Diet Coke Price at Burger King (2026) — Illinois

A Diet Coke costs $3.49 at Burger King in Illinois, United States (updated September 2026).

Wondering how much a Diet Coke costs at Burger King in the United States? The current price is $3.49. That's about 5% below the typical Burger King coffee item — the 9th-most-expensive of 33 we track. It's available at around 897 Burger King locations across the United States. Prices are sourced from delivery platforms and refreshed regularly. Set a free alert to know the moment this price changes on MenuPriceToday.

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