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Cheap flights from London City Airport to Seattle from £355

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — SEA
24 Mar — 31 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London City to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from London City to Seattle
Explore the most affordable flight options available from London City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2026.

Tue 29/909:15
LCY
-
SEA
2 stops17h 17m
SWISS
Tue 6/1011:00
SEA
-
LCY
2 stops17h 35m
SWISS
Deal found 20/2£550
Mon 7/909:15
LCY
-
SEA
1 stop13h 25m
SWISS
Tue 22/913:20
SEA
-
LCY
2 stops20h 05m
SWISS
Deal found 21/2£550
Wed 29/409:15
LCY
-
SEA
2 stops22h 12m
SWISS
Wed 6/513:21
SEA
-
LCY
2 stops20h 04m
SWISS
Deal found 20/2£554
Tue 8/909:15
LCY
-
SEA
2 stops19h 35m
SWISS
Mon 14/916:35
SEA
-
LCY
1 stop16h 55m
SWISS
Deal found 19/2£556
Tue 14/409:15
LCY
-
SEA
2 stops21h 22m
SWISS
Wed 6/513:21
SEA
-
LCY
2 stops20h 09m
SWISS
Deal found 18/2£558
Tue 5/509:15
LCY
-
SEA
2 stops17h 15m
SWISS
Tue 12/509:55
SEA
-
LCY
2 stops23h 30m
SWISS
Deal found 20/2£561
Wed 6/509:15
LCY
-
SEA
2 stops19h 51m
SWISS
Tue 12/509:55
SEA
-
LCY
2 stops23h 30m
SWISS
Deal found 20/2£565
Sat 5/909:00
LCY
-
SEA
1 stop13h 35m
SWISS
Mon 14/916:35
SEA
-
LCY
1 stop16h 55m
SWISS
Deal found 19/2£567
Mon 16/309:15
LCY
-
SEA
2 stops21h 13m
SWISS
Tue 28/410:48
SEA
-
LCY
2 stops17h 47m
SWISS
Deal found 20/2£572
Tue 14/409:15
LCY
-
SEA
2 stops21h 22m
SWISS
Tue 21/410:48
SEA
-
LCY
2 stops17h 47m
SWISS
Deal found 20/2£573
Mon 13/409:15
LCY
-
SEA
2 stops44h 38m
Multiple Airlines
Tue 28/408:00
SEA
-
LCY
2 stops25h 55m
Multiple Airlines
Deal found 20/2£576

Find flight deals from London City to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from London City (LCY) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 February 2026.

Round-trip from

£554

One-way from

£355

Popular in

July

Cheapest in

February

Average price

£482
SWISS
  • SWISS
  • 29/4-6/5
  • 4 total stops
  • 42h 16m total
  • London to Seattle
Search Deals
SWISS
  • SWISS
  • 27/4
  • 2 total stops
  • 22h 37m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London City to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 February 2026.
Use the filters below to find and compare flights from London City Airport to Seattle that are best for you.

Fly from

London City

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 14/4

09:15-22:37

2 stops21h 22m

Seattle/Tacoma Intl

Wed 6/5

13:21-17:30

2 stops20h 09m

£558

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 14/4

19:15-19:00

2 stops31h 45m

Seattle/Tacoma Intl

Tue 28/4

10:48-12:35

2 stops17h 47m

£576

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 13/4

09:15-22:37

2 stops21h 22m

Seattle/Tacoma Intl

Tue 28/4

10:48-12:35

2 stops17h 47m

£600

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 17/3

19:10-23:28

2 stops35h 18m

Seattle/Tacoma Intl

Sun 29/3

10:48-12:35

2 stops41h 47m

£604

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 13/4

09:15-22:37

2 stops21h 22m

Seattle/Tacoma Intl

Thu 23/4

10:48-08:25

2 stops37h 37m

£612

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 14/4

19:15-19:00

2 stops31h 45m

Seattle/Tacoma Intl

Wed 29/4

10:48-12:35

2 stops17h 47m

£650

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 20/5

09:15-21:06

2 stops19h 51m

Seattle/Tacoma Intl

Sat 6/6

16:30-13:45

1 stop13h 15m

£676

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 13/4

09:15-22:37

2 stops21h 22m

Seattle/Tacoma Intl

Mon 27/4

10:48-12:35

2 stops17h 47m

£678

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 27/4

09:20-16:30

1 stop15h 10m

Seattle/Tacoma Intl

Sun 3/5

13:45-09:30

1 stop11h 45m

£714

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 13/4

09:20-16:30

1 stop15h 10m

Seattle/Tacoma Intl

Mon 27/4

13:45-09:30

1 stop11h 45m

£715

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 21 results
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Best time to book a flight from London City to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from London City with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London City Airport to Seattle

What’s the top stopover airport for flights from London City Airport to Seattle?

Share of one-stop return flights from London City Airport to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Amsterdam (AMS) – chosen by Cheapflights users on 75% of one-stop itineraries from London City Airport to Seattle on Cheapflights.

What’s the cheapest stopover airport for flights from London City Airport to Seattle?

Average return fare for one-stop flights from London City Airport to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £614.

What’s the fastest stopover option from London City Airport to Seattle?

Shortest average travel time for one-stop one-way flights from London City Airport to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Zurich (ZRH) have the shortest average one-way travel time for one-stop routes: 13h 30m.

Which airport typically offers the quickest stopover for flights from London City Airport to Seattle?

Average stopover duration for one-stop one-way flights from London City Airport to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 2h 58m.

Related info for your journey

Find useful and relevant information for your journey from London City to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from London City?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from London City to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from London City on a regular basis. Booking flights from London City to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from London City per day.

  • How long is the flight from London City Airport to Seattle?

    SWISS can get you from London City Airport to Seattle in just under 21h 22m. Your travel time can differ by up to . Airlines will cover a distance of 4794 mi.

  • Can I find deals for flights from London City to Seattle that include hotel bookings?

    Yes. In addition to deals on London City to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London City to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London City to Seattle.

  • Can I find deals for business class flights from London City to Seattle?

    Yes. Cheapflights offers flight deals from London City to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
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Federal Way
SeaTac

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How does Cheapflights help users find flights from London City to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London City to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London City to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from London City.

Can Cheapflights find flights from London City to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London City to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London City to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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