The general pricing rule for flight deals is that a round trip booking, a single purchase of tickets to a destination and back, should always be less than two one way flights along the same route. One potential work around that can save money on a trip abroad is to book cheap international flights one way to multiple cities. An example would be to fly from New York City to London, but then fly back to New York from Paris. You’ll have to find a way to get to the third city in order to fly back home, like traveling by train or car, but it can add up to less than a round trip between the first two destinations and even be more enriching trip. All you need to do is select the “multi-city” option when searching and booking flights. Just remember to compare the total price of the multi-city flights with a round trip to be sure you’re getting the better deal on cheap international flights.