Seattle to London Flights on Aer Lingus from

Book Seattle to London flight deals*

$697.13
Displaying fares for November-2024
05

Tu

NOV

06

We

07

Th

08

Fr

09

Sa

10

Su

11

Mo

12

Tu

13

We

14

Th

15

Fr

16

Sa

17

Su

18

Mo

19

Tu

20

We

21

Th

22

Fr

23

Sa

24

Su

25

Mo

26

Tu

27

We

28

Th

29

Fr

30

Sa

01

Su

DEC

02

Mo

03

Tu

04

We

Range$697.13-$2,258.08
Aer Lingus Plane Image

Cheap Flights from Seattle to London

Aer Lingus offers flights to London with a fast connection from Seattle. Attracting millions of visitors are year London is one of the most visited cities in Europe.

Heathrow Airport

Heathrow is the busiest airport in Europe and the second busiest in the world. It caters for tens of millions of passengers each year. The airport is located in West London, around 23km from the city centre.

Transport from Heathrow Airport

With great transport services running frequently it's never been easier to get to the centre of London from Heathrow.

By Train: the best way to get to the city is via train. The station is located inside the airport and is close to both departures and arrivals. The easiest option is to catch the express train which runs every 15 minutes and takes around 40 mins.

By car/taxi: London's famous black taxis are available at each terminal. Rates will vary depending on traffic but you'll be able to see your fare as you travel.

By bus: With fares costing as low as £1.50 Heathrow is well connected to West London. But be aware you may need to take multiple buses to get to the centre of London.

What to do in London?

An urban sprawling capital with countless amazing things to see and do. London is very much a city that is full of life. Extremely diverse, London is split into 4 distinct areas; North, South, East and West with each section having it's own unique neighbourhoods and identity. It is best to focus prepare for what you want to see in London before arriving.

Must see attractions in London

Camden: located in North London, Camden is a well-known cultural centre for alternative artists and movements. Camden market sells unique artwork, second-hand books and vintage clothing. There is an amazing choice of international street food available and when you are finished you can stroll down to Regents Canal to relax.

Hyde Park: a lovely stroll through hide park is an excellent way to get away from the hustle and bustle of busy London streets. During peak season there will often be performers (and sometimes protesters) dotted around the park.

Shoreditch: located in East London, Shoreditch is one of the trendiest parts of London. You could easily spend a day just checking out the fashionable restaurants and bars. The nightlife is similar in to the day when hip clubs open for some of London's trendiest people.

"Platform 9 ¾": A quick fun stop is going to see "Platform 9 ¾", made famous by JK Rowlings Harry Potter. Located at one of the busiest locations in London, "Kings Cross", you can pose with the luggage trolley that is disappearing into the wall.

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

Book Seattle to London flight deals*

$
Book Seattle to London flight deals*
From
To
Fare Type
Dates
Price
FromSeattle (SEA)ToLondon (LHR)Roundtrip*
/
Economy
Sep 4 2025 - Sep 22 2025

From

$1,106.64*

Seen: 11 hrs ago

FromSeattle (SEA)ToLondon (LHR)Roundtrip*
/
Economy
Sep 4 2025 - Sep 21 2025

From

$1,106.64*

Seen: 13 hrs ago

FromSeattle (SEA)ToLondon (LHR)Roundtrip*
/
Economy
Jun 15 2025 - Jul 9 2025

From

$1,720.14*

Seen: 5 hrs ago

FromSeattle (SEA)ToLondon (LON)Roundtrip*
/
Economy
May 21 2025 - Jun 6 2025

From

$1,057.33*

Seen: 2 hrs ago

FromSeattle (SEA)ToLondon (LON)Roundtrip*
/
Economy
Jul 2 2025 - Jul 9 2025

From

$1,596.52*

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.