06/02/2026
taco tuesday you know the drill 🌮 get 2 tacos for $.75, no purchase requirement, in-app only for one day only.
Jack in the Box
- Home
- Ontario
- N Mountain Avenue
- Jack in the Box
Jack in the Box is a fast food and burger restaurant located on N Mountain Avenue. This establishment prides itself on providing an extensive menu of various items, including burgers, tacos, and egg rolls, satisfying any craving out of the box. Occasionally offering limited-time promotions like Pineapple Express-themed drinkables and edibles or Mega Munchies Box with free delivery currently available exclusively through their app or website.
Recent social media posts
Address
990 N Mountain Avenue
Ontario, CA
91762
Located on N Mountain Avenue in Ontario, the fast food restaurant and burger joint can be accessed easily by both public transport and private vehicle. If you're commuting via public transport, take Bus Route #61 or #81 and get off at Euclid @ 4th. From there, walk south towards North side of Pine Ave until you reach the destination.
If you're driving, take I-10 E to exit 53 towards CA-83/ Euclid Ave. Keep right at the fork to continue towards S Euclid Ave and turn right onto S Euclid Ave. Drive for about a mile before turning left onto W G St then turn right onto N Grove Ave. Finally, turn left onto E Holt Blvd and then turn right onto N Mountain Ave - your destination should be on your right.
There is parking available in the lot adjacent to the restaurant as well as ample street parking nearby where permitted.
Telephone
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.
Share
Category
What people say
Fast food restaurants are a go-to for many people who want quick and satisfying meals. Jack in the Box, located on N Mountain Avenue, Ontario, is one such restaurant that has been catering to customers' cravings for years. They offer a wide range of options from burgers to tacos to egg rolls, making it an ideal spot for those who love variety.
Customers have taken to social media to express their love for Jack in the Box. One customer couldn't decide what to get and ended up getting everything! Another customer shared a picture of the jar they use to save money for more Jack in the Box visits. The restaurant's breakfast options also seem to be a hit with customers debating whether they should have dessert for breakfast or breakfast for dessert.
Jack in the Box also offers great deals and promotions. For instance, customers can celebrate their birthdays with two free tacos with a $1 purchase on the app/online. Additionally, their 2-for-.99 tacos deal is hard to resist, especially when ordering through their app or online.
The restaurant is always innovating and introducing new items like their Jack Wraps which are now available at select locations. Their Pineapple Express family includes a Shake, Red Bull Infusion, and Chicken Sandwich which was available at a discounted price of $4.20 in-app or online on 4/20.
Overall, Jack in the Box is an excellent fast food restaurant that caters to all kinds of cravings and offers great deals and promotions.