I have a reservation that was booked July 2021 for pickup at CHS mid-May 2022. Pick up and return a week later, both 2:30PM, cost all-in is $405. That same reservation booked today is closer to $575.

Due to a flight time change, I'm considering rebooking to an earlier flight that arrives late morning. Anyone know if I can change the pickup and return times (not the dates) on a National reservation without a price change? If so, what's the best way to go: online or phone agent? I would be sure to move both pick up and return times so that I don't incur any extra hourly or daily costs.

My first booking with National, thanks for any first-hand knowledge anyone can provide.

EDITED TO ADD: Thanks anyway, but after rebooking my flight I called National and the rep did change the pickup and return times with no change in the price. (Actually came out ahead just a bit, as some of the airport fees had actually gone down for a change.)