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Southend

$325+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEN
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap 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 February 11, 2026.

This Mytrip deal was found by Cheapflights users on 2/10. 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 2/252:35 pm
SEA
-
SEN
2 stops18h 40m
Multiple Airlines
Tue 3/107:35 am
SEN
-
SEA
2 stops17h 25m
Multiple Airlines
Deal found 2/10$696
This Mytrip deal was found by Cheapflights users on 2/8. 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.
Sun 3/83:35 pm
SEA
-
SEN
2 stops16h 15m
Multiple Airlines
Sun 3/155:25 pm
SEN
-
SEA
2 stops31h 35m
Multiple Airlines
Deal found 2/8$750
This Mytrip deal was found by Cheapflights users on 2/10. 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 3/113:35 pm
SEA
-
SEN
2 stops22h 25m
Multiple Airlines
Wed 3/187:10 am
SEN
-
SEA
2 stops17h 50m
Multiple Airlines
Deal found 2/10$825
This Mytrip deal was found by Cheapflights users on 2/8. 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 4/18:00 am
SEA
-
SEN
3 stops29h 25m
Multiple Airlines
Mon 5/118:20 pm
SEN
-
SEA
3 stops45h 20m
Multiple Airlines
Deal found 2/8$872
This Mytrip deal was found by Cheapflights users on 2/10. 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 3/146:40 pm
SEA
-
SEN
2 stops19h 10m
Multiple Airlines
Mon 3/237:15 am
SEN
-
SEA
2 stops16h 25m
Multiple Airlines
Deal found 2/10$1,106
This Mytrip deal was found by Cheapflights users on 2/11. 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 2/145:40 pm
SEA
-
SEN
2 stops19h 10m
Multiple Airlines
Mon 2/167:15 am
SEN
-
SEA
2 stops16h 25m
Multiple Airlines
Deal found 2/11$1,290
This Mytrip deal was found by Cheapflights users on 2/9. 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.
Tue 3/243:45 pm
PDX
-
SEN
3 stops24h 20m
Multiple Airlines
Sun 3/297:25 am
SEN
-
PDX
3 stops42h 35m
Multiple Airlines
Deal found 2/9$1,305
This Mytrip deal was found by Cheapflights users on 2/7. 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 3/213:45 pm
PDX
-
SEN
2 stops21h 25m
Multiple Airlines
Fri 3/276:40 am
SEN
-
PDX
2 stops18h 20m
Multiple Airlines
Deal found 2/7$3,589

Find flight deals from Washington to Southend

Keep the following information in mind while searching for Washington to Southend flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$696
(Mytrip)

One-way from

$347
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$684
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 ($133 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 11, 2026.
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

Wed 2/25

2:35 pm-5:15 pm

2 stops18h 40m

London Southend

Tue 3/10

7:35 am-6:00 pm

2 stops17h 25m

$696

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sun 3/8

3:35 pm-2:50 pm

2 stops16h 15m

London Southend

Sun 3/15

5:25 pm-6:00 pm

2 stops31h 35m

$750

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-9:00 pm

2 stops22h 25m

London Southend

Wed 3/18

7:10 am-6:00 pm

2 stops17h 50m

$825

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Wed 4/1

8:00 am-9:25 pm

3 stops29h 25m

London Southend

Mon 5/11

8:20 pm-9:40 am

3 stops45h 20m

$872

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sat 3/14

6:40 pm-8:50 pm

2 stops19h 10m

London Southend

Mon 3/23

7:15 am-4:40 pm

2 stops16h 25m

$1,106

PortlandLondon

PDX - SEN

PDXSEN

Portland

Tue 3/24

3:45 pm-11:05 pm

3 stops24h 20m

London Southend

Sun 3/29

7:25 am-6:00 pm

3 stops42h 35m

$1,305

PortlandLondon

PDX - SEN

PDXSEN

Portland

Sat 3/21

3:45 pm-8:10 pm

2 stops21h 25m

London Southend

Fri 3/27

6:40 am-6:00 pm

2 stops18h 20m

$3,589

PortlandLondon

PDX - SEN

PDXSEN

Portland

Thu 4/16

3:30 pm-8:00 am

3 stops32h 30m

$325

PortlandLondon

PDX - SEN

PDXSEN

Portland

Tue 3/24

3:45 pm-11:05 pm

3 stops24h 20m

$347

PortlandLondon

PDX - SEN

PDXSEN

Portland

Tue 5/12

3:30 pm-11:00 pm

3 stops23h 30m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 25 results
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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
Ilford
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Southend

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