Metro ride from Don Mueang Airport to Suvarnabhumi Airport

How to ride the Metro from Don Mueang Airport to Suvarnabhumi Airport.
Cross the overpass that connects Don Mueang Airport to the Metro and ride until Bang Sue Grand Station. The fare will cost 20 THB. Then transfer from the red line to the blue line towards the Petchaburi Station. This will cost 20 THB fare. Then transfer to the Airport Link Line. Just above the Metro Petchaburi Station and take the overpass towards the elevated platform of Makkasan Station towards the Suvarnabhumi Airport. The fare will will cost 35 THB.