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Cheap flights from London Southend Airport to Washington from £409

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — SEA
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southend to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Southend to Washington
Explore the most affordable flight options available from Southend to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Thu 18/1206:50SEN - SEA
3 stops42h 15mMultiple Airlines
Thu 8/105:50SEA - SEN
3 stops23h 00mMultiple Airlines
Deal found 4/12£1,048
Thu 4/1218:05SEN - SEA
2 stops48h 35mMultiple Airlines
Sat 31/113:40SEA - SEN
1 stop19h 25mMultiple Airlines
Deal found 4/12£1,258

Find flight deals from Southend to Washington

Keep the following information in mind while searching for Southend to Washington flight deals. Data was last updated 5 December 2025.

Round-trip from

£1,048

One-way from

£409

Popular in

July

Cheapest in

January

Average price

£640
18/12-8/1
  • 18/12-8/1
  • 6 total stops
  • 65h 15m total
  • London to Washington
Search Deals
26/1
  • 26/1
  • 2 total stops
  • 16h 20m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend to Washington 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 5 December 2025.
Use the filters below to find and compare flights from London Southend Airport to Washington that are best for you.

Fly from

Southend

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 18/12

06:50-17:05

3 stops42h 15m

Seattle/Tacoma Intl

Thu 8/1

05:50-12:50

3 stops23h 00m

£1,048

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sat 17/1

06:40-17:05

2 stops42h 25m

Seattle/Tacoma Intl

Sat 24/1

13:40-17:05

1 stop19h 25m

£1,205

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 26/1

07:20-15:40

2 stops16h 20m

£409

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 2/2

07:20-15:40

2 stops16h 20m

£410

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 22/12

17:30-15:40

3 stops54h 10m

£423

LondonSeattle

SEN - SEA

SENSEA

London Southend

Fri 27/2

07:35-17:00

2 stops17h 25m

£442

LondonSeattle

SEN - SEA

SENSEA

London Southend

Tue 16/12

20:20-20:35

3 stops32h 15m

£495

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 9/2

07:20-17:00

2 stops17h 40m

£545

LondonSeattle

SEN - SEA

SENSEA

London Southend

Fri 12/12

16:50-23:19

3 stops38h 29m

£553

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sat 13/12

06:30-17:05

3 stops42h 35m

£576

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 12 results
1
2

Best time to book a flight from Southend to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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.

Cheapflights Insights

Everything you need to know about your flight from London Southend Airport to Washington
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Southend to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Southend to Washington?

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

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

    Yes. Cheapflights offers flight deals from Southend to Washington 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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Alternative routes for Southend to Washington

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Fly with Cheapflights

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

When you search for this flight from Southend to Washington, 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 Washington?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southend to Washington for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Washington from Southend 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 Southend to Washington become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington from Southend today and book when prices fit your budget.

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