Find flights
When to book

Cheap flights from London Southend Airport to Washington from £395

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — SEA
20 Aug — 27 Aug1
1 adult

Cheap flight deals from Southend to Washington

Keep the following information in mind while searching for Southend to Washington flight deals. Data was last updated 15 August 2025.

Round-trip from

£945

One-way from

£395

Popular in

August

Cheapest in

January

Average price

£694
12/11-15/11
  • 12/11-15/11
  • 4 total stops
  • 39h 40m total
  • London to Washington
Search Deals
18/9
  • 18/9
  • 3 total stops
  • 34h 57m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Southend to Washington

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 15 August 2025.

Wed 12/1107:10SEN - SEA
2 stops17h 50mMultiple Airlines
Sat 15/1115:20SEA - SEN
2 stops21h 50mMultiple Airlines
Deal found 15/8£945
Thu 11/917:40SEN - SEA
2 stops33h 41mMultiple Airlines
Thu 18/913:50SEA - SEN
2 stops17h 55mMultiple Airlines
Deal found 14/8£1,207
Sun 28/915:35SEN - SEA
2 stops51h 00mMultiple Airlines
Sun 5/1013:30SEA - SEN
1 stop12h 55mMultiple Airlines
Deal found 14/8£1,243
Fri 5/916:55SEN - SEA
2 stops30h 20mMultiple Airlines
Sun 14/913:30SEA - SEN
1 stop12h 55mMultiple Airlines
Deal found 15/8£1,257
Sat 16/817:30SEN - SEA
3 stops29h 35mMultiple Airlines
Sun 31/818:50SEA - SEN
2 stops16h 45mMultiple Airlines
Deal found 13/8£1,412
Fri 15/811:05SEN - SEA
2 stops17h 35mMultiple Airlines
Wed 3/919:00SEA - SEN
2 stops17h 50mMultiple Airlines
Deal found 14/8£1,673

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 15 August 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

Wed 12/11

07:10-17:00

2 stops17h 50m

Seattle/Tacoma Intl

Sat 15/11

15:20-21:10

2 stops21h 50m

£945

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 11/9

17:40-19:21

2 stops33h 41m

Seattle/Tacoma Intl

Thu 18/9

13:50-15:45

2 stops17h 55m

£1,207

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 28/9

15:35-10:35

2 stops51h 00m

Seattle/Tacoma Intl

Sun 5/10

13:30-10:25

1 stop12h 55m

£1,243

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 18/9

17:40-20:37

3 stops34h 57m

£395

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 28/8

17:40-20:51

3 stops59h 11m

£416

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 2/10

17:40-09:55

2 stops48h 15m

£442

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 28/12

18:05-07:07

3 stops45h 02m

£472

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 29/12

07:15-07:07

3 stops31h 52m

£487

LondonSeattle

SEN - SEA

SENSEA

London Southend

Wed 15/10

15:40-15:05

3 stops31h 25m

£495

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 21/8

17:40-18:38

2 stops32h 58m

£515

Flights are sorted by cheapest return flights first.

Deals found on 13/8

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.

  • What is the cheapest month to book a flight from London Southend Airport to State of Washington?

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

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 Washington

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Gatwick to LaGuardia flights
Gatwick to John F Kennedy Intl flights
Stansted to John F Kennedy Intl flights
London City to Newark flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
Luton to Newark flights
Heathrow to Orlando flights
London City to LaGuardia flights
Heathrow to Los Angeles flights
Heathrow to Boston flights
Heathrow to Miami flights
Heathrow to Dallas/Fort Worth flights
Heathrow to Las Vegas flights
Heathrow to O'Hare Intl flights
Heathrow to San Francisco flights
Heathrow to Baltimore flights
Gatwick to Boston flights
Gatwick to Orlando flights
Luton to LaGuardia flights
Heathrow to Dulles Intl flights
Heathrow to Seattle flights
London City to Orlando flights
London City to Los Angeles flights
Gatwick to Miami flights
Heathrow to Hobby flights
London City to Boston flights
London City to Miami flights
Gatwick to Los Angeles flights
Heathrow to Tampa flights
Gatwick to O'Hare Intl flights
Gatwick to Baltimore flights
Gatwick to Las Vegas flights
Stansted to LaGuardia flights
Gatwick to San Francisco flights
Heathrow to George Bush Intcntl flights
Heathrow to Atlanta flights
Gatwick to Dallas/Fort Worth flights
Luton to Los Angeles flights
London City to O'Hare Intl flights
Heathrow to Midway flights
London City to Las Vegas flights
London City to San Francisco flights
Heathrow to Austin flights
Heathrow to Philadelphia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.