In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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

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

What airport do you fly into for flights to Seattle from London Southend?

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from London Southend to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from London Southend on a regular basis. Booking flights from London Southend to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from London Southend per day.

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

Yes. In addition to deals on Southend to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southend to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southend to Seattle.

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

Yes. Cheapflights offers flight deals from Southend 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.

£387+ Cheap Flights from London Southend Airport to Seattle

Cheap flight deals from Southend to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Southend to Seattle
Explore the most affordable flight options available from Southend to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Thu 1/1017:15 -

3 stops28h 30m

Thu 8/1019:00 -

2 stops16h 35m

Deal found 31/8£750

Sat 19/1207:15 -

2 stops17h 45m

Sat 2/114:35 -

2 stops19h 35m

Deal found 31/8£1,293

Find flight deals from Southend to Seattle

Round-trip from	£750
One-way from	£387
Popular in	August
Cheapest in	February
Average price	£543

1/10-8/10
5 total stops
45h 05m total
London to Seattle

Search Deals

10/12
2 total stops
48h 20m total
London to Seattle

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£26 potential increase over avg. return price).

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Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Thu 1/10

17:15-13:45

3 stops28h 30m

Seattle/Tacoma Intl

Thu 8/10

19:00-19:35

2 stops16h 35m

£750

Fastest return journey

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Sat 19/12

07:15-17:00

2 stops17h 45m

Seattle/Tacoma Intl

Sat 2/1

14:35-18:10

2 stops19h 35m

£1,293

Cheapest one-way

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Mon 28/9

16:55-18:45

3 stops33h 50m

£437

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Tue 29/9

06:30-22:00

3 stops47h 30m

£443

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Mon 7/9

20:05-07:20

3 stops43h 15m

£454

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Mon 12/10

20:05-18:45

3 stops30h 40m

£464

Fastest single journey

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Thu 22/10

20:40-17:10

3 stops28h 30m

£466

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Mon 21/9

16:55-18:45

3 stops33h 50m

£468

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Fri 18/9

11:20-09:40

3 stops54h 20m

£482

LondonSeattle

SEN London Southend - SEA Seattle/Tacoma Intl

SENSEA

London Southend

Fri 25/9

11:20-18:45

3 stops39h 25m

£488

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Southend to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Southend with our price prediction graph.

SEN-SEA

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 into for flights to Seattle from London Southend?
Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from London Southend to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from London Southend on a regular basis. Booking flights from London Southend to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from London Southend per day.
Can I find deals for flights from Southend to Seattle that include hotel bookings?
Yes. In addition to deals on Southend to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southend to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southend to Seattle.
Can I find deals for business class flights from Southend to Seattle?
Yes. Cheapflights offers flight deals from Southend 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.

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When you search for this flight from Southend to Seattle, 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 Southend 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 Southend.

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

Need flexible booking options for your flight to Seattle from Southend? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Cheap flights from London Southend Airport to Seattle from £387

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southend to Seattle

Cheapest flights from Southend to SeattleExplore the most affordable flight options available from Southend to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Explore the most affordable flight options available from Southend to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Best flights from Southend to SeattleDiscover carefully curated flight deals from Southend to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Discover carefully curated flight deals from Southend to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Last-minute flights from Southend to SeattleDiscover last-minute flight deals from Southend to Seattle. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from Southend to Seattle. Data last updated 3 September 2026 and is based on user searches.

One-way flights from Southend to SeattleSearch for one-way flight options from Southend to Seattle. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Search for one-way flight options from Southend to Seattle. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Find flight deals from Southend to Seattle

Round-trip from

One-way from

Popular in

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Cheapflights Fare Finder

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

Best time to book a flight from Southend to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Southend with our price prediction graph.

Related info for your journey

What airport do you fly into for flights to Seattle from London Southend?

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

How can I find direct flights from Southend to Seattle?

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

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southend to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Southend to Seattle by cabin class

Find flights from Southend to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Southend and Seattle flights

Browse other Southend and Seattle flight options. Last updated on 3 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Seattle

Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2026.

Fly with Cheapflights

How does Cheapflights help users find flights from Southend to Seattle?

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

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

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

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Book with Flexibility

Travel Smart

Cheapest flights from Southend to Seattle
Explore the most affordable flight options available from Southend to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Best flights from Southend to Seattle
Discover carefully curated flight deals from Southend to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Last-minute flights from Southend to Seattle
Discover last-minute flight deals from Southend to Seattle. Data last updated 3 September 2026 and is based on user searches.

One-way flights from Southend to Seattle
Search for one-way flight options from Southend to Seattle. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.