Thailand is the most visited country in Southeast Asia for a simple reason: it delivers more per dollar than almost anywhere else. Bangkok’s street food costs a couple of dollars a plate, a clean guesthouse room on an island can be under US$30, and the flight network is so competitive that fares from most of Asia are among the cheapest on the map. The catch is that Thailand is bigger and more varied than a two-week trip can cover, and the weather is different in the north, the Gulf coast and the Andaman coast. This guide helps you pick the right region, the right month and the right budget.
Best time to visit Thailand
Thailand has three seasons, and the “best” one depends on which coast you are heading to.
- November to February (cool and dry): the most comfortable months everywhere, with low humidity in Bangkok and the north and calm seas on both coasts. This is peak season. Flights and hotels are at their most expensive from mid-December to mid-January, and popular islands fill up.
- March to May (hot): temperatures push past 35°C in Bangkok and the north, with smoky haze from crop burning in Chiang Mai from late February to April. The beaches are still good, and prices drop noticeably after Easter. Songkran, the water festival, falls in mid-April and is worth planning around, either to join or avoid.
- June to October (rainy): monsoon rain arrives in short, heavy afternoon bursts rather than all-day washouts. The Andaman coast (Phuket, Krabi, Koh Lanta) gets the most rain and rougher seas, while the Gulf coast (Koh Samui, Koh Phangan, Koh Tao) stays relatively dry until its own wet season in October and November. This is when fares and hotel rates are at their lowest, often 30 to 50 percent below peak.
For a beach trip in the northern summer, choose the Gulf islands. For a beach trip in the winter, both coasts work. For Chiang Mai and the north, November to early February is the clear winner.
Getting there: flights to Bangkok and beyond
Bangkok has two airports. Suvarnabhumi (BKK) handles most full-service international flights, while Don Mueang (DMK) is the low-cost hub used by AirAsia, Nok Air, Thai Lion Air and others. If you are connecting to a domestic flight, check which airport it leaves from; the two are 45 to 90 minutes apart by road depending on traffic.
- From Europe: Thai Airways, EVA, Qatar Airways, Emirates, Turkish Airlines and several European carriers fly direct or one-stop. Gulf and Turkish connections are usually cheapest.
- From South Asia and the Middle East: direct flights from Colombo, Malé, the major Indian cities, Dubai, Doha and Abu Dhabi. AirAsia and IndiGo often have the lowest fares from India.
- From the rest of Asia: the Bangkok, Singapore and Kuala Lumpur triangle is one of the most competitive air markets in the world. Sale fares appear constantly; being flexible by a few days can halve the price.
- Flying direct to the beach: Phuket (HKT) and Krabi (KBV) have international flights from the Gulf, Singapore, Kuala Lumpur, India and, in winter, Europe. Koh Samui (USM) is served mainly by Bangkok Airways, which owns the airport and prices accordingly.
Domestic flights are cheap and frequent. Bangkok to Chiang Mai, Phuket or Krabi is usually US$25 to US$60 one way if booked a few weeks ahead. Use the flexible date view when you compare flights to Thailand, and check both Bangkok airports plus a direct flight to the coast before deciding.
Where to go: the main regions
Bangkok
Give the capital at least two or three days. The Grand Palace, Wat Pho and Wat Arun cover the classic sights in a single morning. The real draw is the food, from the street stalls of Chinatown to the riverside restaurants, and the neighbourhoods: Sukhumvit for nightlife and malls, Silom for business and rooftop bars, the old town around Khao San for backpacker energy and easy access to the temples. The BTS Skytrain and MRT metro avoid the traffic; the Chao Phraya river boats are the cheapest sightseeing in the city.
Chiang Mai and the north
An hour’s flight north, Chiang Mai is cooler, calmer and cheaper than Bangkok. It has hundreds of temples, a walled old city, cooking classes, ethical elephant sanctuaries and a Sunday walking-street market that alone justifies the trip. From here, the road north to Pai and the loop through Mae Hong Son is Thailand’s best drive, and Chiang Rai’s White Temple is an easy day trip.
