This guide covers Sourdough Jack with prices and calories checked in November 2026.
The Jack in the Box Sourdough Jack costs about $6.99–$7.49, or about $11.49 as a combo. It’s a beef patty with bacon, Swiss cheese, tomato and mayo on toasted sourdough bread, about 690 calories.
Prices last checked: November 2026 · Before tax · Prices vary by location · By Richard · How we check prices
Price and calories
| Item | Size | Price | Calories |
|---|---|---|---|
| Sourdough Jack | 1 burger | $6.99–$7.49 | 690 |
| Sourdough Jack Combo | Med fries + drink | $11.49 |
What's on it
Beef patty, bacon, Swiss-style cheese, tomato, ketchup and mayo on grilled sourdough. No bun — that’s what makes it different.
Sourdough Jack vs Ultimate Cheeseburger
The Ultimate has two patties and 840 calories for a similar price. Choose the Sourdough Jack for flavor, the Ultimate for size.
Sourdough Jack nutrition
| Item | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Sourdough Jack | 690 | 33 g | 39 g | 44 g |
| Jumbo Jack | 520 | 23 g | 32 g | 33 g |
| Ultimate Cheeseburger | 840 | 47 g | 31 g | 59 g |
At 33 g of protein, the Sourdough Jack gives you more protein per dollar than the Jumbo Jack, thanks to the bacon and cheese.
Why fans love it
The bread is the difference: two slices of sourdough grilled with butter until crisp. It holds up better than a soft bun, so the burger stays tidy in the car. The Swiss-style cheese and bacon make it saltier and richer than the classic Jumbo Jack.
Sourdough Jack combo math
| Option | Approx. price |
|---|---|
| Sourdough Jack alone | $6.99–$7.49 |
| Sourdough Jack Combo | $11.49 |
| Sourdough Jack + 2 tacos | $8.78–$9.48 |
The combo adds about $4–$4.50. Pairing the burger with two tacos instead costs less and gives more food, but no drink.
Related sourdough items
The same bread is used for the Sourdough Breakfast Sandwich (810 calories) and the Sourdough Grilled Chicken Club.
How to order
- Open the Jack app (or jackinthebox.com) and choose your nearest restaurant — prices load for that store.
- Find Sourdough Jack in the menu and tap Customize to add or remove toppings.
- Check the Offers tab before checkout; app deals often beat the menu-board price.
- Pick up at the counter or drive-thru to avoid delivery markups of 10–30%.
Sourdough Jack nutrition
The Sourdough Jack has about 690 calories, 33 g of protein, 39 g of carbs and 44 g of fat. That makes it bigger than a Jumbo Jack (520 calories) but lighter than the Ultimate Cheeseburger (840 calories).
- Make it lighter: remove the mayo to cut calories.
- Make it spicier: add jalapeños.
- Make it a meal: the Sourdough Jack Combo is about $11.49.
Sourdough Jack vs Sourdough Breakfast Sandwich
Both use toasted sourdough bread. The breakfast version swaps the beef patty for egg, ham and bacon, costs about $5.29 and comes in around 810 calories. If you want the sourdough taste for less money, the breakfast sandwich is the cheaper option, and it’s served all day at most stores.
Sourdough Jack: FAQs
How much is a Sourdough Jack?
About $6.99–$7.49; about $11.49 as a combo.
Is the Sourdough Jack still on the menu?
Yes, it is a permanent menu item in 2026.
How many calories are in a Sourdough Jack?
About 690.
What cheese is on the Sourdough Jack?
Swiss-style cheese.
Is there a double Sourdough Jack?
Not on the regular menu, but you can add a patty in the app.
Related guides
Official source: Jack in the Box menu on jackinthebox.com. Prices on this page are independent averages and may differ from your restaurant.
Jack in the Box Prices is an independent guide and is not affiliated with, endorsed by, or sponsored by Jack in the Box Inc. Prices are averages and can differ at your local restaurant, in the Jack app, and on delivery apps.