100,000 miles service requirements

What does the display on the dashboard say? There should be a latter (A or B) followed by some numbers (1-5) Go here to learn more: https://repairpal.com/maintenance-minder Go here for an estimate: https://repairpal.com/estimator/honda/accord

I would replace spark plugs and wires if not already done. Also service the cooling system(flush and refill). Replace air and fuel filters. inspect drive belt and check all fluids.