To wonder what these stupid little flies are

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We have some silly little flies in the kitchen and the same ones in the bathroom. We have done boiling water down the sinks, checked the for bowl and ensured there is no off fruit anywhere.
We can't seem to see what is encouraging them or know what to do about it
Advice gratefully received!

We appear to have the same stupid flies in our house plant pots and a slightly different variety in our gutters. I suspect the first ones are fungus gnats and the latter are drain flies.

We have little flies! I thought it was my house plants!

Make a fruit fly trap with a bowl and some cling film.

https://www.bbcgoodfood.com/howto/how-to-get-rid-of-fruit-flies-diy-traps-you-can-make-at-home

mine love the grounds tray in my coffee machine…so annoying.

Yep sounds like drain flies

We had them from house plants? Apparently they like the soil when it’s damp. I had to repot them all and throw away a couple.

They’re fond of bananas

Do you have houseplants? If so could be little black flies from there.

We had an infestation of them. We got sticky traps that you put in the soil from Amazon which got covered by them and then after Googling ideas we ordered nematodes which come in a paste and you make a solution and pour into the soil. That worked and cleared them right up and they haven't been back since (touch wood!!)

We have them too, they love to fly around my head and land in my tea
I've tried sticky traps and the number they caught horrified me so I've put all my plants outside in the hope they'll go away.

Thanks @HouseofDreams I'll try that.

Time flies like an arrow, fruit flies like a banana…

if you’ve got houseplants near where you’re finding the flies they’d be my bet too. I’d not had as any till the last year or two, I think maybe some of the peat free composts may be more prone to it. They were very small, even smaller than fruitflies.

Thanks all. Put the kitchen houseplants out of the house and will now start work on trying to find something to put down drains!

Lemon, bicarbonate and white vinegar for drain flies and scoop out the existing water where it has pooled as this will be where the larvae are - also if it’s a shower drain, remove hair, soap scum, etc

All of the above will work to an extent, but if they’re drain flies, sometimes more extreme measures are needed. I dealt with these little bastards for 5 months. Not the classic drain fly (little moth-like ones), but phorid flies, which look like little black arrows, and just sit there, but are quick if you try to catch them. I tried all the things, but in the end took apart the whole sink waste, got the marigolds and a bucket and scrubbed the living daylights out of the inside of the pipes. They apparently live in a biofilm that often the things you pour down the drain don’t penetrate - you have to physically remove it. Not a fly since.