Alright, let’s get technical for a second. Some websites will argue the A38 is longer if you include its branches, or that the A9 in Scotland has a bigger emotional toll—but officially, the A1 has the longest continuous route number. The UK’s road numbering system is famously insane, like someone let a toddler play with stickers. So yes, the A1 wins.
But here’s my personal favorite weird fact: the A1 used to end in Edinburgh, but now it technically continues as the A720 around the city. So the road “ends” in a confusing roundabout near a shopping centre. Anti-climactic? Maybe. But hey, that’s Britain for you—dramatic landscapes, then a carpark.
What about Northern Ireland or Wales?
Ah, you’re sharp! The UK includes Northern Ireland, and its longest road is the A1 as well—but that’s a different A1! The Northern Irish A1 runs from Belfast to the border at Newry, about 47 miles. Wait, that’s tiny compared to the big A1! Yes, but in a region full of winding country roads, 47 miles feels like an epic quest. Respect to it.
And Wales? Their longest is the A5, which connects London to Holyhead. But it’s heavily shared with England, so the A470 is often called Wales’ own longest, running from Cardiff to Llandudno, about 186 miles of valleys, sheep, and sudden rain. Sheep are a recurring theme, aren’t they?
Longest Road in UK 🇬🇧🚗 #travel #facts #roadtrip - YouTube
