Nearest: Ronald Reagan Washington National Airport (DCA).
This is preferred because it links up with metro; DCA (yellow line) headed towards PI Gallery China Town (red line). Or DCA (blue line) to Metro Center (red line). Once you’re on the red line, ride it towards Rockville.
Other less convenient airports:
Dulles International Airport
Baltimore/Washington International Thurgood Marshall Airport (BWI)
Any hotel recommendations?
While we did not reserve any hotels specifically for wedding, we do suggest you look into hotels around Rio Washingtonian. There are multiple Marriotts located at this place and plenty restaurants nearby. It’s about a 40min drive from there to the Friday Welcome dinner, and a 10min drive to Saturday Wedding Day at the Sikh Temple.