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$485+ Cheap flights from Southend (SEN) to Washington

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — SEA
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap 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 February 11, 2026.

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.
Fri 3/276:40 am
SEN
-
SEA
2 stops21h 05m
Multiple Airlines
Sat 4/113:40 pm
SEA
-
SEN
3 stops19h 55m
Multiple Airlines
Deal found 2/11$1,717
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:50 am
SEN
-
SEA
2 stops34h 41m
Multiple Airlines
Sun 3/84:05 pm
SEA
-
SEN
1 stop15h 45m
Multiple Airlines
Deal found 2/10$1,756
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:25 am
SEN
-
SEA
2 stops16h 15m
Multiple Airlines
Sat 4/185:40 am
SEA
-
SEN
3 stops20h 45m
Multiple Airlines
Deal found 2/8$1,774
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/262:35 pm
SEN
-
SEA
2 stops37h 10m
Multiple Airlines
Thu 4/21:30 pm
SEA
-
SEN
1 stop13h 15m
Multiple Airlines
Deal found 2/9$1,940

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,756
(Kiwi.com)

One-way from

$485
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$635
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
Search Deals
From London Southend to Washington
Search Deals
One-way flight from London Southend to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 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 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 2,558,603 searches. Data last updated February 11, 2026.
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

Fri 3/27

6:40 am-8:45 pm

2 stops21h 05m

Seattle/Tacoma Intl

Sat 4/11

3:40 pm-7:35 pm

3 stops19h 55m

$1,717

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 3/5

6:50 am-9:31 am

2 stops34h 41m

Seattle/Tacoma Intl

Sun 3/8

4:05 pm-2:50 pm

1 stop15h 45m

$1,756

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 4/12

7:25 am-3:40 pm

2 stops16h 15m

Seattle/Tacoma Intl

Sat 4/18

5:40 am-10:25 am

3 stops20h 45m

$1,774

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 3/26

2:35 pm-8:45 pm

2 stops37h 10m

Seattle/Tacoma Intl

Thu 4/2

1:30 pm-10:45 am

1 stop13h 15m

$1,940

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 3/9

7:15 am-8:51 am

3 stops32h 36m

$485

LondonSeattle

SEN - SEA

SENSEA

London Southend

Wed 2/25

7:10 am-2:19 pm

2 stops39h 09m

$524

LondonSeattle

SEN - SEA

SENSEA

London Southend

Tue 4/28

8:25 pm-5:10 pm

3 stops28h 45m

$528

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 4/5

11:00 am-12:14 pm

3 stops57h 14m

$530

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 3/19

6:50 am-5:09 pm

2 stops41h 19m

$545

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 3/8

7:10 am-9:28 am

3 stops34h 18m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 11 results
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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 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 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 vacation 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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