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Cheap flights from London Southend Airport to Seattle from £406

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.
SEN — SEA
17 10月 — 24 10月1
1 adult
1 adult, Economy

Cheap flight deals from Southend to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Southend (SEN) 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 17 9月 2025.

Round-trip from

£923

One-way from

£406

Popular in

July

Cheapest in

January

Average price

£496
16/11-29/11
  • 16/11-29/11
  • 5 total stops
  • 55h 55m total
  • London to Seattle
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2/10
  • 2/10
  • 3 total stops
  • 34h 57m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Southend to Seattle

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 17 9月 2025.

週一 22/911:05SEN - SEA
2 stops31h 30mMultiple Airlines
週三 31/1215:10SEA - SEN
2 stops21h 50mMultiple Airlines
Deal found 15/9£787
週日 16/1118:05SEN - SEA
2 stops31h 00mMultiple Airlines
週六 29/1111:55SEA - SEN
3 stops24h 55mMultiple Airlines
Deal found 16/9£923
週五 31/1008:00SEN - SEA
1 stop35h 25mMultiple Airlines
週五 7/1114:35SEA - SEN
2 stops24h 20mMultiple Airlines
Deal found 15/9£2,024

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend 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 17 9月 2025.
Use the filters below to find and compare flights from London Southend Airport to Seattle that are best for you.

Fly from

Southend

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

SEN - SEA

SENSEA

London Southend

週日 16/11

18:05-17:05

2 stops31h 00m

Seattle/Tacoma Intl

週六 29/11

11:55-20:50

3 stops24h 55m

£923

LondonSeattle

SEN - SEA

SENSEA

London Southend

週五 31/10

08:00-12:25

1 stop35h 25m

Seattle/Tacoma Intl

週五 7/11

14:35-22:55

2 stops24h 20m

£2,024

LondonSeattle

SEN - SEA

SENSEA

London Southend

週四 2/10

17:40-20:37

3 stops34h 57m

£406

LondonSeattle

SEN - SEA

SENSEA

London Southend

週一 29/9

20:05-10:34

3 stops46h 29m

£411

LondonSeattle

SEN - SEA

SENSEA

London Southend

週一 24/11

07:20-17:00

2 stops17h 40m

£437

LondonSeattle

SEN - SEA

SENSEA

London Southend

週日 14/12

07:10-08:52

3 stops33h 42m

£453

LondonSeattle

SEN - SEA

SENSEA

London Southend

週日 26/10

20:05-22:00

3 stops32h 55m

£469

LondonSeattle

SEN - SEA

SENSEA

London Southend

週日 21/9

15:35-20:29

3 stops36h 54m

£473

LondonSeattle

SEN - SEA

SENSEA

London Southend

週一 13/10

20:05-19:31

3 stops31h 26m

£480

LondonSeattle

SEN - SEA

SENSEA

London Southend

週六 14/3

20:00-19:20

2 stops30h 20m

£490

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 11 results
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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.
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

Find useful and relevant information for your journey from Southend 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 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.

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

    Currently, January is the cheapest month in which you can book a flight from London Southend Airport to Seattle (average of £622). Flying from London Southend 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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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.

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

Not ready to book yet? You can track prices for flights from Southend to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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