Here are the system specs for Microsoft Flight Simulator X:
System Requirements
Microsoft® Windows® XP SP2 / Vista
PC with 1 GHz equivalent or higher processor
256 MB of system RAM for Windows XP SP2 / 512 MB Vista
14 GB available hard disk space
DVD-ROM drive
32 MB DirectX 9 compatible video card required
Sound card, speakers or headphones required for audio
Microsoft Mouse or compatible pointing device
56.6 Kbps or better modem for online play
It certainly sounds like that your MacBook meets all of those system requirements. Furthermore, if you go to Intel's website and search under the list of compatible games for the new MacBooks it lists Flight Simulator X Deluxe Edition.
http://support.intel.com/support/graphics/intelgm965/sb/CS-026146.htm
I unfortunately, have not attempted Flight Simulator X over Boot Camp on my MacBook "SR" but I'll happily give it a go this weekend and report my findings to see if they're similar.