How far is each airport from central Bangkok?
Suvarnabhumi (BKK): ~30km southeast, 45-90 minutes by taxi depending on traffic, 30-45 minutes by Airport Link. Don Mueang (DMK): ~25km north, 30-60 minutes by taxi, 40-50 minutes by SRT Red Line + transit. Don Mueang is slightly closer to central Bangkok in optimal traffic but the SRT-to-BTS transfer is less seamless than Suvarnabhumi's direct Airport Link. For laundry pickup logistics from central hotels, both airports are workable; Don Mueang has a slight edge for early-morning departures.