Big Planes at IAD

I will be in Washington D.C. next week, and I plan to do some spotting. I have been using the flight finder tool on FA and have figured out that I might be able to see the A380 and 747-8. Do they get other 747’s or 787’s? Thanks!

lmgtfy.com/?q=flightaware+iad

How does that show me every aircraft for the entire day though?

UA moved it’s 747 operation to SFO earlier this year so unless it is a special charter or freighter, no other 747 arriving IAD except the LH 748.

I don’t see any 788 service except if ET subs it in place of a 772.

Other heavies at IAD: A300F A310F A332 A333 A343 A346 B753 B763 B764 B772 B773 MD10F MD11F