- Recommended
The Royal Welch Fusiliers Museum
Small local museum in the old courthouse, covering Caernarfon’s civic history, social life, and the story of the old gaol.
Take a flight from London to Caernarfon and enjoy the approximately 208 miles (335 km) long journey. Find schedules and pricing options for a convenient and affordable trip.
Distance 208 miles (335 km) |
High Season Apr - Jun |
Low Season Oct - Dec |
Busiest Day Fri |
Least Busy Day Thu |
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.
Discover the best of Caernarfon — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Caernarfon trip today.
Small local museum in the old courthouse, covering Caernarfon’s civic history, social life, and the story of the old gaol.
Gallery and museum space celebrating Welsh writer Sir Kyffin Williams through paintings, drawings, and changing displays.
Community arts venue and gallery in nearby Bangor with exhibitions, talks, and contemporary visual art in a public setting.
Attractive waterfront promenade by the Menai Strait, popular for walking, harbour views, and seeing the castle from the quay.
Historic shopping street inside the walls with colourful buildings, independent shops, and an authentic old-town atmosphere.
Central square and gathering place framed by historic buildings, often lively during markets, events, and daily town life.
Traditional Welsh soup of leeks, potatoes and lamb or beef stock. It is closely linked to Welsh home cooking and often served on St David’s Day.
Seaweed purée simmered for hours, traditionally served with oats and bacon. A classic Welsh coastal food with deep roots in north and west Wales.
Welsh rarebit is toasted bread topped with a savoury cheese and ale sauce. It is a beloved pub and café dish across Wales.
Stylish restaurant focused on seafood and contemporary British cooking, with castle views and a polished but welcoming feel.
Historic inn and restaurant serving hearty Welsh and British classics with a traditional pub atmosphere inside the walled town.
Well-known local café and deli for Welsh breakfasts, cakes and light lunches, with a casual atmosphere in the town centre.
Moderate for the UK. Hotels and dining are mid-priced, while local buses and castle entry keep sightseeing costs manageable.
Service is sometimes included. If not, tip 10-12.5% in restaurants for good service. Taxis are often rounded up. Tipping in cafes is optional.
Find answers to the most common questions about traveling from London to Caernarfon by flight. 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 flight, the cheapest option, or tips for making the most of your visit at Caernarfon, this guide helps you travel smarter and with confidence.

Here are some other resources that might have the information you need