Jack in the Box

Jack in the Box Jack in the Box is a fast food and burger restaurant located on Highway 8, offering a wide selection of menu items ranging from burgers to tacos to egg rolls that are sure to satisfy any craving. Customers can also enjoy special offers available through the Jack app or online, such as their Pineapple Express family combo or Mega Munchies Box with free delivery for a limited time.

Recent social media posts

Cold coffee. Hot candidate. ☕
09/25/2026

Cold coffee. Hot candidate. ☕

The Krusty Burger of Terror Combo has been unleashed on the Jack App. Your cravings can run, but they can't hide. 🤡🔪Watc...
09/23/2026

The Krusty Burger of Terror Combo has been unleashed on the Jack App. Your cravings can run, but they can't hide. 🤡🔪Watch SEP 27 on FOX, stream on Hulu and Disney+.

09/21/2026

D'oh-n't turn the lights on just yet. 🍩
Collect all six glow in the dark cups with the Munchie Meal of Horror. Watch SEP 27 on FOX, stream on Hulu and Disney+.

09/19/2026

It’s Jack in the Box—not Krusty in the Box—for the Munchie Meal of Horror. Watch SEP 27 on FOX, stream on Hulu and Disney+.

Out of cups? 👀 Don’t worry, Jack’s got you.If you purchase a Munchie Meal of Horror while your Jack is out of cups, you’...
09/18/2026

Out of cups? 👀 Don’t worry, Jack’s got you.
If you purchase a Munchie Meal of Horror while your Jack is out of cups, you’ll get a voucher for the cup you purchased — plus 2 free tacos, on me. 🌮🌮

Watch Sundays on FOX, stream on Hulu and Disney+.

Some cravings are normal. Some belong in the Treehouse of Horror. 👻 Swipe to discover…Your cursed craving awaits. 🌙 Wat...
09/16/2026

Some cravings are normal. Some belong in the Treehouse of Horror. 👻 Swipe to discover…Your cursed craving awaits. 🌙 Watch SEP 27 on FOX, stream on Hulu and Disney+.

Burger Week is here, and we’ve got three reasons to celebrate!🍔🍔 All week long: $5.99 Sourdough Jack® (valid 1x)🍔 Sept. ...
09/14/2026

Burger Week is here, and we’ve got three reasons to celebrate!🍔

🍔 All week long: $5.99 Sourdough Jack® (valid 1x)
🍔 Sept. 15: Buy one Double Jack®, get one 50% off for National Double Cheeseburger Day (valid 1x)
🍔 Sept. 18: FREE Jr. Cheeseburger with a $1+ order for National Cheeseburger Day (valid 1x)

Available exclusively in the Jack App.

👽 Kang and Kodos said delivery from another dimension couldn't be done.We did it anyway. The Munchie Meal of Horror:🍔 Do...
09/13/2026

👽 Kang and Kodos said delivery from another dimension couldn't be done.
We did it anyway.

The Munchie Meal of Horror:
🍔 Double Krusty Burger of Terror or 🥪 Double Chicken Sandwich of Terror🌮 2 Tacos, 🌀 Curly Fries, 🥤 Drink + 🥤One of six collectible glow-in-the-dark cups. Available now 👻🌙🍔

Watch Sundays on FOX, stream on Hulu and Disney+.

If anything happens to me, it was probably this guy... The Simpsons Treehouse of Horror x Jack in the Box menu availabl...
09/10/2026

If anything happens to me, it was probably this guy... The Simpsons Treehouse of Horror x Jack in the Box menu available now. Watch Sundays on FOX, stream on Hulu and Disney+.

09/09/2026

i have to half it so i can have 🍔

09/07/2026

Kiss goodbye to mom paying for every meal 😔💋

Luckily that's where I come in to help with:

⚡ $1 Breakfast Jack® w/ order of a Red Bull® Can or Infusion
⚡ $1 Red Bull® w/ order of a Breakfast Croissant
⚡ Free regular-size fries (Curly or French) or dessert w/ order of a Red Bull Infusion

Offers valid 1x per week (Mon.-Sun.) for new and existing Jack Pack Rewards members. Available only in the Jack App. Dessert excludes shakes.

