Airlines from America to Australia are ramping up flights in June and July, boosting hopes for a pickup in tourist traffic even as bigger-spending business and global travel remains sluggish during the ongoing pandemic. American Airlines and United Airlines each announced more flights to key US business and leisure destinations where national parks and outdoor recreational spaces are reopening after months of lockdowns and travel curbs, sending their shares sharply higher. Chicago-based United is adding more non-stop flights as well as servicing markets like Aspen, Colorado and Jackson Hole, Wyoming where it said “social distancing is a natural feature” in the scenic landscapes. “Leisure travel has been the most missed activity during lockdown across age and income demographics, even more so than things like restaurants,” said Jason Guggenheim of Boston Consulting Group, which has surveyed consumers in the United States and Europe.