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

British Airways and SWISS 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.

$522 Cheap Flights from London City Airport to Seattle in 2026

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.

9:15 am - 6:32 pm

LCY

SEA

17h 17m

2 stops

3:27 pm - 5:05 pm

SEA

LCY

17h 38m

2 stops

$641SWISS

Wed, Sep 30 - Mon, Nov 9

8:15 pm - 4:38 pm

LCY

SEA

28h 23m

2 stops

9:53 am - 9:30 am

SEA

LCY

15h 37m

2 stops

$656Virgin Atlantic

Sun, Jul 26 - Fri, Aug 7

6:45 am - 5:10 pm

LCY

SEA

18h 25m

1 stop

7:10 pm - 8:45 pm

SEA

LCY

17h 35m

1 stop

$677British Airways

Thu, Oct 15 - Mon, Oct 19

9:15 am - 8:43 pm

LCY

SEA

19h 28m

2 stops

7:00 am - 8:40 am

SEA

LCY

17h 40m

2 stops

$682SWISS

Wed, Aug 12 - Tue, Sep 22

9:20 am - 4:35 pm

LCY

SEA

15h 15m

1 stop

1:45 pm - 9:30 am

SEA

LCY

11h 45m

1 stop

$700KLM

Wed, Sep 23 - Wed, Oct 14

10:00 am - 10:10 pm

LCY

SEA

20h 10m

2 stops

5:45 pm - 4:40 pm

SEA

LCY

14h 55m

1 stop

$702Virgin Atlantic

Sat, Sep 26 - Thu, Oct 22

10:00 am - 10:10 pm

LCY

SEA

20h 10m

2 stops

5:45 pm - 4:40 pm

SEA

LCY

14h 55m

1 stop

$704Virgin Atlantic

Sat, Sep 26 - Thu, Oct 22

9:20 am - 4:20 pm

LCY

SEA

15h 00m

1 stop

1:45 pm - 9:30 am

SEA

LCY

11h 45m

1 stop

$705KLM

Sat, Jul 11 - Fri, Oct 16

9:20 am - 8:21 pm

LCY

SEA

19h 01m

2 stops

1:45 pm - 9:30 am

SEA

LCY

11h 45m

1 stop

$706Virgin Atlantic

Wed, Sep 23 - Wed, Oct 14

10:00 am - 4:35 pm

LCY

SEA

14h 35m

1 stop

5:45 pm - 4:40 pm

SEA

LCY

14h 55m

1 stop

$707Virgin Atlantic

Mon, Sep 14 - Mon, Sep 21

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British Airways flights from London City Airport to Seattle

Our best British Airways deals on London City Airport to Seattle flight tickets

British Airways

Oct 15

LCY6:45 amLondon City

18h 25m

1 stop

SEA5:10 pmSeattle/Tacoma Intl

Oct 19

SEA7:10 pmSeattle/Tacoma Intl

17h 35m

1 stop

LCY8:45 pmLondon City

$677

British Airways

Oct 15

LCY6:45 amLondon City

18h 25m

1 stop

SEA5:10 pmSeattle/Tacoma Intl

Oct 19

SEA7:10 pmSeattle/Tacoma Intl

17h 35m

1 stop

LCY8:45 pmLondon City

$678

KLM flights from London City Airport to Seattle

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

KLM

Jul 2

LCY10:00 amLondon City

14h 20m

1 stop

SEA4:20 pmSeattle/Tacoma Intl

Jul 12

SEA1:45 pmSeattle/Tacoma Intl

11h 45m

1 stop

LCY9:30 amLondon City

$660

KLM

Jun 29

LCY10:00 amLondon City

14h 24m

1 stop

SEA4:24 pmSeattle/Tacoma Intl

Jul 12

SEA1:45 pmSeattle/Tacoma Intl

11h 45m

1 stop

LCY9:30 amLondon City

$665

KLM

Jul 3

LCY10:00 amLondon City

14h 20m

1 stop

SEA4:20 pmSeattle/Tacoma Intl

Jul 10

SEA9:30 amSeattle/Tacoma Intl

15h 20m

2 stops

LCY8:50 amLondon City

$677

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

Wed 9/30

9:15 am-6:32 pm

2 stops17h 17m

Seattle/Tacoma Intl

Mon 11/9

3:27 pm-5:05 pm

2 stops17h 38m

$641

LondonSeattle

LCY - SEA

LCYSEA

London City

Sun 7/26

8:15 pm-4:38 pm

2 stops28h 23m

Seattle/Tacoma Intl

Fri 8/7

9:53 am-9:30 am

2 stops15h 37m

$656

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 10/15

6:45 am-5:10 pm

1 stop18h 25m

Seattle/Tacoma Intl

Mon 10/19

7:10 pm-8:45 pm

1 stop17h 35m

$677

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 8/12

9:15 am-8:43 pm

2 stops19h 28m

Seattle/Tacoma Intl

Tue 9/22

7:00 am-8:40 am

2 stops17h 40m

$682

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 9/23

9:20 am-4:35 pm

1 stop15h 15m

Seattle/Tacoma Intl

Wed 10/14

1:45 pm-9:30 am

1 stop11h 45m

$700

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 9/26

10:00 am-10:10 pm

2 stops20h 10m

Seattle/Tacoma Intl

Thu 10/22

5:45 pm-4:40 pm

1 stop14h 55m

$702

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 9/26

10:00 am-10:10 pm

2 stops20h 10m

Seattle/Tacoma Intl

Thu 10/22

5:45 pm-4:40 pm

1 stop14h 55m

$704

Quickest round-trip

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 7/11

9:20 am-4:20 pm

1 stop15h 00m

Seattle/Tacoma Intl

Fri 10/16

1:45 pm-9:30 am

1 stop11h 45m

$705

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 9/23

9:20 am-8:21 pm

2 stops19h 01m

Seattle/Tacoma Intl

Wed 10/14

1:45 pm-9:30 am

1 stop11h 45m

$706

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 9/14

10:00 am-4:35 pm

1 stop14h 35m

Seattle/Tacoma Intl

Mon 9/21

5:45 pm-4:40 pm

1 stop14h 55m

$707

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 $849. 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 $853 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $909. Departure times in the afternoon 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	12h 25m
Direct flights	None

The fastest flight from London City Airport to Seattle takes 12h 25m

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 12h 25m.
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

Lakewood

Puyallup

Tukwila

Cle Elum

Federal Way

Fife

Marysville

Centralia

Kirkland

Shoreline

Westport

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.