Half marathons are an ideal fitness challenge.
Not as gruelling as a full marathon and more testing than a 10k, they're the perfect middle ground to test your fitness and endurance.
They're also a great opportunity to travel.
Whether that's to Europe or further afield, or even to explore those parts of the UK you never got around to visiting.
The Best UK Half Marathons in 2025
If you fancy a bit of the latter, the UK is set to host some incredible half marathons in 2025.
From sweeping coastal routes to buzzing city runs, there's a UK half marathon for everyone.
Whether you're a seasoned runner or a nervous first-timer, this guide will help you find the best UK half marathon for your preferences in 2025.
A side note - many of the bigger events sell out fast, e.g., Inverness, Cardiff, Hackney, Liverpool and Brighton. So, in some cases, this may be the time to plan way ahead for 2026.
Scenic Half Marathons in the UK
If you're going to spend 13.1 miles putting yourself through your paces, you might as well do it somewhere with breathtaking views.
These scenic races will soon have you reaching for your running shoes.
Stornoway Half Marathon
When?: Saturday 24th May 2025.
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Celebrating its 40th birthday in 2025, the Stornoway Half is older than most of its runners.
This race takes you on a tour of the rugged beauty of the Isle of Lewis, with castle views, rolling hills and maybe even the odd sheep cheering you on.
It's got that friendly community feel - the kind of race where you're bound to make a pal or two at the start line.
Marlow Half Marathon
When?: Sunday 2nd November 2025.
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If you like your races scenic but tough, the Marlow Half Marathon is for you.
Winding through the Chiltern Hills and Hambleden Valley, expect plenty of autumnal beauty and enough undulations to keep things interesting.
This hilly run isn't one for PB chasers.
But it's worth it for the crisp air, golden-leafed countryside and bragging rights that come with conquering one of the most challenging UK half marathons.
Coniston 14
When?: Saturday 29th March 2025.
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The Coniston 14 isn't technically a half marathon - it's slightly longer at 14 miles, hence the name.
But let's not split hairs - if you can run 13.1 miles, then an extra 0.9 can't hurt, right?
Set in the beautiful Lake District, the route circles Coniston Water.
This part of the country is known for its rolling hills, lakeside stretches and enough breathtaking views to distract you from those burgeoning blisters.
It's superbly organised by local volunteers, giving it a proper community feel. When it comes to being one of the best half marathons in the UK, this one's in the conversation.
Isle of Man Half Marathon
When?: Sunday 10th August 2025.
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For those who fancy something different, the Isle of Man Half Marathon offers unbelievable coastal views, lush green hills and a unique island atmosphere away from the mainland hustle and bustle.
The route is still under wraps for 2025.
But you can expect a mix of coastal roads and countryside stretches and perhaps a few curious onlookers in the form of local wildlife.
The Toughest Half Marathons in the UK
Not for the faint-hearted. These races will test your legs and your will to live.
Sheffield Half Marathon
When?: Sunday 23rd March 2025.
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Sheffield isn't just known for steel, Arctic Monkeys and Henderson's relish.
It also hosts one of the most punishing UK half marathons on the calendar.
With an elevation gain that rivals the height of the Eiffel Tower, this race is not for the faint-hearted.
The first five miles? All uphill. Once you've conquered that, however, you’ll be rewarded with breathtaking views of the Peak District before a much-needed downhill stretch to the finish.
If your quads can handle it, this is undoubtedly one of the best half marathons the UK has to offer for those who like their races with a side of suffering.
Broadway Half Marathon
When?: Sunday 16th November 2025.
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A race that combines tricky terrain with a scenic tour of the Cotswolds, Broadway Half Marathon is no gentle walk in the park.
Expect hilly, mucky, unpaved tracks that'll have your calves questioning your sanity.
The stunning countryside views will no doubt help ease the pain, but make no mistake, this is a serious challenge.
The Big Dipper
When?: Sunday 14th September 2025.
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The name says it all. The Big Dipper is widely regarded as the toughest half marathon in England, featuring an eye-watering 1,675ft of ascent - 100ft shy of New York's One World Trade Center.
