On southwest airlines about to land in jax in about 10 minutes so we could see small houses, fields, trees when we noticed a strange solid black object in vicinity of the left wing of our plane. it looked like a hairpin/bobbypin shape with black ball in front, like an opened bobby pin- long v shape but maybe a 30 degree angle. couldn't make out if the hairpin end was black smoke or solid – but the object went in the direction of it's "tail" end. and away from the plane going north of us as we headed east, to florida. it was about 2-3 pm. then i looked down out the window and noticed another v shaped object that then changed to look more like a solid black helicopter but then went v shape again…Very confusing as to what i was seeing. as the hairpin shaped ufo went away from us, the tail looked like one solid "tail". then it went far enough out of site. i will never forget it and decided to finally report this. i would say the ufo was as big as a sw plane. sorry, too shocked to get out my iphone… regret that.