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

SWISS, Virgin Atlantic, and KLM are the most popular carriers operating from London City to Seattle/Tacoma Intl

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

Prices for flights from London City Airport to Seattle/Tacoma Intl Airport were last updated today.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London City Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£361 Cheap Flights from London City Airport to Seattle in 2026

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Find the cheapest flights from London City Airport to Seattle

Round-trip

One-way

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Cheap return flights

Enter your travel dates to find the best prices.

09:20 - 21:12

LCY

SEA

19h 52m

2 stops

13:17 - 17:05

SEA

LCY

19h 48m

2 stops

£390SWISS

Fri, 30 Jan - Wed, 4 Feb

09:20 - 22:43

LCY

SEA

21h 23m

2 stops

12:35 - 17:05

SEA

LCY

20h 30m

2 stops

£391SWISS

Fri, 30 Jan - Tue, 3 Feb

09:15 - 22:43

LCY

SEA

21h 28m

2 stops

12:35 - 17:05

SEA

LCY

20h 30m

2 stops

£401SWISS

Mon, 26 Jan - Mon, 9 Feb

09:15 - 21:12

LCY

SEA

19h 57m

2 stops

12:35 - 17:05

SEA

LCY

20h 30m

2 stops

£402SWISS

Mon, 26 Jan - Mon, 9 Feb

09:55 - 12:10

LCY

SEA

34h 15m

1 stop

14:00 - 17:40

SEA

LCY

19h 40m

1 stop

£412Lufthansa

Fri, 13 Feb - Thu, 19 Feb

09:20 - 21:12

LCY

SEA

19h 52m

2 stops

12:35 - 17:05

SEA

LCY

20h 30m

2 stops

£415SWISS

Wed, 28 Jan - Tue, 3 Feb

09:20 - 21:12

LCY

SEA

19h 52m

2 stops

13:17 - 17:05

SEA

LCY

19h 48m

2 stops

£415SWISS

Wed, 28 Jan - Wed, 4 Feb

10:00 - 08:41

LCY

SEA

30h 41m

2 stops

15:05 - 17:20

SEA

LCY

18h 15m

1 stop

£420Virgin Atlantic

Mon, 26 Jan - Mon, 9 Feb

10:00 - 08:41

LCY

SEA

30h 41m

2 stops

15:05 - 16:35

SEA

LCY

17h 30m

1 stop

£421Virgin Atlantic

Mon, 26 Jan - Mon, 9 Feb

09:15 - 12:20

LCY

SEA

35h 05m

1 stop

14:10 - 17:55

SEA

LCY

19h 45m

1 stop

£424Lufthansa

Fri, 1 May - Tue, 19 May

KLM flights from London City Airport to Seattle

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

KLM

9 Apr

LCY09:20London City

15h 10m

1 stop

SEA16:30Seattle/Tacoma Intl

13 Apr

SEA13:45Seattle/Tacoma Intl

11h 45m

1 stop

LCY09:30London City

£515

KLM

9 Apr

LCY10:00London City

14h 30m

1 stop

SEA16:30Seattle/Tacoma Intl

13 Apr

SEA13:45Seattle/Tacoma Intl

11h 45m

1 stop

LCY09:30London City

£515

SWISS flights from London City Airport to Seattle

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

SWISS

30 Jan

LCY09:20London City

19h 52m

2 stops

SEA21:12Seattle/Tacoma Intl

3 Feb

SEA12:35Seattle/Tacoma Intl

20h 30m

2 stops

LCY17:05London City

£390

SWISS

26 Jan

LCY09:15London City

21h 28m

2 stops

SEA22:43Seattle/Tacoma Intl

9 Feb

SEA12:35Seattle/Tacoma Intl

20h 30m

2 stops

LCY17:05London City

£401

SWISS

28 Jan

LCY09:20London City

19h 52m

2 stops

SEA21:12Seattle/Tacoma Intl

4 Feb

SEA13:17Seattle/Tacoma Intl

19h 48m

2 stops

LCY17:05London City

£415

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 30/1

09:20-21:12

2 stops19h 52m

Seattle/Tacoma Intl

Wed 4/2

13:17-17:05

2 stops19h 48m

£390

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 30/1

09:20-22:43

2 stops21h 23m

Seattle/Tacoma Intl

Tue 3/2

12:35-17:05

2 stops20h 30m

£391

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 26/1

09:15-22:43

2 stops21h 28m

Seattle/Tacoma Intl

Mon 9/2

12:35-17:05

2 stops20h 30m

£401

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 26/1

09:15-21:12

2 stops19h 57m

Seattle/Tacoma Intl

Mon 9/2

12:35-17:05

2 stops20h 30m

£402

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 13/2

09:55-12:10

1 stop34h 15m

Seattle/Tacoma Intl

Thu 19/2

14:00-17:40

1 stop19h 40m

£412

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 28/1

09:20-21:12

2 stops19h 52m

Seattle/Tacoma Intl

Tue 3/2

12:35-17:05

2 stops20h 30m

£415

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 28/1

09:20-21:12

2 stops19h 52m

Seattle/Tacoma Intl

Wed 4/2

13:17-17:05

2 stops19h 48m

£415

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 26/1

10:00-08:41

2 stops30h 41m

Seattle/Tacoma Intl

Mon 9/2

15:05-17:20

1 stop18h 15m

£420

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 26/1

10:00-08:41

2 stops30h 41m

Seattle/Tacoma Intl

Mon 9/2

15:05-16:35

1 stop17h 30m

£421

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 1/5

09:15-12:20

1 stop35h 05m

Seattle/Tacoma Intl

Tue 19/5

14:10-17:55

1 stop19h 45m

£424

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 London City Airport to Seattle

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

Prices

Airlines

What is the cheapest day to depart on your flight to Seattle?

According to our data, Wednesday is the cheapest day to fly to Seattle from London City Airport. The lowest ticket price found for a Wednesday departure recently was £585. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Sunday is £655.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from London City Airport to Seattle at midday for as low as £610. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive, with an average ticket price of £624.

When to book flights from London City Airport to Seattle

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

Estimated return price

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

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

Fastest flight time	13h 10m
Direct flights	None

The fastest flight from London City Airport to Seattle takes 13h 10m

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

Search flight deals

How far is London City to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 4785.6 mi away from London City. 13h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from London City Airport to Seattle/Tacoma Intl Airport?
Prices for flights from London City Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from London City Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London City Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Fife

SeaTac

Tukwila

Why use momondo?

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

It is quick and easy to find London to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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

Flights from London to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 Seattle from London.

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

Price alerts on flights to Seattle from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.