Originally Posted by
r00ty
Well, it's likely you could go crossrail from Reading to H&H then on to Heathrow. As per connect today, but hopefully cheaper.
I've never used that route and don't know anyone that does. The Railair bus is quicker (on most days). Maybe Crossrail will improve timings though. A quick check has it at possibly a little over 30 minutes but the change is still inconvenient.