Round-trip vs. one-way: Which is better? One of the big “hacks” people ask me about is whether it’s better to buy a round-trip itinerary or two one-way tickets.

Round-trip vs. one-way: Which is better? One of the big “hacks” people ask me about is whether it’s better to buy a round-trip itinerary or two one-way tickets.

Upgraded Points found that the average cost of two one-way tickets on major U.S. routes was $432, while the round-trip option averaged substantially less at $291, offering a 33% savings of $141.

For example, if you’re looking to buy a ticket from Washington to San Juan on Aug. 20, returning on Aug. 27, you’ll pay $20 less on JetBlue if you buy it as a round-trip itinerary, rather than ...