My flight arrives at BKK and by the time I get through customs, it'll be about 11pm. Are there likely to be anywhere open to change money into Baht at the airport to pay for a taxi? Cheers.
TLDR : Answer Summary
Upon arriving at Suvarnabhumi Airport (BKK) near midnight, travelers may find limited options for currency exchange. While there are exchange counters open before immigration and after customs, many competitive booths, such as SuperRich, close at 11:30 PM. ATMs are a viable alternative, but travelers should notify their banks about using cards abroad and avoid accepting currency conversion offers at ATMs to get better rates. It's often recommended to exchange a small amount for immediate needs and seek better rates in the city the next day.