Hi all- For this weekend's trip, I'm flying SFO-PHL-BWI on US. I am staying in Fairfax, VA, about 1:15 away from BWI. IAD is only about 20 minutes away. Numberous people have assured me that as long as there is space (which there is), there will be no problem switching to IAD. My question is- Is it worth paying an extra $20 (give or take a few bucks for exra fees) for the car rental to cut the driving time? The return in any case will be from BWI. Thanks in advance for the help!

[This message has been edited by a330300 (edited 12-11-2000).]