NBC News reports:

"The increased cadence in terror attacks targeting European tourist destinations both major and minor has dealt double-digit blows to travel, with global tourism spending down 14 percent in June, according to a recent report by UBS."

Impacts:

• Nice: Cruise lines trips and port calls canceled, Rihanna concert canceled, Nice Jazz Festival canceled.
• Egypt, France, Tunisia, Turkey have all seen drops in arrivals between 11 and 20% following 2016 attacks.
• Travelers are switching their summer holiday plans from Continental Europe to Scotland, Latin America and other destinations perceived as safer - in some cases even western Africa.
• Stocks of major tour operators have plummeted: Thomas Cook -47%, TUI -32% since January.
• Hotels across Europe are offering discounts of up to 20%.
• US-Europe airfares are at near-record lows.

But for some travelers, the savings are worth the risk.

And airline prices will begin to rise soon as carriers begin removing capacity for the winter.