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

SWISS is the most popular carrier 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.

$505 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 am - 7:20 pm

LCY

SEA

18h 05m

2 stops

2:10 pm - 5:55 pm

SEA

LCY

19h 45m

1 stop

$791Lufthansa

Tue, Apr 14 - Tue, Apr 21

9:15 am - 11:27 pm

LCY

SEA

22h 12m

2 stops

1:21 pm - 5:30 pm

SEA

LCY

20h 09m

2 stops

$801SWISS

Wed, Apr 29 - Thu, May 7

10:00 am - 4:30 pm

LCY

SEA

14h 30m

1 stop

5:35 pm - 6:30 pm

SEA

LCY

16h 55m

1 stop

$823Virgin Atlantic

Mon, Apr 13 - Mon, Apr 20

9:20 am - 4:24 pm

LCY

SEA

15h 04m

1 stop

1:55 pm - 9:30 am

SEA

LCY

11h 35m

1 stop

$825KLM

Thu, Jun 18 - Wed, Jun 24

9:15 am - 6:32 pm

LCY

SEA

17h 17m

2 stops

4:35 pm - 5:30 pm

SEA

LCY

16h 55m

1 stop

$828SWISS

Wed, Sep 9 - Mon, Sep 14

9:15 am - 11:27 pm

LCY

SEA

22h 12m

2 stops

1:21 pm - 5:30 pm

SEA

LCY

20h 09m

2 stops

$830SWISS

Mon, Apr 20 - Mon, May 4

9:15 am - 2:40 pm

LCY

SEA

13h 25m

1 stop

1:19 pm - 5:25 pm

SEA

LCY

20h 06m

2 stops

$831SWISS

Mon, Sep 14 - Tue, Sep 22

9:15 am - 8:43 pm

LCY

SEA

19h 28m

2 stops

4:35 pm - 5:30 pm

SEA

LCY

16h 55m

1 stop

$834SWISS

Tue, Sep 8 - Mon, Sep 14

9:15 am - 10:47 pm

LCY

SEA

21h 32m

2 stops

10:30 am - 6:40 pm

SEA

LCY

24h 10m

2 stops

$836SWISS

Tue, May 5 - Tue, May 12

9:15 am - 7:20 pm

LCY

SEA

18h 05m

2 stops

2:10 pm - 5:55 pm

SEA

LCY

19h 45m

1 stop

$837Lufthansa

Tue, Apr 14 - Tue, Apr 21

KLM flights from London City Airport to Seattle

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

KLM

Jun 18

LCY9:20 amLondon City

15h 04m

1 stop

SEA4:24 pmSeattle/Tacoma Intl

Jun 24

SEA1:55 pmSeattle/Tacoma Intl

11h 35m

1 stop

LCY9:30 amLondon City

$825

KLM

Apr 14

LCY10:00 amLondon City

14h 30m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

Apr 21

SEA1:45 pmSeattle/Tacoma Intl

11h 45m

1 stop

LCY9:30 amLondon City

$838

KLM

Apr 16

LCY10:00 amLondon City

14h 30m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

Apr 23

SEA1:45 pmSeattle/Tacoma Intl

11h 45m

1 stop

LCY9:30 amLondon City

$847

SWISS flights from London City Airport to Seattle

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

SWISS

Sep 9

LCY9:15 amLondon City

17h 17m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Sep 14

SEA4:35 pmSeattle/Tacoma Intl

16h 55m

1 stop

LCY5:30 pmLondon City

$828

SWISS

Apr 20

LCY9:15 amLondon City

22h 12m

2 stops

SEA11:27 pmSeattle/Tacoma Intl

May 4

SEA1:21 pmSeattle/Tacoma Intl

20h 09m

2 stops

LCY5:30 pmLondon City

$830

SWISS

Sep 9

LCY9:15 amLondon City

17h 17m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Sep 24

SEA2:52 pmSeattle/Tacoma Intl

18h 38m

2 stops

LCY5:30 pmLondon City

$831

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

Tue 4/14

9:15 am-7:20 pm

2 stops18h 05m

Seattle/Tacoma Intl

Tue 4/21

2:10 pm-5:55 pm

1 stop19h 45m

$791

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 4/29

9:15 am-11:27 pm

2 stops22h 12m

Seattle/Tacoma Intl

Thu 5/7

1:21 pm-5:30 pm

2 stops20h 09m

$801

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 4/13

10:00 am-4:30 pm

1 stop14h 30m

Seattle/Tacoma Intl

Mon 4/20

5:35 pm-6:30 pm

1 stop16h 55m

$823

Quickest round-trip

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 6/18

9:20 am-4:24 pm

1 stop15h 04m

Seattle/Tacoma Intl

Wed 6/24

1:55 pm-9:30 am

1 stop11h 35m

$825

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 9/9

9:15 am-6:32 pm

2 stops17h 17m

Seattle/Tacoma Intl

Mon 9/14

4:35 pm-5:30 pm

1 stop16h 55m

$828

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 4/20

9:15 am-11:27 pm

2 stops22h 12m

Seattle/Tacoma Intl

Mon 5/4

1:21 pm-5:30 pm

2 stops20h 09m

$830

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 9/14

9:15 am-2:40 pm

1 stop13h 25m

Seattle/Tacoma Intl

Tue 9/22

1:19 pm-5:25 pm

2 stops20h 06m

$831

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 9/8

9:15 am-8:43 pm

2 stops19h 28m

Seattle/Tacoma Intl

Mon 9/14

4:35 pm-5:30 pm

1 stop16h 55m

$834

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 5/5

9:15 am-10:47 pm

2 stops21h 32m

Seattle/Tacoma Intl

Tue 5/12

10:30 am-6:40 pm

2 stops24h 10m

$836

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 4/14

9:15 am-7:20 pm

2 stops18h 05m

Seattle/Tacoma Intl

Tue 4/21

2:10 pm-5:55 pm

1 stop19h 45m

$837

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $774. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday 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 $1,046.

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

Flying to Seattle from London City Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $834 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $867. 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	13h 25m
Direct flights	None

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

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 13h 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

Kent

Redmond

Marysville

Puyallup

Cle Elum

Lakewood

Tukwila

Federal Way

Fife

Westport

Centralia

Kirkland

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.