London has a well-earned reputation for being expensive, and honestly, it deserves it. A single coffee-and-pastry stop can quietly eat £8, and a “quick” dinner out rarely comes in under £30 a head. But here’s the part that often gets lost in the doom and gloom of London price tags: the city is also genuinely packed with brilliant, low-cost, and completely free things to do — and autumn happens to be one of the best seasons to take advantage of them.

This isn’t a generic “go to a free museum” list either. Below are actual, currently running events, seasonal activities, and everyday budget tricks that make it entirely possible to have a proper cheap things to do in London this autumn without your bank balance taking the hit.

Start With the Permanent Free Collections

Let’s get the obvious one out of the way first, because it genuinely bears repeating: most of London’s major museums and galleries never charge for general entry. The British Museum, Tate Modern, Tate Britain, the National Gallery, and the Natural History Museum all offer permanent collections completely free of charge, all year round, autumn included.

Where people often get caught out is assuming the whole museum is free just because entry is. Special, ticketed exhibitions at places like Tate Modern or the National Portrait Gallery can carry a genuinely steep price tag, so if you’re trying to keep your day entirely free, stick to the permanent galleries rather than the headline touring shows advertised on the posters outside.

The Burberry Trench Exhibition Is Genuinely Worth Knowing About

Speaking of exhibitions worth knowing about specifically because they’re free, the V&A South Kensington has opened a free display tracing the history of the Burberry trench coat, running from 21 September 2026. It’s a rare case of a genuinely high-production fashion exhibition — the kind that would usually carry a ticket price well into double figures — being made completely free to the public.

If you’ve got even a passing interest in fashion history, it’s one of the smarter picks among the cheap things to do in London this autumn precisely because it’s the sort of exhibition that would normally cost you.

Free Autumn Walks Through London’s Parks

London is genuinely one of the greenest major cities in the world, with roughly 20% of the city made up of public green space, and autumn is arguably the best season to actually see that. Richmond Park, Hampstead Heath, and Kensington Gardens all put on a proper seasonal display as the leaves turn, and every single one of them costs precisely nothing to wander through.

For something a little different, Hampton Court Palace waives entry fees to several of its formal gardens — the Great Fountain Garden, the Privy Garden, the Kitchen Garden, and the Pond Garden — meaning you can get a proper autumnal wander with a genuinely grand backdrop without paying to enter the palace itself. It’s one of the more underrated free things to do in London this season, mostly because people assume the whole site requires a ticket.

Free Festivals and Cultural Events Happening This Autumn

Autumn brings a genuinely strong run of free cultural events to the capital, and it’s worth building a day trip around whichever one lines up with your visit. Trafalgar Square hosts one of the biggest Diwali celebrations outside India, a free, family-friendly event featuring traditional dance, music, food stalls, and spectacular lighting.

For something more unusual, St Katharine Docks near Tower Bridge runs its annual Classic Boat Festival, with free entry to see vintage boats, including surviving Dunkirk Little Ships that took part in World War II’s Operation Dynamo, moored for public viewing. Some owners even let visitors step aboard for a closer look.

Gresham College also restarts its autumn term of free public lectures, mostly held at Barnard’s Inn Hall in Holborn, covering everything from empathy and philosophy to the science of puppetry. It’s a genuinely underrated pick for anyone who wants a free, indoor activity for a rainy autumn afternoon — and most lectures are also streamed online if you can’t make it in person.

Cheap (Not Free) Tickets Worth Budgeting For

Not everything worth doing in autumn is free, but plenty of it is genuinely affordable if you know where to look. The BFI London Film Festival, celebrating its 70th edition this year, screens over 200 films across 12 days at BFI Southbank and cinemas across the city. Individual screenings start from £15, but anyone under 25 can get festival tickets for as little as £6 — a genuinely excellent deal for a festival of this scale.

If you’re the sporty type rather than the cinema type, autumn also brings the Shoreditch Half and Richmond Runfest, the latter offering a 10k route that stays entirely within Kew Gardens, with half and full marathon options running from Kew through to Richmond. Entry fees vary, but they’re generally reasonable compared with major spring marathons, and they double as a scenic way to see London’s autumn colour up close while getting some exercise in.

Food Festivals: Cheap Eats Done Properly

Street food festivals are one of the best ways to eat well in London without paying restaurant prices, and autumn brings a decent run of them. The Barnet Food Festival takes over the RAF Museum’s airfield with global street food stalls, live music, and a kids’ zone, giving you a proper day out without needing to book a table anywhere or commit to a full sit-down meal.

Most street food events like this let you graze across multiple stalls for a fraction of what a restaurant tasting menu would cost, and the informal, outdoor setting suits the crisp autumn weather far better than a stuffy indoor booking would anyway.

The Sunrise Trick: A Free (Almost) Sky Garden Experience

Sky Garden, the free public viewing space at 20 Fenchurch Street, is already one of London’s best-known budget tips, since it offers genuinely spectacular views over the city without the entry fee charged by paid viewing platforms like the Shard. Booking ahead is essential since slots fill up fast, but once you’re in, it costs nothing beyond whatever you choose to buy.

