Where to buy Size 11 us 9 uk, 43 women's shoes shipping worldwide
Crispins Shoes, UK
150+ 5 star Google reviews. Extensive range of premium quality shoe brands up to size 12 UK (46 EUR or 14.5 US). Crispins ship worldwide or visit their London store. Reasonable flat rate shipping for UK, EU & USA. All taxes and duties included for USA & EU.
Magnus Shoes, UK
Large size specialists for over 50 years stocking women's shoes up to size 12 UK (46 EU) & a few flat sandals and slippers in size 13 UK (47 eu). Wide range of their own Magnus designs & top brands including Gabor, Remonte, Josef Seibel, Skechers & Hogl. See 360° views of all footwear on their website which ships worldwide or visit their store in Harpole, Northampton.
Women's shoe superstore for large sizes (standard and wide). Mainly sizes 9-12 uk (43-46 eu, 11-14 us) with summer sandals in size 47 eu and a small range of 42 & 42.5 shoes. 40+ European shoe brands including their own exclusive labels. Ships worldwide from Ireland with taxes included and local return addressfor UK, US & Canada orders.
Global online fashion giant with a huge range of shoes in size 9 uk (11 us) from several brands. Many ASOS brand shoes go up to size 10 or 11 uk (12 or 13 us) with a smaller range in 12 & 13 uk (14 & 15 us) - all at affordable prices. They also do wide fit fashion shoes up to 13 uk (15 uk) which is rare. Some reviews here suggest larger sizes can run small, so you may need to size up. 
2024 Update: While ASOS still offer free shipping worldwide with minimum spend & free UK and US returns, they do now charge for returns in some countries so check before you order.
The Amazon Essentials brand does fashionable styles at great prices up to size 15 US and they've a good range up to size 12/13 us including Sam Edelman, Naturalizer and Journee. For sizes 13-16 us, they tend to be either Chinese brands or unisex. If you have Amazon Prime, many shoes have free, fast shipping.
UK brand specialising in luxury comfortable wide & extra wide shoes available up to size 44 EU or 9.5 uk, including bunion friendly styles. Good range of occasion shoes, including bridal. Smart flats and sandals also available. Their boots and dressy trainers go up to size 43 EU. Ships worldwide with all taxes included & free returns for UK and USA.
British shoe brand designed exclusively for sizes 42-46 EU standard and wide fit, launched by Laura in 2020. Beautiful flattering flats, heels & boots with new styles & colours launching regularly through the year. Ships worldwide from the UK.
Avenue, USA
Plus size clothing online store with a great range of fashionable wide & extra wide shoes & boots up to size 13 US. Since 2024 they sell lots more shoe brands instead of just their own labels, with lots of medium width and some narrow shoes available too. Their own Cloudwalkers brand features special comfy insoles. In the US, there's free exchanges and free 60 day returns for store credit, but otherwise there's an $11 charge. Ships worldwide via Global-e.
UK brand LTS specialises in clothing for tall women & ships worldwide. Long Tall Sally shoes go up to size 46 EU. They also sell wide & extra wide shoes up to size 10 uk from sister brand Yours clothing. I've had feedback that LTS UK/US shoe sizes run small, so buy your EU size or go up a size (UK/US). 
Converse
Iconic Converse sneakers come in all sorts of styles these days - platforms, prints, lace, even ballet flats. All women's styles come in 11 us (42.5, 9 uk) & the classic unisex high tops go right up to 19 us women's or 54 eu. Selected styles come in medium and wide width and have comfort insoles. Even better you can now design your own custom converse up to size 15-18 us (48-53 eu) & still get 30 day returns. Check out the special wedding sneakers and custom glitter converse - OMG! Converse ship worldwide with taxes included & free returns for most countries. TIP: Converse advise to go half a size down from your usual sneaker size for most styles.
Azalea Wang, USA
Eye catching trendy heels, boots, fashion sneakers & slippers at affordable prices. Most styles come in size 11 us, with a limited range in size 12 and a few 13s. Ships to USA, Canada, Mexico, Australia and some of Europe with taxes included. $10 US returns but no international returns.
Sam Edelman, USA
US designer known for modern luxe footwear at reasonable prices. Smart fashionable boots, flats & dressy heels. All styles in size 11, with a good range in size 12. Limited range in sizes 11.5, 13 and 14. Shop in store in NYC, Paramus, New Jersey and Beverly Hills. Free US shipping & returns. They also ship worldwide using Borderfree, with all taxes and duties included at checkout.
Naturalizer, USA
US brand founded in 1927 focused on fashionable comfortable footwear. Good selection of flats, heels (including wedding shoes), sandals, boots & sneakers going up to size 12 US in both medium and wide width. Limited size 13 range & some narrow size 11s. They ship worldwide via Borderfee with all taxes included at checkout. They've a special printable shoe size and width tool so you can get your size right. Now online only apart from their NYC store.
J Renee, USA
US brand J Renee are particularly good for occasion wear, including wedding shoes in medium (A/B), wide (C/D) and extra wide (E) widths. They also do boots and a range of more casual slip ons and sneakers. Select styles go up to size 13 US. are available. Free US shipping & returns. J Renee ship almost worldwide. If you filter by size or width, it remembers your choice for future searches. So if you need to change width or size use the 'reset' button to make sure you see all available shoes.
Podiatrist founded Australian brand for stylish comfy footwear of all types, from casual to work to bridal. Unique footbed "fit kits" mean styles can be customised for both narrow and wide feet as well as half sizes. You can shop in-store in Soho NYC (opened Summer 2024), Auckland & Australia. They ship worldwide with taxes included for UK & US orders and free returns.
Fashionable & affordable dressy heels, flat sandals, ankle boots & long boots in sizes 11 and 12 au. They also do wide fit size 11s & some wide calf boots. Stores & stockists across Australia. Also ships to New Zealand, Singapore, Hong Kong, Malaysia, Europe & the UK.
