The Mass Rapid Transit (MRT) station at Singapore Changi Airport (located in the basement of Terminal 2 and Terminal 3) generally opens its doors at 5:26 AM from Monday to Saturday and at 5:54 AM on Sundays and Public Holidays. For travelers arriving on early morning flights, these trains provide a very affordable and efficient connection to the city center via the East-West (Green) Line. It is important to note that the airport station is a "branch" line, so you must usually transfer at Tanah Merah station to continue toward the central business district or Orchard Road. The last train departs the airport at approximately 11:18 PM, so if you arrive on a late-night flight, you may need to rely on a taxi or a rideshare service like Grab. In 2026, the MRT remains the preferred choice for budget-conscious travelers, costing only about $2.00 to reach most parts of the island. You can use your contactless Visa or Mastercard (SimplyGo) to tap through the gates, eliminating the need to buy a physical transit card. If you are staying at a terminal that doesn't have a station (like Terminal 1 or 4), you can use the free Skytrain or shuttle bus to reach the MRT hub in T2/T3.