle reservations, which comes out of the airlines’ pockets. JetBlue makes this change to cut costs and improve the overall customer experience, the latter more likely when a traveler books directly with the airline. Airlines are also better positioned to keep airfare costs low without having to tack on extra agency fees when advertising with third parties.

JetBlue’s partner websites no longer displaying its fares include SmartFares.com and CheapFlightFares.com, among others. However, JetBlue will continue its partnerships with fare compare sites like Kayak and Orbitz as these sites simply advertise rates and eventually direct browsers to JetBlue’s website to complete the booking process.

JetBlue is not the first airline to make such a move. Delta removed its fares from 12 similar sites in 2015.