Cheapest Grocery Delivery Service Right Now: Instacart, Walmart, Shipt, and More

Overview

If you are trying to decide between grocery delivery apps, start with one useful mindset: compare total checkout cost, not headline pricing. A service can look cheap because it advertises low delivery pricing, then become expensive once item markups, small-order fees, and tips are added. Another service may have a membership fee that looks costly upfront but becomes the best grocery delivery deal if you order often enough.

That is why a good grocery delivery comparison should answer three questions:

• What will one order really cost me today?
• What will this service cost me over a month or year?
• How much convenience am I getting for the extra spend?

For most shoppers, the cheapest option changes based on basket size and frequency. A person placing one emergency order a month may reach a different answer than a family doing weekly restocks. The same is true for warehouse and marketplace ordering. A service that works well for pantry staples may not be cheapest for fresh produce, same-day needs, or heavy items.

When people search terms like cheapest grocery delivery, instacart vs walmart delivery, or shipt fees, they are often trying to solve one practical problem: how to stop overpaying for convenience. The best way to do that is to treat grocery delivery as a small budgeting exercise rather than a loyalty decision.

As a rule, compare each service using the same exact list: milk, eggs, bread, produce, frozen items, household basics, and any brand-specific staples you buy every week. If you change the list between services, the comparison becomes less useful. Keep the cart identical, then compare the full out-the-door cost.

Also remember that “cheapest” does not always mean “best value.” If one platform consistently substitutes poorly, has fewer stores in your area, or offers worse delivery windows, the money saved may not be worth the hassle. This guide keeps the focus on cost, but it helps to note quality factors in the same spreadsheet or notes app.

How to estimate

The simplest way to compare grocery delivery services is to use a total-cost formula. You do not need a formal calculator. A notes app, a spreadsheet, or even paper works.

Use this framework for each service you want to compare:

Total order cost = item subtotal + item markups + delivery fee + service fee + heavy/small-order fees + taxes + tip - promos or credits

If the service requires or strongly encourages a membership to unlock lower fees, calculate two versions:

• Pay-per-order cost
• Membership-adjusted cost

To estimate the membership-adjusted cost, spread the plan cost across your expected number of orders.

Membership cost per order = membership fee divided by expected number of orders in the plan period

Then add that per-order membership cost to your checkout total.

For example, if a plan costs you an annual fee and you expect to place two orders per month, divide the annual fee by 24 to get an estimated cost per order. If you only order a few times a year, that same membership becomes much harder to justify.

Next, compare three scenarios for each platform:

1. One-time order for occasional use
2. Monthly average for moderate use
3. Frequent-use case for weekly or near-weekly ordering

This prevents a common mistake: choosing a service because it is cheapest on the first order with a promo, then discovering it is not the lowest price now once the discount ends.

Here is a practical method that works well:

1. Build the same grocery cart across Instacart, Walmart, Shipt, and any local alternative available in your ZIP code.
2. Use the same delivery timing when possible. A rush delivery window is not comparable to a flexible or next-day window.
3. Stop at the final pre-payment screen and record every line item.
4. Note whether in-store prices appear different from app prices.
5. Apply any promo code that is clearly available to you.
6. Separate one-time promotions from recurring savings.
7. Estimate your normal tip amount consistently across all services.

That final point matters. Many comparisons look unrealistic because one platform is shown with no tip and another with a full tip. If you would normally tip a driver or shopper, include that in every estimate so the comparison reflects real spending.

If you want an even cleaner grocery delivery comparison, track one extra number: cost above in-store shopping. This is the amount you are paying for convenience.

Convenience premium = total delivered cost - estimated in-store cost for the same items

This number is useful because it tells you whether the service is replacing a trip efficiently or quietly inflating your weekly grocery budget.

Inputs and assumptions

A useful estimate depends on choosing the right inputs. Below are the variables that most often change the answer when comparing grocery delivery apps.

