Summer round-trip airfare is averaging about $510, up 18% from last year — and Tuesday departures run about 17% cheaper than Sundays
Travelers booking summer flights face a sharper hit to their wallets this year, with round-trip airfares averaging about $510, an 18 percent increase from the prior summer. The gap between the cheapest and most expensive departure days adds another layer of cost pressure: Tuesday flights run roughly 17 percent less than Sunday departures. For families…