Nordwind airline starts ticket sales for new Pyongyang-Moscow flights, starting July 27, with fares around $566.50.

An American Airlines Inc. passenger checks himself in from a self-service check-in kiosk at LaGuardia Airport in the Queens borough of New York, in this April 25, 2011 photo.

Appelbaum said that travelers who book airline tickets through a third party, as Cregan did, can have an even harder time learning the true cost of their flights. “When you look at these third ...

Some savvy travelers save money by using this tricky approach to book tickets. Here's why airlines hate — and prohibit — it.