Short answer
A realistic 2 week Thailand itinerary uses three bases: Bangkok for 4 nights, Chiang Mai for 4 nights and one island coast for 5 nights, which leaves 1 night as a buffer. The Bangkok to Chiang Mai train takes about 10 to 13 hours, and the coast depends on the month: the Andaman side (Phuket, Krabi) from November to March, the Gulf side (Koh Samui) from April to September. For visitors from the 60 countries on Thailand's list, 14 nights fits within the 30-day visa exemption that applies since 15 September 2026.
The plan in one line: three bases, two transfers
Spend 4 nights in Bangkok, 4 nights in Chiang Mai and 5 nights on one island coast, and keep the last night as a buffer before your flight. That gives you the temples and street food of the capital, the mountains and elephants of the north, and a beach and boat days in the south. Each move costs a half to a full day, so three bases is the sensible limit for 14 nights.
The order matters less than the season. Chiang Mai is best from November to January on the 1991 to 2020 normals, with only 1 to 3 rainy days a month, and its burning season runs from February to May. The island coast should follow your month, as the Andaman side is driest from December to March and the Gulf side from February to April. Our best time to visit Thailand guide has the numbers.
Fly into Bangkok and out of the island airport if you can, so that you do not backtrack. Leave the buffer night at the end of the trip, not the middle: a delayed flight or a closed boat day then costs you a spare night, not a missed connection. If you add a fourth base, take the nights from Bangkok or Chiang Mai, not from the coast, where one boat day can be moved by the weather.
Nights 1 to 4: Bangkok and a day trip
Spend your first morning resting, then book the old city on day two. Our Grand Palace, Wat Pho and Wat Arun tour is from $75 per person and takes about 4 hours on foot, starting at about 8:30 am near the Grand Palace. The price includes all three entrance tickets, which cost 500, 300 and 200 baht at the gate. Cover your shoulders and knees; the palace sometimes closes for royal ceremonies, so check its official calendar before you fix the date.
Use days three and four for a day trip and an evening. The Ayutthaya day trip is from $25 per person and about 9 hours, with temple fees of around 280 baht paid on the day, and the floating market and railway market tour is from $25 and about 7 hours. For the evening, our tuk-tuk food tour is from $40 for about 4 hours. Choose one day trip, not both.
Nights 5 to 8: Chiang Mai, by sleeper train or flight
The Man in Seat 61, a rail guide updated on 1 October 2026, lists daytime and night trains from Bangkok's Krung Thep Aphiwat Central station to Chiang Mai. Train 7, an air-conditioned daytime express, leaves at 07:30 and arrives at 17:50, about 10 hours; train 9, which the guide rates the best sleeper, leaves at 18:40 and arrives at 07:15, about 12.5 hours; train 51 leaves at 22:30 and arrives at 11:40. Check the State Railway of Thailand timetable before you book, because times change. In short, expect 10 to 13 hours. A flight is faster, but the sleeper saves a hotel night.
In Chiang Mai the main choices are our elephant sanctuary and Doi Inthanon tour, from $40 per person for 10 to 12 hours, with no riding and a light jacket advised for the summit, and the Thai cooking class, from $30 for about 6.5 hours. A Chiang Rai temples day is from $40 but runs 12 to 13 hours, with about 3 hours each way by road, so take it only if you have a spare day.
On the elephant and Doi Inthanon day, the national park fee of 300 baht per adult and 150 per child is paid on the day unless your quote says otherwise. The order of the stops can change with the weather, and the top of the mountain is much cooler than the city, so bring a light jacket and clothes you can get wet and muddy for the elephant bath.
Nights 9 to 13: one island coast, chosen by month
From November to March, fly south to Phuket or Krabi. Phuket Airport's normals give 32 to 117 mm of rain a month from December to March. Our Phi Phi and Maya Bay speedboat day is from $75 per person for about 8.5 hours, the James Bond Island and Phang Nga Bay canoe tour is from $85 and the Phuket elephant sanctuary morning is from $95. Book one boat day, then a quiet day.
From April to September, fly to Koh Samui instead, where the normals show 83 mm in April and 102 to 134 mm a month from May to September. The Ang Thong Marine Park tour is from $50, and the Koh Tao and Nang Yuan day is from $55. Avoid the Gulf in November, when Samui averages 445 mm, and note that Ang Thong is closed from 1 November to 15 December 2026. Our Andaman or Gulf guide explains the split.
Entry steps before you fly
Since 15 September 2026 the Tourism Authority of Thailand says passport holders from 60 countries, including the UK, the United States, Canada, Australia, India and most of Europe, can enter for tourism for up to 30 days, replacing the earlier 60-day exemption. Fourteen nights fits inside that, but check the entry conditions for your own nationality before you book. Our visa exemption guide keeps the detail.
Every non-Thai traveller, including children, must also complete the Thailand Digital Arrival Card online. The Immigration Bureau says to submit it within 3 days before arrival, counting the day you land, on its own site, tdac.immigration.go.th. The card is valid for one entry only. Do it the day before you fly, with your flight number and first address ready, and keep the confirmation on your phone.
What to cut, and what to book first
If a day feels too full, cut Chiang Rai first, then the second day trip. If your dates are in February or March, consider replacing Chiang Mai with a second night on the coast, because the north's burning season runs from February to May and on 4 March 2026 PM2.5 exceeded the standard in 16 northern provinces, according to The Nation. Check the daily reading if you go.
Book in this order: flights and the Bangkok to Chiang Mai train first, then the elephant morning or the boat day you care most about, because our Phuket elephant sanctuary is often full one to two weeks ahead and up to two weeks from November to April. The Grand Palace tour can follow. Send us your dates and your hotels, and we confirm availability, pickup times and totals on WhatsApp before you pay.
Practical checklist
- Fix the island coast by month first: Andaman from November to March, Gulf from April to September.
- Book flights and the Bangkok to Chiang Mai sleeper train before tours, and check the train times on the State Railway of Thailand site.
- Cover shoulders and knees for the Grand Palace, and check its official calendar for closures.
- Complete the Thailand Digital Arrival Card within 3 days before you land, on tdac.immigration.go.th only.
- Keep the last night as a buffer before your flight home.
Questions and answers
Is 2 weeks enough for Thailand?
Yes, for three bases: about 4 nights in Bangkok, 4 in Chiang Mai and 5 on one island coast, with a buffer night. It does not cover both coasts as well as the north, so pick one island coast.
How long is the train from Bangkok to Chiang Mai?
About 10 to 13 hours. The Man in Seat 61 lists a daytime train at 07:30 arriving 17:50 and night trains arriving between 04:05 and 11:40. Check the State Railway of Thailand timetable before you book.
Should I do the north or the islands first?
Let the season decide. In the cool months the north is at its best from November to January, and the Andaman side improves from December. For April to September, Koh Samui is the drier island coast.
Do I need a visa for 14 nights in Thailand?
Not if you hold a passport from one of the 60 countries on the Royal Gazette list: the tourist exemption has been 30 days since 15 September 2026. Check your own nationality's conditions, and complete the digital arrival card.
Can I do Phuket and Koh Samui in the same two weeks?
You can, but each coast then gets fewer nights and the transfer takes most of a day. In any single month one of them is on its wet side, so we suggest one coast per trip.