HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southend

$343+ Cheap flights from Washington to Southend (SEN)

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEN
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Southend with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Washington to Southend

Cheapest flights from Washington to Southend
Explore the most affordable flight options available from Washington to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Mytrip deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:10 amSEA - SEN
3 stops20h 40mMultiple Airlines
Thu 12/116:05 pmSEN - SEA
2 stops26h 05mMultiple Airlines
Deal found 11/6$700
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:50 amPDX - SEN
3 stops27h 10mMultiple Airlines
Wed 12/107:10 amSEN - PDX
3 stops34h 05mMultiple Airlines
Deal found 11/5$910
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:35 pmSEA - SEN
2 stops21h 35mMultiple Airlines
Sat 12/277:15 amSEN - SEA
2 stops17h 45mMultiple Airlines
Deal found 11/5$2,513

Cheap flight deals from Washington to Southend

Keep the following information in mind while searching for Washington to Southend flight deals. Data was last updated November 6, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$671
(Mytrip)

One-way from

$343
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$691
Provider with most accurate pricing for Seattle/Tacoma Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London (LON) flights.
Search Deals
From Washington to London Southend
Search Deals
One-way flight from Washington to London Southend
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Southend 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 2,558,603 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Washington to London Southend Airport that are best for you.

Fly from

Washington

Fly to

Southend

Route

Depart

Return

Price

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sun 3/1

2:35 pm-2:50 pm

2 stops16h 15m

London Southend

Sun 3/15

5:25 pm-6:00 pm

2 stops31h 35m

$671

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Thu 12/4

8:10 am-12:50 pm

3 stops20h 40m

London Southend

Thu 12/11

6:05 pm-12:10 pm

2 stops26h 05m

$700

PortlandLondon

PDX - SEN

PDXSEN

Portland

Wed 12/3

9:50 am-9:00 pm

3 stops27h 10m

London Southend

Wed 12/10

7:10 am-9:15 am

3 stops34h 05m

$910

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sat 12/20

2:35 pm-8:10 pm

2 stops21h 35m

London Southend

Sat 12/27

7:15 am-5:00 pm

2 stops17h 45m

$2,513

PortlandLondon

PDX - SEN

PDXSEN

Portland

Mon 12/1

2:45 pm-10:00 am

2 stops35h 15m

$343

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sat 11/22

11:55 am-10:30 am

3 stops38h 35m

$355

PortlandLondon

PDX - SEN

PDXSEN

Portland

Tue 4/28

3:45 pm-11:05 pm

3 stops23h 20m

$361

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sat 11/15

11:55 am-10:30 am

3 stops38h 35m

$371

PortlandLondon

PDX - SEN

PDXSEN

Portland

Tue 5/5

3:45 pm-11:05 pm

3 stops23h 20m

$376

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Thu 11/20

3:10 pm-1:15 pm

3 stops38h 05m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 20 results
1
2

Best time to book a flight from Washington to Southend

Have a flexible travel schedule? Discover the best time to fly to Southend from Washington with our price prediction graph.
Estimated round-trip 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 Washington to London Southend Airport
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 Washington to Southend. 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 Washington to Southend that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Southend by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Traveling to a place near London Southend Airport?

Book flights to London Southend Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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 Washington to Southend

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

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.