At some point every sender ends up in the same place: three browser tabs open, and the same 5 kg box to India or Poland showing three wildly different prices. One quote is £11. One is £47. One is "name your fee". None of them seem to be describing the same parcel.
They usually are. The difference is that courier, postal and traveller-based delivery are three genuinely different systems, with different cost structures, different speed promises and different ideas of who is responsible for your box. Once you know how each one actually works, picking between them takes about two minutes.
The Short Version
- Express courier (DHL, FedEx, UPS, Parcelforce): fastest and most accountable, with tracking and insurance built in. You pay properly for that, especially above 2 kg.
- Postal service (Royal Mail International, Deutsche Post): cheapest for small, light parcels up to 2 kg that are not urgent. Caps, slower delivery aims and lighter compensation.
- Traveller-based delivery (TravelCargo): you agree a fee directly with a verified traveller who is already flying your route. Usually the cheapest option for personal parcels over about 3 kg, with the caveat that availability depends on real flights.
How Each Option Works
Express couriers run door-to-door networks: collection, linehaul, customs broking and final delivery inside one company or its partners. You get a service promise, itemised tracking scans and liability cover up to declared limits. It is the professional option, priced like one.
International post moves your parcel through the national postal system of the origin country, then hands it to the destination's postal service for final delivery. Royal Mail's parcel services to most destinations outside Europe cap out at 2 kg, with delivery aims of 5 to 7 working days for standard and tracked services, and up to 8 weeks for economy shipping to Asia. Compensation starts small, around £20, and can be extended. Post wins on price for anything that fits the format, and loses on heft and urgency.
Traveller-based delivery connects you with someone who is already flying where your parcel needs to go, with space in their checked luggage. Platforms like TravelCargo add structure to what diaspora communities have done through WhatsApp groups for decades: ID-verified profiles, trip listings, in-app messaging and agreed fees. The parcel rides a journey that was happening anyway, so there is no linehaul cost to cover, no volumetric pricing formula, and no corporate markup. The trade-offs are real: no company guarantee, no standardised insurance, and availability that depends on actual humans flying actual routes.
We have covered the courier-versus-P2P question in more depth in our honest comparison of peer-to-peer delivery and traditional couriers. This guide adds the third leg most comparisons skip: the humble postal parcel.
Side by Side: The Three Options Compared
| Factor | Express courier | International post | Traveller-based delivery |
|---|---|---|---|
| Typical cost for 2 kg | Highest of the three | Lowest, often under £12 to many destinations | Fee you negotiate, competitive once parcels pass 2 to 3 kg |
| Cost for 10 kg | Rises steeply with weight tiers | Usually unavailable (2 kg cap to most destinations) | Often the cheapest by far; one suitcase slot |
| Speed | 2 to 5 working days express | 5 to 7 working days standard, weeks for economy | When the traveller flies; days to weeks |
| Volumetric pricing | Yes, chargeable weight applies | Limited or no | None; it goes in a suitcase |
| Tracking | Full chain of custody scans | Basic or full depending on service | Agreed privately, usually via chat updates |
| Insurance | Built in, extendable | Modest compensation included | Not standard; arrange privately if needed |
| Customs handling | Carrier-managed clearance | Sender completes CN22/CN23, post transmits data | Sender and traveller handle compliance together |
| Weight and size limits | Generous, up to 30 kg and beyond | 2 kg, size caps around 90 cm | The traveller's baggage allowance, commonly 20 to 23 kg |
| Best for | Urgent, valuable, business parcels | Light personal gifts and documents | Heavy or awkward personal parcels, diaspora routes |
The Pricing Mechanics Nobody Explains
The reason the same box draws three different quotes is that each system prices a different thing.
Couriers charge on chargeable weight. They weigh your parcel, then calculate its volumetric weight (length times width times height in cm, divided by 5,000) and bill whichever is higher. A light but bulky hamper can cost as much as a dense box twice its weight. Prices also step up sharply at weight breakpoints, and peak-season surcharges typically apply from mid-October through the Christmas rush.
