Thailand Trip Route Guide: Chiang Mai → Bangkok → Samui → Koh Tao → Chumphon → Bangkok → Australia

At-a-glance route + time summary

This itinerary covers: Chiang Mai → Bangkok → Koh Samui → Koh Tao → Chumphon → Bangkok → flight back to Australia. Times are averages and exclude delays.

Leg	Best option	Travel time	Buffer to add
Chiang Mai → Bangkok	Flight	~1 hr 10 min	+ 2–3 hrs (airport + city transfer)
Bangkok → Samui	Fly to USM (direct)	~1 hr 10 min	+ 2 hrs
Samui → Koh Tao	Ferry	~1.5–2 hrs	+ 30–60 min (pier + check-in)
Koh Tao → Chumphon	Ferry	~1.5–2.5 hrs	+ 30–60 min
Chumphon → Bangkok	Overnight train / flight	Train ~7–9 hrs / Flight ~1 hr	+ 1–2 hrs

Tip: For any flight-to-ferry connection, aim for morning flights and add extra buffer time.

Leg 1: Chiang Mai (CNX) → Bangkok (BKK/DMK)

Best for: resetting in Bangkok, connecting to islands, or catching an international flight later.

• Flight time: ~1 hr 10 min.

• Arrive at airport: 1.5–2 hrs before departure.

• Bangkok airport → city: ~30–90 min depending on traffic (Airport Rail Link is fastest from BKK).

• Recommendation: If you’re connecting onward the same day, choose flights earlier in the day to protect your schedule.

Leg 2: Bangkok → Koh Samui (USM)

Two main ways to do this:

• Option A (fastest): Fly direct to Samui (USM). Flight time ~1 hr 10 min.

• Option B (budget): Fly to Surat Thani (URT) ~1 hr 10 min + van to Donsak Pier ~1.5–2 hrs + ferry ~1.5–2 hrs (total ~4–6 hrs excluding waiting).

Recommendation: If you want to maximize island time, choose the direct USM flight. If you’re budget-focused, URT + van + ferry is usually cheaper.

Leg 3: Koh Samui → Koh Tao

• Transit: Ferry from Samui pier to Koh Tao.

• Sailing time: typically ~1.5–2 hrs (varies by operator/sea conditions).

• Arrive at pier early: 30–60 min for check-in and boarding.

• Recommendation: If seas are rough (monsoon season), choose earlier sailings and avoid tight connections.

Leg 4: Koh Tao → Chumphon

• Transit: Ferry from Koh Tao to Chumphon.

• Sailing time: typically ~1.5–2.5 hrs.

• On arrival: allow 15–45 min to reach the train station/bus terminal depending on transfer.

• Recommendation: If you plan to take an overnight train, pick a ferry that arrives with plenty of time before departure.

Leg 5: Chumphon → Bangkok

Choose based on comfort vs speed:

• Overnight train: ~7–9 hrs (good if you want to sleep and save a hotel night).

• Day train/bus: similar total time but less comfortable for some travelers.

• Flight (if available): ~1 hr flight time + airport buffer (often not as frequent).

Recommendation: Overnight train is a solid option if you’re not in a rush and want a smoother budget-friendly return.

Leg 6: Bangkok → Flight back to Australia

• Arrive at the airport early: 3 hrs before international departure.

• If you’re coming from another Thai city the same day: avoid tight connections—aim to be in Bangkok the night before.

• If departing from BKK: Airport Rail Link is the most predictable option during rush hour.

Packing + planning notes for this route

• Island legs: pack motion-sickness tablets if you’re sensitive to boat rides.

• Keep essentials in a daypack for ferry days (water, sunscreen, dry bag, power bank).

• Build buffer time: weather and sea conditions can shift ferry schedules.

Want me to turn this into a day-by-day itinerary?

Tell me how many days you have in each stop (Chiang Mai / Bangkok / Samui / Koh Tao) and your travel style (relaxed vs packed), and I’ll format it into a full trip plan.