Medical abortion is a lot more painful than surgical abortion, mainly because you can be put to sleep for surgical.
Vicodin will help, but you are going to feel a lot of pain, I don;t want to lie to you.
Medical abortion lasts 4-8 hours.
You really need to wait 24 hours.
NOT to scare you...
You are going to gush blood, it will be very very heavy, and you will have intense cramping, but try and take your pain meds BEFORE you insert the other pills.
You can go on a plane trip, but you wills till be bleeding.
I would have recommended surgical over medical abortion, as it only takes 5 minutes, and it is painless thanks to IV sedation. The bleeding is also a lot less severe...
You will likely bleed for 9-14 days, some days heavier than others.