Get a Free Upgrade to Large Size Drinks at Subway's Special Campaign!

Subway, the beloved sandwich chain operated by WATAMI FAST CASUAL MANAGEMENT Co., Ltd. based in Ota, Tokyo, is excited to announce a limited-time promotion called the "Drink Size Up Campaign." Starting from September 2, 2026, until September 29, 2026, customers across all Subway locations will have the opportunity to enjoy a complimentary upgrade from a small (S size) cold drink to a large (L size) drink when purchasing any drink set.

Enjoy Your Favorite Drinks in a Larger Size!

During this campaign period, customers who order a S-sized drink set—whether it’s the Potato Drink Set, Cookie Drink Set, or Soup Drink Set—will receive a free upgrade to an L-sized cold drink. The standard S size is 210 ml, while the upgraded L size is 400 ml, offering you a satisfying thirst quencher during this back-to-school season.

What’s more, customers will receive their drinks in an eye-catching "original design paper cup." However, these special cups are available only until stock runs out, so make sure to visit early to grab yours!

A Shift from Summer to Autumn

This year, the campaign is scheduled for September, a month when customers are likely to start feeling the fatigue from summer activities. Just as the seasons shift, so does our need for hydration. Subway aims to encourage patrons to stay refreshed and energized during this transitional period. The inspiration behind this campaign is to promote adequate hydration as customers experience the changing weather and enjoy their favorite sandwiches.

Subway invites everyone to indulge in the cool and refreshing experience of a large drink, perfectly paired with our delicious sandwiches.

Campaign Details

- Duration: September 2 (Wednesday) - September 29 (Tuesday), 2026 (28 days only)
- What’s Included: Purchase any of the Sandwich's Potato Drink S Set, Cookie Drink S Set, or Soup Drink S Set, and get a complimentary upgrade to a large (L) cold drink.
- Participating Locations: All Subway outlets nationwide (excluding a few locations such as those inside leisure facilities).

Available Drinks

Customers can enjoy the promotion on various cold drinks, including:

- Pepsi Cola
- Pepsi Zero
- Ginger Ale
- Melon Soda
- Ice Oolong Tea
- Ice Tea

Fun and Stylish Paper Cups

Drinks will be served in unique and fun "original design paper cups" throughout the campaign. Once the supply of these special cups runs out, drinks will be served in standard cups.

A Look Back at Subway's Legacy

Founded in 1965 in Connecticut, USA, Subway began with Fred DeLuca, just 17 years old, who opened a small sandwich shop to save for college tuition. Little did he know, this small endeavor would grow into a global chain, currently present in over 100 countries.
In Japan, Subway opened its first location on March 25, 1992, in Minato, Tokyo, and continues to spread across the nation. Known for its fresh daily baked bread and quality ingredients, Subway prides itself on allowing customers to customize their sandwiches, with skilled staff, affectionately referred to as sandwich artists, crafting each order with care.

Experience the joy of sipping on a large drink as you enjoy your favorite Subway sandwich this September. Don't miss out on this fantastic opportunity to refresh yourself and celebrate the start of Autumn with Subway's exceptional offer!