Why "What's the Cheapest Way to Ship?" Is the Wrong Question

I get asked this constantly by 3PL operators and warehouse managers: "What's the cheapest way to ship a package?" It's a fair question, but it's also the wrong one, at least if you're asking it the way most people do.

Most people are looking for a single answer. A carrier. A service tier. A trick. But if you're managing shipping for multiple clients, the cheapest option isn't a single thing. It changes shipment by shipment, depending on the destination, the size and weight of the package, the zone, and even the time of year. The operators who actually save money aren't the ones who found "the cheap carrier." They're the ones who stopped looking for one.

The Carrier Loyalty Trap

Here's a pattern I see over and over with new 3PL partners. They've been with the same carrier for years, sometimes because of a long-standing relationship, sometimes because switching felt like too much hassle. Either way, every package, regardless of where it's going, runs through the same carrier with the same rate card.

It feels efficient. One contract, one login, one set of rules to remember. But it's quietly expensive.

Carriers don't price uniformly. A carrier that's competitive for a shipment going cross-country might be significantly more expensive for a shipment going two states over. When everything defaults to one carrier, you're not avoiding complexity. You're just paying for it without realizing it.

What I'd Tell Any Operator Starting Today

If I had to give one piece of advice to a 3PL operator who wanted to cut shipping costs without overhauling their entire operation, it would be this: stop thinking of your carrier list as a single carrier with backups, and start thinking of it as a toolkit.

Why Mixing National and Regional Carriers Works

The biggest shift I've seen make a real difference is pairing national carriers with regional ones for the final leg of delivery: warehouse to doorstep.

Regional carriers often beat national rates within their coverage areas, and in a lot of cases, they're faster too, since they're not routing packages through a massive cross-country network. The tradeoff used to be that managing multiple regional carrier relationships alongside national ones was a logistics project in itself. Every carrier meant another integration, another rate table, another login.

That's the part that's changed. With Rocketship, operators don't have to manage those relationships manually. The platform compares rates across carriers for every package and surfaces the right carrier at the right price for that specific shipment, national or regional, whichever wins.

In practice, this means an operator gets the cost benefits of carrier diversification without taking on the operational headache that used to come with it.

Packaging: The Cost Nobody Talks About

If carrier selection is the obvious lever, packaging is the one that gets ignored, and it shouldn't be.

Most carriers price based on dimensional weight, meaning you're charged based on the size of the box, not just what's inside it. An oversized box for a small item isn't just wasted cardboard. It's wasted money on every single shipment that goes out that way.

Right-sizing packaging is one of the simplest changes a warehouse can make, and unlike a lot of cost-saving measures, it doesn't require renegotiating contracts or switching carriers. It just requires having the right packaging on hand. That's part of why Rocketship also operates RKTpackaging.com, giving operators a straightforward source for packaging that actually fits what they're shipping.

What the Numbers Tell Us

I'll be honest: when we first started talking to 3PLs about multi-carrier shipping, the pushback was almost always the same: "We've already negotiated good rates with our current carrier, so what's left to save?"

The data says otherwise. Roughly 85% of Rocketship customers see a reduction in shipping costs after adopting a multi-carrier approach. That's not a handful of edge cases. That's the overwhelming majority. The savings aren't coming from negotiating harder with one carrier. They're coming from no longer leaving money on the table by defaulting to that one carrier in the first place. If you're wondering how much you're overpaying today, request a free rate audit to compare your current shipping costs against a multi-carrier strategy.

Cheap and Fast Aren't Opposites

Here's where I'll give you my actual opinion, not just the practical advice: I think "cheapest" is the wrong goal entirely. The right goal is "best value for this specific shipment," and sometimes that's the cheapest option, and sometimes it's not.

For a 3PL, shipping speed isn't just an internal metric. It's part of your client's customer experience. If a package arrives late because it took the absolute lowest-cost route, that's not really a win. Your client's customer remembers the late delivery, not the few cents you saved on postage.

The good news is that this isn't usually a tradeoff you have to agonize over. When you're comparing rates across multiple carriers for every shipment, you're often able to find an option that's both faster and cheaper than your old default, because your old default was never optimized for that shipment in the first place.

See Where You Stand

If you're curious how your current shipping setup compares on cost, on speed, or both, we'll run a free rate audit on your shipments. No commitment, no sales pressure. Just a clear picture of what you're paying now and what's possible with a multi-carrier approach.

Request your free rate audit and see what you've been leaving on the table.