The decision most people make on price alone actually turns on several independent factors — timing, liability, and what the item is, not just which option looks cheaper on the day.
Deciding between paying an airline for excess or extra baggage and shipping the item separately by courier isn't really a single price comparison, because the two options differ on more than cost: timing (excess baggage arrives when you do; a courier shipment has its own separate transit time), liability and claims process (an airline's baggage liability terms and a courier's declared-value system are entirely separate frameworks, not interchangeable), and what's actually allowed (some items restricted or prohibited by a courier may be permitted in checked baggage, and vice versa — the two sets of rules aren't the same list).
This page can't tell you a specific airline's current excess baggage fee — that's the airline's own pricing, checked directly with them, not something this page invents. What it can do is lay out the actual decision criteria so the comparison is apples-to-apples.
This is specifically about the case where you're already travelling and have a real alternative to shipping. If shipping is your only realistic option and the question is whether the item is worth shipping at all, see the separate guide on whether an item is worth shipping instead — that page covers the value-vs-cost-vs-risk question generally, without assuming a flight is involved.
| Factor | Excess/extra baggage | Courier shipment |
|---|---|---|
| Timing | Arrives with you, on your flight | Has its own separate transit time — see the delivery times guide for what to expect |
| Cost basis | Set by the airline, often by weight band or fixed per-bag fee — check directly with your airline | Based on chargeable weight (the higher of actual or volumetric) for the specific route and service |
| Liability if lost or damaged | Governed by the airline's own baggage liability terms and international air passenger conventions — a different framework from a courier's declared value system | Governed by declared value and the CMR/Montreal liability limits described in the declared value guide |
| What's allowed | Airline baggage rules — check directly, as these differ from courier restrictions | Courier prohibited/restricted items — see the shipping restrictions guide |
That excess baggage fees are a fixed, predictable figure — they vary by airline, route, and fare class, and change without much notice.
That an item allowed in checked baggage is automatically fine to ship by courier, or vice versa — the two restricted-items lists aren't the same.
That the cheaper option today is automatically the better one — timing and liability differences can matter more than the price difference for a specific item.
No — that's set independently by each airline and varies by route, weight, and fare class. Check directly with your airline for the current figure rather than relying on a generic number.
No — they're separate frameworks. A courier shipment is governed by declared value and international carriage conventions (CMR for road, Montreal for air); airline baggage liability is governed by the airline's own terms and separate passenger-carriage conventions.
Not necessarily — check the courier's own restricted and prohibited items list separately. The two sets of rules aren't the same, and an item can be fine for one and not the other.