Ok, what's going on with all these crazy "secret passage" fares we're finding today?! Here's another amazing one: JFK to Stockholm, Sweden $377 round-trip, nonstop, including all taxes, on Delta, for travel in June. Yes, June!

Once you hit the fare results page, look for the $697 Delta ticket. Select that, and on the following page, you'll find the fare has been magically reduced to $377. Puh-retty amazing!