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Cheap flights from Seattle to London City Airport from £305

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
20 Nov — 27 Nov1
1 adult
1 adult, Economy

Cheap 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 21 October 2025.

Round-trip from

£458

One-way from

£305

Popular in

June

Cheapest in

October

Average price

£494
SWISS
  • SWISS
  • 12/11-21/11
  • 4 total stops
  • 42h 28m total
  • Seattle to London
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17/11
  • 17/11
  • 2 total stops
  • 33h 31m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 21 October 2025.

Wed 22/1010:50SEA - LCY
2 stops38h 00mSWISS
Wed 29/1013:30LCY - SEA
2 stops40h 15mSWISS
Deal found 19/10£458
Sun 26/1023:10SEA - LCY
2 stops26h 40mDelta
Mon 10/1109:20LCY - SEA
1 stop34h 25mDelta
Deal found 20/10£473
Tue 18/1115:00SEA - LCY
1 stop17h 35mVirgin Atlantic
Tue 25/1117:50LCY - SEA
1 stop25h 55mVirgin Atlantic
Deal found 19/10£474
Tue 18/1115:37SEA - LCY
2 stops17h 28mSWISS
Tue 25/1109:15LCY - SEA
2 stops19h 36mSWISS
Deal found 20/10£481
Wed 3/1215:05SEA - LCY
1 stop17h 30mVirgin Atlantic
Wed 10/1208:40LCY - SEA
2 stops21h 43mVirgin Atlantic
Deal found 20/10£481
Wed 3/1213:05SEA - LCY
2 stops20h 00mSWISS
Wed 10/1209:25LCY - SEA
2 stops21h 03mSWISS
Deal found 20/10£488
Thu 23/1010:50SEA - LCY
2 stops17h 40mSWISS
Thu 30/1009:15LCY - SEA
2 stops20h 30mSWISS
Deal found 19/10£496
Tue 18/1110:53SEA - LCY
2 stops18h 02mMultiple Airlines
Tue 25/1109:50LCY - SEA
2 stops21h 54mMultiple Airlines
Deal found 19/10£496
Wed 26/1115:37SEA - LCY
2 stops17h 03mMultiple Airlines
Wed 3/1209:50LCY - SEA
2 stops21h 25mMultiple Airlines
Deal found 21/10£504
Thu 23/1010:50SEA - LCY
2 stops22h 25mSWISS
Wed 29/1019:10LCY - SEA
2 stops34h 35mSWISS
Deal found 20/10£510
Mon 3/1115:37SEA - LCY
2 stops17h 28mSWISS
Sun 9/1119:20LCY - SEA
2 stops35h 08mSWISS
Deal found 19/10£510

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 21 October 2025.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 31/12

15:05-17:20

1 stop18h 15m

London City

Wed 14/1

20:05-11:50

1 stop23h 45m

£474

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 2/12

15:05-17:20

1 stop18h 15m

London City

Tue 9/12

18:55-11:50

1 stop24h 55m

£474

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 3/12

15:05-16:35

1 stop17h 30m

London City

Wed 10/12

09:20-23:58

2 stops22h 38m

£481

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 17/2

07:20-08:10

2 stops16h 50m

London City

Wed 4/3

18:55-11:35

1 stop24h 40m

£484

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 5/11

14:40-17:05

2 stops18h 25m

London City

Wed 19/11

09:20-22:28

2 stops21h 08m

£488

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 3/12

13:05-17:05

2 stops20h 00m

London City

Wed 10/12

09:25-23:15

2 stops21h 50m

£488

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 11/2

12:35-17:05

2 stops20h 30m

London City

Fri 20/2

09:25-23:30

2 stops22h 05m

£494

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 15/4

17:35-16:40

1 stop15h 05m

London City

Thu 14/5

08:40-15:50

1 stop15h 10m

£496

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 19/4

17:35-16:40

1 stop15h 05m

London City

Thu 30/4

10:00-15:50

1 stop13h 50m

£496

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 31/3

17:35-16:40

1 stop15h 05m

London City

Thu 30/4

10:00-15:50

1 stop13h 50m

£496

Flights are sorted by cheapest return flights first.

Deals found on 19/10

Showing 1-10 of 21 results
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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 £474, Virgin Atlantic can have you in London City Airport from Seattle in 18h 15m. The distance from Seattle to London City Airport is about 4794 mi.

  • What are the cheapest airlines to fly from Seattle to London City Airport one-way?

    For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as £311. Users have also found prices from £313 and £314 on United Airlines and SWISS, respectively.

  • 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
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Luton
Wembley
Ilford
Deal
Hayes
Colchester
Watford
Crawley
Winchester
Chichester
Romford
Ipswich
Bedford
Brentford
Dartford

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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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