Firehouse Subs adresses in O'Fallon‚ MO Home Work hours Firehouse Subs hours Missouri O'Fallon AddressPhoneMap104 Laura K Dr O'Fallon(636) 272-5877 You May Like Sonic hoursOutback Steakhouse hoursChick-fil-A hoursWaffle House hoursPenn Station hoursWhite Castle hoursPeople Are Reading