Round trips aren't always cheaper. Here's how to decide, and when two one-way tickets make more sense.
The short answer
For many international trips, a round-trip ticket is priced better than two one-ways. On many U.S. domestic routes, two one-way tickets often cost about the same, and they give you more flexibility. The only way to know is to compare both for your dates.
When round-trip usually wins
Airlines often price long-haul international fares as a round trip. Booking both directions together can also keep you on one ticket, which helps if the airline changes one of your flights.
- International trips, especially long-haul.
- Trips where you want one booking to manage.
- When you're sure of your return date.
When two one-ways can be better
If you want to fly out on one airline and back on another, or you're not sure when you'll return, one-way tickets give you room to move.
- Flying into one city and home from another.
- Mixing airlines for better times.
- Leaving the return open.
How to compare quickly
Search the round trip first, then search each direction as a one-way for the same dates. Compare the totals, including bags, before you decide.
This article is general information. Airline rules and entry requirements change, so check with the airline and official sources before you travel.