Book cheap flights from Seattle to London from £156

Have you been dreaming lately about setting off to your dream destination in United Kingdom? If you’ve been planning a trip away from Seattle, or if you're looking for inspiration and ideas to travel to London, in eDreams we’ve got you covered. We have amazing flight deals for your flight from Seattle to London!

Keep reading and find out everything you need to know before your trip, together with the best tips and tricks to find the best deals and to book your flight in the easiest and most comfortable way. Our essential information and expert tips will help ensure your travels in United Kingdom are as smooth as possible.

Choosing eDreams means selecting a travel companion that simplifies the art of trip planning. Get your booking today with Europe’s largest travel agency and let us help you prepare for your next adventure at the lowest price.

In eDreams, we always provide the best deals for your flight to London (LON) from Seattle (SEA). To make sure you secure the best prices, you can also follow these easy steps. Check them out and start saving money while still keeping the same level of comfort.

Here are five tips to help you find low-cost flights to London :

• Book early: although some travellers wait until the last minute to find potential discounts, we always recommend purchasing your flight tickets in advance. This will increase your chances of securing lower prices and avoiding higher costs later on.
• Compare all airlines: in eDreams, you can find a variety of airlines offering flights between Seattle and London. Once our search engine shows you the available options for this route, compare fares from both budget and traditional airlines. Being flexible with your travel dates can also help you find the best deals.
• Choose the cheapest days to make your booking: the most affordable days to find cheap flights from Seattle are typically between Tuesday and Thursday. Weekend flights and peak season travel usually come with higher prices, so consider midweek or off-season travel to save more.
• Explore city break deals: if you plan to stay in a hotel, check out our city break offers from Seattle. And if you plan to hire a car in United Kingdom, eDreams can offer great discounts on your total package.
• Take advantage of eDreams Prime deals: by becoming a member of eDreams Prime, you'll access great deals on flights, hotels, and car hire all year round, with the added benefit of travelling with more flexibility and peace of mind.

Airlines flying from Seattle airport to London airport

Through eDreams you can book regular flights on this route, and you’ll typically get access to various service types, from economy to premium, to suit different budgets and preferences. To further enhance your journey, consider also the following tips:

• Use noise-cancelling headphones: they can help create a more peaceful environment, which will make your flight more comfortable.
• Drink plenty of water: cabin air can be particularly dry, so make sure you stay hydrated throughout the flight.
• Choose your seat wisely: think about legroom and proximity to amenities onboard. For example, if you’re travelling with children, booking a seat near the lavatories might be a good idea.
• Stretch regularly: get up and move around to improve your leg circulation during the flight.

The duration of a flight from Seattle to London depends on factors like the specific flight path, weather, and any layovers. Typically, direct flights are quicker, while flights with stopovers may take more time. At eDreams, we provide up-to-date flight details, helping you find the best travel options. You can easily compare flight times from Seattle to London on our platform to ensure you have the most accurate and convenient information for your journey.

Airports in Seattle and London

Seattle aiport facilities

The Seattle airport offers a wide range of amenities to enjoy before your flight, from high-end shopping to gourmet dining. Grab some last-minute souvenirs, pick up a bestseller for the flight, work on your laptop using the free Wi-Fi, or indulge in a nice meal before you take off.

London airport facilities

After collecting your luggage at London airport, ensure you have an internet connection on your phone before leaving. If you need a local SIM card, it's easier to find a store at the airport, though it might be a bit pricier.

Besides this, check also your transportation options from London airport to your accommodation, whether it’s a taxi, public transport, or a pre-booked shuttle. London airport staff will be able to assist with the best options at the information desk.

Booking your flight through eDreams is simple. Just enter Seattle and London as your departure and destination cities, choose the dates of your trip, and search through the available options. Our search engine will find the best deals from thousands of routes and flight combinations.

We also offer a ‘Smart Choice’ option, by which we highlight the most competitive flights at the top of the search results. You can also apply filters to view only flights to London from your preferred airlines.

Changes to the price of your flights during your booking

Flight fares are set up using a complex pricing algorithm based on demand and seat availability. As a result, the cost of your flight may vary during your booking process. To secure the best price for your flight to London, make sure you book as soon as you find a flight ticket that suits your pocket.

eDreams Prime members discounts

As an eDreams Prime member, you can access exclusive deals and save hundreds on flights, hotels, and car hires, along with many other benefits. Join the world’s largest travel membership community and discover all the advantages of eDreams Prime.

Last-minute bookings with eDreams

eDreams also offers last-minute flights at competitive prices. While these may be more expensive, we provide a range of options to suit your needs. Keep in mind, though, that last-minute prices can be higher, particularly during peak travel season. Being flexible with your travel dates can increase your chances of finding better deals.

Checking in before your flight

Online check-in usually opens 24 to 48 hours before the departure time. Once your booking with eDreams is completed, we’ll email you one week before your day of departure with instructions on how to check in for your flight.

Best season to travel from Seattle to London

United Kingdom offers endless possibilities, from its rich gastronomy to its diverse culture and stunning nature. The best time to travel depends on your preferences and availability. Always consider the climate, peak tourist season, and the type of experience you’re seeking.

Expect larger crowds during peak season, but you'll also enjoy a lively atmosphere and more cultural and touristic offerings. Travelling off-season usually means fewer crowds, lower prices on flights and accommodations, and a more authentic glimpse into local life. While some outdoor activities may be limited due to the weather conditions, popular attractions will likely be less crowded, allowing for a more immersive experience.

London weather

The weather in London can change depending on the season, so it's a good idea to check the forecast before traveling from Seattle. Whether you encounter cooler or milder temperatures, being aware of the local climate will help you plan your trip and pack accordingly. Since weather can influence your experience and activities in London, staying informed will ensure you're prepared to make the most of your visit.

Explore the vibrant spirit of London with a variety of activities for every everyone to enjoy. From its iconic landmarks to its rich history, every traveller will find something to enjoy there.

Dive into the city's history and culture by visiting famous landmarks and museums, and indulge in United Kingdom's diverse cuisine. For those who prefer outdoor activities, visiting some of the stunning natural landscapes of London is a must. The city has something to offer for everyone, whether you’re travelling by yourself, as a couple, or with your family.

How many days you should plan to you visit London

To fully experience London, 3 to 7 days should give you enough time. With that amount of time at your disposal, you should be able to explore major attractions and soak in the city’s atmosphere without rushing. If you have more time, you can always dive deeper into the most authentic neighbourhoods, savour the culinary scene, and relax by walking around its pedestrian areas.

Car hire to move around United Kingdom

Hiring a car in London can be a great option, as it will give you the freedom to explore the regions beyond the metropolitan areas at your own pace. Tailor your itinerary to your schedule and budget, especially if you plan to stay in the country for more than a week.

Find the best flight deals on eDreams. Complete your booking by selecting your travel dates, choosing a hotel, and finding a great car hire deal. Don’t wait—book your cheap flight from Seattle to London today!

At eDreams, we provide all the information you need for more than 155,000 flight routes, 690 airlines, 2,100,000 hotels worldwide, and 40,000 destinations. Our wide range of holiday packages will help you save significantly on your next trip.

Don’t miss out on this opportunity to get a great deal for your next trip—book your flight now!