“People would like a simple rule, but in practice there isn’t a single day or time to buy,” said Patrick Surry, the chief data scientist for Hopper, an airfare prediction app.The New York Times
PCMag, Sep. 3, 2019
CNBC, Aug. 29, 2019
Good Morning America, Aug. 23, 2019
O, The Oprah Magazine, Jun. 11, 2019
CardRates.com, Jun. 7, 2019
NPR2, Mar. 28, 2019