Yes, our last trip I switched days a few times with no issue. They will make you pay the difference in fare, or will credit your account if the price goes lower.
.I think it is best to book 2 one-way trips. That way you can rebook each flight separately if the price goes down. If you book round trip and the flight going goes down but the flight returning goes up, you won't save anything.
If you book as a round trip, you can just as easily rebook the outgoing or return flight without impacting the price of the other flight. When you go into change flight, the system allows you check the flight that you want to change and you go through the process of either rebooking the same flight for less or a different flight and you get the credit for a future flight that needs to be used by the expiration of the date that you booked the original flight. I've done this many times. My flight to Punta Cana dropped $40 yesterday and another $40 today so I now have an $80 credit.I think it is best to book 2 one-way trips. That way you can rebook each flight separately if the price goes down. If you book round trip and the flight going goes down but the flight returning goes up, you won't save anything.
You can change one flight on a round trip. I recently got 1300 points back for May.I think it is best to book 2 one-way trips. That way you can rebook each flight separately if the price goes down. If you book round trip and the flight going goes down but the flight returning goes up, you won't save anything.