is it cheaper to book a round trip flight or one way flights

is it cheaper to book a round trip flight or one way flights?
like instead of round trip book a flight into Miami from Boston then go and find another one way flight from Miami to Boston? The reason I ask is because I want to go to Miami for a week but the round trip cost is over $600. that's way to much where I saw a 1 way trip for $89. to miami so can that be done that way?
Air Travel - 6 Answers
Random Answers, Critics, Comments, Opinions :
1 :
Occasionally it's cheaper to buy two one-way tickets. The best answer is to price it both ways (round trip and two singles) and buy the cheapest.
2 :
Depends on the airline.There are many flight types and seating arrangements but most of the time companies make it so that the round trip is cheaper than the straight flights.
3 :
Usually roundtrip is cheaper esp when you add in taxes and fees (2 one-way tickets would be double the taxes and fees). Wherever you saw the 89 one way then you should be able to 89 there and 89 back. The $600 roundtrip might have been so much because of the dates you selected. Changing your date by one day can make a big difference in price. I really like using kayak.com for checking flights. Southwest, Airtran, JetBlue have great fares too that usually dont show up on search engines like kayak.
4 :
It all depends on the airline youa re flying with. Not to mention the the Airport definitly matters. Southwest Jetblue Airtran Spirit Alligent Air Are some airlines where you can purchase a normal cheaper one way ticket. Other than that the rest of them good luck but like I stated before it all depends on the airport and the airlines serving the airport.
5 :
Usually the two singles only work out cheaper than the return when you buy from two different airlines. The ticket price has to do with how many seats are left.
6 :
go to BookMe. You can compare prices on all the major travel sites from one location. It's the only way you can guarantee the cheapest prices online.