St. Ambrose Cathedral is 1 block north, and 1 block east of the Des Moines Marriott Downtown.
The drive to the hotel from the airport (KDSM) is approximately 5 miles, and takes roughly 10 minutes. If staying at the Des Moines Marriott Downtown there is airport shuttle transportation available every 30 minutes Monday - Friday and every hour Saturday - Sunday.
Guests are asked to arrive 15-30 minutes before the ceremony is scheduled to start. Grandparents will be seated 5 minutes before the ceremony.