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Cheap flights from London City Airport to Seattle from £445

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — SEA
1 Sep — 8 Sep1
1 adult

Cheap 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 27 August 2025.

Round-trip from

£479

One-way from

£445

Popular in

August

Cheapest in

January

Average price

£698
9/10-16/10
  • 9/10-16/10
  • 4 total stops
  • 44h 16m total
  • London to Seattle
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23/10
  • 23/10
  • 2 total stops
  • 20h 17m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£60 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from London City to Seattle

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 27 August 2025.

Thu 9/1009:25LCY - SEA
2 stops21h 01mMultiple Airlines
Thu 16/1010:00SEA - LCY
2 stops23h 15mMultiple Airlines
Deal found 25/8£479
Fri 5/908:55LCY - SEA
3 stops22h 04mMultiple Airlines
Tue 30/908:00SEA - LCY
2 stops20h 30mMultiple Airlines
Deal found 26/8£488
Fri 31/1009:25LCY - SEA
2 stops20h 20mSWISS
Thu 6/1115:37SEA - LCY
2 stops17h 28mSWISS
Deal found 25/8£500
Thu 13/1118:15LCY - SEA
1 stop25h 55mLufthansa
Mon 17/1114:00SEA - LCY
1 stop19h 40mLufthansa
Deal found 26/8£502
Mon 15/919:10LCY - SEA
2 stops31h 26mMultiple Airlines
Tue 30/907:15SEA - LCY
2 stops25h 10mMultiple Airlines
Deal found 26/8£505
Tue 23/909:20LCY - SEA
2 stops22h 22mVirgin Atlantic
Tue 30/913:55SEA - LCY
1 stop19h 25mVirgin Atlantic
Deal found 26/8£508
Wed 3/909:25LCY - SEA
2 stops21h 34mMultiple Airlines
Wed 10/907:00SEA - LCY
2 stops17h 10mMultiple Airlines
Deal found 24/8£509
Wed 17/908:45LCY - SEA
2 stops21h 35mLufthansa
Tue 7/1014:20SEA - LCY
1 stop18h 05mLufthansa
Deal found 26/8£514
Wed 17/908:40LCY - SEA
1 stop15h 25mVirgin Atlantic
Tue 7/1017:40SEA - LCY
1 stop15h 00mVirgin Atlantic
Deal found 26/8£521

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

Fly from

London City

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 9/10

09:25-22:26

2 stops21h 01m

Seattle/Tacoma Intl

Thu 16/10

10:00-17:15

2 stops23h 15m

£479

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 31/10

09:25-22:45

2 stops20h 20m

Seattle/Tacoma Intl

Thu 6/11

15:37-17:05

2 stops17h 28m

£500

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 13/11

18:15-12:10

1 stop25h 55m

Seattle/Tacoma Intl

Mon 17/11

14:00-17:40

1 stop19h 40m

£502

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 8/10

10:00-16:05

1 stop14h 05m

Seattle/Tacoma Intl

Mon 20/10

17:40-17:20

1 stop15h 40m

£505

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 15/9

19:10-18:36

2 stops31h 26m

Seattle/Tacoma Intl

Tue 30/9

07:15-16:25

2 stops25h 10m

£505

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 8/10

08:40-20:20

2 stops19h 40m

Seattle/Tacoma Intl

Tue 14/10

17:40-17:20

1 stop15h 40m

£508

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 23/9

09:20-23:42

2 stops22h 22m

Seattle/Tacoma Intl

Tue 30/9

13:55-17:20

1 stop19h 25m

£508

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 17/9

08:45-22:20

2 stops21h 35m

Seattle/Tacoma Intl

Tue 7/10

14:20-16:25

1 stop18h 05m

£514

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 23/10

08:45-21:02

2 stops20h 17m

£445

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 30/10

09:40-23:34

2 stops20h 54m

£453

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 17 results
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.

Cheapflights Insights

Everything you need to know about your flight from London City Airport to Seattle

What is the cheapest time of day to fly from LCY to SEA?

Find hourly flight availability from London City to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London City Airport to Seattle as you normally would.

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?

    SWISS, Lufthansa, and Virgin Atlantic can get you from London City Airport to Seattle in just under 14h 05m. Your travel time can differ by up to 11h 50m. 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.

  • What is the cheapest month to book a flight from London City Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from London City Airport to Seattle (average of £622). Flying from London City Airport to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
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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