Depart Chhatrapati Shivaji Maharaj International Airport early morning; typical non-stop flight duration ~4h30m and you arrive Bangkok early afternoon local time (check your ticket for exact times).
Arrive at hotel (Sukhumvit or Riverside recommended) and rest after the flight; standard check-in times 14:00. Good time to exchange cash and pick a local SIM.
Khao San has backpacker energy and street food; Asiatique opens ~17:00–23:00 and gives riverside views with shops and a Ferris wheel — both good light activities for day 1.
Start with simple Thai breakfast like jok (rice porridge) and fresh fruit from a street vendor — quick, cheap and filling. Most vendors open by 06:30–08:00.
Popular longtail or speedboat tours visit Phra Nang/Chicken Island/Poda and Tub Islands — snorkeling, swimming and beach time. Tours typically run 08:30–16:00; check inclusion of lunch and snorkel gear.
Scenic ferry or cruise (fast ferry ~2.5–3 hours) along Andaman coast; some operators offer daytime sightseeing or VIP cruise options, check exact departure time on your ticket. Arrivals in Phuket generally from 13:00–15:00 depending on service.
Full-day speedboat tour typically 07:30–17:30 including snorkeling and beach time; an alternative is a private charter for more comfort. Book in advance as these tours fill up.
Enjoy your final Phuket breakfast; check hotel check-out policy and arrange transfer to the airport (allow 60–90 minutes drive to HKT depending on traffic).
Organised minivan or train trip to Ayutthaya visits Wat Mahathat, Wat Phra Si Sanphet and Bang Pa-In Palace; most day tours run 08:00–18:00 and include guide and transport.