Introducing Letters and Small Parcels by Whistl

Delivered by your postman.


The UK's second-largest postal company.
Deliver 4 billion items a year.
Trusted by some of the UK's biggest companies.
Part-tracked service.

Why choose Parcel2Go?

Save up to 21% on the cost of second-class stamps.
Collected same-day when ordered before 11am.
Delivered by your postman.
Delivered in 3-5 working days.
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Maximum size:

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Letters and Small Parcels by Whistl: How It Works


Book your delivery of letters or small parcels online at


Pack your letters and small parcels into a box with your label attached before dropping it off or having it collected.


Your letters and small parcels are sorted by Whistl and delivered by your postman.

Discover the best way to send
letters and small parcels.


Find your nearest drop-off point

Drop your parcel off at any one of our local drop off points. Simply enter your town or postcode below and search for your most convenient location.

Frequently asked questions...

Each box of letters and small parcels you send through our Letters and Small Parcels by Whistl: Drop-Off service can weigh up to 20 kg, with a maximum Length + Girth of 2.2 m. If you’ve booked a collection service, your boxes cannot exceed 20 kg in weight and a maximum length of 1 m.

Length + Girth is calculated by adding your box’s width and height together, multiplying that number by two, and adding it to the length of your box.

Please note that if one of your boxes exceeds the size limits stated above, you could incur an additional surcharge from the courier that you’ll be required to pay.

For more information on surcharges, click here

Delivery times for Letters and Small Parcels by Whistl take 3–5 days from the point of collection.

If youre using a drop-off service, this delivery time will begin when the courier comes to collect it, which could be the following day depending on the time at which you dropped your box off.

You dont need to sort your items when sealing them in your boxes.

However, you will be required to accurately declare the number of letters, large letters and small parcels youll be sending when booking your order. Failure to properly declare your items can result in an additional surcharge issued by the courier.

You can send as many boxes as you like per order.

However, you should note that each box you send will have a minimum spend of £20 excluding VAT. For this reason, we recommend that you consolidate your items to ensure you maximise your potential savings.

If one of the items you send using the Letters and Small Parcels service can’t be delivered, it will return to a local Royal Mail branch and a calling card will be left at the recipient’s address prompting them to collect it.

In the event that an item can’t be delivered due to illegibility, the item will instead be returned to the sender

Our Letters and Small Parcels services cover the Highlands and Islands, Scilly Isles and the Isle of Man as well as the UK mainland. 

Please be aware that when sending from areas other than the UK mainland, deliveries may take slightly longer.

Letters and Small Parcels is a ‘part-tracked’ service, meaning that you can electronically track your box of letters and small parcels up until the point of handover at the Royal Mail depot.

Once your items have been handed over, you can expect your items to be delivered within 48 hours.

You won’t have access to tracking on other second-class services. That’s why you’re getting an extra level of security when you book with our Letters and Small Parcels service.

You do not need to apply any stamps onto your items. Simply ensure the delivery address is clearly shown on the letter or parcel.

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