When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London City Airport?

Prices for flights from Seattle/Tacoma Intl Airport to London City Airport are refreshed on a daily basis.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to London City Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to London City Airport.

What documentation or ID do you need to fly to London City Airport?

The travel and health documents you'll need for your trip to London City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£342 Cheap Flights from Seattle to London City Airport in 2026

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:45 - 18:40

SEA

LCY

23h 55m

2 stops

09:15 - 23:24

LCY

SEA

22h 09m

2 stops

£668SWISS

Mon, 17 Aug - Wed, 19 Aug

13:45 - 09:30

SEA

LCY

11h 45m

1 stop

17:50 - 19:05

LCY

SEA

32h 15m

2 stops

£670KLM

Mon, 19 Oct - Wed, 28 Oct

15:33 - 12:35

SEA

LCY

37h 02m

2 stops

09:15 - 18:32

LCY

SEA

17h 17m

2 stops

£677SWISS

Mon, 17 Aug - Thu, 20 Aug

10:45 - 17:25

SEA

LCY

22h 40m

2 stops

09:15 - 18:59

LCY

SEA

41h 44m

2 stops

£681SWISS

Tue, 18 Aug - Thu, 20 Aug

13:50 - 09:30

SEA

LCY

11h 40m

1 stop

09:20 - 16:39

LCY

SEA

15h 19m

1 stop

£684KLM

Mon, 14 Sep - Wed, 21 Oct

13:45 - 18:30

SEA

LCY

20h 45m

1 stop

08:25 - 20:47

LCY

SEA

20h 22m

2 stops

£684Virgin Atlantic

Mon, 12 Oct - Wed, 21 Oct

13:50 - 18:30

SEA

LCY

20h 40m

1 stop

10:00 - 20:48

LCY

SEA

18h 48m

2 stops

£685Virgin Atlantic

Sun, 13 Sep - Thu, 17 Sep

05:20 - 08:50

SEA

LCY

19h 30m

2 stops

20:15 - 11:47

LCY

SEA

23h 32m

1 stop

£686Virgin Atlantic

Sun, 26 Jul - Tue, 22 Sep

05:10 - 07:15

SEA

LCY

18h 05m

2 stops

17:50 - 11:37

LCY

SEA

25h 47m

1 stop

£687Virgin Atlantic

Mon, 17 Aug - Tue, 25 Aug

13:19 - 17:25

SEA

LCY

20h 06m

2 stops

19:15 - 18:32

LCY

SEA

31h 17m

2 stops

£688SWISS

Tue, 15 Sep - Tue, 20 Oct

Lufthansa flights from Seattle to London City Airport

Our best Lufthansa deals on Seattle to London City Airport flight tickets

Lufthansa

11 May

SEA14:10Seattle/Tacoma Intl

19h 45m

1 stop

LCY17:55London City

13 May

LCY09:15London City

17h 15m

2 stops

SEA18:30Seattle/Tacoma Intl

£717

Lufthansa

4 Aug

SEA14:10Seattle/Tacoma Intl

19h 45m

1 stop

LCY17:55London City

24 Aug

LCY09:15London City

34h 40m

1 stop

SEA11:55Seattle/Tacoma Intl

£718

Lufthansa

1 Sept

SEA13:57Seattle/Tacoma Intl

19h 58m

2 stops

LCY17:55London City

17 Sept

LCY09:15London City

34h 40m

1 stop

SEA11:55Seattle/Tacoma Intl

£722

SWISS flights from Seattle to London City Airport

Our best SWISS deals on Seattle to London City Airport flight tickets

SWISS

17 Aug

SEA10:45Seattle/Tacoma Intl

23h 55m

2 stops

LCY18:40London City

19 Aug

LCY09:15London City

22h 09m

2 stops

SEA23:24Seattle/Tacoma Intl

£668

SWISS

17 Aug

SEA15:33Seattle/Tacoma Intl

37h 02m

2 stops

LCY12:35London City

20 Aug

LCY09:15London City

17h 17m

2 stops

SEA18:32Seattle/Tacoma Intl

£677

SWISS

18 Aug

SEA10:45Seattle/Tacoma Intl

22h 40m

2 stops

LCY17:25London City

20 Aug

LCY09:15London City

41h 44m

2 stops

SEA18:59Seattle/Tacoma Intl

£681

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 17/8

10:45-18:40

2 stops23h 55m

London City

Wed 19/8

09:15-23:24

2 stops22h 09m

£668

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 19/10

13:45-09:30

1 stop11h 45m

London City

Wed 28/10

17:50-19:05

2 stops32h 15m

£670

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 17/8

15:33-12:35

2 stops37h 02m

London City

Thu 20/8

09:15-18:32

2 stops17h 17m

£677

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 18/8

10:45-17:25

2 stops22h 40m

London City

Thu 20/8

09:15-18:59

2 stops41h 44m

£681

Fastest return journey

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 14/9

13:50-09:30

1 stop11h 40m

London City

Wed 21/10

09:20-16:39

1 stop15h 19m

£684

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 12/10

13:45-18:30

1 stop20h 45m

London City

Wed 21/10

08:25-20:47

2 stops20h 22m

£684

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 13/9

13:50-18:30

1 stop20h 40m

London City

Thu 17/9

10:00-20:48

2 stops18h 48m

£685

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 26/7

05:20-08:50

2 stops19h 30m

London City

Tue 22/9

20:15-11:47

1 stop23h 32m

£686

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 17/8

05:10-07:15

2 stops18h 05m

London City

Tue 25/8

17:50-11:37

1 stop25h 47m

£687

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 15/9

13:19-17:25

2 stops20h 06m

London City

Tue 20/10

19:15-18:32

2 stops31h 17m

£688

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to London City Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to London City?

Delta and SWISS are the most popular carriers operating from Seattle/Tacoma Intl to London City

When to book flights from Seattle to London City Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to London City Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Seattle to London City Airport (SEA to LCY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to London City Airport

Fastest flight time	11h 40m
Direct flights	None

The fastest flight from Seattle to London City Airport takes 11h 40m

There are no direct flights from Seattle to London City Airport. There are no popular flight routes from Seattle to London City Airport.

Search flight deals

Frequently asked questions about flying from Seattle to London City Airport

How far is Seattle/Tacoma Intl to London City by plane?
There are 4785.6 mi between Seattle/Tacoma Intl and London City. A reasonable flight in good conditions will take 11h 40m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London City Airport?
Prices for flights from Seattle/Tacoma Intl Airport to London City Airport are refreshed on a daily basis.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London City Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to London City Airport.
What documentation or ID do you need to fly to London City Airport?
The travel and health documents you'll need for your trip to London City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Eastbourne

Milton Keynes

Luton

Gatwick

Wembley

Slough

Maidstone

Ipswich

Southend-on-Sea

Canterbury

Ilford

Hayes

Guildford

Folkestone

Chelmsford

Dover

Chichester

Bedford

Harlow

Ramsgate

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Seattle.

Can I find flights from Seattle to London with flexible booking policies on momondo?

Yes. All flights to London from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Seattle.

I’m not ready to book a flight from Seattle to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Seattle and alert you when they change.