A&W Restaurant adresses in O'Fallon‚ MO Home Work hours A&W Restaurant hours Missouri O'Fallon AddressPhoneMap2500 US Highway 40 O'Fallon(636) 561-6500 You May Like Sonic hoursTexas Roadhouse hoursChipotle Mexican Grill hoursHardee's hoursJimmy John's hoursBuffalo Wild Wings hoursPeople Are Reading