Airport Rail Link (BKK ↔ City)

The Airport Rail Link (ARL) connects Suvarnabhumi International Airport (BKK) to central Bangkok. It's the single best way to get between BKK and the city — faster than taxi at rush hour, fixed price, no traffic, runs every 12–15 minutes from ~6 AM to ~midnight. Don Mueang Airport (DMK) does NOT have ARL; that's a separate transit problem (taxi or shuttle to Mo Chit BTS).

The path: - BKK → City: ARL platform is on basement level B at Suvarnabhumi (one level below the bus / taxi level). Follow signs in English. Train terminates at Phaya Thai station, where you transfer to BTS Sukhumvit Line for onward connection (Asok, Sukhumvit, Silom via Siam interchange, etc.). Walk between ARL and BTS at Phaya Thai is 2–3 min, all signed. - City → BKK: reverse. Allow 90 min from city to gate (28 min ARL + 5 min transfer + 30 min check-in/security buffer + 25 min walk to gate at BKK).

Pricing: - City Line (the only line as of 2026): 15–45 baht depending on distance. Suvarnabhumi to Phaya Thai end-to-end is 45 baht (~$1.30 USD). Single-journey tokens at the platform; tap-out at destination.

Stations: - Suvarnabhumi (SVB) — terminus. - Lat Krabang — eastern suburbs. - Ban Thap Chang, Hua Mak, Ramkhamhaeng — eastern Bangkok. - Makkasan — interchange to MRT Blue Line at Phetchaburi (separate building, 10-min walk through covered concourse). - Ratchaprarop — central, residential. - Phaya Thai — terminus, BTS Sukhumvit Line interchange.

When to NOT use ARL: - Late night arrivals (after midnight): ARL closed. Take a metered taxi (~250–400 baht to Sukhumvit + 50–80 baht tolls; insist on the meter — see taxi-scam entry). Grab/Bolt is also fine. - Heavy luggage + family: the BTS connection at Phaya Thai involves stairs, then elevators with queues. A taxi is usually the smarter call for 4+ people with checked bags. - Hotel near MRT Blue Line: consider Makkasan transfer instead of going to Phaya Thai.

Layover playbook (typical 12–18 hour layover at BKK): 1. Land, immigration (~30–60 min), drop bag at left luggage on Level 2 (~150 baht/piece/day). 2. Down to basement B, ARL to Phaya Thai (28 min, 45 baht). 3. Transfer to BTS for your destination neighborhood. 4. Allow 90 min before flight to head back: BTS → ARL → BKK.

Common mistakes: - Trusting Google Maps' transit ETA — it sometimes misses BTS interchanges and underestimates by 15%. - Taking a taxi during 5–8 PM rush hour: 60–90 min vs ARL's 28 min. - Not realizing DMK (Don Mueang) is a different airport — Air Asia, Nok Air, Thai Lion Air fly there. No ARL connection. Plan accordingly.

When the agent should reference this: any layover question, any "how to get to/from airport" question, any first-day arrival routing. Default to ARL unless time/luggage/group-size argues otherwise.