Cheapest Portable Air Conditioners UK — Under £300, In Stock
Need cooling on a budget? We track the cheapest portable AC units under £300 across all major UK retailers — updated live so you see what's actually buyable.
3 of 3 in stock · 3 retailers tracked · updated 10:40
What you get under £300
At this price point you're looking at 7,000–10,000 BTU units — enough for a single bedroom or small living room (20–25m²). Key trade-off: noise. Budget units run 60–65 dB versus the 58 dB of premium models. But on a hot night, 65 dB is still better than 30°C. Every unit below is tracked for live stock and price across all major retailers.
Is a cheap portable AC worth it?
For occasional use during the 2-3 heatwaves a British summer throws at you, absolutely. A £270 unit used for 10-15 nights a year costs less than £20/night in its first year and less each year after. Compare that to a hotel room with AC at £80+ per night and the maths is clear. The units below are the best value we're tracking right now — prices update through the day.
All products— stock & price
| Status | Unit | Best price | Checked |
|---|---|---|---|
| £339 | 1d ago | ||
| £319 | 1d ago | ||
 Pro Breeze 12,000 BTU 4-in-1 Smart AC Pro Breeze | £279.99 | 1d ago |
These units sell out fast during a heatwave. Set a restock alert and we’ll email you the moment a sold-out unit is back.
Buying guide FAQ
- What's the best cooling unit to buy right now?
- Right now, 3 of 3 units we track are in stock. The cheapest in-stock option is the Pro Breeze 12,000 BTU 4-in-1 Smart AC at £279.99 from Amazon. Prices and stock change throughout the day — the table below is live.
- How often are these prices updated?
- We check every retailer multiple times per day. The table shows the most recent check time for each offer. During hot weather we increase the check frequency as stock moves fastest then. Last full sweep: 4 July 2026 at 10:40.
- Are these affiliate links?
- Yes — when you click through and buy from a retailer, we may earn a small commission at no extra cost to you. This is how the site stays free and ad-free. We also link to our own products (contract templates, childminder policies) where relevant — those go directly to our Stripe checkout. Full details on our disclosure page.