- Must visit
The British Museum
World-famous museum of human history, art, and archaeology, with highlights such as the Rosetta Stone and Parthenon sculptures.
Omio recommends booking the train as it is the most popular option from Porthmadog to London among Omio's users. If you are prioritising price take the train with prices starting from $40. For those with little time consider booking a train which can get you there in 6h 1m. The ticket price range depends on the travel mode: a train costs an average of $40, and a train costs an average of $40.
Distance: 195 miles (315 km)
Most popular Train | Driving |
|---|---|
$69 Average price Cheapest | $85 Average price (fuel + tolls) |
6h 31m Average total duration Fastest 6h 1m Onboard + 30m Additional time* | 5h 23m Average total duration (door-to-door) |
![]() Most popular train company | Your own car or car rental |
Direct Options | Direct Options |
Tickets start at around $69 (€57) compared to roughly $85 (€70) in fuel and tolls — a saving of about $16 (€13). The journey takes 6h 1m versus 5h 23m by car, so you'll arrive a bit later, but you can work, read, or sleep along the way rather than spending the time behind the wheel. You'll also save the hassle of parking at the other end.
Driving is worth it if you're on a tight schedule, travelling as a group, or want to stop somewhere en route.
Compare train prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Trains from Porthmadog to London run on average 4 times per day, taking around 6h 1m. Cheap train tickets for this journey start at $40 (€32) if you book in advance.
The earliest train runs at 05:29, the last at 18:06. The fastest train covers the 195 miles (315 km) distance in 6h 7m.
Distance 195 miles (315 km) |
Average train duration 6h 1m |
Cheapest ticket price $40 (€32) |
Trains per day 4 |
Fastest train 6h 7m |
First train 5:29 AM |
Last train 6:06 PM |
Cheapest Month Aug |
Cheapest Day Fri |
High Season Jul - Sep |
Low Season Oct - Dec |
Busiest Day Thu |
Least Busy Day Thu |
Best time to book 7 days |
Discover the best of London — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect London trip today.
World-famous museum of human history, art, and archaeology, with highlights such as the Rosetta Stone and Parthenon sculptures.
Major art museum on Trafalgar Square with an outstanding collection of European paintings from the 13th to early 20th centuries.
Leading modern and contemporary art gallery in a former power station on the Thames, known for landmark exhibitions and river views.
Lively district known for street performers, elegant arcades, shopping, and easy access to theatres and central landmarks.
One of London's best walking areas, with river views, cultural venues, and a steady stream of iconic sights.
Charming neighborhood of colorful houses, independent shops, and photogenic streets that remain highly popular with visitors.
Battered white fish with thick-cut chips, traditionally served with mushy peas and tartar sauce. A classic British comfort food strongly associated with London pubs and chippies.
A traditional East London dish of minced meat pie served with mashed potatoes and parsley liquor. It is one of the city’s most distinctive working-class foods.
A hearty plate of eggs, sausages, bacon, beans, mushrooms, tomatoes, and toast. It is a staple morning meal across London and the wider UK.
A stylish, very popular restaurant inspired by Bombay cafe culture, known for its house black daal, bacon naan roll, and lively atmosphere.
An influential, established restaurant celebrated for nose-to-tail British cooking, simple ingredients, and iconic dishes such as roast bone marrow.
London’s oldest restaurant, famous for classic British dishes, game, pies, and traditional desserts in an elegant historic setting.
London is costly by UK standards. Hotels, transport, and dining add up quickly, though budget eats and free museums help control costs.
Service charge of 12.5% is often added in restaurants; if not, tip 10-12%. No tip needed for pubs at the bar. Round up taxi fares or add about 10% for good service.
Official public transport app
London Waterloo, London -> Charing Cross, London
Find answers to the most common questions about traveling from Porthmadog to London by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at London, this guide helps you travel smarter and with confidence.

Most Porthmadog to London trains use the Porthmadog to London Euston station pair, with some services arriving at Heathrow Terminals 2 & 3. Use this guide to compare Porthmadog and London train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Porthmadog has practical services for this route, including Parking, Dining, Accessibility, and Lost and Found Office.
Food and drink options are available at Porthmadog.
Lost and found is available at the station.
Available at Porthmadog: Parking.
Accessibility facilities are available at Porthmadog: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Category B1. Step free access to Platform 1 (to Machynlleth from High Street and an end of platform ramp. Step free access to Platform 2. Access between both platforms is via the level crossing, Accessible car park equipment: Wheelchair users can use car park equipment at this station unaided, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.
London Euston has practical services for this route, including Wifi, Lockers, Shopping, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental, and Information Desk.
Food options include: Burger King, Caffè Nero, Nando's, The Signal Box, Delice de France, Tortilla, Starbucks, AMT Coffee, Upper Crust, Camden Food Co., & many more
Free public Wi-Fi available. ATMs are located in various points in the station.
The ticket office is open Mon - Fri: 06:00 - 00:00, Sat: 06:00 - 23:00, Sun: 07:00 - 00:00. Information desks are located near the center of the station's main concourse.
Luggage storage is excess Baggage Co luggage storage is located near the entrance to Platform 16 and is open daily from 08:00 to 21:00. Lost and found is available at the station.
Available at London Euston: Taxis, WC.
Available at London Euston: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at London Euston: Station is fully accessible, and passengers can request assistance at the mobility assistance reception desk.
Nearby hotels include Hilton London Euston, The Wesley Euston Hotel, Travelodge London Central Euston.
Heathrow Terminals 2 & 3 is 23 km from London city centre. Public transport options include:
Heathrow Terminals 2 & 3 has practical services for this route, including Wifi, Shopping, Parking, ATM, Accessibility, WC, Lost and Found Office, and Ticket Office.
Wi-Fi is available at Heathrow Terminals 2 & 3. ATMs are available at Heathrow Terminals 2 & 3.
Ticket office support is available at Heathrow Terminals 2 & 3.
Lost and found is available at the station.
Available at Heathrow Terminals 2 & 3: Parking, WC.
Accessibility facilities are available at Heathrow Terminals 2 & 3: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Level access to platforms, lifts to airport facilities. Ticket Office is step free. Wheelchair users can board trains with ease as the platforms are level with the trains, Accessible ticket machines: There are accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: No, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
London Marylebone is 3 km from London city centre. Public transport options include:
London Marylebone has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental, and Information Desk.
Food and drink options are available at London Marylebone.
Wi-Fi is available at London Marylebone. ATMs are available at London Marylebone.
Ticket office support is available at London Marylebone. Information desks are information available from staff: Yes - from information point, Helpline Contact: 03456 005 165 (Option 3 > Option 3), Passenger Information Systems: Departure screens, Announcements, Arrival screens.
Lost and found is available at the station.
Available at London Marylebone: Parking, WC.
Available at London Marylebone: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at London Marylebone: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step Free Access Category A. Step Free access to all platforms, Accessible taxis: If you would like us to assist you in booking an accessible taxi for your onward journey please contact 03456 005 165, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All ticket machines at this station are accessible with adjustable height displays, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: Yes.
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