If you're looking for cheap international airfares, I have a travel hack for you.
You should use a website, new to the United States, called Skypicker. It looks like any other travel search engine, but what it does is different. It creates itineraries you cannot buy anywhere else.
Here's the deal. Most of you know that the cheapest airlines - like Southwest, Frontier, Spirit, Ryanair, EasyJet and Volaris - have few, if any agreements with established airlines like United, American and Delta. That means you'll rarely see an itinerary that includes on leg on Spirit and one leg on American, even when such an option would be cheapest.
But if you combine flights on discount and full-service airlines, you can get some impressive deals, as Skypicker shows. Skypicker ignores the fact that these airlines do not have interline agreements with each other, and finds away to combine their flights anyways.
Of course, because the airlines do not actually cooperate with each other, you'll need to jump through many hoops to get your deal. Sometimes, the itineraries require you to spend a day or two flying to your destination.
I wrote about SkyPicker today for Conde Nast Traveler. To learn all about how Skypicker works, check out the story.