If the church aisle is about a block long, you might suggest Sousa's Wedding March as plays about 9 minutes. I've not heard of any who ever got married to it. If any did, IMO they need to see a psychiatrist. In WWI Sousa was prejudiced about American's using Mendelsshon and Lohengren's he deemed a farce the latter not the music, the opera story. OK, IMO Sousa's march is good music, but too durn long.
Another long one is Walton's Crown Imperial - Coronation March recently used at the wedding of William & Kate, but for sure that's not a trumpet solo either.