Is there a free flights API that lets you pull departure and arrival locations and times?

I input a lot of itinerary details into a Google Sheet and was trying to save a little bit of time by trying to let AppScripts automatically fill out the departure and arrival locations and times, and me just entering in the date and flight number into the sheet.

Thanks in advance.

Answer

I think Read more is what you need.

Up to $5 free per month which should be enough to query at least 50 flights.