1. Basket size

Small baskets often get punished by minimum-order rules, higher per-item markup impact, and flat fees that take up a large share of the order. Larger baskets can make a membership or flat-fee model look better. If your orders are usually under a typical grocery run, compare a small basket and a full weekly basket separately.

2. Order frequency

This is one of the biggest decision points. If you order once in a while, a subscription may not make sense. If you order weekly, the math can flip quickly. Do not evaluate membership plans emotionally. Calculate your expected order count honestly.

3. Item pricing versus store pricing

Some services or store partners may reflect shelf prices more closely than others, while some may include app-side markup on at least part of the catalog. You do not need to know the policy in advance. Just compare your exact cart item by item. Brand-name staples make this easier because they are simpler to match across retailers.

4. Delivery and service fees

These can vary by location, order size, timing, and demand. Flexible delivery windows may be cheaper than immediate delivery. If you are price-sensitive, compare the cheapest practical window, not the fastest possible one.

5. Tips

Whether you think of tip as part of the service cost or a separate courtesy expense, it still affects your budget. Include it in your estimate if you typically tip. If you are comparing platforms for personal use, build your real habit into the number.

6. Membership benefits

A plan may reduce delivery fees, minimums, or service charges. Some memberships also include perks outside groceries. For a strict grocery-only comparison, focus only on the benefits that affect your food and household ordering. If you already subscribe for other reasons, your effective grocery cost may be lower.

7. Promo codes and first-order offers

Promotions are useful, but they can distort long-term comparisons. Record them in a separate column:

• First-order savings
• Repeat-order savings
• Membership-only savings

That way you can see whether a service is only winning because of a temporary discount. If you are looking for broader discount tactics, our Free Shipping Promo Codes That Still Work at Popular Stores guide uses the same practical approach: save with recurring offers, not just headline deals.

8. Store availability in your area

This is easy to overlook. A great theoretical deal does not help if the store selection near you is limited or the low-cost retailer you want is not available through the app. Always compare services using the stores you would actually buy from.

9. Substitutions and out-of-stocks

A service that causes frequent substitutions can quietly increase your bill if replacement items cost more. For recurring use, make a note of how often each app leads to unwanted swaps or missing items. The cheapest grocery delivery option on paper may become less attractive if it causes waste or repeat trips.

10. Pickup as a control option

If a service also offers pickup, use that as a baseline. Pickup often removes some of the delivery premium while preserving the app pricing and ordering convenience. If delivery fees are pushing your total up too far, pickup can tell you how much of the extra cost comes from transport versus markup.

One more helpful assumption: compare on an ordinary week, not during a holiday rush. Peak demand can make fast delivery more expensive and temporarily distort the numbers. Since this article is meant to be revisited, a normal-week comparison is a better baseline.

Worked examples

Because service pricing changes by location and over time, the safest way to use examples is to focus on the method rather than fixed numbers. Below are three realistic comparison setups you can copy with your own cart.

Example 1: The occasional convenience order

You place one grocery delivery order a month when you are busy or sick. Your cart is small to medium: basics, snacks, a few household items. In this case, your main risks are small-order fees, higher delivery charges, and overpaying for a membership you barely use.

What to compare:

• One-time order total on Instacart
• One-time order total on Walmart delivery
• One-time order total on Shipt or a local alternative
• Pickup total as a baseline

What usually matters most: temporary promos, basket minimums, and whether one platform prices items closer to what you would pay in store.

Likely decision rule: choose the service with the lowest total delivered cost after promo, but avoid annual memberships unless the savings are immediate and clear.

Example 2: The weekly family restock

You place four or more orders a month and buy enough each time that convenience is worth paying for. Here, a membership plan becomes much more important, and item pricing differences across a full cart can outweigh a small fee difference.

What to compare:

• Total monthly spend using pay-per-order checkout
• Total monthly spend with each membership option
• Average cost per order including your membership allocation
• Average convenience premium versus in-store shopping

What usually matters most: recurring fee reductions, lower item markup on a large basket, and reliable fulfillment that reduces repeat trips.

