HOW TO SPEND THE PERFECT 3 WEEKS IN THAILAND: MY ITINERARY FROM NORTH TO SOUTH

Dreaming of a trip to Thailand? Prepare to spend 3 weeks in Thailand, with this itinerary. From north to south, experience all the treasures of one of the best countries in South East Asia.

Thailand is a vast country with a thousand different faces. Want to explore this must-visit destination in Southeast Asia? This 3-week itinerary will guide you from northern to southern Thailand. Get ready to wander through local markets, explore rice paddies, dive into coral reefs teeming with life, or relax on a paradise beach under the shade of a coconut tree. Sounds cliché? Too good to be true? Trust me, Thailand really is a traveller’s dream!

Thailand had been on my radar for years, but I was worried it might feel overrun or spoiled by mass tourism. And let’s be clear: of course, Thailand is touristy. Of course, there are crowds just chasing cheap booze, all-night partying and a sunbed to roast on all day. But reducing the country to that image would be missing the point entirely. I honestly didn’t expect to fall in love so quickly with this warm, welcoming country and its postcard-worthy landscapes. In the end, it all comes down to choosing the right spots! And Thailand doesn’t leave anyone indifferent.

Thailand was my first solo travel destination. With my laptop under my arm, I flew off for a month of adventures across the islands of the Andaman Sea, on the south west of the country. This trip actually left such a mark on me that I returned a year later to share its wonders with my significant someone and discover even more sides of the country. Between its spectacular karst landscapes, its mouthwatering cuisine and the warm hospitality of its people, Thailand is one of those countries I would not hesitate to go back again and again.

To be completely honest, this 3-week itinerary across Thailand is a liiiittle tiny bit full-on. It’s designed for those who, like me, are always afraid of missing out and want to see as much as possible. If I were to do it again, I might skip one stop to spend more time in each place. That said, we loved every step of it and I never regretted the packed schedule, as it allowed us to make the most of our adventure through this country I love so much.

Last update: February 4th, 2025

Map of Thailand showing our itinerary for 3 weeks in Thailand

Chapters - 3 weeks in Thailand

Day 1: Arrival in Bangkok and Departure for Chiang Mai

I always tend to save big cities for the end of a trip. First, because I like to have at least one day there before my flight home — just in case of any unexpected delays. That way, I don’t have to visit the same place twice and I don’t waste one single day on my trip. Second, because big cities aren’t exactly my cup of tea. I’ll admit, after a few days in a bustling metropolis, I’m often relieved to leave, and I return home with less hesitation. But if I’m sipping a coconut on a paradise beach, someone practically has to drag me onto the plane 😂🥥🌴

Which is why, as soon as we landed at Bangkok airport, we hopped onto a domestic flight. Destination: Chiang Mai, in the far north of the country! With the time difference and travel fatigue, the last leg of the journey was a bit tough. So we spent this first afternoon resting and recovering from the trip. 

But not before enjoying our first Tom Yum Kung, a delicious curry and lemongrass soup 🍜 Nothing better to bounce back!

Homme marchant sur un pont en bambou à Wat Jetlin à Chiang Mai

How to get to Chiang Mai?

By Plane ✈️

Since we landed at Bangkok airport, it made the most sense for us to take a domestic flight to Chiang Mai. The journey takes about 1h15 and is served by several airlines, including Air Asia, Thai Lion Air, and VietJet Air. We went with the latter and had no issues (aside from the fact that the legroom is very tight — but I think that’s a common theme across Asia 😂).

💶 Around €30 to €60 on average.
Note: the price doesn’t include checked baggage, and the total can add up quickly if you need to add a suitcase!

By Bus 🚌

If you’re already in the country, there are overnight buses connecting Bangkok to Chiang Mai. We didn’t get the chance to try them ourselves, but it’s one of those classic experiences in Asia, so give it a shot! It’s also the most budget-friendly way to get there. Day buses are available too, but the time lost makes them not really worth it. Just make sure to choose a comfortable one!

💶 From €18

ESSENTIAL APP | In Asia, the app 12Go is a must for planning your transport. It works very well, especially for booking buses. You’ll also find customer reviews there, which is super helpful to get an idea of the transport quality.

Days 2 to 4: Chiang Mai

A true reflection of Thai culture, Chiang Mai is the perfect place to ease into the country’s rhythm and soak up its enchanting atmosphere. 

