From the airport
Suvarnabhumi to the city is the Airport Rail Link to Phaya Thai, then the MRT. Forty minutes, and it does not care about traffic.
A Grab from the airport is 45 minutes at a good hour and an hour and a half at a bad one. The fare is fixed when you book, which is the real reason to use the app rather than the rank.
Getting to the venue
MRT Blue Line to Queen Sirikit National Convention Centre. The station exit opens into the building.
If you are staying on Sukhumvit, the MRT is almost always faster than a car for the same trip, and it is air conditioned.
Between side events
The evening circuit runs through Sukhumvit, Thonglor and Sathorn. Two events in one night can be half an hour apart in traffic and ten minutes apart on the MRT.
A motorbike taxi is the fastest thing in Bangkok and the least comfortable. Grab books them too.
Land the day before. The side events start on the Friday, and arriving into them rather than after them is most of the value of the trip.
