Google announced that it will be shutting off developer access to a feed that automates data for airfare search engines, in a move that could affect third-party travel sites. It's also a sign that Google is becoming increasingly interested in competing with the big names in travel services like Expedia and Orbitz. 

The search giant posted a notice on the FAQ page of its site for software developers stating that it would be shutting down its QPX Express API service as of April 10, 2018, and that it would be ending new user registrations for the flight service. It also sent out an email to customers who use this data informing them of the change, according to Hacker News. "If you are actively using the QPX Express API service, you may want to find an alternate solution before April 11, 2018," the notice read. 

Google isn't providing any information on alternative API services, but some possibilities that software engineers could use include Fareportal, Skyscanner, and Skypicker. Google is also building out its own consumer-facing Flights service, recently adding a cost-saving features, such as flying on a different day, landing in a different airport, or checking to see how airfares vary over time on a graph