From the very first moments, it surprises you with its authentic and laid-back vibe. While Bangkok runs at full speed, Chiang Mai seems to take its time. Although it’s the second-largest city in the country, it’s far from what you might imagine an Asian metropolis to be. While it does have the charming chaos typical of Asia, it’s above all a human-sized city — one where you instantly feel at home.

Figure marchant entre deux temples à Chiang Mai en Thailande.

Chiang Mai is a university town, and that might explain its vibrant energy. It’s likely also what draws so many expats and digital nomads. But most of all, it’s known for its over 300 temples scattered throughout the city, such as Wat Phra Singh, Wat Chedi Luang, and the Wat Phra That Doi Suthep temple, a sacred site popular with locals. Perched on the mountainside, it offers a breathtaking view over Chiang Mai.

With its lively food markets and rich culinary scene, Chiang Mai is also a paradise for food lovers. Khao Soi, a regional dish made with noodles and chicken in a creamy curry sauce, is an absolute must-try.

Des statues d'éléphants ornent le temple Chedi Luang à Chiang Mai
Vue latérale du temple Wat Chedi Luang à Chiang Mai
Les dorures du temple Wat Phra Singh à Chiang Mai

ALSO READ | What to do in Chiang Mai? Activities and local tips (article coming soon)

WHERE TO SLEEP | The Rodman Hotel, EllieBum Boutique Hotel

Days 5 to 7: Pai

On the 5th day of our 3 weeks in Thailand, we left Chiang Mai for Pai, a picturesque village nestled in the lush mountains near the Burmese border. Huddled in the back of a minivan, we embarked on a somewhat bumpy 4-hour bus ride. Between the 700 curves and a driver pumped full of energy drinks who thought he was in Mario Kart, you’ll need a strong stomach. Luckily, the scenery flashing by the window more than made up for the discomfort.

Just a decade ago, Pai was an off-the-beaten-path destination, beloved for its bohemian spirit and hippie vibes. Today, this small town draws more and more backpackers and has become a must-stop on northern Thailand itineraries. Its growing popularity had me a bit worried. And yes, elephant-print pants (and everything that goes with them) have taken over the streets — but I didn’t find the place spoiled at all. It still holds onto a relaxed vibe and a “middle-of-nowhere” charm that’s hard to resist. In fact, we would’ve happily stayed a few days longer!

But what really makes Pai so appealing is its closeness to nature and its breathtaking scenery. Just a few kilometers out of town and you’re surrounded by rice fields with sweeping views of the surrounding mountains.

Vue panoramique des rizières luxuriantes à Pai

Up early on our second day, we hit the road to explore one of Pai’s main attractions: the Kho Ku So Bamboo Bridge. Stretching 800 meters across the rice fields, this bamboo walkway turned out to be a lovely surprise. And yet, our first impression wasn’t the most promising. The heart-shaped viewpoints and Instagram-friendly swings were a bit off-putting at first. But once past that slightly kitschy entrance, we quickly got swept up by the beauty of the lush surroundings. It was clear: Pai delivers the landscapes I had dreamed of seeing in northern Thailand.

On a whim, we decided to join a last-minute tour to visit Tham Lod Cave, a massive cave complex just a few kilometers from the Burmese border. Unfortunately, three of the four caves were closed during our visit. Still, the remaining one — the main entrance — was impressive in its own right. After floating a few meters along the underground river on a bamboo raft (more for the tourists’ enjoyment than actual necessity, I suspect), we entered this colossal space, lit only by the ghostly glow of our guide’s oil lamp. With its 50-meter-high ceilings, the place felt like a cathedral — an impression amplified by its stunning natural columns and colorful rock formations.

Coucher de soleil depuis Pai Canyon en Thailande
Couple en train d'admirer le coucher du soleil sur le Pai Canyon
Jolie lumière illuminant une montagne de la vallée à Pai Canyon au coucher du soleil

And to end the day on a high note, Pai Canyon is the perfect place to watch the sunset. Once again, this site is one of the must-sees in Pai, and I was worried it might not live up to the hype. I was wrong! Yes, it’s a popular spot, and most tourists gather there in the late afternoon, but it’s spacious enough that it doesn’t feel overcrowded. And what a sight it is! The warm golden light at the end of the day brings out the rich red tones of the earth and highlights this landscape shaped by erosion. A perfect way to wrap up our stay in Pai with a memorable view.

