Diet Pepsi Price at Subway (2026)
A Diet Pepsi costs $3.89 at Subway in United States (updated September 2026).
Subway's Diet Pepsi® is priced at $3.89 in the United States right now (September 2026). That's about 0% above the typical Subway drink item — the 6th-most-expensive of 17 we track. It's available at around 1 Subway locations across the United States. Prices are sourced from delivery platforms and refreshed regularly. Browse the latest Subway drink prices and find the cheapest pick on MenuPriceToday.
How this compares in Drinks
17 items tracked| This item | $3.89 |
| Drinks median | $3.89 |
| Cheapest — Honest Kids® Super Fruit Punch | $2.12 |
| Most expensive — Celsius® Sparkling Orange | $4.89 |
| vs Drinks median | 0% |
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