Dunkin' Donuts adresses in O'Fallon‚ MO Home Work hours Dunkin' Donuts hours Missouri O'Fallon AddressPhoneMap1220 Highway O'Fallon(636) 385-6688 You May Like Starbucks hoursHardee's hoursWaffle House hoursOrange Leaf hoursLittle Caesars hoursFirehouse Subs hoursPeople Are Reading