Hi P.-
We just moved to HB from the Bay area in Nov (San Jose). I flew quite a bit on my own w/ my first one, and the best advice I can give you is check as much as you can (suitcase, toys, bed, etc). but keep her is her carseat & stroller all the way through to the gate & gate check the stroller. Keep the carseat w/ you for her to ride in, if there is room, or if you purchased a seat for her. Otherwise, gate check the seat too--if you check it through regular baggage check, supposedly it invalidates the warranty. I never looked into that, someone just told me that, so I've followed that advice as well.
If you are breastfeeding & she's awake during takeoff & landing, try to breastfeed her, it will help w/ her ears. Otherwise, have a bottle for her, or a pacifier (if you use one). Bring some "new" toys or books for her on the plane, and hopefully you'll be flying during some naptime for her? Good luck! We're taking our 1st flight w/ our 2nd one (4 1/2 months) this week (older sis is roadtripping it--he gets to fly for free).
Also, since you're new to the area, come check out our local MOMS club chapter:
http://playgroup.meetup.com/974/
-Jenny