I will be spending 5 days in Prague at the end of June and am looking for shoes/sandals that lean towards the dressy side but are comfortable for walking. I will mainly be wearing skirts and ankle-length chino or linen pants. I have a high arch so I need support there. I'd like a pair of sandals and a pair of slip-on flats. I won't be doing any outdoor sports--mainly visiting museums, concerts, etc.
Check the Keen website.
I own 8 pair.
Expensive but I like the support and durability.
3 pairs of sandals, ( red Whispers, lime green Uneek and light blue Uneek) 1 pair Kaci full grain slip on, 1 pair Targhee low cut waterproof hiking boots,
1 pair Presidio zip, 2 pairs Presidio lace ups.
The sandals I’ve hiked in without too much wear and tear. The red Whispers are 6 years old, the low cut waterproof hiking boots have been to Italy, Cuba, Ireland, and the United Kingdom. Still comfortable and my go to shoe for my trips.
Oldest pair is a faded blue Presidio lace up. Wearing the lime green Uneek sandals right now.
I walked all over Belgium & the Netherlands last June in these Jambu sandals without issue and great support.
JBU by Jambu Women's Wildflower Sandal, Charcoal, 9 M US https://www.amazon.com/dp/B074KPHWX5/ref=cmswrcpapaieOy7CbAPDB4ZX
I cannot comment on specific shoes for your feet, but last time I bought shoes for walking, I tested them on a running machine / treadmill (I am not sure what the US expression is).
This way I could test them on an 8 km walk and still keep them in pristine condition, so I could return them. It was actually the suggestion of the salesman. I had to return the first pair I tested and got another pair which fitted my (rather narrow) foot.
Maybe your shoe shop would allow you to return a pair even after a long walk test if you do the walk indoors.
Since you have only a month until you leave, do you have time to break in more than one pair of new shoes? Personally, I need a couple of months to sufficiently break in shoes, allowing for testing on long days, long (and short) walks, different weather, etc. Nothing worse than blisters (or shoes that don't really hold up) on vacation. Any chance you already have something comfortable in your closet that will suffice?
Maybe you can check dreampairshoes.com ,not for ads as they really got some comfort & cheap sandals for me,firstly found at Amazon lasty year .And the New Balance 446 ,574 walking shoes are also suitable.
Rick Steves guide Sarah Murdoch publishes a guide to comfortable walking shoes on her blog Adventures with Sarah. The last update was a week ago, complete with pros and cons and pictures.