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Cheap flights from Seattle to London City Airport from £240

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 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
29 Aug — 5 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to London City

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2026.

Mon 2/1113:16
SEA
-
LCY
2 stops39h 34m
SWISS
Thu 5/1109:15
LCY
-
SEA
2 stops21h 44m
SWISS
Deal found 26/7£591
Sun 1/1114:35
SEA
-
LCY
1 stop21h 00m
Virgin Atlantic
Mon 9/1117:05
LCY
-
SEA
1 stop26h 42m
Virgin Atlantic
Deal found 25/7£658
Wed 4/1114:35
SEA
-
LCY
1 stop18h 45m
Virgin Atlantic
Mon 9/1120:05
LCY
-
SEA
1 stop23h 42m
Virgin Atlantic
Deal found 27/7£659
Tue 10/1114:35
SEA
-
LCY
1 stop18h 45m
Virgin Atlantic
Mon 11/117:50
LCY
-
SEA
1 stop26h 00m
Virgin Atlantic
Deal found 28/7£660
Wed 4/1114:35
SEA
-
LCY
1 stop19h 50m
Virgin Atlantic
Mon 16/1117:05
LCY
-
SEA
1 stop26h 42m
Virgin Atlantic
Deal found 28/7£660
Tue 22/913:50
SEA
-
LCY
1 stop11h 40m
KLM
Tue 29/910:00
LCY
-
SEA
1 stop14h 35m
KLM
Deal found 27/7£663
Tue 10/1114:35
SEA
-
LCY
1 stop19h 50m
Virgin Atlantic
Wed 18/1107:45
LCY
-
SEA
2 stops23h 10m
Virgin Atlantic
Deal found 25/7£666
Sun 1/1114:35
SEA
-
LCY
1 stop21h 00m
Virgin Atlantic
Wed 11/1108:40
LCY
-
SEA
2 stops22h 15m
Virgin Atlantic
Deal found 26/7£666
Sun 1/1114:35
SEA
-
LCY
1 stop18h 00m
Virgin Atlantic
Tue 10/1108:40
LCY
-
SEA
2 stops20h 06m
Virgin Atlantic
Deal found 29/7£667

Find flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). 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 30 July 2026.

Round-trip from

£591

One-way from

£240

Popular in

June

Cheapest in

January

Average price

£785
SWISS
  • SWISS
  • 2/11-5/11
  • 4 total stops
  • 61h 18m total
  • Seattle to London
Search Deals
17/11
  • 17/11
  • 3 total stops
  • 20h 52m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to London City 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 30 July 2026.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 7/9

17:45-16:40

1 stop14h 55m

London City

Tue 22/9

08:25-16:35

1 stop16h 10m

£696

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 26/8

13:50-09:30

1 stop11h 40m

London City

Tue 15/9

10:00-16:35

1 stop14h 35m

£734

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 21/9

13:50-09:30

1 stop11h 40m

London City

Tue 13/10

10:00-16:35

1 stop14h 35m

£734

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 11/10

17:45-19:45

1 stop18h 00m

London City

Sat 24/10

08:25-21:58

2 stops21h 33m

£741

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 11/10

17:45-18:30

1 stop16h 45m

London City

Sun 18/10

20:45-16:45

2 stops28h 00m

£742

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 13/9

13:50-09:30

1 stop11h 40m

London City

Sat 19/9

10:00-16:35

1 stop14h 35m

£753
Fastest return journey

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 17/8

13:50-09:30

1 stop11h 40m

London City

Tue 25/8

10:00-16:27

1 stop14h 27m

£772

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 12/8

13:50-09:30

1 stop11h 40m

London City

Wed 19/8

10:00-16:27

1 stop14h 27m

£772

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 10/12

06:00-07:15

2 stops17h 15m

London City

Sun 13/12

20:05-20:04

2 stops31h 59m

£801

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 27/8

13:50-09:30

1 stop11h 40m

London City

Wed 2/9

09:20-16:35

1 stop15h 15m

£805

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle 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 Seattle to London City. 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 from for flights from Seattle to London City?

    For a flight from Seattle to London City, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to London City per day. 0 airlines have flights to London City from Seattle/Tacoma Intl on a regular basis.

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

    For as low as £734, Delta can have you in London City Airport from Seattle in 11h 40m. The distance from Seattle to London City Airport is about 4794 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to London City 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 London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Aylesbury
Dover
Romford

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When you search for this flight from Seattle to London City, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to London City for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to London City from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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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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