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Cheap flights from London City Airport to Seattle from £427

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — SEA
24 Jul — 31 Jul1
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 24 June 2026.

Wed 7/1009:15
LCY
-
SEA
2 stops17h 17m
SWISS
Wed 21/1007:00
SEA
-
LCY
2 stops21h 35m
SWISS
Deal found 19/6£486
Fri 26/610:00
LCY
-
SEA
1 stop14h 24m
KLM
Thu 9/713:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 23/6£487
Mon 29/610:00
LCY
-
SEA
1 stop14h 24m
KLM
Mon 13/713:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 22/6£488
Mon 2/1119:05
LCY
-
SEA
2 stops35h 48m
SWISS
Mon 16/1115:27
SEA
-
LCY
2 stops17h 38m
SWISS
Deal found 21/6£492
Fri 3/708:25
LCY
-
SEA
1 stop15h 55m
Virgin Atlantic
Mon 13/713:45
SEA
-
LCY
1 stop22h 00m
Virgin Atlantic
Deal found 20/6£494
Sun 26/720:15
LCY
-
SEA
2 stops28h 23m
Virgin Atlantic
Fri 7/809:53
SEA
-
LCY
2 stops15h 37m
Virgin Atlantic
Deal found 23/6£496
Thu 2/710:00
LCY
-
SEA
1 stop14h 20m
KLM
Sun 12/713:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 23/6£499
Mon 29/610:00
LCY
-
SEA
1 stop14h 24m
KLM
Sun 12/713:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 22/6£503
Mon 29/609:20
LCY
-
SEA
1 stop15h 04m
Virgin Atlantic
Wed 8/717:40
SEA
-
LCY
1 stop29h 35m
Virgin Atlantic
Deal found 22/6£504
Sat 4/710:00
LCY
-
SEA
1 stop14h 20m
KLM
Mon 13/713:45
SEA
-
LCY
1 stop11h 45m
KLM
Deal found 20/6£507
Mon 29/610:00
LCY
-
SEA
1 stop14h 24m
Virgin Atlantic
Mon 13/717:40
SEA
-
LCY
1 stop16h 50m
Virgin Atlantic
Deal found 20/6£508
Fri 2/1010:00
LCY
-
SEA
1 stop14h 35m
Virgin Atlantic
Sun 11/1013:45
SEA
-
LCY
1 stop11h 45m
Virgin Atlantic
Deal found 21/6£509

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 24 June 2026.

Round-trip from

£486

One-way from

£427

Popular in

July

Cheapest in

February

Average price

£633
SWISS
  • SWISS
  • 7/10-21/10
  • 4 total stops
  • 38h 52m total
  • London to Seattle
Search Deals
30/8
  • 30/8
  • 2 total stops
  • 27h 30m 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. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 24 June 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

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 15/10

06:45-17:10

1 stop18h 25m

Seattle/Tacoma Intl

Mon 19/10

19:10-20:45

1 stop17h 35m

£512
Fastest return journey

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 19/8

10:00-16:27

1 stop14h 27m

Seattle/Tacoma Intl

Mon 31/8

17:45-16:40

1 stop14h 55m

£556

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 24/8

10:00-16:27

1 stop14h 27m

Seattle/Tacoma Intl

Tue 1/9

17:45-16:40

1 stop14h 55m

£557

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 17/9

08:25-16:35

1 stop16h 10m

Seattle/Tacoma Intl

Sat 26/9

17:45-19:45

1 stop18h 00m

£590

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 28/7

07:45-20:27

2 stops20h 42m

Seattle/Tacoma Intl

Mon 4/1

09:30-09:30

2 stops16h 00m

£590

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 6/8

20:15-11:37

1 stop23h 22m

Seattle/Tacoma Intl

Thu 13/8

13:50-19:45

1 stop21h 55m

£610

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 11/8

09:15-20:43

2 stops19h 28m

Seattle/Tacoma Intl

Fri 21/8

07:00-08:25

2 stops17h 25m

£611

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 15/8

09:00-20:43

2 stops19h 43m

Seattle/Tacoma Intl

Fri 28/8

07:00-08:25

2 stops17h 25m

£611

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 17/8

09:15-20:43

2 stops19h 28m

Seattle/Tacoma Intl

Fri 28/8

07:00-08:25

2 stops17h 25m

£611

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 1/10

09:15-18:32

2 stops17h 17m

Seattle/Tacoma Intl

Tue 13/10

07:00-12:35

2 stops21h 35m

£620

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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.

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?

    British Airways, Delta, and Virgin Atlantic can get you from London City Airport to Seattle in just under 14h 27m. Your travel time can differ by up to 3h 58m. 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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