About
Sandwich RestaurantFast Food RestaurantRestaurantTake Out RestaurantCaterer
Your local Keystone Subway® Restaurant at 804 Hwy 16 A brings bold new flavors and classic favorites to guests every day. Enjoy our famous Footlongs, 6" sandwiches, wraps, and salads, ordered quickly in the app or online, through convenient delivery, in-restaurant dining, or curbside pickup. We’re proud to offer a fresh alternative to typical fast food with fresh-cut veggies, tasty proteins, fresh-baked bread, and delicious cookies. We’re also here for your catering needs. All Subway® Restaurants are independently owned and operated by business owners who employ talented Sandwich Artists™.
Details
- Dine-inAvailable
- Drive-throughNot available
Location
Hours
Reviews
4.2
38 reviews
5 stars
27
4 stars
1
3 stars
4
2 stars
2
1 star
4
- KPKrissy A. PetersonOct 30, 20255.0My husband and I stopped at this location for lunch a few months ago. The food was phenomenal and the staff members were very nice. Keep up the great work.
- A3April 380Aug 12, 20255.0We got there just a few minutes before they closed. Maps said they closed at 10, but they closed as soon as they were done making our order at 9:05. Staff was very kind, especially considering they were ready to close.
- KRKing ReedAug 8, 20255.0Everything was awesome, the servers were nice, everyone had a good time :D
- GMGregor MarantaJun 29, 20255.0Sub with a view
- ERElizabeth ReeseApr 25, 20221.0Says online it is open until 10, but pulled up at 9:30 pm and sign says it closes at 7 pm. Very frustrating.
Frequently Asked Questions About Subway
Where is the Subway restaurant located in Keystone?
The Subway restaurant is located at 804 Hwy 16 A, Unit #2, Keystone, SD 57751, near Mt. Rushmore.
What are the operating hours of the Subway in Keystone?
The Subway in Keystone is open daily from 7:00 AM to 11:00 PM.
Is the Keystone Subway restaurant open on holidays?
The Subway restaurant is closed November 6 to November 12, 2025, and will reopen on December 6, 2025.
Does the Subway in Keystone offer catering services?
Yes, the Subway restaurant offers catering services.
Can I order Subway for curbside pickup at this location?
Yes, curbside pickup is available at this Subway location.
What meal times does the Keystone Subway serve?
This Subway location serves breakfast, lunch, and dinner.
Where can I find the menu for Keystone Subway?
The menu can be found online at https://www.subway.com/en-US/MenuNutrition/Menu.
What nearby attractions can I visit before or after eating at Subway Keystone?
You can visit the Mount Rushmore Monument, which is near the Subway location in Keystone.
Are there any coffee shops near the Keystone Subway?
Yes, Holy Terror Coffee & Fudge is a nearby coffee shop and cafe close to the Subway location.
What other restaurants are near the Keystone Subway?
Nearby restaurants include Halleys West, Eno's Pizza, and Dairy Queen.