It's mentioned in the article. The difference is Hastert lives much closer to DC.
Yes, he does. But she certainly doesn't need that big of a plane to go nonstop to San Francisco.
A C-20, like Hastert used, has a range of well over 4,000 miles. DC to SF is 2650 miles
If she wanted something with range, the C-37A has more range than the big plane she asked for. But it only seats 12, so that's unacceptable.
The real issue is that Pelosi wants to flay a huge entourage around in her own 757 (which is what she's asking for)