09/05/2026

Be honest: what sound did you make in your head?🥤

09/03/2026

$500 isn't the only thing I'm giving away 👀

For any students surviving on a budget, I've got you:

⚡ $1 Breakfast Jack® w/ order of a Red Bull® Can or Infusion
⚡ $1 Red Bull® w/ order of a Breakfast Croissant
⚡ Free regular-size fries (Curly or French) or dessert w/ order of a Red Bull Infusion

Offers valid 1x per week (Mon.-Sun.) for new and existing Jack Pack Rewards members. Available only in the Jack App. Dessert excludes shakes.

the fortune doesn't lie 🥠 get 2 tacos for $.75, no purchase requirement, in-app only for one day only
09/01/2026

the fortune doesn't lie 🥠 get 2 tacos for $.75, no purchase requirement, in-app only for one day only

09/01/2026

Donate $1 to No Kid Hungry at Jack in the Box and get a free small curly fry on your next visit.

Get Free 2 Tacos w/ $1 minimum order1x only on 8/31 only on the Jack App
08/31/2026

Get Free 2 Tacos w/ $1 minimum order
1x only on 8/31 only on the Jack App

08/28/2026

nothing better than tacos unless it's more tacos. 🌮

08/27/2026

Did you catch everything revealed today? If not, Jack delivers.

08/26/2026

The universe gave you a week-long head start. 🛸

Don't waste it.

Cosmic Cheeseburgers are only at my 1220 Centinela Ave, Inglewood, CA location through September 2. 🌌🍔

08/24/2026

Early class. Low battery. We got you. ⚡

Pair any Red Bull Can or Infusion with a Breakfast Jack for just $1 in the Jack App.

Valid 1x per week.

08/21/2026

friends = me, myself, and I

08/20/2026

What's more whimsical than my new Cosmic Cheeseburger? 🛸🪐🌟 Available for 2 weeks only at 📍1220 Centinela Ave, Inglewood, CA 90302

08/19/2026

body: resurrected

Click here for great offers and stuff!
12/13/2018

Click here for great offers and stuff!

Burgers. Breakfast. Tacos and more. All of Jack’s favorite things in one place.

Address

14039 Highway 8 Business
El Cajon, CA
92021

To get to the fast food restaurant and burger restaurant located in Highway 8 in El Cajon, you can take the bus route that passes through Highway 8. The nearest bus stop is just a few minutes walk from the restaurant. Alternatively, you can drive to the location by taking Highway 8 and exiting at the specified exit. There is ample parking space available at the restaurant for customers who choose to drive.

Opening Hours

Monday 4:30am - 3:30am
Tuesday 4:30am - 3:30am
Wednesday 4:30am - 3:30am
Thursday 4:30am - 3:30am
Friday 4:30am - 3:30am
Saturday 4:30am - 3:30am
Sunday 4:30am - 3:30am

Telephone

+16199381940

Website

Alerts

Be the first to know and let us send you an email when Jack in the Box posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category

What people say

Fast food restaurants are a go-to for those who want quick and satisfying meals. And when it comes to fast food, Jack in the Box on Highway 8 in El Cajon is definitely a top contender. With a menu that caters to all cravings, from burgers to tacos to egg rolls, there's something for everyone at Jack in the Box.

Customers have been raving about their experiences on social media, with one user saying that their egg rolls tasted as good as they looked. Another couldn't decide what to get, so they got it all! And who can blame them? With such a diverse menu, it's hard not to want to try everything.

Jack in the Box also offers great deals and promotions through their app and online ordering system. Customers can celebrate their birthdays with two free tacos with a $1 purchase, or get 2 for .99 tacos when they order through the app or online.

And let's not forget about their Pineapple Express family, which includes a Shake, Red Bull Infusion, and Chicken Sandwich. For a limited time, customers can get a large Pineapple Express Shake for only $4.20 through the app or online.

Overall, Jack in the Box on Highway 8 in El Cajon is definitely worth checking out if you're looking for delicious and affordable fast food options.