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Cheap flights from London City Airport to Seattle from £487

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — SEA
16 Jul — 23 Jul1
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 11 July 2025.

Round-trip from

£487

Popular in

August

Cheapest in

January

Average price

£723
SWISS
  • SWISS
  • 6/9-22/9
  • 3 total stops
  • 32h 56m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£73 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in July 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 11 July 2025.

Sat 6/909:20LCY - SEA
1 stop13h 30mSWISS
Mon 22/915:19SEA - LCY
2 stops19h 26mSWISS
Deal found 9/7£487
Sat 6/909:20LCY - SEA
1 stop13h 30mMultiple Airlines
Sat 4/1014:20SEA - LCY
1 stop18h 55mMultiple Airlines
Deal found 10/7£491
Thu 13/1109:40LCY - SEA
1 stop34h 30mLufthansa
Mon 17/1114:00SEA - LCY
1 stop19h 40mLufthansa
Deal found 9/7£510
Mon 22/910:00LCY - SEA
1 stop14h 05mVirgin Atlantic
Mon 6/1014:10SEA - LCY
1 stop19h 10mVirgin Atlantic
Deal found 9/7£516
Tue 5/809:20LCY - SEA
1 stop14h 35mDelta
Thu 16/1017:40SEA - LCY
1 stop15h 00mDelta
Deal found 10/7£552

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 11 July 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

Sat 6/9

09:20-14:50

1 stop13h 30m

Seattle/Tacoma Intl

Mon 22/9

15:19-18:45

2 stops19h 26m

£487

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 6/9

09:20-14:50

1 stop13h 30m

Seattle/Tacoma Intl

Sat 4/10

14:20-17:15

1 stop18h 55m

£491

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 13/11

09:40-12:10

1 stop34h 30m

Seattle/Tacoma Intl

Mon 17/11

14:00-17:40

1 stop19h 40m

£510

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 22/9

10:00-16:05

1 stop14h 05m

Seattle/Tacoma Intl

Mon 6/10

14:10-17:20

1 stop19h 10m

£516

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 5/8

09:20-15:55

1 stop14h 35m

Seattle/Tacoma Intl

Thu 16/10

17:40-16:40

1 stop15h 00m

£552

LondonSeattle

LCY - SEA

LCYSEA

London City

Sat 6/9

09:20-14:50

1 stop13h 30m

£495

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 3/9

08:30-20:40

2 stops20h 10m

£502

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 7/10

19:10-11:55

1 stop24h 45m

£523

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 10/12

09:10-18:20

1 stop17h 10m

£626

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 5/1

10:00-20:47

2 stops18h 47m

£672

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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 11 July 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 11 July 2025.
See what other customers who have flown with Delta, KLM, andSWISS from London City Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,655 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Aer Lingus
7.1
Good
1,154 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • What are the cheapest airlines flying from London City Airport to Seattle round-trip?

    Our cheapest airline available from London City Airport to Seattle is SWISS. Our recent data shows that you can find tickets from as low as £487 on this airline. Additional options worth looking into are Lufthansa and Virgin Atlantic, starting at £510 and £516 round-trip.

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

    To fly one-way, consider booking your trip with SWISS, which is currently one of the cheapest options available, starting at £495. Lufthansa flights start at £523 while deals on Aer Lingus start at £626 one-way.

  • 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 London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

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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.

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