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.

$536 Cheap Flights from London City Airport to Seattle in 2025/26

1 adult

0 bags

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

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 - 9:12 pm

LCY

SEA

19h 52m2 stops

12:35 pm - 5:05 pm

SEA

LCY

20h 30m2 stops

$722SWISS

mié., ene. 21 - mié., ene. 28

9:20 am - 9:12 pm

LCY

SEA

19h 52m2 stops

10:58 am - 12:55 pm

SEA

LCY

17h 57m2 stops

$723SWISS

mié., ene. 21 - mié., ene. 28

8:05 pm - 11:35 am

LCY

SEA

23h 30m1 stop

4:00 pm - 5:20 pm

SEA

LCY

18h 20m1 stop

$725Virgin Atlantic

jue., mar. 5 - mar., mar. 10

9:25 am - 6:36 pm

LCY

SEA

17h 11m2 stops

1:45 pm - 5:30 pm

SEA

LCY

19h 45m2 stops

$727SWISS

mar., may. 5 - mar., may. 19

6:55 pm - 11:35 am

LCY

SEA

24h 40m1 stop

4:00 pm - 5:20 pm

SEA

LCY

18h 20m1 stop

$737Virgin Atlantic

mié., mar. 4 - mar., mar. 17

9:15 am - 10:43 pm

LCY

SEA

21h 28m2 stops

10:55 am - 12:55 pm

SEA

LCY

19h 00m2 stops

$748SWISS

mar., mar. 3 - lun., mar. 16

9:25 am - 6:36 pm

LCY

SEA

17h 11m2 stops

2:10 pm - 6:35 pm

SEA

LCY

20h 25m1 stop

$752SWISS

mar., may. 5 - mar., may. 19

9:15 am - 10:43 pm

LCY

SEA

21h 28m2 stops

10:58 am - 12:55 pm

SEA

LCY

17h 57m2 stops

$763SWISS

jue., ene. 22 - jue., ene. 29

8:40 am - 10:05 pm

LCY

SEA

21h 25m2 stops

2:05 pm - 4:40 pm

SEA

LCY

18h 35m1 stop

$768Virgin Atlantic

jue., feb. 19 - mar., abr. 14

7:15 pm - 11:33 pm

LCY

SEA

35h 18m2 stops

7:15 am - 2:05 pm

SEA

LCY

23h 50m2 stops

$773British Airways

mar., mar. 10 - mar., mar. 17

Delta flights from London City Airport to Seattle

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

Delta

Apr 8

LCY10:00 amLondon City

13h 50m

1 stop

SEA3:50 pmSeattle/Tacoma Intl

Apr 15

SEA5:35 pmSeattle/Tacoma Intl

15h 05m

1 stop

LCY4:40 pmLondon City

$819

Find similar

Delta

Apr 3

LCY10:00 amLondon City

13h 50m

1 stop

SEA3:50 pmSeattle/Tacoma Intl

Apr 9

SEA5:35 pmSeattle/Tacoma Intl

15h 05m

1 stop

LCY4:40 pmLondon City

$836

Find similar

Delta

Apr 8

LCY7:45 amLondon City

16h 05m

1 stop

SEA3:50 pmSeattle/Tacoma Intl

Apr 15

SEA5:35 pmSeattle/Tacoma Intl

15h 05m

1 stop

LCY4:40 pmLondon City

$840

Find similar

SWISS flights from London City Airport to Seattle

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

SWISS

Jan 21

LCY9:20 amLondon City

19h 52m

2 stops

SEA9:12 pmSeattle/Tacoma Intl

Jan 28

SEA12:35 pmSeattle/Tacoma Intl

20h 30m

2 stops

LCY5:05 pmLondon City

$722

Find similar

SWISS

Jan 21

LCY9:20 amLondon City

19h 52m

2 stops

SEA9:12 pmSeattle/Tacoma Intl

Jan 28

SEA10:58 amSeattle/Tacoma Intl

17h 57m

2 stops

LCY12:55 pmLondon City

$723

Find similar

SWISS

May 5

LCY9:25 amLondon City

17h 11m

2 stops

SEA6:36 pmSeattle/Tacoma Intl

May 19

SEA1:45 pmSeattle/Tacoma Intl

19h 45m

2 stops

LCY5:30 pmLondon City

$727

Find similar

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

mié. 1/21

9:20 am-9:12 pm

2 stops19h 52m

Seattle/Tacoma Intl

mié. 1/28

12:35 pm-5:05 pm

2 stops20h 30m

$722

LondonSeattle

LCY - SEA

LCYSEA

London City

mié. 1/21

9:20 am-9:12 pm

2 stops19h 52m

Seattle/Tacoma Intl

mié. 1/28

10:58 am-12:55 pm

2 stops17h 57m

$723

LondonSeattle

LCY - SEA

LCYSEA

London City

jue. 3/5

8:05 pm-11:35 am

1 stop23h 30m

Seattle/Tacoma Intl

mar. 3/10

4:00 pm-5:20 pm

1 stop18h 20m

$725

LondonSeattle

LCY - SEA

LCYSEA

London City

mar. 5/5

9:25 am-6:36 pm

2 stops17h 11m

Seattle/Tacoma Intl

mar. 5/19

1:45 pm-5:30 pm

2 stops19h 45m

$727

LondonSeattle

LCY - SEA

LCYSEA

London City

mié. 3/4

6:55 pm-11:35 am

1 stop24h 40m

Seattle/Tacoma Intl

mar. 3/17

4:00 pm-5:20 pm

1 stop18h 20m

$737

LondonSeattle

LCY - SEA

LCYSEA

London City

mar. 3/3

9:15 am-10:43 pm

2 stops21h 28m

Seattle/Tacoma Intl

lun. 3/16

10:55 am-12:55 pm

2 stops19h 00m

$748

LondonSeattle

LCY - SEA

LCYSEA

London City

mar. 5/5

9:25 am-6:36 pm

2 stops17h 11m

Seattle/Tacoma Intl

mar. 5/19

2:10 pm-6:35 pm

1 stop20h 25m

$752

LondonSeattle

LCY - SEA

LCYSEA

London City

jue. 1/22

9:15 am-10:43 pm

2 stops21h 28m

Seattle/Tacoma Intl

jue. 1/29

10:58 am-12:55 pm

2 stops17h 57m

$763

LondonSeattle

LCY - SEA

LCYSEA

London City

jue. 2/19

8:40 am-10:05 pm

2 stops21h 25m

Seattle/Tacoma Intl

mar. 4/14

2:05 pm-4:40 pm

1 stop18h 35m

$768

LondonSeattle

LCY - SEA

LCYSEA

London City

mar. 3/10

7:15 pm-11:33 pm

2 stops35h 18m

Seattle/Tacoma Intl

mar. 3/17

7:15 am-2:05 pm

2 stops23h 50m

$773

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 $777. 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 $942.

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 $819 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $859. Departure times in the evening 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 50m
Direct flights	None

The fastest flight from London City Airport to Seattle takes 13h 50m

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 05m.
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

Puyallup

Marysville

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Westport

Kirkland

Centralia

Shoreline

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.