READ MORE | What to do in Pai? Activities and local tips (article coming soon)

WHERE TO STAY | Pai Princess Resort, Pai Village Boutique Resort, Pai Nam Now

Day 7: Krabi

The 7th day of our trip to Thailand was a travel day. From Pai, we once again braved the famous road with its 700 curves to reach Chiang Mai, before catching a flight to Krabi. This journey was really just a step toward our next destination: Koh Lanta.

In Krabi, we chose to stay near the airport for convenience, without taking time to explore the city. According to other travelers, it doesn’t have much to offer. In fact, most people who say they’re going to Krabi are actually staying in Ao Nang, a nearby town that’s much more popular. From there, it’s easy to reach famous spots like Railay Beach, known for its dramatic karst cliffs and idyllic beaches.

Days 8 to 10: Koh Lanta

Koh Lanta is an island that left a deep impression on me.

During my first visit in 2022, it was my biggest crush. So much so that I didn’t hesitate to return during my 3-week trip to Thailand, this time with the person I love. I wanted to share with them this little slice of paradise that had moved me so deeply. It’s hard to pinpoint exactly what makes Koh Lanta so special, but the island has an irresistibly captivating energy.

Vue supérieure sur la plage de Nui Beach à Koh Lanta.

And yet, Koh Lanta isn’t the most spectacular island in the Andaman Sea. Unlike its famous neighbor, Koh Phi Phi, you won’t find pristine white-sand beaches and crystal-clear waters here. That’s not to say its beaches aren’t worth visiting — they’re simply more wild and natural, and don’t quite fit the typical postcard image people often associate with Thailand. And if you’re looking for a party island where you can drink cheap booze until sunrise, Koh Lanta definitely isn’t the place for you. Here, the vibe is much more relaxed and family-friendly, with most bars closing by 2 a.m. at the latest.

In Koh Lanta, all you need to do is go with the flow. Hop from beach to beach, sip a smoothie or an ice-cold beer with your feet in the sand, or simply watch the sunset from Long Beach… Here, it’s all about life’s simple pleasures. But adventure is never far away — whether you’re heading out on a diving or snorkeling trip to nearby islets, or searching for monkeys in Mu Ko Lanta National Park, Koh Lanta offers unforgettable experiences.

Phare du Parc Mu Ko Lanta par un jour orageux
Plage déserte à Koh Lanta en ThaIlande
Bateau de pêche décoré d'ampoules à Koh Lanta.

READ MORE | 7 Must-Do Activities in Koh Lanta (article coming soon)

Days 11 to 13: Koh Lipe

Koh Lipe is the “postcard-perfect” stop on our Thailand itinerary.

Just like Koh Lanta, I fell in love with this island during my first trip to Thailand, and this second visit only deepened that feeling.

Despite its small size, the island has everything you could wish for: beaches made for pure relaxation, stunning snorkeling spots accessible right from the shore, and vibrant coral gardens ideal for diving. Here, you walk, swim, dive — and most of all, you slow down and soak in the unique vibe of this little Thai paradise.

Ile de Koh Lipe en Thailande au crépuscule, vue de la mer

ALSO READ | Is Koh Lipe Worth It? (coming soon)

Days 14 to 17: Khao Sok National Park​

Khao Sok National Park was one of the stops I was most looking forward to during our 3-week trip to Thailand. Spanning 740 km², it’s covered in stunning virgin rainforest, home to elephants, gibbons, and Asiatic black bears. There are even tigers — though don’t get your hopes up too much: the jungle is so dense that you’d need incredible luck to spot one. But hey, you never know! Animals do sometimes come to the lake to drink.

Vue panoramique du parc Khao Sok avec silhouette des montagnes karstiques en fond

Cheow Lan Lake, at the heart of the national park, is a true gem. With its karst peaks rising from emerald waters and its misty atmosphere, the place has an almost otherworldly magic.

Paysage brumeux au coucher du soleil dans le parc national khao sok
Forêt noyée dans la brume au parc national Khao Sok, avec un palmier penché au-dessus de l'eau

To explore the park, we chose the Cheow Lan Lake Overnight – EXPLORER tour with Our Jungle Camp, a perfect option for avoiding the crowds. We followed our guide, Lek, on a jungle trek to discover ancient, Avatar-like trees and bat-filled caves. Then, we boarded a traditional longtail boat to reach our floating bungalows. Though rustic — floor mattresses, basic bathrooms, and wooden planks that reveal the water below — the accommodations only added to the charm of the experience.

