Bangkok

Bangkok has two airports. Suvarnabhumi (BKK) is 30 km east of the city center and handles 95% of international arrivals. The Airport Rail Link City Line is the fastest and cheapest connection: take it from the Suvarnabhumi station at Level B1 to Phaya Thai for $1.30, then transfer to the BTS Sukhumvit Line. The full journey to a Sukhumvit hotel takes 35-45 min. A metered taxi from the official airport queue on Level 1 costs $10-15 to most central neighborhoods, including the $1.40 airport surcharge and tolls. Grab and Bolt both operate; an airport-to-Asok pickup runs $10-18. The trap: drivers at the kerb outside arrivals demand a $20-28 fixed fare and refuse to switch on the meter. Walk past them to the public taxi rank at Gate 4 or 7 on Level 1 and collect the printed dispatch slip from the kiosk before boarding. Don Mueang (DMK) handles most AirAsia and Nok Air flights; the A1 bus from the terminal to BTS Mo Chit costs $1 and takes 20-30 min in normal traffic.

Bangkok runs three separate rail systems: the BTS Skytrain (elevated, Sukhumvit and Silom Lines), the MRT (subway, Blue and Purple Lines), and the Airport Rail Link. They share major interchanges but charge separate fares unless you tap with a contactless Visa or Mastercard, which works across MRT, BTS Gold, and the SRT Red Line. BTS single rides cost $0.50-1.90 by distance; the One-Day Pass is $4.30 and pays off after 4 rides. Buy a Rabbit Card at any BTS ticket office ($6 issue + $3 starting credit) if you will be in town more than 3 days. The Chao Phraya Express orange-flag commuter boat is the fastest way along the river: a single ride costs $0.45 and the route stops at Wat Arun, Grand Palace pier (Tha Chang), and Yaowarat. The blue-flag tourist boat day pass at $4.30 runs the identical route 5 min apart. Validate by tapping in and out at the turnstiles; the MRT inspects randomly and fines $14 for invalid taps. Use Google Maps for routing; it shows live train times in English. Ride-hail: Grab and Bolt both work city-wide; a 5 km cross-city fare runs $4-8 and rises 50-80% during the 7-9am and 5-8pm jams. Skip tuk-tuks for any distance over 1 km. They cost more than a metered taxi and refuse the meter. Avoid unmarked taxis around tourist sites; just walk to the next cab if a driver refuses the meter.

The major tourist zones of Rattanakosin (Old City), Sukhumvit around Asok and Phrom Phong, Silom near Lumphini Park, Sathorn, and Siam Square are safe to walk during daylight and at night. Avoid the wholesale market alleys around Khlong Toei and the deep sois south of Lat Phrao after dark. Three active scam patterns: (1) Outside the Grand Palace, an English-speaking man in business clothes claims the palace is closed for a Buddha day or royal ceremony and waves down a waiting tuk-tuk for a discount city tour. The tuk-tuk circuit ends at commission-paying gem stores and tailors. The Grand Palace opens 8:30am-3:30pm every day. Walk straight to the official ticket gate at the south end of Sanam Luang field. (2) Metered taxis near tourist sites refuse the meter and quote a $5.50-8.50 flat fare for a 5 km ride. Walk to the nearest BTS or open Grab on your phone; the legal meter rate is $1 flag-fall and $0.18 per km. (3) Tuk-tuk drivers offer a $0.55 sightseeing loop that ends at gem shops where the driver collects a per-head commission worth more than the ride. Never accept a sub-$3 tuk-tuk fare for more than one stop. Solo female travel: BTS and MRT trains have a women-only car at the front during rush hours, marked with a pink sign on the platform. The Tourist Police hotline is 1155 (24/7, English-speaking). Bangkok Hospital: 2 Soi Soonvijai 7, New Petchburi Road; nearest MRT: Phetchaburi (10-min walk). US Embassy Bangkok: 95 Wireless Road; nearest BTS: Phloen Chit (3-min walk).

Rattanakosin (Old City) puts you within walking distance of the Grand Palace, Wat Pho, and the Chao Phraya boat piers; the area runs quiet after 9pm with limited dinner options and no BTS access, meaning taxi or tuk-tuk for any cross-city move. Sukhumvit around Asok, Phrom Phong, and Thong Lor sits on the BTS Sukhumvit Line with the densest cluster of mid-range hotels, full-size supermarkets, and air-conditioned malls; two skytrain stops from Siam and four from the Chao Phraya ferries. Silom around Sala Daeng connects to both BTS lines at the Sala Daeng interchange and borders the 57-hectare Lumphini Park; expect business-hotel pricing and weekday lunch crowds. Riverside near Saphan Taksin BTS and Sathorn pier offers direct Chao Phraya Express access to the Old City temples in 20-30 min; pier-front room rates run 40-60% above interior Silom blocks. Siam Square at the BTS Siam interchange between both Skytrain lines puts you next to MBK Center, Siam Paragon, and Jim Thompson House; expect dense traffic and the noisiest commercial pavement in central Bangkok.

The current reality in Bangkok is that a Visa or Mastercard contactless tap now works directly on the MRT Blue, Purple, Yellow, Pink lines and the SRT Red Line, but not on the original BTS Sukhumvit and Silom lines, which still require a Rabbit Card or a paper single ticket. Holding both a Rabbit Card and a contactless bank card covers every rail system in the city without queueing at a ticket machine. A 7-Eleven on every block now sells the same AIS or TrueMove tourist SIM the airport kiosks push for $10-15 at a flat $5.70; staff swap the SIM and activate the 30-day data plan in 5 min. The orange-flag commuter Chao Phraya boat from Sathorn to Phra Athit pier still costs $0.45 and stops at Wat Arun and Grand Palace, three times cheaper than the blue-flag tourist boat that runs the identical route 5 min apart with a guide on board. The Or Tor Kor produce market next to Chatuchak (MRT Kamphaeng Phet exit 3) is open daily, not just weekends, and undercuts Chatuchak prices on the same Som Tam, mango sticky rice, and durian by 30-40%.