This rollercoaster of a race winds through the North Derbyshire countryside and the stunning Peak District National Park.
Relentless hills will push your endurance to its limits, but the views - and the bragging rights - make it worthwhile when you cross the finish line.
If you want a half marathon that makes your legs cry and your heart sing, this is the one.
Best City Half Marathons in the UK
If you get a kick out of running in a large crowd, here are the best UK half marathons for city runners.
Ealing Half Marathon
When?: Sunday 28th September 2025.
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Voted the UK's best half marathon, Ealing Half Marathon is known for its incredible community support and lively atmosphere.
Taking place in leafy West London, this closed-road race offers a challenging yet rewarding route with plenty of twists and turns through Ealing’s scenic streets and parks.
The enthusiastic local crowds make a huge difference, giving runners a boost just when they need it.
If you want a London-based race with a personal touch, this is a great choice.
Great North Run
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When?: Sunday 7th September 2025.
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The Great North Run is the UK's biggest (and possibly most electric) half marathon.
With over 60,000 runners, it's got a festival-like atmosphere, with thousands lining the streets to cheer you on like you're Mo Farah himself.
Starting in Newcastle, the route takes you across the famous Tyne Bridge before finishing in South Shields.
The crowd energy is unbeatable and you'll feel like a local legend crossing the finish line.
Belfast City Half Marathon
When?: Sunday 21st September 2025.
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If you fancy a fast and flat course with stunning city views, Belfast City Half Marathon is a must.
Winding through the heart of Northern Ireland's capital, the route takes in landmarks like the Titanic Quarter and City Hall.
The friendly locals and fantastic post-race pubs make this a brilliant event for both first-timers and PB chasers.
And let's be honest, what better excuse to visit Belfast than to run 13 miles before celebrating with a well-earned Guinness?
Chester Half Marathon
When?: Sunday 18th May 2025.
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Starting and finishing in the beautiful Roman city of Chester, this race offers a mix of city streets and countryside views.
The supportive crowds make a real difference. And if you're lucky, you might even find yourself running alongside fully kitted-out gladiator - it has happened.
The event is known for being well-organised, friendly and a great choice for anyone looking to enjoy a scenic run without battling any major hills.
Edinburgh Half Marathon
When?: Sunday 25th May 2025.
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Want to run one of the fastest half marathons in the UK? The Edinburgh Half Marathon route is designed for speed, making it ideal for achieving a new PB.
You'll start in the historic city centre before heading down towards the coast, with stunning views of the Firth of Forth along the way.
The cool Scottish air is a refreshing change from sweatier city runs.
And let's face it, finishing a race in Edinburgh gives you the perfect excuse to spend the rest of the weekend indulging in shortbread, whisky and all things Scottish.
One to Watch for 2026
Four Villages Half Marathon
When?: January 2026.
Image by Andy Wallace from Pixabay
For those who love picturesque countryside routes, the Four Villages Half Marathon is a gem.
Taking runners through four scenic villages in Cheshire, this race is well-regarded among local runners for its friendly atmosphere and beautiful surroundings.
It's an ideal early-year race to shake off the winter cobwebs and make a strong start to your running season.
Tips for Planning your UK Half Marathon
- Book way in advance - Half marathons in the UK sell out fast. Secure your spot early doors and make sure you book your accommodation well in advance if you're planning to stay overnight. You don't want to overspend or find everything's fully booked a week before the run.
- Layer up - The weather here is unpredictable to say the least. Layers are the key to warming up, down or protecting yourself as much as possible from those spontaneous rain showers we all know and love.
- Sleep early, leave early - Most runs start early on Sunday morning. And with roads often cut off especially for the run, everything is busier on run day. Adding another third onto Google Maps' predicted journey time should ensure you’re not late to the start line.
Run to Victory, Not Out of Data
It's great to know you're at peak fitness and looking to achieve your running goals for 2025.
But everyone knows the point of running a half marathon in the UK is to share your PB and medal pics on social media.
Planning ahead with a travel eSIM from Airalo helps you stay connected to your fitness tracker, maps and race updates without missing a step.
Check out affordable data packages for your destination here.
