Question 1

What is the cheapest airline to fly from London to Seattle round-trip?

Accepted Answer

Icelandair, at £471, was found to be the cheapest airline from London to Seattle.. Icelandair is priced at 15% lower than the current average price of a flight leaving 3 months from now.

Question 2

How recently were the London to Seattle flight deals updated?

Accepted Answer

The London to Seattle flight deals you see on this page were last updated on 17/6.

Question 3

How far ahead should I book a flight from London to Seattle?

Accepted Answer

Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 4

What is the cheapest month to book a flight from London to Seattle?

Accepted Answer

Currently, December is the cheapest month in which you can book a flight from London to Seattle (average of £576). Flying from London to Seattle in July is currently the most expensive (average of £823). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from London to Seattle?

Accepted Answer

Travellers seeking maximum savings on their London to Seattle flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Question 8

What are the most popular routes from London to Seattle?

Accepted Answer

When deciding which route to take from London to Seattle consider London Heathrow - Seattle/Tacoma Intl, London Gatwick - Seattle/Tacoma Intl or London City - Seattle/Tacoma Intl as they are the most popular.

Question 9

What are the cheapest flights from London to Seattle?

Accepted Answer

On average you can expect to pay £1,791 for a flight from London to Seattle. The cheapest flight overall is £498 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £471.

Question 10

What are the most reliable airlines from London to Seattle?

Accepted Answer

Consider American Airlines (68%), Aer Lingus (68%) or Finnair (68%) when booking your flight. These represent the most reliable airlines when flying from London to Seattle.

Question 11

What are the most popular airlines that fly from London to Seattle?

Accepted Answer

Before booking your flight from London to Seattle check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

Question 12

Can I find flights from London to Seattle for under £400 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from London to Seattle for under £400. The cheapest flight booked recently is on Multiple Airlines for just £396, but on average you can expect to pay £467.

Question 13

Are there nonstop flights from London to Seattle for under £600 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from London to Seattle under £600. A good price for a nonstop flight from London to Seattle is less than £600.

Question 14

Are there last-minute flights available from London to Seattle for under £600?

Accepted Answer

There are currently 20+ open flights from London to Seattle within the next 7 days for less than £600.

Question 15

What is the cheapest day to fly round-trip from London to Seattle?

Accepted Answer

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 14% on the overall cost on flights from London to Seattle.

Question 16

How far in advance should I book a flight from London to Seattle?

Accepted Answer

Travelers have found it’s best to book a flight 44 days in advance to save up to 37% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Seattle 1-2 weeks in advance for as low as £558, or £729 for flights within the next 24 hours.

Question 17

What is the cheapest month to fly from London to Seattle?

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Seattle. Flights to Seattle from London in November are about £558 on average during November, but can be found for as low as £301.

Question 18

What is the cheapest time of day to fly from LON to SEA?

Accepted Answer

Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from London to Seattle by exploring options for tickets in the evening.

Question 19

What airport do you fly into for flights to Seattle from London?

Accepted Answer

Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from London. Booking flights from London to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 21 daily inbound flights from London from 14 different airlines.

Question 20

Accepted Answer

One of the most popular airlines travelling from London to Seattle is Lufthansa. Flights from Lufthansa travelling this route typically cost £650.98 RT. This price is typically 79% cheaper than other airlines that offer London to Seattle flights. When booking this route, the cheapest RT price found was £323. The most popular departure airport in London when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London to Seattle, Lufthansa flights are 7% more popular than any other airline flying that same route.

Question 21

Accepted Answer

One of the most popular airlines travelling from London to Seattle is KLM. Flights on this route from KLM typically cost £780.47 RT, a price that is 67% cheaper than the average London to Seattle flight. The cheapest flight found was £560 RT. The most popular departure airport in London when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London to Seattle, KLM flights are 4% more popular than any other airline flying that same route.

Question 22

What does LHR to SEA mean?

Accepted Answer

London Heathrow Airport is LHR and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

Question 23

Can I find deals for flights from London to Seattle that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your London to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 24

Can I find deals on flights from London to Seattle with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter London to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 25

Can I find deals for flights from London to Seattle that include hotel bookings?

Accepted Answer

Yes. In addition to deals on London to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 26

How can I find direct flights from London to Seattle?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Seattle.

Question 27

Can I find deals for business class flights from London to Seattle?

Accepted Answer

Yes. Cheapflights offers flight deals from London to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 28

Can I find deals for flights from London to Seattle that allow pets onboard?

Accepted Answer

Many airlines flying from London to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 29

Can I find deals on last-minute flights from London to Seattle?

Accepted Answer

Yes, you can often find last-minute deals on London to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 30

How does Cheapflights help users find flights from London to Seattle?