A quick word of warning: watch out for leeches in the jungle! One sneaky little stowaway managed to join our trip 😂 We were wearing long clothing, but according to our guide, wearing shorts can actually be more practical since it’s easier to spot them. In the end, it’s hard to say what the best outfit is — but staying alert is definitely a good idea.

ALSO READ | Tips for Visiting Khao Sok National Park in Thailand (coming soon)

Days 18 to 21: Bangkok

Our 3-week trip to Thailand is coming to an end! And as mentioned at the very beginning of this article, it’s in bustling Bangkok that we drop our backpacks one last time.

What can I say about Bangkok? The Thai capital left me with a bittersweet feeling. A city of contrasts, it shows two faces: on one side, majestic temples, a breathtaking Grand Palace, outstanding cuisine, lively markets, and stunning rooftops. On the other, a grittier reality: poverty, urban chaos, dirt, and above all (for my poor European nose), some truly unbearable smells.

Despite its contrasts and imperfections, Bangkok is a fascinating city — and one that is absolutely worth exploring.

Détail en porcelaine du Grand Palais à Bangkok
Silhouette avec ombrelle asiatique dans l'encadrement d'une porte au temple Wat Arun
Vue du monument principal du palais royal à Bangkok

Bonus: Ayutthaya

If you have one more day to spend exploring Thailand, you can add a day trip to Ayutthaya, the former capital of the Kingdom of Siam. Destroyed in the 18th century by the Burmese army, the city still preserves many remarkable ruins.

We expected a single archaeological complex centered in a historic area, but the sites are actually quite spread out. To get from one to another, you can hop in a tuk-tuk or rent a bicycle or motorbike. Thinking it would be a fun experience, we chose to cycle — but the oppressive heat quickly made us regret that decision. If we had to do it again, we’d definitely go for a scooter.

Wat Chaiwatthanaram is one of the best-preserved temples and one of the most beautiful sites in Ayutthaya. We arrived around 9–10 a.m., and the sun was already beating down. For a better experience, it’s best to visit late in the day, when the setting sun casts a golden glow on the stone. Don’t miss Wat Mahathat, either — it’s where you’ll find the famous Buddha head entwined in tree roots.

To be completely honest, while we did enjoy the visit, we left feeling a bit underwhelmed. I imagine that if you’ve already seen the ruins of Angkor in Cambodia, for example, Ayutthaya might feel like a bit of a letdown. The heat definitely impacted our experience, and I have to admit we didn’t plan the visit very well. In the end, we missed out on the city’s full charm. To make the most of it, it’s probably better to stay overnight — that way, you can enjoy the sunset over the ruins and be out early the next morning before the heat sets in. It’s also the kind of place that would really benefit from a guided tour.

Tête de Boudda emprisonnée dans les racines d'un arbre à Ayutthaya en Thaïlande.
Auri's Way devant l'un des vestiges d'Ayutthaya
Complexe de ruines à Ayutthaya, l'un des plus anciens sites historiques de Thailande

How to get to Ayutthaya from Bangkok ?

By Train

Taking the train is the most budget-friendly and one of the most authentic ways to travel. From Hua Lamphong Station in Bangkok, several trains depart daily for Ayutthaya. The journey takes around 1.5 to 2 hours, and tickets range from 20 to 330 baht, depending on the class (3rd class with fan or 2nd class with air conditioning). It’s a great way to travel like the locals while enjoying the scenery.

By Minivan

Minivans leave regularly from Bangkok’s bus terminals, especially from Mo Chit (Northern Bus Terminal). The ride takes about 1.5 hours and costs around 100 to 150 baht. It’s a convenient and fast option, though minivans can be crowded and slightly less comfortable.

By Car or Taxi

Renting a car or taking a private taxi is a comfortable and flexible option, especially if you’re traveling in a group. The drive takes about 1 to 1.5 hours, depending on traffic, and costs between 1,000 and 2,000 baht one way by taxi.

On a Guided Tour

For ease and convenience, you can book a day trip from Bangkok. These tours usually include round-trip transport by van or boat, a guide, and entrance tickets to the main sites. Prices start at around 1,500 baht per person.

Whichever option you choose, it’s best to leave early in the morning to avoid the crowds and the heat, and to make the most of your day in Ayutthaya.

After Bangkok, it’s time to head home! I hope this 3-week itinerary in Thailand will be helpful as you plan your next vacation to the Land of Smiles 😊

Of course, it’s impossible to see everything in just three weeks. This is just one itinerary among many, and Thailand still has so many hidden gems that I hope to explore someday.

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