How long is the flight from Seattle to London City Airport?

For as low as £418, Delta can have you in London City Airport from Seattle in 17h 35m. The distance from Seattle to London City Airport is about 4794 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to London City Airport (average of £161). Flying from Seattle to London City Airport in August is currently the most expensive (average of £214). 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.

In terms of precipitation, rainfall in London City Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London City Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London City Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

How far in advance should I book a flight from Seattle to London City Airport?

Travelers have found it’s best to book a flight 52 days in advance to save up to 41% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to London City Airport 1-2 weeks in advance for as low as £472, or £686 for flights within the next 24 hours.

What is the cheapest month to fly from Seattle to London City Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to London City Airport. Flights to London City Airport from Seattle in October are about £558 on average during October, but can be found for as low as £379.

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

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.

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.

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.

£280+ Flights from Seattle to London City Airport

Cheap flight deals from Seattle to London City

Round-trip from	£405
One-way from	£280
Popular in	June
Cheapest in	October
Average price	£513

4/3-10/3
4 total stops
37h 46m total
Seattle to London

Search Deals

2/10
2 total stops
20h 30m 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. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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 16 September 2025.

Wed 1/1013:00SEA - LCY

2 stops35h 50mSWISS

Tue 14/1009:25LCY - SEA

2 stops17h 11mSWISS

Deal found 14/9£411

Tue 4/1115:37SEA - LCY

2 stops17h 28mSWISS

Mon 17/1119:10LCY - SEA

2 stops33h 41mSWISS

Deal found 15/9£415

Tue 14/1017:40SEA - LCY

1 stop15h 40mVirgin Atlantic

Tue 21/1010:00LCY - SEA

1 stop14h 05mVirgin Atlantic

Deal found 16/9£418

Tue 11/1115:37SEA - LCY

2 stops17h 28mSWISS

Tue 18/1109:15LCY - SEA

2 stops19h 36mSWISS

Deal found 13/9£419

Wed 22/1006:00SEA - LCY

2 stops17h 15mVirgin Atlantic

Mon 3/1118:55LCY - SEA

1 stop24h 50mVirgin Atlantic

Deal found 15/9£421

Wed 22/1006:00SEA - LCY

2 stops17h 15mVirgin Atlantic

Mon 27/1017:50LCY - SEA

2 stops29h 42mVirgin Atlantic

Deal found 15/9£428

Thu 2/1013:00SEA - LCY

2 stops20h 15mSWISS

Wed 8/1009:25LCY - SEA

2 stops17h 11mSWISS

Deal found 14/9£444

Thu 2/1013:00SEA - LCY

2 stops20h 15mSWISS

Tue 14/1009:25LCY - SEA

2 stops17h 11mSWISS

Deal found 14/9£447

Thu 27/1110:53SEA - LCY

2 stops23h 47mSWISS

Thu 4/1209:15LCY - SEA

2 stops22h 00mSWISS

Deal found 14/9£452

Thu 9/1017:40SEA - LCY

1 stop15h 00mDelta

Tue 14/1007:45LCY - SEA

1 stop16h 20mDelta

Deal found 16/9£455

Best flights from Seattle to London City
Discover carefully curated flight deals from Seattle to London City that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Tue 18/1115:00SEA - LCY

1 stop17h 35mDelta

Wed 3/1210:00LCY - SEA

1 stop33h 50mDelta

Deal found 15/9£418

Tue 3/306:05SEA - LCY

2 stops18h 45mVirgin Atlantic

Wed 15/417:50LCY - SEA

1 stop25h 45mVirgin Atlantic

Deal found 14/9£439

Wed 15/1007:00SEA - LCY

2 stops17h 10mMultiple Airlines

Tue 4/1119:10LCY - SEA

2 stops31h 42mMultiple Airlines

Deal found 14/9£460

Mon 6/1017:40SEA - LCY

1 stop15h 00mDelta

Wed 22/1008:40LCY - SEA

1 stop15h 25mDelta

Deal found 15/9£418

Thu 6/1115:00SEA - LCY

1 stop17h 35mVirgin Atlantic

Thu 20/1118:55LCY - SEA

1 stop24h 50mVirgin Atlantic

Deal found 15/9£455

Mon 17/1115:00SEA - LCY

1 stop17h 35mDelta

Tue 2/1210:00LCY - SEA

1 stop33h 50mDelta

Deal found 14/9£418

Thu 12/316:00SEA - LCY

1 stop18h 20mVirgin Atlantic

Mon 23/317:50LCY - SEA

1 stop25h 45mVirgin Atlantic

Deal found 15/9£461

Thu 2/1017:40SEA - LCY

1 stop15h 00mDelta

Tue 14/1009:20LCY - SEA

1 stop14h 45mDelta

Deal found 15/9£455

Fri 10/1014:00SEA - LCY

1 stop13h 40mDelta

Tue 14/1009:20LCY - SEA

1 stop14h 45mDelta

Deal found 16/9£455

Tue 18/1115:00SEA - LCY

1 stop17h 35mDelta

Thu 27/1110:00LCY - SEA

1 stop33h 45mDelta

Deal found 14/9£466

Wed 19/1115:00SEA - LCY

1 stop17h 35mDelta

Thu 27/1110:00LCY - SEA

1 stop33h 45mDelta

Deal found 15/9£466

Last-minute flights from Seattle to London City
Discover last-minute flight deals from Seattle to London City. Data last updated 16 September 2025 and is based on user searches.

