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Cheap flights from London to Seattle

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London to Seattle Flights

Fly from London to Seattle with Aer Lingus and visit one of the US's coolest cities.

Flying to Seattle with Aer Lingus

Fly with Aer Lingus from London to Seattle and you can benefit from pre-clearance in Dublin or Shannon, so when you arrive you can collect your luggage and go. We have a range of luggage options to choose from when you book so you will have everything for a great holiday in Seattle no matter when you go. We also make flying safe and easy with online check in, contactless boarding and safety protocols to protect your health and wellbeing. Once on board your transatlantic flight, sit back, relax and enjoy our 4* service including a warm Irish welcome, in-flight entertainment and food and beverage service.

How do you find the cheapest flights from London to Seattle with Aer Lingus?

  1. Book your flights through our website
  2. Sign-up to the Aer Lingus newsletter for information on upcoming sales
  3. Collect Avos points by becoming an AerClub member
  4. Fly at less busy times or mid-week

What to see in Seattle?

Seattle must rank as one of America's hippest cities. There are so many reasons to visit this hub of creativity, enterprise, and amazing views. The list below is only the beginning:

Space Needle: Get a birds eye view of Seattle from the 'top house' of one of the most recognisable landmarks in the world. Built for the World's Fair in the 1960's the Space Needle offers panoramic views of the city and mountains beyond from over 500 feet up.

Pike Place Market: most famous as the home of the original Starbucks coffee, Pike Place Market is a large farmers market selling some of the freshest produce in the city. It is also home to some wonderful bars, restaurants, and a craft market, making it a must visit while in Seattle.

Museum of Pop Culture: From music to fashion to tattoos, this museum is anything but boring. Expect extensive exhibitions on everything from local legends Nirvana to science fiction with lots of interactivity to keep the whole family entertained.

Seattle Grunge Tour: if you are a fan of grunge music, do not miss out on a walking tour of some of the most iconic locations where your favourite musicians played, practiced, and lived.

How to track your Aer Lingus flights from London to Seattle?

Staying up to date with information about your flights with:

  1. Flight disruption information:
  2. Live Flight Information:

Book London to Seattle flight deals*

  1. London (LGW) to Seattle (SEA)


    Date: 29 Jan 2021-

    15 Feb 2021

    *Each way fare as part of a return trip including taxes and charges.

  2. London (LHR) to Seattle (SEA)


    Date: 23 Jul 2021-

    6 Aug 2021

    *Each way fare as part of a return trip including taxes and charges.


*Fares available for round trips within the last 48 hours and may not be currently available. Fares shown for travel to Dublin or Shannon may be Saver Fares, which is our most restrictive fare option. Additional baggage charges and fees for other optional services may apply. Other terms and conditions may apply.

Weather in Seattle

Monday overcast clouds
6°C 26 Oct 2020
Tuesday sky is clear
8°C 27 Oct 2020
Wednesday scattered clouds
10°C 28 Oct 2020
Thursday broken clouds
11°C 29 Oct 2020
Friday light rain
10°C 30 Oct 2020
Saturday overcast clouds
10°C 31 Oct 2020
Sunday broken clouds
11°C 1 Nov 2020
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