Jimmy John's $1 Sandwich Day on April 21

Freaky, fast and only a buck.

Fans of Jimmy John’s can chow down on a sub for only $1 from 11 a.m. to 3 p.m., Thursday, April 21.

The company says the discounted price is a way of saying thanks to customers.

The promotion is limited to the restaurant's No. 1-6 sandwiches, BLT and slims. All subs will come on the store’s usual french bread, but lettuce wraps will be available at no additional charge, according to Jimmy John’s.

A list of participating stores is available online, but here are some Maryland locations that are participating.

• 7410 A Baltimore Ave. in College Park
• Old Dobbin Road in Columbia
• 139 Main St. in Annapolis
• 1901 Towne Centre Blvd. Ste. 133 in Annapolis
• 4710 Bethesda Ave. in Bethesda
• 11416 Rockville Pike Ste. B in Rockville
• 1723 Whetstone Way in Baltimore
• 10128 York Road Ste. A in Cockeysville
• 537 Ritchie Hwy. Ste. 1E in Severna Park
• 7075 Minstrel Way Ste. 200 in Columbia
• 8710 Cameron St. in Silver Spring
• 3454 A Emmorton Rd in Abingdon
• 9339 Baltimore National Pike Ste. 1 in Ellicott City
• 523 Quince Orchard Rd. in Gaithersburg
• 8827 Centre Park Dr. in Columbia
• 696 Bel Air Rd Ste. J10 in Bel Air
• 5557 Baltimore Ave Ste. 100 in Hyattsville
• 3735 Boston St. in Baltimore
• 2645 Annapolis Rd Ste. A in Hanover
• 15411 Excelsior Dr. in Bowie
• 1308 Fleet St. in Baltimore
• 6400 Ridge Rd. Ste. B1 in Sykesville
• 14619 Baltimore Ave. in Laurel

While you can only order one sub at a time, you are free to go through the line as many times as you want.

The deal is only valid to those who place their order in the store. Those who call ahead or use a drive-thru will be charged regular price.

“The promotion is for in shop only. We want to see your smiling faces. Come see our speed for yourself and stop by for the fun,” Jimmy John’s said on its website.

For more information, visit the restaurant’s FAQ page regarding the promotion.