Singapore to Bangkok

Five airlines fly the route nonstop. Singapore Airlines (about six a day), Thai Airways (about five) and Scoot (five or six) land at Suvarnabhumi, the main international airport east of the city. Thai AirAsia (about two a day) and Thai Lion Air (one or two) land at Don Mueang, the older airport in the north that the low-cost airlines use. The flight is 2 hours 25 to 2 hours 35 either way. Jetstar Asia, which some guides still list, shut down on 31 July 2025, and Thai AirAsia paused its Don Mueang flights for part of 2026 over fuel costs, so check the current schedule before you plan around it.

Pick the airport by what you do next. If you're staying in Bangkok, both work. Suvarnabhumi has the Airport Rail Link, ฿45 and 26 minutes to Phaya Thai for the BTS, and Don Mueang has the SRT Red Line, ฿33 to Krung Thep Aphiwat for the MRT, or the ฿30 A1 bus to Mo Chit. If you're flying on within Thailand the same day, land where your next flight leaves. Thai AirAsia, Nok Air and Thai Lion Air run most of their domestic flights from Don Mueang, and the two airports are 60 to 90 minutes apart by road. Our Bangkok airport guide has every option into the city from both.

The Don Mueang flights leave from Changi's Terminal 4 and the Suvarnabhumi flights from T1 and T2, so check the terminal on your booking before you set off.

The low fares on this route are cabin-bag fares, and the cabin bags get weighed. Scoot allows two pieces up to 10 kg in total, a carry-on of up to 54 × 38 × 23 cm and a personal item of up to 40 × 30 × 10 cm, and a checked bag of 20 to 40 kg is bought separately. AirAsia allows two pieces with a combined weight of 7 kg, a 56 × 36 × 23 cm bag and a 40 × 30 × 10 cm personal item, and sells an Xtra Carry-On add-on that raises it to 14 kg. Thai Lion Air's cheapest fares also come with a small cabin allowance only.

If you're carrying more than a weekend bag, add the checked bag when you book, where it's cheaper than at the counter, and compare that total against a Singapore Airlines or Thai Airways fare before you decide which is really the cheaper flight.

Every foreign visitor files the Thailand Digital Arrival Card (TDAC) before landing. It's free at tdac.immigration.go.th, takes five minutes and can be filed up to three days ahead, including on the day. Singaporean, US, UK and most Western passports get 30 days visa-free on arrival. Our visa guide covers who qualifies and the TDAC guide walks through the form.

At Suvarnabhumi, a metered taxi from the official stand on Level 1 costs about ฿400–600 to Sukhumvit or Silom with the ฿50 airport surcharge and tolls, and the Airport Rail Link runs from 05:30 to midnight. After midnight it's a taxi, Grab or a pre-booked car.

There's no through train or through ticket, and the Eastern & Oriental Express no longer runs to Bangkok. What you can do is chain five ordinary trains up the peninsula, each booked separately. It's slower and, with a hotel night, not cheaper than flying. People who do it want to see Malaysia from the window and arrive in Bangkok by sleeper, and many stop for a few nights in Kuala Lumpur or Penang on the way.

Going overland means two arrival cards. Malaysia's MDAC is free at imigresen-online.imi.gov.my and is filed within three days before you arrive, which on this route means before you board the shuttle at Woodlands. Singapore passport holders are exempt. Thailand's TDAC is free at tdac.immigration.go.th and is required at Padang Besar exactly as at the airport.

Entering Thailand by land on the 30-day exemption is limited to twice per calendar year. Singaporean and Malaysian passports are exempt from that cap. A land crossing is not a guaranteed way to reset a stay, and immigration decides each entry.

No bus runs all the way from Singapore to Bangkok. StarMart runs an overnight coach from the Golden Mile Complex to Hat Yai, about 12 hours, from about ฿2,240 on 12Go including the booking fee. From Hat Yai, flights to Bangkok take about 1 hour 20, or you can board No. 46 there at 18:05 for the overnight run north. The same southern-Thailand advisories apply to Hat Yai, so read them before you book. For most people the bus saves nothing over a budget flight to Don Mueang.

The same five airlines fly back, Singapore Airlines, Thai Airways and Scoot from Suvarnabhumi and Thai AirAsia and Thai Lion Air from Don Mueang, in about 2 hours 25 to 2 hours 35. Foreign visitors file Singapore's free SG Arrival Card within three days before landing.

By train, Special Express No. 45 leaves Krung Thep Aphiwat at 16:10 and reaches Padang Besar at 08:05 Thai time (09:05 Malaysian), for about ฿870–960 a berth. You clear Thai exit and Malaysian entry in the station, then take an ETS south to Kuala Lumpur or, on the through trains, all the way to JB Sentral, and the shuttle across to Woodlands is RM5. Malaysia's MDAC applies on this direction too unless you hold a Singapore passport.