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Cheap flights from Seattle to London City Airport from £255

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
18 Jul — 25 Jul1
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 18 June 2026.

Mon 17/807:00
SEA
-
LCY
2 stops21h 35m
SWISS
Wed 19/809:15
LCY
-
SEA
2 stops17h 17m
SWISS
Deal found 17/6£651
Mon 17/810:45
SEA
-
LCY
2 stops23h 55m
SWISS
Tue 25/809:15
LCY
-
SEA
2 stops17h 17m
SWISS
Deal found 16/6£657
Mon 14/913:50
SEA
-
LCY
1 stop11h 40m
Delta
Thu 24/908:25
LCY
-
SEA
1 stop16h 10m
Delta
Deal found 16/6£657
Tue 6/1013:45
SEA
-
LCY
1 stop11h 45m
KLM
Wed 21/1009:20
LCY
-
SEA
1 stop15h 15m
KLM
Deal found 17/6£658
Tue 29/906:00
SEA
-
LCY
2 stops18h 50m
Virgin Atlantic
Tue 13/1010:00
LCY
-
SEA
1 stop14h 35m
Virgin Atlantic
Deal found 15/6£660
Sun 4/1014:30
SEA
-
LCY
2 stops18h 50m
Virgin Atlantic
Wed 21/1008:25
LCY
-
SEA
2 stops20h 22m
Virgin Atlantic
Deal found 14/6£661
Wed 16/910:42
SEA
-
LCY
2 stops17h 53m
SWISS
Tue 13/1019:15
LCY
-
SEA
2 stops31h 17m
SWISS
Deal found 16/6£662
Tue 6/1007:00
SEA
-
LCY
2 stops17h 40m
SWISS
Wed 21/1009:15
LCY
-
SEA
2 stops17h 17m
SWISS
Deal found 17/6£663
Tue 10/1114:35
SEA
-
LCY
1 stop18h 45m
Virgin Atlantic
Tue 17/1108:40
LCY
-
SEA
2 stops19h 47m
Virgin Atlantic
Deal found 15/6£665
Mon 14/907:00
SEA
-
LCY
2 stops26h 30m
SWISS
Mon 21/919:15
LCY
-
SEA
2 stops31h 17m
SWISS
Deal found 14/6£666
Mon 19/1010:30
SEA
-
LCY
2 stops18h 05m
SWISS
Mon 2/1119:05
LCY
-
SEA
2 stops35h 24m
SWISS
Deal found 17/6£666
Tue 17/1106:00
SEA
-
LCY
2 stops17h 15m
Virgin Atlantic
Tue 24/1109:20
LCY
-
SEA
2 stops19h 07m
Virgin Atlantic
Deal found 17/6£668

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 18 June 2026.

Round-trip from

£651

One-way from

£255

Popular in

June

Cheapest in

January

Average price

£871
SWISS
  • SWISS
  • 17/8-19/8
  • 4 total stops
  • 38h 52m total
  • Seattle to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 5/10
  • 1 total stop
  • 18h 00m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 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 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 18 June 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 12/10

17:45-19:45

1 stop18h 00m

London City

Mon 19/10

08:25-20:31

2 stops20h 06m

£702

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 2/9

17:45-16:40

1 stop14h 55m

London City

Wed 9/9

10:00-16:35

1 stop14h 35m

£713

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 11/8

07:00-08:40

2 stops17h 40m

London City

Wed 26/8

09:15-18:32

2 stops17h 17m

£717

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 25/8

10:41-12:35

2 stops17h 54m

London City

Tue 8/9

09:15-18:32

2 stops17h 17m

£735

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 17/9

07:00-12:35

2 stops21h 35m

London City

Thu 24/9

09:15-18:32

2 stops17h 17m

£736

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 3/8

13:50-09:30

1 stop11h 40m

London City

Tue 11/8

10:00-16:27

1 stop14h 27m

£746
Fastest return journey

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 5/8

13:50-09:30

1 stop11h 40m

London City

Tue 11/8

10:00-16:27

1 stop14h 27m

£747

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 23/7

13:45-09:30

1 stop11h 45m

London City

Thu 13/8

10:00-16:27

1 stop14h 27m

£750

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 17/8

07:00-12:35

2 stops21h 35m

London City

Mon 24/8

09:15-18:32

2 stops17h 17m

£754

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 23/8

13:50-09:30

1 stop11h 40m

London City

Wed 9/9

10:00-16:35

1 stop14h 35m

£769

Flights are sorted by cheapest return flights first.

Deals found on 14/6

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 £713, Virgin Atlantic can have you in London City Airport from Seattle in 14h 55m. 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
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Watford
Guildford
Romford
Ipswich
Borehamwood
Folkestone
Southall

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

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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