All--

I'm trying to fly SFO to JFK later in the year, and I'd like to do so in a X-4-X seat configuration in economy (I'd like to take the four seats in the middle). Cruising seat guru, I think that it's going to have to be on an 747 or an A330 (everyone else is a 3-3-3, or worse, just a 3-3), unless I've missed something. Is there any other plane that anyone who flies that route that has that config?

My real question is thus: what's the right tool to see which airlines have placed which equipment on which routes? Just because AA has A330s in the fleet, for example, is no indication that they're being used on that route. I'm flying with young kids, so equipment type is actually a consideration. How do I know which airlines (and which flights) are being operated on what plane types?

Thanks!