The reason I specifically focus on ‘July’ travel deals to Europe is many airline deal blogs use ‘Summer Fare’ in their headline to attract reader attention on ticket prices for USA to Europe. The normal situation is fare drops on USA to Europe routes happen in mid-August. Travelers with school age children and those working in education typically are focused on back to school by mid-August. Travel deals in the last five weeks of summer in August and September are a very different kind of deal than a low fare to Europe in July.
United Airlines has San Jose to Madrid as low as $559 round trip for travel departures in July 2018.
United Airlines San Jose SJC – Newark EWR – Madrid MAD – EWR – SJC