Should you leave the airport?
The rule is simple: under 6 hours between two flights, stay in the airport. Between 6 and 8 hours, a short outing is possible if your bags are checked through to your final destination and you already have your boarding pass. From 8 hours you can see one neighbourhood; from 12 hours, two sites or more.
Count about an hour to clear immigration on arrival (up to 90 minutes at busy times), the same again on the way back, plus 30 minutes by train into town, 30 more on the return, and at least 3 hours before departure for security and check-in. If your connection is on a single ticket, ask the airline what happens if you are late. Staying in the transit zone avoids any entry formalities, but going into the city means entering the country: check the rules for your passport (most Europeans enter visa-free for 60 days in 2026).
Luggage
The airport left-luggage counters take suitcases by the hour or by the day, which frees your visit: allow 100 to 200 baht per bag per day depending on size, at the counters on level B, near the Airport Rail Link station, and on level 2 near baggage reclaim. If you have a large suitcase, leave it: getting around Bangkok means a lot of walking, climbing stairs and taking the train.
Getting into town
The Airport Rail Link (City Line) is the most reliable option: it links Suvarnabhumi to Phaya Thai in 26 to 30 minutes, about every 10 to 15 minutes, for 45 baht, with a connection to the BTS at Phaya Thai and to the MRT at Makkasan (35 baht to Makkasan). Times, buses and taxis are detailed in our guide to Bangkok's airports. Do not accept taxi offers from touts in the arrivals hall: take the train or the official metered-taxi queue.
6 hours: one site and a meal
With 6 to 8 hours, aim for a single place near a station: the shopping and Siam district, with the Siam shopping malls, directly linked to Siam BTS station. You get air conditioning, inexpensive food courts and shops, a safe bet if it rains. If you have time left, add Lumphini Park (Sala Daeng BTS): you can walk under the trees, with monitor lizards roaming free, and the park is free. Head back to the airport with at least three hours to spare.
12 hours: the three great temples
With 12 hours it is possible to see the Rattanakosin island trio in the morning, if you land early: the Grand Palace (500 baht), Wat Pho (300 baht) and Wat Arun (200 baht), linked on foot and by a cross-river ferry, with covered clothing required. Then a cruise or boat ride on the Chao Phraya river to Sathorn pier and the BTS takes you back towards the Rail Link station. For the walking day, our itinerary Bangkok in one day gives an hour-by-hour schedule.
24 hours: a real day and a night
With 24 hours, sleep in town (or near the airport if your flight is early) and do the classic Rattanakosin day, then spend the evening in Chinatown or by the river: see our guide to Chinatown and the going-out ideas in Bangkok at night. For a place to sleep, the Siam or Sukhumvit area is the easiest from the Rail Link: see where to stay in Bangkok. The open-air museum park Ancient City, outside the city, takes a whole half day: keep it for a longer stay.
Mistakes to avoid
Do not leave without the boarding pass for your next flight if your bags are not checked through. Do not count on a taxi at rush hour to get back to the airport: plan on the train. Keep cash in baht for the train and meals. Keep a safety margin in case your arriving flight is late; if in doubt, stay at the airport. The well-known scams (fake guides, "the palace is closed") are described in our guide to safety and scams.
Going further
If your stay is longer, see Bangkok in 2 days and Bangkok in a week.
