Most seasoned travelers know you can save money on flights by adding a layover in the middle. If you plan it well, you can end up with a few hours to explore a city you've never seen on the way. But when you're traveling abroad, those cheaper tickets can be difficult to find.
If you're planning to travel internationally, it's worth checking out the travel site CleverLayover. It just takes a minute to use, and it finds savings on one out of every three searches, with an average savings of $300. CleverLayover's slogan is "Hack travel. Book differently. Save money."
Launched by a group of students from Harvard Business School, CleverLayover searches for combinations of two round-trip flights from non-partner airlines to save you money. If that sounds confusing, here's an example: You have one round-trip flight on a domestic airline to New York and back, and another round-trip flight (possibly with a cool layover stop) from New York to somewhere in Europe, and because those airlines don't work together, you're saving more than if you just booked through Google Flights or Kayak.
Of course, you need to weigh the savings against how much longer your trip will be, but CleverLayover is so simple to use, it's worth taking a look (plus it pulls up Priceline's results in another window for you). Also, one drawback is you'll need to pick up your baggage and re-check it at the layover airport. And you may want to buy the travelers' insurance CleverLayover offers, since problems on the first leg of the flight could cause delays, and the second airline isn't obligated to help you.