Cheap flights from Seattle (SEA) to London (LON)

Flight FAQs

From Seattle to London

Are flight prices decreasing from Seattle to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Seattle/Tacoma Intl to London have flexible cancellations due to COVID-19?

Delta, Virgin Atlantic, and British Airways are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

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

If you book a flight to London from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 5 flights from Seattle/Tacoma Intl to London per day from 19 different airlines.

Can I find flights from Seattle to London for under $700 on Cheapflights?

Yes, there are multiple flights from Seattle to London for under $700. The cheapest flight booked recently is on Multiple Airlines for just $603, but on average you can expect to pay $632.

Are there nonstop flights from Seattle to London for under $900 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to London under $900. A good price for a nonstop flight from Seattle to London is less than $883.

Are there last-minute flights available from Seattle to London for under $1,000?

There are currently 20+ open flights from Seattle to London within the next 7 days for less than $1,000.

Is Seattle weather warmer or cooler than London?

Expect the weather to be around 77 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in London is generally colder than in Seattle.

How long is the flight from Seattle to London?

There are many flights that can get you from Seattle to London in 12h 05m. Fly via Icelandair or Aer Lingus to get the fastest option. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Flying on Icelandair is currently your cheapest option to London, with prices starting at $625.

What are the cheapest airlines to fly from Seattle to London one-way?

The cheapest airlines for a one-way flight from Seattle to London are Turkish Airlines ($363) and WestJet ($364).