Aer Lingus Flights from Seattle to United Kingdom from $742.03*

Deals on flights from Seattle to United Kingdom*

$

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

Aer Lingus Plane Image

Book Seattle to United Kingdom flight deals*

Fly to the United Kingdom to experience vibrant cities and the quaint English countryside. Explore London and Manchester for luxury shopping and creative dining options. For art and culture, visit London's museums and galleries. To enjoy a quieter experience, take to the seaside near Bristol or explore the idyllic town of Bath.

Email Sign Up
Aer Lingus Newsletter
Sign Up and Save

Be first to receive current offers

Learn about new and exciting destinations

Get the latest travel news and more

Best Deals for Seattle to United Kingdom*

$
Best Deals for Seattle to United Kingdom*
From
To
Fare Type
Dates
Price
FromSeattle (SEA)ToEdinburgh (EDI)Roundtrip*
/
Economy
May 1 2025 - May 10 2025

From

$1,103.95*

Seen: 15 hrs ago

FromSeattle (SEA)ToGlasgow (GLA)Roundtrip*
/
Economy
Apr 20 2025 - May 4 2025

From

$1,190.07*

Seen: 13 hrs ago

FromSeattle (SEA)ToLondon (LON)Roundtrip*
/
Economy
Mar 30 2025 - Apr 12 2025

From

$872.29*

Seen: 20 hrs ago

FromSeattle (SEA)ToSouthampton (SOU)Roundtrip*
/
Economy
May 9 2025 - May 24 2025

From

$1,325.50*

Seen: 15 hrs ago

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.