Sun 21/917:40SEA - LCY

1 stop15h 00mDelta

Tue 7/1009:20LCY - SEA

1 stop14h 45mDelta

Deal found 14/9£418

Mon 22/909:05SEA - LCY

2 stops19h 25mMultiple Airlines

Thu 2/1009:25LCY - SEA

2 stops21h 50mMultiple Airlines

Deal found 14/9£500

Mon 22/909:05SEA - LCY

2 stops19h 25mMultiple Airlines

Tue 7/1008:45LCY - SEA

2 stops22h 30mMultiple Airlines

Deal found 15/9£504

Mon 22/914:20SEA - LCY

1 stop18h 05mLufthansa

Mon 29/919:10LCY - SEA

1 stop24h 45mLufthansa

Deal found 15/9£513

Tue 23/910:55SEA - LCY

2 stops22h 35mSWISS

Tue 7/1009:25LCY - SEA

2 stops17h 11mSWISS

Deal found 14/9£455

Tue 23/914:20SEA - LCY

1 stop18h 05mLufthansa

Tue 7/1019:10LCY - SEA

1 stop24h 45mLufthansa

Deal found 16/9£471

Wed 24/914:29SEA - LCY

2 stops18h 46mSWISS

Wed 1/1009:25LCY - SEA

2 stops17h 11mSWISS

Deal found 15/9£536

Thu 25/914:20SEA - LCY

1 stop20h 15mLufthansa

Tue 30/919:10LCY - SEA

1 stop24h 45mLufthansa

Deal found 13/9£503

Thu 25/914:20SEA - LCY

1 stop20h 15mLufthansa

Mon 29/917:00LCY - SEA

1 stop26h 55mLufthansa

Deal found 13/9£506

Thu 25/910:50SEA - LCY

2 stops17h 40mMultiple Airlines

Thu 2/1009:25LCY - SEA

2 stops21h 50mMultiple Airlines

Deal found 14/9£522

One-way flights from Seattle to London City
Search for one-way flight options from Seattle to London City. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Thu 2/1013:50SEA - LCY

2 stops20h 30mMultiple Airlines

Deal found 13/9£280

Mon 3/1121:34SEA - LCY

2 stops35h 31mMultiple Airlines

Deal found 16/9£286

Tue 11/1115:37SEA - LCY

2 stops17h 28mSWISS

Deal found 14/9£290

Wed 15/1013:50SEA - LCY

2 stops18h 25mMultiple Airlines

Deal found 14/9£291

Wed 5/1115:37SEA - LCY

2 stops17h 28mSWISS

Deal found 15/9£292

Tue 4/1115:37SEA - LCY

2 stops17h 28mSWISS

Deal found 16/9£293

Thu 16/1013:50SEA - LCY

2 stops18h 25mMultiple Airlines

Deal found 14/9£296

Tue 4/1108:48SEA - LCY

2 stops20h 02mMultiple Airlines

Deal found 14/9£300

Wed 1/1013:00SEA - LCY

2 stops35h 50mSWISS

Deal found 15/9£302

Tue 28/1014:40SEA - LCY

2 stops19h 25mSWISS

Deal found 14/9£305

Sun 9/1121:34SEA - LCY

2 stops27h 01mMultiple Airlines

Deal found 15/9£306

Tue 2/1215:10SEA - LCY

3 stops32h 40mMultiple Airlines

Deal found 14/9£308

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 18/11

15:00-16:35

1 stop17h 35m

London City

Wed 3/12

10:00-11:50

1 stop33h 50m

£418

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 6/10

17:40-16:40

1 stop15h 00m

London City

Wed 22/10

08:40-16:05

1 stop15h 25m

£418

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 17/11

15:00-16:35

1 stop17h 35m

London City

Tue 2/12

10:00-11:50

1 stop33h 50m

£418

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 3/3

06:05-08:50

2 stops18h 45m

London City

Wed 15/4

17:50-11:35

1 stop25h 45m

£439

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 6/11

15:00-16:35

1 stop17h 35m

London City

Thu 20/11

18:55-11:45

1 stop24h 50m

£455

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 2/10

17:40-16:40

1 stop15h 00m

London City

Tue 14/10

09:20-16:05

1 stop14h 45m

£455

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Fri 10/10

14:00-11:40

1 stop13h 40m

London City

Tue 14/10

09:20-16:05

1 stop14h 45m

£455

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 15/10

07:00-08:10

2 stops17h 10m

London City

Tue 4/11

19:10-18:52

2 stops31h 42m

£460

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 12/3

16:00-17:20

1 stop18h 20m

London City

Mon 23/3

17:50-12:35

1 stop25h 45m

£461

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 18/11

15:00-16:35

1 stop17h 35m

London City

Thu 27/11

10:00-11:45

1 stop33h 45m

£466

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 22 results

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

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 £418, Delta can have you in London City Airport from Seattle in 17h 35m. The distance from Seattle to London City Airport is about 4794 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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.
What is the cheapest month to book a flight from Seattle to London City Airport?
Currently, February is the cheapest month in which you can book a flight from Seattle to London City Airport (average of £161). Flying from Seattle to London City Airport in August is currently the most expensive (average of £214). 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

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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.

Can Cheapflights notify me if prices for flights from Seattle to London City 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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Cheap flights from Seattle to London City Airport from £280

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to London City

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to London City

Cheapest flights from Seattle to London CityExplore 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 16 September 2025.

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 16 September 2025.

Cheapflights Fare Finder

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

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.

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?

How long is the flight from Seattle to London City Airport?

Can I find deals for flights from Seattle to London City that include hotel bookings?

How can I find direct flights from Seattle to London City?

Can I find deals for business class flights from Seattle to London City?

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

Travelling to a place near London City Airport?

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Alternative routes for Seattle to London City

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How does Cheapflights help users find flights from Seattle to London City?

Why should you use Cheapflights to find cheap flight tickets from Seattle to London City?

Can Cheapflights find flights from Seattle to London City with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to London City become cheaper?

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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 16 September 2025.