Jack in the Box has always been the place for those who live outside the box. Where you can try new things and order what you want when you want it, while always getting it fast, hot and fresh. If you love the classics, burgers make up the core of our menu with the signature Jumbo Jack®, Ultimate Cheeseburger, the Buttery Jack™ and the Sourdough Jack® on our trademark toasted sourdough. If you seek good value, we offer Jack’s Deals with our famous two tacos, chicken nuggets, Jr. Bacon Cheeseburger and more. We don’t dictate cravings. We serve our full menu, including breakfast, all day every day. Want a burger for breakfast or breakfast sandwich for dinner? You got it.
Burgers, chicken, tacos & breakfast items fill out the menu at this fast-food chain. Based on 826 reviews, the restaurant has received a rating of 3.9 stars. Price $
✔️ Dine-in ✔️ Drive-through ✔️ No-contact delivery

Address:
101 Bourbeuse River Access, Union, MO 63084
Phone: (636) 584-8497
Website:
Hours
| Monday
(Labor Day)
|
Open 24 hours
Hours might differ
|
| Tuesday |
Open 24 hours |
| Wednesday |
Open 24 hours |
| Thursday |
Open 24 hours |
| Friday |
Open 24 hours |
| Saturday |
Open 24 hours |
| Sunday |
Open 24 hours |
Menu
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Photo Gallery
Reviews
Jim Noack
Honestly, I used to love Jack n the box, but the last few times I’ve been here the foods gone down hill, and the prices have gone up hill. I ordered my favorite burger, the ultimate cheese burger. It was less than average and smaller than it used to be. I also, ordered a fried chicken wrap that was a special. I think it cost $3. It was a small chicken soft taco with one very small chicken tender and not much of anything else. Overall, what I paid for was a rip off. It was more like a snack. I’ve been avoiding going here because like this experience, the last 3 or 4 times I’ve been here I’ve had a very unsatisfied experience. I wouldn’t recommend going here, because I feel there are allot of other places that offer better prices and deals.
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Sandra Lampson
First time eating there. Tacos were spicy
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Daniel
Very clean, especially for being high traffic fast food location! Our only complaint is and always has been how skimpy a order of bacon cheddar wedges are when it comes to toppings. Aside from a single complaint, our overall experience keeps you coming back due to food consistency, customer service, and above all CLEAN!!
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Melody Beard
Disappointed they don’t serve monster tacos anymore only around halloween. But the smaller ones still tasted just as good. My fries were hot and we didn’t have to wait long we dined inside. Inside was clean the bathrooms were clean so no complaints.
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Karen Wideman
My husband and I ate at The Union Mo. Location on July 1st 2023 around 12:30. The employees working were awesome they were very kind and actually seemed to enjoy their job. I think it was Thomas that waited on us and he noticed I needed a fork and brought one to me before I even knew I needed it. It is extremely hard to find that now, most people don’t want to work and act like you are inconvenienceing them. Great job.
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Will Mullins
Listen, I’m gonna be real. I’m definitely one of those who shows up at an annoying hour late at night and always needs a minute to order. I’m sure they love me. And I do apologize.
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Tom Walsh
The food was very good. We had cheeseburgers, egg rolls, and tacos. Lots of variety at Jack in the Box. The egg rolls are really good, but beware, they are very hot – temperature wise. Service was top notch for a fast food restaurant.
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Seth Hershey
I came for breakfast and got a burrito. As soon as I got my food and employee told me that the burrito was made wrong and to keep the wrong one and a new one was being made. I would say they customer service is good here. They down side is the correct burrito kinda sucked. Very very salty. Not the greatest.
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Lauren Davis (Wolfie)
Dayshift? 12/10 would always recommend eating here. Overnights are where it gets dicey and you may not get the food you ordered. However, pop back in during the day and they’ll happily fix the mistake!
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Rollen
I ordered 4 tacos and they were made fresh and was delicious. Thank you Jack and box. Satisfied customer for 50 years.
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