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

SWISS and British Airways 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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$556 Cheap Flights from London City Airport to Seattle in 2026

1 adult

0 bags

Find the cheapest flights from London City Airport to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:20 am - 4:35 pm

LCY

SEA

15h 15m

1 stop

1:50 pm - 9:30 am

SEA

LCY

11h 40m

1 stop

$817KLM

Mon, Sep 7 - Wed, Sep 16

9:20 am - 4:35 pm

LCY

SEA

15h 15m

1 stop

1:50 pm - 9:30 am

SEA

LCY

11h 40m

1 stop

$827Virgin Atlantic

Thu, Sep 3 - Fri, Sep 18

10:00 am - 4:35 pm

LCY

SEA

14h 35m

1 stop

1:50 pm - 9:30 am

SEA

LCY

11h 40m

1 stop

$828KLM

Mon, Sep 7 - Wed, Sep 16

9:20 am - 4:35 pm

LCY

SEA

15h 15m

1 stop

1:50 pm - 9:30 am

SEA

LCY

11h 40m

1 stop

$835Virgin Atlantic

Thu, Sep 3 - Fri, Sep 18

10:00 am - 4:39 pm

LCY

SEA

14h 39m

1 stop

9:30 am - 8:50 am

SEA

LCY

15h 20m

2 stops

$836KLM

Thu, Oct 8 - Thu, Oct 15

10:00 am - 4:30 pm

LCY

SEA

14h 30m

1 stop

5:45 pm - 4:40 pm

SEA

LCY

14h 55m

1 stop

$837Delta

Thu, May 28 - Wed, Jun 10

8:25 am - 4:30 pm

LCY

SEA

16h 05m

1 stop

5:45 pm - 4:40 pm

SEA

LCY

14h 55m

1 stop

$838Delta

Thu, May 28 - Wed, Jun 10

5:50 pm - 11:52 am

LCY

SEA

26h 02m

1 stop

7:20 am - 9:30 am

SEA

LCY

18h 10m

2 stops

$843Virgin Atlantic

Tue, Oct 13 - Tue, Oct 20

8:25 am - 4:30 pm

LCY

SEA

16h 05m

1 stop

5:30 am - 8:50 am

SEA

LCY

19h 20m

2 stops

$844Virgin Atlantic

Thu, May 28 - Thu, Jun 4

12:10 pm - 4:35 pm

LCY

SEA

12h 25m

1 stop

1:45 pm - 9:30 am

SEA

LCY

11h 45m

1 stop

$845KLM

Sat, Sep 26 - Thu, Oct 22

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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

KLM flights from London City Airport to Seattle

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

KLM

Sep 7

LCY9:20 amLondon City

15h 15m

1 stop

SEA4:35 pmSeattle/Tacoma Intl

Sep 16

SEA1:50 pmSeattle/Tacoma Intl

11h 40m

1 stop

LCY9:30 amLondon City

$817

KLM

Sep 7

LCY10:00 amLondon City

14h 35m

1 stop

SEA4:35 pmSeattle/Tacoma Intl

Sep 16

SEA1:50 pmSeattle/Tacoma Intl

11h 40m

1 stop

LCY9:30 amLondon City

$828

KLM

Oct 8

LCY10:00 amLondon City

14h 39m

1 stop

SEA4:39 pmSeattle/Tacoma Intl

Oct 15

SEA9:30 amSeattle/Tacoma Intl

15h 20m

2 stops

LCY8:50 amLondon City

$836

Delta flights from London City Airport to Seattle

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

Delta

May 28

LCY10:00 amLondon City

14h 30m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

Jun 10

SEA5:45 pmSeattle/Tacoma Intl

14h 55m

1 stop

LCY4:40 pmLondon City

$837

Delta

May 28

LCY8:25 amLondon City

16h 05m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

Jun 10

SEA5:45 pmSeattle/Tacoma Intl

14h 55m

1 stop

LCY4:40 pmLondon City

$838

Delta

Jun 1

LCY10:00 amLondon City

14h 24m

1 stop

SEA4:24 pmSeattle/Tacoma Intl

Jun 11

SEA5:45 pmSeattle/Tacoma Intl

14h 55m

1 stop

LCY4:40 pmLondon City

$846

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

Cheapest round-trip

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 9/7

9:20 am-4:35 pm

1 stop15h 15m

Seattle/Tacoma Intl

Wed 9/16

1:50 pm-9:30 am

1 stop11h 40m

$817

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 9/3

9:20 am-4:35 pm

1 stop15h 15m

Seattle/Tacoma Intl

Fri 9/18

1:50 pm-9:30 am

1 stop11h 40m

$827

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 9/7

10:00 am-4:35 pm

1 stop14h 35m

Seattle/Tacoma Intl

Wed 9/16

1:50 pm-9:30 am

1 stop11h 40m

$828

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 9/3

9:20 am-4:35 pm

1 stop15h 15m

Seattle/Tacoma Intl

Fri 9/18

1:50 pm-9:30 am

1 stop11h 40m

$835

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 10/8

10:00 am-4:39 pm

1 stop14h 39m

Seattle/Tacoma Intl

Thu 10/15

9:30 am-8:50 am

2 stops15h 20m

$836

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 5/28

10:00 am-4:30 pm

1 stop14h 30m

Seattle/Tacoma Intl

Wed 6/10

5:45 pm-4:40 pm

1 stop14h 55m

$837

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 5/28

8:25 am-4:30 pm

1 stop16h 05m

Seattle/Tacoma Intl

Wed 6/10

5:45 pm-4:40 pm

1 stop14h 55m

$838

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 10/13

5:50 pm-11:52 am

1 stop26h 02m

Seattle/Tacoma Intl

Tue 10/20

7:20 am-9:30 am

2 stops18h 10m

$843

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 5/28

8:25 am-4:30 pm

1 stop16h 05m

Seattle/Tacoma Intl

Thu 6/4

5:30 am-8:50 am

2 stops19h 20m

$844

Quickest round-trip

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 9/26

12:10 pm-4:35 pm

1 stop12h 25m

Seattle/Tacoma Intl

Thu 10/22

1:45 pm-9:30 am

1 stop11h 45m

$845

Flights are sorted by cheapest round-trip 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?

On average, the least expensive day to fly to Seattle from London City Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $822. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from London City Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $947.

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

Flying to Seattle from London City Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $855 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $908. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 round-trip 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	14h 10m
Direct flights	None

The fastest flight from London City Airport to Seattle takes 14h 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

Frequently asked questions about flying from London City Airport to Seattle

How far is London City to Seattle/Tacoma Intl by plane?
A flight from London City to Seattle/Tacoma Intl will travel around 4785.6 mi. In terms of flight time, this usually takes a little over 14h 10m.
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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Marysville

Puyallup

Tukwila

Lakewood

Cle Elum

Federal Way

Centralia

Fife

Shoreline

Westport

Tumwater

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Seattle for you.

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

Yes. momondo allows you to filter the results for London to Seattle flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Seattle.

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.