For something a little more special, look out for “Sunrise at Sky Garden” morning sessions, where you can sip a tea or coffee, nibble a breakfast pastry, and watch the city wake up from above. It’s not entirely free, since you’re paying for the food and drink, but it’s a genuinely memorable low-cost experience that autumn’s later sunrises make far more manageable than trying to catch one in midsummer.

Small Museums Worth Knowing About

Beyond the obvious major institutions, London has a genuinely strong network of smaller, specialist museums and galleries that rarely charge for entry, where you can get to know emerging artists and niche subjects without paying a penny. It’s worth setting aside an afternoon to hop between two or three smaller spaces rather than committing an entire day to one large, crowded institution — you’ll often come away with a more interesting, less rushed experience.

If gaming or interactive tech appeals, some larger free museums also offer optional paid add-on spaces, like retro gaming zones or VR experiences, which let you dip into a small extra cost only if something specifically catches your eye, rather than paying a blanket entry fee upfront.

Practical Money-Saving Tips for an Autumn Day Out

A handful of practical habits make a genuine difference to how much your day actually costs, beyond just picking free attractions:

  • Bring your own coffee or snacks for park walks. A flask and a packed snack turn a free walk into a genuinely zero-cost outing, rather than an accidental £15 café stop.
  • Book free events and slots in advance. Popular free experiences like Sky Garden and some festival tickets require advance booking, and earlier booking windows are often cheaper for anything with a small associated fee.
  • Travel off-peak where your schedule allows. London transport fares drop outside peak commuting hours, which can meaningfully cut the cost of a day spent hopping between free attractions.
  • Check under-25 and student pricing everywhere. From film festival tickets to some museum add-ons, discounted pricing for younger visitors is more common than people realise, and it’s rarely advertised loudly.
  • Layer up rather than relying on indoor stops to warm up. Autumn weather can turn quickly, and a proper coat means you’re not tempted into an expensive café stop purely to escape the cold.

Autumn-Specific Freebies You Might Miss

A few seasonal freebies only run for a short window each year, so it’s worth checking dates carefully rather than assuming they’re available whenever you happen to visit. Black on the Square, London’s autumn celebration of Black culture and heritage, brings free performances, music, and food stalls to Trafalgar Square, alongside the city’s other seasonal cultural events. Ice hockey season also restarts in September, and while match tickets aren’t free, prices for London’s teams tend to sit well below equivalent football or rugby fixtures, making it a genuinely affordable way to spend an autumn evening if you fancy something a bit different from the usual museum-and-park routine.

It’s this kind of seasonal detail that separates a generic “free things to do in London” list from one properly built around cheap things to do in London this autumn specifically — timing genuinely matters here, and a lot of the best options simply aren’t available the rest of the year.

Building a Full Cheap Day Out From Scratch

If you want to turn a handful of these ideas into a genuinely full day rather than just an isolated activity, sequencing matters. Start early with a free park walk while the morning light is at its best for autumn colour, move into a free museum or gallery around lunchtime when it’s easier to grab a bench with your own packed food, and save any ticketed event, like a cheap BFI screening or a food festival, for the evening when you’re ready to actually spend a little.

This kind of structure keeps the free and cheap parts of your day doing the heavy lifting, while any paid element becomes a deliberate, planned treat rather than an accidental cost that creeps up on you. It’s a simple approach, but it’s genuinely the difference between a £5 day and an accidental £60 one in a city as easy to overspend in as London.

Frequently Asked Questions

What are the best completely free things to do in London this autumn? Permanent collections at major museums like the British Museum and National Gallery, autumn park walks in Richmond Park and Hampstead Heath, Hampton Court’s formal gardens, and seasonal events like the Diwali celebrations in Trafalgar Square are all genuinely free.

Is the BFI London Film Festival affordable? It can be, particularly for younger visitors. Standard screenings start from £15, but festival tickets are available from as little as £6 for anyone under 25.

Are there free events specifically for autumn in London? Yes — Diwali celebrations, the Classic Boat Festival at St Katharine Docks, and Gresham College’s autumn lecture series are all free and specific to this time of year.

How can I keep transport costs down while exploring London on a budget? Travelling outside peak hours reduces fares noticeably, and many of the free attractions on this list — parks, gardens, and smaller museums — sit close enough together to combine into a single day out, cutting down on the number of separate journeys you need to make.

Final Thoughts

Between free museum collections, seasonal park walks, cultural festivals, and genuinely good-value ticketed events like the BFI London Film Festival, there’s no shortage of cheap things to do in London this autumn if you know where to look. The trick is treating the free and low-cost options as the main event rather than a fallback plan — because honestly, a golden afternoon in Richmond Park or a free evening at a Gresham College lecture often ends up being more memorable than whatever expensive alternative you were originally considering.

Pick a few from this list, check the dates and booking requirements in advance, and you can genuinely have a full, varied autumn in London without your card taking much of a hit at all.

This article is for general information purposes and reflects event listings, prices, and opening details reported at the time of writing. Dates, ticket prices, and availability can change, so always check official venue and event websites before planning your visit.