Fast-food comparison
Comparison5 min read

Jack in the Box vs Chick-fil-A: Which Is Healthier?

Jack in the Box is a late-night, everything-menu chain; Chick-fil-A is a chicken specialist. On chicken sandwiches, the published numbers favour one side clearly.

Key takeaways

  • Chick-fil-A Chicken Sandwich: 420 calories, 1,460 mg sodium. Grilled: 390 calories, 765 mg sodium.
  • Jack’s Spicy Chicken Sandwich: 690 calories, 1,360 mg sodium. Cluck Sandwich: 710 calories, 1,610 mg.
  • Jack in the Box’s lightest classic is the Jumbo Jack burger at 520 calories and 700 mg sodium.

At a glance

ItemCaloriesSodium
Chick-fil-A Grilled Chicken Sandwich390765 mg
Chick-fil-A Chicken Sandwich4201,460 mg
Jack in the Box Jumbo Jack520700 mg
Jack’s Spicy Chicken Sandwich6901,360 mg
Jack in the Box Cluck Sandwich7101,610 mg
Jack in the Box medium fries430780 mg

Jack in the Box from its 2025 Nutrition Facts PDF; Chick-fil-A from its U.S. menu nutrition pages (checked October 2026).

Short answer: Chick-fil-A. Its original Chicken Sandwich is 420 calories and the Grilled Chicken Sandwich 390 calories with 765 mg sodium, while Jack in the Box chicken sandwiches run 690–710 calories. If you are at Jack in the Box, the Jumbo Jack (520 calories, 700 mg sodium) is lighter than its chicken sandwiches.

Chicken sandwich: Chick-fil-A by 270+ calories

Jack’s Spicy Chicken (690) and Cluck (710) are both well above Chick-fil-A’s 420. The Grilled Chicken Sandwich at 390 calories and 765 mg sodium is one of the lightest sandwiches in our ranking.

Best order at Jack in the Box

The Jumbo Jack (520 calories, 700 mg sodium) beats the chicken sandwiches. Medium fries add 430. More: Jack in the Box vs McDonald’s.

When the bigger goal is eating less fast food

Swapping one chain for the other changes a meal, not the routine that puts you in the line. If you keep comparing chains because the habit keeps pulling you back, the variable that matters is the trigger: the time, the route, the tired end of the day. Pick the lighter order when you go, and work on how often you go.

Frequently asked questions

Is Jack in the Box or Chick-fil-A healthier?

On chicken sandwiches, Chick-fil-A: 420 calories (390 grilled) vs 690–710 at Jack in the Box.

What is the healthiest thing at Jack in the Box?

Among classics, the Jumbo Jack at 520 calories and 700 mg sodium is lighter than its chicken sandwiches.

Sources and method

  1. Jack in the Box — 2025 Nutrition Facts (PDF, effective November 2024)
  2. Chick-fil-A — Chicken Sandwich and Grilled Chicken Sandwich nutrition (checked October 2026)

Reviewed October 27, 2026. Named U.S. items and published portions; menus and recipes change. This article compares specific orders and does not provide an overall health score for either chain.

Related reading

If the real question is how to eat less of it, start with what to expect when you cut back: fast food withdrawal symptoms, week by week and what happens to your body from day 1 to 90.

NOPE is on the App Store

The iPhone app that warns you near the fast food chains you choose and gets you through the craving.