Accepted Answer

Cheapflights makes it easy to find London to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 31

Why should you use Cheapflights to find cheap flight tickets from London to Seattle?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from London to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 32

Can Cheapflights find flights from London to Seattle with no change fees?

Accepted Answer

Certainly. Search results for flights to Seattle from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 33

Can Cheapflights notify me if prices for flights from London to Seattle become cheaper?

Accepted Answer

Yes, Cheapflights offers price alerts on London to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Popular in	July
Cheapest in	November
Round-trip from	£454
One-way from	£192

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£254	Average£513	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
British Airways	Cheapest£339	Average£528	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Icelandair	Cheapest£391	Average£557	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£395	Average£615	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
American Airlines	Cheapest£428	Average£589	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	Cheapest£430	Average£509	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	Cheapest£433	Average£573	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£437	Average£510	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£442	Average£615	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Finnair	Cheapest£446	Average£584	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

1%of flight departures	Early morningMidnight to 6 am
55%of flight departures	Morning6 am to noon
44%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

Monday	20daily flights
Tuesday	24daily flights
Wednesday	20daily flights
Thursday	20daily flights
Friday	20daily flights
Saturday	25daily flights
Sunday	20daily flights

Cheap flights from London to Seattle from £192

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from London to Seattle/Tacoma Intl are usually found in November or February, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from London to Seattle

Popular in

Cheapest in

Round-trip from

One-way from

What is the cheapest day to fly round-trip from London to Seattle?

How far in advance should I book a flight from London to Seattle?

What is the cheapest month to fly from London to Seattle?

What is the cheapest time of day to fly from LON to SEA?

Cheap Lufthansa flights from London to Seattle

Check out some of the cheapest Lufthansa flights we've come across from London to Seattle. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap KLM flights from London to Seattle

Explore cheap flight options specifically provided by KLM for the route between London and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 17 June 2024.

Browse through some of the cheapest KLM flights travelling from London to Seattle. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap London to Seattle flights in June & July 2024

Find cheap flight options from London to Seattle specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 976,051 searches. Prices were last updated on 17 June 2024.

These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.

London to Seattle 2024 flight deals

Discover exclusive flight deals for travel between London and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 17 June 2024.

These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.

Direct flights to Seattle from London

If you're seeking options on non-stop flights from London to Seattle, check out these fares. Those looking to potentially save on 1 or 2-stop flights from London to Seattle should utilise the search form at the top of the page.

London to Seattle flights leaving soon

Consider one of these great deals we found on last-minute flights from London to Seattle. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Seattle from London

Take a look at some of the one-way flights we've detected from London to Seattle. Users can also find round-trip London to Seattle flights by using the search form above.

Find flights from London to Seattle within your budget

How far ahead should I book a flight from London to Seattle?

Use this chart to determine the optimal time to book a return flight from London to Seattle. Price data was last updated on 14 June 2024.

Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from London to Seattle?

Use this chart to determine the cheapest time to fly return from London to Seattle. Price data was last updated on 16 June 2024.

Best time to book a flight from London to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from London with our price prediction graph.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from London to Seattle, such as Lufthansa, KLM and Air Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from London?

Can I find flights from London to Seattle for under £400 on Cheapflights?

Are there nonstop flights from London to Seattle for under £600 on Cheapflights?

Are there last-minute flights available from London to Seattle for under £600?

What is the cheapest airline to fly from London to Seattle round-trip?

What are the most popular routes from London to Seattle?

What are the most reliable airlines from London to Seattle?

What are the cheapest flights from London to Seattle?

What does LHR to SEA mean?

Can I find deals for flights from London to Seattle that include extra baggage allowance?

Can I find deals on flights from London to Seattle with specific airlines?

Can I find deals for flights from London to Seattle that include hotel bookings?

How can I find direct flights from London to Seattle?

Can I find deals for business class flights from London to Seattle?

Can I find deals for flights from London to Seattle that allow pets onboard?

Can I find deals on last-minute flights from London to Seattle?

How recently were the London to Seattle flight deals updated?

What are the most popular airlines that fly from London to Seattle?

What is the cheapest month to book a flight from London to Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to Seattle on these airlinesChoose from the following airlines for your flight from London to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 17 June 2024.

Choose from the following airlines for your flight from London to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 17 June 2024.

Top 10 airlines flying from London to Seattle

Popular flight searches

Check out other popular destinations found by fellow travellers in 2024

Search flights from London to Seattle by cabin class

Find flights from London to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from London to Seattle

Find hourly flight availability from London to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 June 2024.

Weekly flight availability from London to Seattle

Explore weekly flight availability from London to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 June 2024.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Seattle?

Fly from London to Seattle on these airlines
Choose from the following airlines for your flight from London to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 17 June 2024.