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Cheap flights from London City Airport to Seattle from £398

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — SEA
10 May — 17 May1
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 10 April 2026.

Thu 8/1009:20
LCY
-
SEA
1 stop15h 19m
KLM
Thu 15/1013:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 7/4£566
Thu 1/1010:00
LCY
-
SEA
1 stop14h 39m
KLM
Thu 15/1013:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 6/4£566
Tue 13/1009:20
LCY
-
SEA
1 stop15h 19m
KLM
Wed 21/1013:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 5/4£567
Thu 14/509:20
LCY
-
SEA
1 stop15h 10m
Virgin Atlantic
Mon 18/517:40
SEA
-
LCY
1 stop15h 00m
Virgin Atlantic
Deal found 8/4£569
Thu 15/1009:20
LCY
-
SEA
1 stop15h 19m
KLM
Tue 20/1013:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 9/4£578
Mon 18/509:20
LCY
-
SEA
1 stop15h 10m
Virgin Atlantic
Mon 1/617:45
SEA
-
LCY
1 stop16h 45m
Virgin Atlantic
Deal found 6/4£582
Thu 14/509:20
LCY
-
SEA
1 stop15h 10m
KLM
Wed 27/513:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 8/4£584
Thu 11/608:25
LCY
-
SEA
1 stop15h 59m
Delta
Sun 5/713:45
SEA
-
LCY
1 stop11h 45m
Delta
Deal found 6/4£588
Thu 8/1010:00
LCY
-
SEA
1 stop14h 39m
KLM
Fri 16/1013:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 7/4£589
Thu 11/608:25
LCY
-
SEA
1 stop15h 59m
KLM
Sun 5/713:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 8/4£590

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 10 April 2026.

Round-trip from

£566

One-way from

£398

Popular in

July

Cheapest in

February

Average price

£537
KLM
  • KLM
  • 1/10-7/10
  • 2 total stops
  • 27h 04m total
  • London to Seattle
Search Deals
SWISS
  • SWISS
  • 7/9
  • 1 total stop
  • 13h 25m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 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 April 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 10 April 2026.
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 return flight
Fastest return journey

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 15/8

10:00-16:27

1 stop14h 27m

Seattle/Tacoma Intl

Wed 26/8

13:50-09:30

1 stop11h 40m

£622

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 29/4

10:00-16:30

1 stop14h 30m

Seattle/Tacoma Intl

Sun 3/5

17:35-16:40

1 stop15h 05m

£645

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 25/6

09:20-16:24

1 stop15h 04m

Seattle/Tacoma Intl

Sun 28/6

17:45-16:40

1 stop14h 55m

£709

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 8/5

10:00-16:30

1 stop14h 30m

Seattle/Tacoma Intl

Fri 15/5

13:45-09:30

1 stop11h 45m

£739

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 7/5

09:15-18:30

2 stops17h 15m

Seattle/Tacoma Intl

Wed 20/5

13:21-17:25

2 stops20h 04m

£825

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 11/8

09:20-16:27

1 stop15h 07m

Seattle/Tacoma Intl

Wed 26/8

13:50-09:30

1 stop11h 40m

£884

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 16/5

08:25-20:30

2 stops20h 05m

Seattle/Tacoma Intl

Mon 1/6

17:45-18:30

1 stop16h 45m

£915

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 8/5

09:15-22:47

2 stops21h 32m

Seattle/Tacoma Intl

Fri 15/5

07:00-08:25

2 stops17h 25m

£944

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 20/4

10:00-16:30

1 stop14h 30m

Seattle/Tacoma Intl

Fri 24/4

13:45-09:30

1 stop11h 45m

£988

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 3/7

19:15-14:35

1 stop27h 20m

Seattle/Tacoma Intl

Sun 5/7

07:01-12:35

2 stops21h 34m

£996

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 19 resultsSorted by cheapest first
1
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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 67% 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 £608.

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?

    Delta, KLM, and SWISS can get you from London City Airport to Seattle in just under 14h 27m. Your travel time can differ by up to 2h 48m. Airlines will cover a distance of 4794 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Tacoma
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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