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Cheap flights from Seattle to London City Airport from £287

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
4 Jan — 11 Jan1
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 5 December 2025.

Sun 7/1213:05SEA - LCY
2 stops39h 50mSWISS
Tue 16/1209:15LCY - SEA
2 stops19h 45mSWISS
Deal found 4/12£627
Mon 8/1213:05SEA - LCY
2 stops20h 00mSWISS
Mon 15/1219:10LCY - SEA
2 stops33h 50mSWISS
Deal found 4/12£638
Mon 8/1215:05SEA - LCY
1 stop17h 30mDelta
Mon 15/1207:45LCY - SEA
2 stops41h 25mDelta
Deal found 4/12£639
Sun 7/1210:40SEA - LCY
2 stops18h 15mSWISS
Mon 15/1219:10LCY - SEA
2 stops33h 50mSWISS
Deal found 4/12£649
Wed 31/1207:00SEA - LCY
2 stops18h 05mMultiple Airlines
Wed 7/117:40LCY - SEA
2 stops37h 03mMultiple Airlines
Deal found 3/12£657
Thu 4/1215:25SEA - LCY
2 stops17h 40mSWISS
Wed 10/1219:10LCY - SEA
2 stops33h 50mSWISS
Deal found 3/12£664
Tue 30/1214:00SEA - LCY
1 stop19h 35mMultiple Airlines
Wed 7/117:40LCY - SEA
2 stops37h 03mMultiple Airlines
Deal found 4/12£693
Sat 6/1213:05SEA - LCY
2 stops20h 00mSWISS
Fri 12/1219:20LCY - SEA
2 stops33h 40mSWISS
Deal found 4/12£702
Thu 4/1213:05SEA - LCY
2 stops20h 00mSWISS
Thu 11/1209:15LCY - SEA
2 stops19h 45mSWISS
Deal found 3/12£722
Mon 8/1213:05SEA - LCY
2 stops20h 00mSWISS
Sun 14/1219:20LCY - SEA
2 stops33h 40mSWISS
Deal found 4/12£739
Sun 7/1210:40SEA - LCY
2 stops18h 15mSWISS
Sun 14/1219:20LCY - SEA
2 stops33h 40mSWISS
Deal found 2/12£750

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 5 December 2025.

Round-trip from

£474

One-way from

£287

Popular in

June

Cheapest in

October

Average price

£725
SWISS
  • SWISS
  • 20/1-3/2
  • 4 total stops
  • 57h 39m total
  • Seattle to London
Search Deals
6/1
  • 6/1
  • 3 total stops
  • 53h 32m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£78 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 December 2025
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 5 December 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

Mon 26/1

15:10-17:20

1 stop18h 10m

London City

Wed 11/2

20:05-11:40

1 stop23h 35m

£480

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 28/1

06:05-08:10

2 stops18h 05m

London City

Wed 4/2

17:50-11:40

1 stop25h 50m

£484

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 5/2

07:40-09:30

2 stops17h 50m

London City

Mon 9/2

20:05-11:40

1 stop23h 35m

£489

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 13/1

07:10-07:15

2 stops16h 05m

London City

Tue 20/1

09:20-21:49

2 stops20h 29m

£492

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sat 24/1

15:10-13:15

1 stop14h 05m

London City

Fri 6/2

08:40-22:25

2 stops21h 45m

£492

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sat 17/1

15:10-17:20

1 stop18h 10m

London City

Sat 24/1

08:40-21:49

2 stops21h 09m

£492

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 5/2

10:58-12:55

2 stops17h 57m

London City

Mon 9/2

09:15-22:43

2 stops21h 28m

£495

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 18/1

10:58-12:55

2 stops17h 57m

London City

Tue 3/2

09:15-21:12

2 stops19h 57m

£495

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Fri 23/1

07:40-09:30

2 stops17h 50m

London City

Fri 6/2

08:40-20:46

2 stops20h 06m

£496

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 25/2

06:10-09:30

2 stops19h 20m

London City

Sun 8/3

13:45-12:35

1 stop29h 50m

£526

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 22 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 £480, Virgin Atlantic can have you in London City Airport from Seattle in 18h 10m. The distance from Seattle to London City Airport is about 4794 mi.

  • 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
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Romford
Bedford
Chichester
Guildford
Ipswich

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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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