Likely decision rule: the best grocery delivery deal is often the one with the lowest full-month total, not the lowest visible delivery fee.

Example 3: The deal-focused household

You split shopping across stores and actively chase sales. You may buy pantry goods from one retailer, produce from another, and household basics from a warehouse or big-box chain. In this case, no single app may win every order.

What to compare:

• Which service is cheapest for brand-name staples
• Which service is cheapest for store brands
• Which service gives the best promo cadence
• Whether a hybrid approach beats one-service loyalty

What usually matters most: store selection, promo stacking, and whether your app lets you capture sale pricing without adding too many fees.

Likely decision rule: use one primary service for routine orders and switch only when a promo or category-specific pricing difference is meaningful.

If your shopping style overlaps with warehouse runs and household stock-ups, it may also help to compare delivery costs against in-person club shopping. Our Costco Coupon Book Guide: Best Monthly Deals and Warehouse Savings to Check is useful for deciding when a bulk trip may beat an app order on staples.

And if your grocery order includes general merchandise, it can be smart to split the purchase. Household items, storage, small electronics, or cleaning gadgets may be cheaper through direct retailer deals than through a grocery app marketplace. See Walmart Deals Today: Cheapest Picks in Tech, Home, and Everyday Essentials and Amazon Deals Today: Best Cheap Buys Under $50 That Are Actually Worth It when you want to compare beyond food alone.

A simple scoring sheet can help if the totals are close. Rate each service from 1 to 5 on:

• Total cost
• Store selection
• Item pricing
• Delivery windows
• Substitution quality
• Promo usefulness

If one service is slightly more expensive but clearly better on execution, that may still be the right choice. The point is to make the tradeoff visible.

When to recalculate

The most practical reason to bookmark this topic is that grocery delivery economics change. Fees, membership perks, available stores, promo quality, and item pricing can all move. A service that was cheapest for you six months ago may not be the lowest price now.

Recalculate when any of these happen:

• You move to a new ZIP code or spend time in another delivery area
• Your household size changes
• Your order frequency shifts up or down
• A membership renews or you are considering canceling one
• Your preferred store joins or leaves a platform
• A service changes fee structure, minimums, or delivery timing
• Your budget gets tighter and the convenience premium matters more
• You start using new promos, discount programs, or benefit offers

It is also worth checking whether you qualify for a savings program outside the grocery app itself. Students, teachers, seniors, and military households sometimes find useful discounts or adjacent savings that free up more room in the food budget. Related guides on cheapest.news include the Student Discounts List: Brands, Tech, and Services Offering the Best Savings, Teacher Discounts Guide: Best Classroom, Tech, and Everyday Savings, Senior Discounts List: Restaurants, Retailers, and Services Worth Checking, and Military Discounts Guide: Stores and Services With Verified Savings.

For an easy routine, revisit your grocery delivery comparison every quarter or whenever one of your current assumptions changes. Keep a short note with:

• Your typical basket size
• Your monthly order count
• Your usual tip
• Your active memberships
• Your best current promo options

Then run the comparison again using the same cart. It only takes a few minutes once you have the template.

If you want the most practical takeaway, use this checklist before placing your next order:

1. Open two or three services, not just one.
2. Build the same basket on each.
3. Compare the final pre-payment total, including tip.
4. Note whether the item prices look inflated versus your usual store.
5. Apply any promo you are actually eligible to use.
6. If totals are close, choose the service with better reliability or better store access.
7. If delivery feels too expensive, check pickup before you check out.

That process is simple, repeatable, and much more reliable than assuming one brand is always cheapest. For most households, the best answer is not a permanent winner. It is the service that gives the lowest full delivered cost for your real basket, in your area, under your current habits. Recalculate when those inputs change, and you will make better grocery delivery decisions with less effort.