In terms of precipitation, rainfall in London Southend Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Southend Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Southend Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from WA to SEN?

When flying from State of Washington to London Southend Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$349+ Flights from Washington to London Southend Airport

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Cheap flight deals from Washington to Southend

Best flights from Washington to Southend
Discover carefully curated flight deals from Washington to Southend that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Sat 1/242:35 pmSEA - SEN

2 stops18h 30mMultiple Airlines

Mon 2/27:15 amSEN - SEA

2 stops17h 45mMultiple Airlines

Deal found 12/24

$640

Last-minute flights from Washington to Southend
Discover last-minute flight deals from Washington to Southend. Data last updated December 26, 2025 and is based on user searches.

Sat 1/242:35 pmSEA - SEN

2 stops18h 30mMultiple Airlines

Mon 2/27:15 amSEN - SEA

2 stops17h 45mMultiple Airlines

Deal found 12/24

$640

One-way flights from Washington to Southend
Search for one-way flight options from Washington to Southend. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Tue 5/53:40 pmSEA - SEN

2 stops22h 40mMultiple Airlines

Deal found 12/25

$349

Tue 3/243:35 pmSEA - SEN

3 stops24h 20mMultiple Airlines

Deal found 12/24

$350

Sun 3/229:05 pmSEA - SEN

3 stops18h 55mMultiple Airlines

Deal found 12/24

$352

Wed 4/156:45 pmSEA - SEN

2 stops33h 10mMultiple Airlines

Deal found 12/25

$353

Fri 1/1611:05 pmSEA - SEN

3 stops34h 00mMultiple Airlines

Deal found 12/25

$366

Thu 1/152:35 pmSEA - SEN

3 stops22h 50mMultiple Airlines

Deal found 12/25

$370

Sun 2/229:41 pmSEA - SEN

3 stops38h 04mMultiple Airlines

Deal found 12/25

$374

Wed 1/217:18 amPDX - SEN

3 stops45h 32mMultiple Airlines

Deal found 12/25

$383

Sun 3/153:35 pmSEA - SEN

3 stops24h 25mMultiple Airlines

Deal found 12/25

$388

Fri 2/67:21 amPDX - SEN

3 stops44h 54mMultiple Airlines

Deal found 12/24

$388

Mon 2/2310:53 amSEA - SEN

2 stops24h 52mMultiple Airlines

Deal found 12/24

$398

Tue 2/1011:06 amSEA - SEN

2 stops40h 54mMultiple Airlines

Deal found 12/26

$403

Find flight deals from Washington to Southend

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$640 (Mytrip)
One-way from	$349 (Kiwi.com)
Popular in	June
Cheapest in	November
Average price	$986

Provider with most accurate pricing for Seattle/Tacoma Intl-London (LON) flight deals.

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From Washington to London Southend

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One-way flight from Washington to London Southend

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Highest demand for flights based on searches. 15% potential increase in price ($140 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sat 1/24

2:35 pm-5:05 pm

2 stops18h 30m

London Southend

Mon 2/2

7:15 am-5:00 pm

2 stops17h 45m

$640

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Tue 3/24

3:35 pm-10:55 pm

3 stops24h 20m

$350

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sun 3/22

9:05 pm-11:00 pm

3 stops18h 55m

$352

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Fri 1/16

11:05 pm-5:05 pm

3 stops34h 00m

$366

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Thu 1/15

2:35 pm-9:25 pm

3 stops22h 50m

$370

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sun 2/22

9:41 pm-7:45 pm

3 stops38h 04m

$374

PortlandLondon

PDX - SEN

PDXSEN

Portland

Wed 1/21

7:18 am-12:50 pm

3 stops45h 32m

$383

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Sun 3/15

3:35 pm-11:00 pm

3 stops24h 25m

$388

PortlandLondon

PDX - SEN

PDXSEN

Portland

Fri 2/6

7:21 am-12:15 pm

3 stops44h 54m

$388

SeattleLondon

SEA - SEN

SEASEN

Seattle/Tacoma Intl

Mon 2/23

10:53 am-7:45 pm

2 stops24h 52m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 20 results

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

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.

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Horley

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Folkestone

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Sutton

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$349+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Southend with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington to Southend

Best flights from Washington to SouthendDiscover carefully curated flight deals from Washington to Southend that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Discover carefully curated flight deals from Washington to Southend that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

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 December 26, 2025.

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Most trusted provider

Round-trip from

One-way from

Popular in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to London Southend Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Washington to London Southend Airport

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?

How can I find direct flights from Washington to Southend?

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

Traveling to a place near London Southend Airport?

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Best flights from Washington to Southend
Discover carefully curated flight deals from Washington to Southend that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.