Postal services price by format. The parcel needs to fit the small-parcel format: 2 kg maximum, dimensions under 90 cm combined, no side over 60 cm to destinations like India. Stay inside the format and the price is excellent. Step outside it, even by 200 g, and postal stops being an option at all, not just a more expensive one.
Travellers price on inconvenience. What you are really paying for is a bit of the traveller's luggage space and the detour to meet you. That is why a 10 kg box of personal effects can move for a modest agreed fee on a busy diaspora route while couriers quote eye-watering figures for the same weight, and why posting a request early matters: you want to match before someone else's box fills the suitcase.
When Each Option Wins
Choose an express courier when the parcel is urgent (a document with a deadline), valuable (jewellery, electronics, insurance matters), commercial (a customer is waiting), or when you need a defensible chain of custody. You are buying certainty.
Choose international post when the parcel is under 2 kg, personal, non-urgent and not fragile beyond padding. Birthday presents, cards, books, a pair of shoes. Standard and tracked services to most destinations aim for 5 to 7 working days at a fraction of courier prices. Avoid economy for anything with a date attached: delivery aims stretch to 8 weeks to Asia.
Choose traveller-based delivery when the parcel is personal and over about 3 kg, you have a week or more of flexibility, and your route has regular flights: London or Frankfurt to Delhi and Mumbai, Berlin to London, Amsterdam to Lagos. Festival gift boxes are the classic case, which is why our guide to sending Diwali gifts from the UK to India leans on it. Also read the honest caveats: you are arranging with an individual, so communicate in writing, agree the fee and handover before the day, and never send anything restricted. Our customs guide for international packages covers what both sides need to declare.
For a worked example with real numbers on one corridor, see how to send a package from Germany to India cheaply, which prices the same three tiers on a specific route.
Five Questions That Pick the Option for You
- Does it have to arrive by a specific date? Yes: express courier, or a traveller flight you have already matched and confirmed.
- Is it under 2 kg and non-urgent? Yes: postal will usually be the cheapest safe answer.
- Is it heavy, personal and flexible on timing? Yes: traveller-based delivery, requested early.
- Is it valuable enough that insurance matters? Yes: courier, or reconsider sending it at all.
- Does it contain food, batteries, liquids or valuables? Check what is permitted before choosing a service. Restrictions apply regardless of who carries it.
FAQ: Choosing an International Delivery Method
Is postal or courier cheaper for international parcels? For parcels under 2 kg that fit the small-parcel format, postal services are almost always cheaper, often by half or more. For heavier parcels, courier pricing climbs steeply, and traveller-based delivery frequently undercuts both.
Is sending a parcel with a traveller safe? It is as safe as the arrangements you make. Use an ID-verified platform, agree terms in writing, meet in person for handover, photograph the contents, and never send prohibited or undeclared items. The traveller is legally responsible for what is in their luggage, so honest, specific communication protects both of you.
Do all three delivery methods require customs declarations? Postal and courier parcels always require customs data (CN22 or CN23, or carrier-generated equivalents). Traveller-carried goods follow the destination's baggage rules instead, and travellers must declare goods carried for others when required. The obligations differ in form but not in principle.
What is volumetric weight and when does it hurt me? Couriers bill on the higher of actual weight or size divided by 5,000. It hurts you when a parcel is light but bulky: a large box of decorations or cushions can be billed as if it weighed far more than it does.
Which is cheapest for a 10 kg parcel abroad? Usually traveller-based delivery on a well-served route, since you are paying for luggage space on a flight already happening. On quiet routes, compare aggregators such as Parcel2Go or Eurosender against specialist courier services before booking.
Three systems, three different bets: certainty from couriers, thrift from post, and the human logistics of travellers who were going anyway. Pick based on what is in the box and when it has to land, and the price stops being a mystery. If your parcel is personal, heavier than a few kilos and flexible on timing, see who is flying your route on TravelCargo.