Bangkok has two airports, they are nowhere near each other, and the right way into the city is different from each one. Getting this wrong at the end of a long flight is how a lot of trips start badly.
First, know which one you are landing at.
Suvarnabhumi (BKK) is the main international airport, east of the city, about 30km out. Don Mueang (DMK) is the older airport to the north, about 25km out, and it is where most low-cost carriers fly — AirAsia, Nok Air, Thai Lion. If you booked a cheap regional flight, check your ticket, because people do turn up at the wrong one.
From Suvarnabhumi (BKK)
Airport Rail Link — fastest when traffic is bad
The Airport Rail Link runs from the basement of the terminal to Phaya Thai, where it connects to the BTS Skytrain, and to Makkasan, which connects to the MRT. The journey takes roughly 30 minutes and costs a fraction of a taxi.
Take it if: you are travelling light, your hotel is near a BTS or MRT station, and it is daytime.
Know that: it stops running late at night, and it is a normal commuter train — with two large suitcases in rush hour it is genuinely unpleasant. It also does not go to the Old City, so if you are staying near the Grand Palace you will be changing onto the MRT and then still walking.
Metered taxi — the sensible default
The official taxi rank is on the ground floor of the terminal, one level below arrivals. You take a ticket from the machine, get assigned a car, and the meter runs.
Expect the fare plus a 50 baht airport surcharge plus the motorway tolls, which you pay in cash as you go. Budget roughly 45 minutes to an hour to central Bangkok, longer in rush hour.
The important part: insist on the meter. If the driver quotes a flat price instead of using it, get out and take the next car. This is the single most common way visitors are overcharged in Bangkok, and it starts before you have left the airport. More of these in Bangkok scams to avoid.
The arrivals-hall trap
As you come out of customs into the arrivals hall, you will be approached by people offering taxis and private cars. These are not the official taxi rank. The official rank is downstairs, outside, and nobody there will approach you.
Anyone who walks up to you inside the terminal offering a ride is charging several times the metered fare. This is not dangerous, it is just expensive, and it is extremely effective on tired people who have just landed.
Grab — fixed price, no negotiation
Grab is the ride-hailing app used across Southeast Asia, and it works at both airports. The price is fixed before you book, which removes the entire meter argument, and you can pay by card in the app.
It costs more than a metered taxi and less than anything offered to you in the arrivals hall. For a first arrival, especially late at night or with children, the certainty is usually worth it. The Grab versus taxi comparison goes into when each one wins.
Private transfer — when it is worth it
Pre-booked private transfer costs the most, and there are two situations where it earns the money: arriving after midnight, and arriving with small children and a lot of luggage. Otherwise it is a convenience purchase.
From Don Mueang (DMK)
Don Mueang has no rail link to the city centre in the way Suvarnabhumi does. The realistic options are:
- Metered taxi from the official rank, same rules as above — meter, surcharge, tolls. Roughly 30 to 60 minutes depending entirely on traffic.
- Grab, same as above, and often the easiest choice here.
- The A1 and A2 buses to Mo Chit, where you can pick up the BTS and MRT. Cheap, and fine if you are travelling light.
- The SRT Red Line train from Don Mueang station to Bang Sue Grand Station, which connects to the MRT. It is a short walk from the terminal and a genuinely good option that many visitors do not know exists.
Connecting between the two airports
If you have an international arrival at Suvarnabhumi and an onward low-cost flight from Don Mueang, there is a free shuttle bus between the two for passengers with a connecting ticket, and public buses otherwise. Allow far more time than the distance suggests — it crosses the whole city.
Do not book a tight connection between BKK and DMK. Three hours is not generous, it is sensible.
What this costs, roughly
Prices move, so treat these as ratios rather than quotes: the Airport Rail Link is the cheapest by a wide margin, a metered taxi is several times that, Grab is somewhat more than the taxi, a private transfer is roughly double the taxi, and anyone approaching you in the arrivals hall is asking for several times the taxi.
If you are working out the wider trip budget, what a trip to Bangkok actually costs puts the transfer in context — it is a small line in a cheap city, and it is not worth a bad first hour.
If you are only passing through
A long layover at Suvarnabhumi is enough time to see something real rather than sit in the terminal, but only if you plan the return leg properly. The Bangkok layover guide covers how much time you actually need.
Arriving with someone who knows the city
If you would rather not do any of this on your own at the end of a fourteen-hour flight, a Bangkok Local Friend can meet you and get you into town — which mostly means somebody who speaks Thai handling the bit where you are least equipped to handle it.
Next: where to stay in Bangkok and first time in Bangkok.
Frequently Asked Questions
What is the cheapest way from Bangkok airport to the city?
The Airport Rail Link from Suvarnabhumi, by a wide margin. It runs to Phaya Thai and Makkasan in about 30 minutes and connects to the BTS and MRT. It stops running late at night and is a commuter train, so it is less pleasant with large luggage.How long does it take from Suvarnabhumi to central Bangkok?
About 30 minutes on the Airport Rail Link, or 45 minutes to over an hour by road depending on traffic. Bangkok traffic is genuinely unpredictable, so allow more than the distance suggests when heading back for a flight.Should I use Grab or a taxi from Bangkok airport?
A metered taxi is cheaper; Grab fixes the price before you book and lets you pay by card, which removes any argument about the meter. For a first arrival, late at night, or with children, the certainty is usually worth the difference.Are taxi drivers at Bangkok airport a scam?
The official metered taxis from the rank are fine. The problem is people who approach you inside the arrivals hall offering rides — they are not the official rank and charge several times the fare. The real rank is downstairs and outside, and nobody there approaches you.Is Don Mueang or Suvarnabhumi closer to Bangkok?
Don Mueang is slightly closer in distance, about 25km north versus 30km east, but travel time is similar because it depends almost entirely on traffic. They are on opposite sides of the city from each other.How do I get between Bangkok's two airports?
There is a free shuttle bus for passengers holding a connecting ticket, plus public buses and taxis. It crosses the entire city, so allow at least three hours between flights — a short connection between BKK and DMK is not a safe booking.Is there a train from Don Mueang airport?
Yes. The SRT Red Line runs from Don Mueang station, a short walk from the terminal, to Bang Sue Grand Station, where you can change onto the MRT. Many visitors do not realise it exists and default to a taxi.
