In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 holiday 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.

£415+ Cheap Flights from London Southend Airport to Washington, D.C.

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

Enter your travel dates to find the best prices.

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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 25 April 2026.

Thu 23/406:30

SEN

IAD

3 stops38h 15m

Multiple Airlines

Tue 28/421:05

IAD

SEN

3 stops20h 55m

Multiple Airlines

Deal found 21/4£646

Thu 14/510:10

SEN

IAD

1 stop14h 25m

Multiple Airlines

Thu 28/518:15

IAD

SEN

1 stop11h 30m

Multiple Airlines

Deal found 22/4£761

Thu 7/510:10

SEN

IAD

1 stop14h 25m

Multiple Airlines

Sun 10/518:15

IAD

SEN

1 stop11h 15m

Multiple Airlines

Deal found 23/4£789

Mon 15/611:10

SEN

IAD

1 stop13h 25m

Multiple Airlines

Tue 23/618:15

IAD

SEN

1 stop12h 30m

Multiple Airlines

Deal found 23/4£852

Sun 7/607:25

SEN

IAD

1 stop13h 40m

Multiple Airlines

Sun 14/618:15

IAD

SEN

1 stop11h 15m

Multiple Airlines

Deal found 23/4£962

Sun 21/607:25

SEN

IAD

1 stop17h 10m

Multiple Airlines

Sun 28/618:15

IAD

SEN

1 stop11h 15m

Multiple Airlines

Deal found 20/4£967

Sat 18/708:40

SEN

IAD

2 stops15h 20m

Multiple Airlines

Sat 18/722:35

IAD

SEN

2 stops18h 25m

Multiple Airlines

Deal found 20/4£1,091

Sun 5/707:35

SEN

IAD

2 stops16h 40m

Multiple Airlines

Sun 5/722:35

IAD

SEN

2 stops15h 15m

Multiple Airlines

Deal found 20/4£1,382

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

Round-trip from	£761
One-way from	£415
Popular in	July
Cheapest in	February
Average price	£528

14/5-28/5
2 total stops
25h 55m total
London to Washington, D.C.

Search Deals

5/5
3 total stops
37h 10m total
London to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£44 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 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

Cheapest return flight

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 14/5

10:10-19:35

1 stop14h 25m

Washington, D.C. Dulles Intl

Thu 28/5

18:15-10:45

1 stop11h 30m

£761

Fastest return journey

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 7/5

10:10-19:35

1 stop14h 25m

Washington, D.C. Dulles Intl

Sun 10/5

18:15-10:30

1 stop11h 15m

£789

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Mon 15/6

11:10-19:35

1 stop13h 25m

Washington, D.C. Dulles Intl

Tue 23/6

18:15-11:45

1 stop12h 30m

£852

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sun 21/6

07:25-19:35

1 stop17h 10m

Washington, D.C. Dulles Intl

Sun 28/6

18:15-10:30

1 stop11h 15m

£967

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sat 18/7

08:40-19:00

2 stops15h 20m

Washington, D.C. Dulles Intl

Sat 18/7

22:35-22:00

2 stops18h 25m

£1,091

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sun 7/6

16:25-15:10

2 stops51h 45m

Washington, D.C. Dulles Intl

Sun 14/6

18:15-10:30

1 stop11h 15m

£1,120

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Wed 10/6

08:25-19:00

2 stops15h 35m

Washington, D.C. Dulles Intl

Wed 10/6

22:35-21:50

2 stops18h 15m

£1,568

Cheapest one-way

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 7/5

06:30-15:10

3 stops37h 40m

£419

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Mon 1/6

11:10-10:46

3 stops28h 36m

£424

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sat 2/5

16:50-10:46

3 stops46h 56m

£428

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 19 resultsSorted by cheapest first

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.

SEN-WAS

SEN-IAD

Estimated return 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.

SEN-WAS

SEN-IAD

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 holiday 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.

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Washington, D.C. flight routes

Alternative routes for Southend to Washington, D.C.

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London City to Reagan-National flights

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Can Cheapflights find flights from Southend to Washington, D.C. with no change fees?

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Cheap flights from London Southend Airport to Washington, D.C. from £415

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.

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 25 April 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 25 April 2026.

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 stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2026.

Discover carefully curated flight deals from Southend to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2026.

Last-minute flights from Southend to Washington, D.C.Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated 25 April 2026 and is based on user searches.

Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated 25 April 2026 and is based on user searches.

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 25 April 2026.

Search for one-way flight options from Southend to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 25 April 2026.

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

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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.?

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

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Alternative routes for Southend to Washington, D.C.

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Direct flights to United States

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Southend and Washington, D.C. flights

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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 25 April 2026.

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 stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2026.

Last-minute flights from Southend to Washington, D.C.
Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated 25 April 2026 and is based on user searches.

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 25 April 2026.