Jack in the Box

(on washington)
Fast Food in Thornton, CO
Fast Food


6:00AM - 10:00PM
6:00AM - 10:00PM
6:00AM - 10:00PM
6:00AM - 10:00PM
6:00AM - 12:00AM
6:00AM - 12:00AM
6:00AM - 10:00PM


Burgers & More
Chicken & More
Jack's Value
Kid's Combos
Something Different
Snacks & Sides
Jack's Munchie Meals
Breakfast Served All Day


9703 Washington St
Thornton, CO


The health and safety of our guests and team members remain our top priority. All our locations are following new and updated local and state mandates as we navigate this next phase and are taking great precaution to reopen our dining rooms on a case-by-case basis. You may notice that some of our dining rooms will remain closed as our restaurant owners are evaluating all safety considerations before fully reopening. Please visit our FAQ page for more information. Let’s face it: you want what you want, when you want it. Jack in the Box serves the whole menu all day long! Want breakfast in the evening? We got it. Craving juicy burgers made with signature beef? Jack has them too. Yearning for a delicious chicken sandwich? Done. Stop by your nearby Jack in the Box to indulge in your favorite foods. Or, with delivery options available, you don’t even have to leave your couch!


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Latest Jack in the Box Reviews (Average Rating: 2)

based on 36 review(s)

I come here for the churros, which are fantastic! I haven't even tried anything else, but my husband loves the tacos. The staff is friendly and the service...

Sarah V. January 12, 2014 via Yelp

Horrible wait times half of order was incorrect got tacos instead of fries. Two of the four tenders were old/ burnt and inedible. Take your hunger elsewhere

K H. May 18, 2022 via Yelp

Check your food before you leave. Not just to make sure you have everything, but to make sure it's not expired either. Got a cheesecake that expired...

Kayla R. May 19, 2021 via Yelp


A Patty Melt is like if a grilled cheese was 1000x more delicious
Jack O' The Box.
The mid-afternoon pre-dinner dessert break
Truly the one single thing on earth better than Chicken Strips is Spicy Chicken Strips
Spend $0 wisely. Get a $0 delivery fee on Uber Eats today. Your Jack in the Box nuggets will thank you
The "What Should I eat at Jack" cheat sheet.
Always down to third wheel your dates, folks.
Let's change the St. Paddy's Day rule to pinching fries.
Just a reminder that the Triple Bonus Jack loves you 3x more than any other sandwich, and if you upgrade to the quad, it will love you even more. 📸 : @thecherchlife
You know what to do 👇
Being extra because we can. #VarietyFlex
We’re not fishing for compliments, but the Deluxe Fish Sandwich is back.


Company name
Jack in the Box
Fast Food


  • What is the phone number for Jack in the Box in Thornton CO?
    You can reach them at: 303-920-1214. It’s best to call Jack in the Box during business hours.
  • What is the address for Jack in the Box on washington in Thornton?
    Jack in the Box is located at this address: 9703 Washington St Thornton, CO 80229.
  • What are Jack in the Box(Thornton, CO) store hours?
    Jack in the Box store hours are as follows: Mon-Thu: 6:00AM - 10:00PM, Fri-Sat: 6:00AM - 12:00AM, Sun: 6:00AM - 10:00PM.
  • Does Jack in the Box(Thornton, CO) have a menu with prices?
    Yes, Jack in the Box has online menu! Here you can see full menu with latest prices.