In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Southend Airport to Washington, D.C. as you normally would.

Can I find deals for flights from Southend to Washington, D.C. that include hotel bookings?

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

How can I find direct flights from Southend to Washington, D.C.?

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

Can I find deals for business class flights from Southend to Washington, D.C.?

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

$538+ Flights from London Southend Airport to Washington, D.C.

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Cheap flight deals from Southend to Washington, D.C.

Cheapest flights from Southend to Washington, D.C.
Explore the most affordable flight options available from Southend to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

Sat 3/73:00 pm

SEN

IAD

3 stops35h 00m

Multiple Airlines

Sat 3/149:30 pm

IAD

SEN

2 stops15h 35m

Multiple Airlines

Deal found 1/20

$898

Wed 2/257:10 am

SEN

IAD

2 stops16h 20m

Multiple Airlines

Wed 2/258:45 pm

IAD

SEN

2 stops19h 15m

Multiple Airlines

Deal found 1/20

$1,344

Mon 3/27:15 am

SEN

IAD

1 stop14h 20m

Multiple Airlines

Sat 3/76:50 pm

IAD

SEN

1 stop17h 15m

Multiple Airlines

Deal found 1/20

$2,089

Best flights from Southend to Washington, D.C.
Discover carefully curated flight deals from Southend to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 21, 2026.

Sat 3/73:00 pm

SEN

IAD

3 stops35h 00m

Multiple Airlines

Sat 3/149:30 pm

IAD

SEN

2 stops15h 35m

Multiple Airlines

Deal found 1/20

$898

Wed 2/257:10 am

SEN

IAD

2 stops16h 20m

Multiple Airlines

Wed 2/258:45 pm

IAD

SEN

2 stops19h 15m

Multiple Airlines

Deal found 1/20

$1,344

Mon 3/27:15 am

SEN

IAD

1 stop14h 20m

Multiple Airlines

Sat 3/76:50 pm

IAD

SEN

1 stop17h 15m

Multiple Airlines

Deal found 1/20

$2,089

Last-minute flights from Southend to Washington, D.C.
Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated January 21, 2026 and is based on user searches.

Wed 2/257:10 am

SEN

IAD

2 stops16h 20m

Multiple Airlines

Wed 2/258:45 pm

IAD

SEN

2 stops19h 15m

Multiple Airlines

Deal found 1/20

$1,344

One-way flights from Southend to Washington, D.C.
Search for one-way flight options from Southend to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated January 21, 2026.

Fri 2/134:05 pm

SEN

IAD

3 stops28h 10m

Multiple Airlines

Deal found 1/20

$538

Mon 1/267:15 am

SEN

IAD

2 stops59h 00m

Multiple Airlines

Deal found 1/21

$543

Sun 2/157:10 am

SEN

IAD

2 stops18h 50m

Multiple Airlines

Deal found 1/20

$560

Thu 3/126:50 am

SEN

IAD

3 stops33h 55m

Multiple Airlines

Deal found 1/21

$589

Wed 2/47:10 am

SEN

IAD

2 stops18h 44m

Multiple Airlines

Deal found 1/19

$593

Fri 2/207:35 am

SEN

IAD

2 stops15h 55m

Multiple Airlines

Deal found 1/21

$656

Thu 2/126:05 pm

SEN

IAD

2 stops30h 15m

Multiple Airlines

Deal found 1/21

$727

Fri 5/2211:20 am

SEN

IAD

2 stops15h 55m

Multiple Airlines

Deal found 1/20

$752

Sat 1/313:00 pm

SEN

IAD

2 stops29h 50m

Multiple Airlines

Deal found 1/20

$777

Find flight deals from Southend to Washington, D.C.

Most accurate provider	OneTravel 3 stars
Most trusted provider	OneTravel 3 stars
Round-trip from	$898 (Mytrip)
One-way from	$538 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$634

Provider with most accurate pricing for London (LON)-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for London (LON)-Washington, D.C. (WAS) flights.

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From London Southend to Washington, D.C. (WAS)

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One-way flight from London Southend to Washington, D.C. (WAS)

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Highest demand for flights based on searches. 13% potential increase in price ($106 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in January 2026

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sat 3/7

3:00 pm-9:00 pm

3 stops35h 00m

Washington, D.C. Dulles Intl

Sat 3/14

9:30 pm-5:05 pm

2 stops15h 35m

$898

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Wed 2/25

7:10 am-6:30 pm

2 stops16h 20m

Washington, D.C. Dulles Intl

Wed 2/25

8:45 pm-9:00 pm

2 stops19h 15m

$1,344

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Mon 3/2

7:15 am-4:35 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Sat 3/7

6:50 pm-5:05 pm

1 stop17h 15m

$2,089

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Fri 2/13

4:05 pm-3:15 pm

3 stops28h 10m

$538

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Mon 1/26

7:15 am-1:15 pm

2 stops59h 00m

$543

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sun 2/15

7:10 am-9:00 pm

2 stops18h 50m

$560

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Fri 2/20

7:35 am-6:30 pm

2 stops15h 55m

$656

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 2/12

6:05 pm-7:20 pm

2 stops30h 15m

$727

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Fri 5/22

11:20 am-10:15 pm

2 stops15h 55m

$752

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sat 1/31

3:00 pm-3:50 pm

2 stops29h 50m

$777

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 12 results

Best time to book a flight from Southend to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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, D.C.

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 Southend to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Southend to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Southend to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southend to Washington, D.C..
Can I find deals for business class flights from Southend to Washington, D.C.?
Yes. Cheapflights offers flight deals from Southend to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Silver Spring

Hanover

Herndon

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

Largo

Bowie

McLean

Clinton

Upper Marlboro

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$538+ Cheap flights from Southend (SEN) to Washington, D.C. (WAS)

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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Southend to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Southend to Washington, D.C.

Cheapest flights from Southend to Washington, D.C.Explore the most affordable flight options available from Southend to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

Explore the most affordable flight options available from Southend to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

Find flight deals from Southend to Washington, D.C.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Southend to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Southend with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Southend Airport to Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Southend to Washington, D.C.. 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, D.C. that include hotel bookings?

How can I find direct flights from Southend to Washington, D.C.?

Can I find deals for business class flights from Southend to Washington, D.C.?

Traveling to a place near Washington, D.C.?

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Alternative routes for Southend to Washington, D.C.

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Cheapest flights from Southend to Washington, D.C.
Explore the most affordable flight options available from Southend to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.