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$308+ Cheap flights from Seattle (SEA) to London City (LCY)

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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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 July 3, 2025.

Round-trip from

$580
(SWISS)

One-way from

$308
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$977
From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to London City

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 July 3, 2025.

This SWISS deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:00 pmSEA - LCY
2 stops20h 15mSWISS
Wed 10/226:05 pmLCY - SEA
2 stops32h 31mSWISS
Deal found 7/1$580
This Virgin Atlantic deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:40 pmSEA - LCY
1 stop16h 55mVirgin Atlantic
Wed 9/37:45 amLCY - SEA
2 stops20h 23mVirgin Atlantic
Deal found 7/3$581
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:35 pmSEA - LCY
1 stop18h 05mMultiple Airlines
Wed 8/209:05 amLCY - SEA
1 stop16h 45mMultiple Airlines
Deal found 7/1$608
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:40 pmSEA - LCY
1 stop15h 00mDelta
Tue 9/309:20 amLCY - SEA
1 stop14h 45mDelta
Deal found 7/2$633
This Lufthansa deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:50 pmSEA - LCY
2 stops15h 45mLufthansa
Fri 9/58:55 amLCY - SEA
2 stops19h 47mLufthansa
Deal found 7/2$645
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/171:55 pmSEA - LCY
1 stop19h 25mKLM
Sun 8/248:45 pmLCY - SEA
1 stop22h 50mKLM
Deal found 7/3$656

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated July 3, 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 10/1

1:00 pm-5:15 pm

2 stops20h 15m

London City

Wed 10/22

6:05 pm-6:36 pm

2 stops32h 31m

$580

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 8/18

5:40 pm-6:35 pm

1 stop16h 55m

London City

Wed 9/3

7:45 am-8:08 pm

2 stops20h 23m

$581

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 8/4

7:35 pm-9:40 pm

1 stop18h 05m

London City

Wed 8/20

9:05 am-5:50 pm

1 stop16h 45m

$608

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 9/15

5:40 pm-4:40 pm

1 stop15h 00m

London City

Tue 9/30

9:20 am-4:05 pm

1 stop14h 45m

$633

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 8/24

6:50 pm-6:35 pm

2 stops15h 45m

London City

Tue 9/9

8:45 am-8:42 pm

2 stops19h 57m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 8/17

1:55 pm-5:20 pm

1 stop19h 25m

London City

Sun 8/24

8:45 pm-11:35 am

1 stop22h 50m

$656

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 9/17

3:45 pm-9:40 pm

2 stops21h 55m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 round-trip 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 Seattle to London City Airport

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

Find hourly flight availability from Seattle to London City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Seattle to London City Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. 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 London City. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Delta, KLM, and SWISS from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,207 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

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

    According to our current data, SWISS ($580), Virgin Atlantic ($581), and Delta ($633) offers the cheapest pricing from Seattle to London City Airport.

  • 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 vacation 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.

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

    Currently, April is the cheapest month in which you can book a flight from Seattle to London City Airport (average of $686). Flying from Seattle to London City Airport in July is currently the most expensive (average of $1,046). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Folkestone
Borehamwood
Aylesbury
Chelmsford
Brentwood
Chichester
Arundel
Milton Keynes
Bishop's Stortford
Dartford

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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