The Andaman coast
Phuket is the biggest and busiest island, with an airport, every hotel class and beaches to match every taste, from packed Patong to quiet Nai Harn. Krabi and Ao Nang are the gateway to the limestone cliffs of Railay and the Phi Phi islands. Koh Lanta is the relaxed family choice, and Koh Lipe in the far south has the clearest water. Best from November to April.
The Gulf coast
Koh Samui is the resort island with its own airport. Koh Phangan is known for the Full Moon Party but has a quiet north coast of yoga retreats and beach bungalows. Koh Tao is one of the cheapest places in the world to learn to dive. These islands are at their best from January to September.
Isaan and the less visited east
The northeast sees a fraction of the tourists, has the country’s spiciest food and Khmer ruins that rival Cambodia’s. Worth it on a second trip or for anyone who wants Thailand without the crowds.
A classic two-week itinerary
- Bangkok (3 nights): temples, Chinatown food, a river cruise and a day at Chatuchak weekend market if the timing works.
- Chiang Mai (3 nights): old-city temples, a cooking class, an elephant sanctuary and the night markets.
- Fly to the coast (7 nights): in winter, split between Krabi and Koh Lanta or Phi Phi. In summer, split between Koh Samui and Koh Tao.
- Bangkok (1 night): back to the capital for the flight home, or fly out direct from Phuket or Samui if your route allows.
What Thailand costs
Per person, per day, excluding international flights:
- Budget: US$30 to US$45. Hostels or fan-cooled guesthouses, street food, public transport and the occasional tour.
- Mid-range: US$80 to US$150. Air-conditioned hotels with a pool, restaurant meals, taxis and Grab rides, island boat trips and a domestic flight or two.
- Comfortable: US$250 and up. Four- and five-star resorts, private transfers and fine dining. Thailand’s luxury hotels are famously good value compared with the same brands elsewhere.
Hotel prices swing hard by season and island. A beach resort that costs US$200 a night in January can be US$90 in June. That is where it pays to compare Thailand hotels across several booking sites for your exact dates. National park entry fees are charged to foreigners at a higher rate, typically 200 to 400 baht, and the marine parks around Phi Phi and the Similan Islands add a fee on top of boat tours.
Getting around
- Domestic flights: the fastest way between regions and rarely expensive.
- Trains: the overnight sleeper from Bangkok to Chiang Mai is comfortable, cheap and a Thailand experience in itself. Book a week or more ahead for lower berths.
- Buses and minivans: go everywhere, cheaply. Government buses are safer and more comfortable than tourist minivans.
- Ferries: connect the islands. Combined bus-and-ferry tickets from Bangkok or Surat Thani to the Gulf islands are easy to book.
- In cities: Grab is the ride-hailing app and removes any fare negotiation. Bangkok’s Skytrain and metro are cheap and air-conditioned.
- Scooters: tempting on the islands, but you need an international driving permit with a motorcycle endorsement, and accidents are the most common serious injury among visitors. Wear the helmet.
Practical tips
- Many nationalities get 30 to 60 days visa-free on arrival. Check the current rules for your passport, since Thailand has changed them several times in recent years.
- Cover shoulders and knees at temples and remove shoes. The Grand Palace enforces this strictly and rents cover-ups at the gate.
- Carry cash. Cards work in hotels and malls, but markets, street food and island guesthouses are cash only. ATMs charge a fixed fee per withdrawal, so take out larger amounts less often.
- Drink bottled or filtered water. Ice in restaurants and hotels is factory-made and safe.
- Bargain politely at markets, never at restaurants or for metered taxis. A smile goes further than a hard line.
- The monarchy is deeply respected and protected by law. Do not joke about it.
- Travel insurance that covers scooter riding and boat trips is worth every dollar.
Why Thailand works for almost everyone
Backpackers, families, honeymooners and luxury travellers all come back to Thailand, and they rarely spend more than they planned. Pick the coast that matches your travel month, book the domestic flights early, and compare fares and hotels across providers before committing. The savings on a two-week trip can easily cover another week somewhere else.