Diet Coke Price at Chick-fil-A (2026)
A Diet Coke costs $3.09 at Chick-fil-A in United States (updated August 2026).
A Diet Coke® at Chick-fil-A costs $3.09 in the United States as of August 2026. That's about 27% below the average Chick-fil-A beverage item — the 15th-cheapest of 35 we track. It's available at around 200 Chick-fil-A locations across the United States. Prices are sourced from delivery platforms and refreshed regularly. Check the full Chick-fil-A menu or compare beverage prices on MenuPriceToday.
How this compares in Beverages
35 items tracked| This item | $3.09 |
| Beverages median | $3.09 |
| Cheapest — Honest Kids® Apple Juice | $2.55 |
| Most expensive — Seasonal Gallon Beverages | $19.79 |
| vs Beverages median | 0% |
Compare Chick Fil A prices across 20+ countries — Fast-Food Price Index →