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.

£355+ 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 11 September 2026.

Sun 6/1215:35 -

2 stops31h 55m

Sun 13/1219:40 -

2 stops14h 10m

Deal found 7/9£584

Wed 23/1207:10 -

2 stops16h 20m

Wed 30/1219:40 -

2 stops17h 55m

Deal found 8/9£610

Sat 21/1107:15 -

2 stops16h 15m

Sun 29/1119:40 -

2 stops14h 10m

Deal found 7/9£671

Thu 8/1010:10 -

1 stop14h 25m

Sun 18/1018:15 -

1 stop11h 15m

Deal found 10/9£705

Thu 10/906:30 -

2 stops19h 05m

Mon 14/917:40 -

2 stops14h 50m

Deal found 6/9£763

Thu 24/907:20 -

1 stop17h 05m

Wed 30/915:25 -

2 stops15h 10m

Deal found 7/9£802

Fri 2/1006:30 -

2 stops17h 30m

Wed 7/1018:15 -

1 stop13h 45m

Deal found 9/9£816

Wed 23/1207:10 -

2 stops16h 20m

Sat 2/120:50 -

2 stops16h 55m

Deal found 9/9£853

Wed 23/1207:10 -

2 stops16h 20m

Sun 27/1217:15 -

2 stops16h 20m

Deal found 8/9£901

Tue 22/1208:15 -

1 stop12h 30m

Sun 3/121:30 -

2 stops15h 15m

Deal found 10/9£940

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

Round-trip from	£584
One-way from	£355
Popular in	June
Cheapest in	February
Average price	£479

6/12-13/12
4 total stops
46h 05m total
London to Washington, D.C.

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10/12-31/12
3 total stops
36h 45m total
London to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£39 potential increase over avg. return price).

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Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

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Average for round-trip flights in September 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.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Thu 21/1

17:20-20:35

2 stops32h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£355

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Thu 29/10

06:35-17:20

2 stops38h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£357

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Tue 3/11

15:50-16:20

3 stops53h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£358

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Mon 23/11

07:20-14:45

3 stops36h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£366

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Sat 12/12

17:00-19:05

2 stops31h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£366

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Sat 7/11

17:00-20:35

3 stops32h 35m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£371

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Thu 12/11

17:20-19:20

3 stops31h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£374

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Sun 13/12

17:15-15:15

2 stops27h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£378

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Thu 26/11

17:20-20:35

2 stops32h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£381

LondonWashington, D.C.

SEN London Southend - IAD Washington, D.C. Dulles Intl

SENIAD

London Southend

Tue 22/9

06:30-15:10

2 stops37h 40m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£406

Flights are sorted by cheapest return flights first.

Deals found on 8/9

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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Cheap flights from London Southend Airport to Washington, D.C. from £355

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/1. 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 11 September 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 11 September 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 11 September 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 11 September 2026.

Last-minute flights from Southend to Washington, D.C.Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated 11 September 2026 and is based on user searches.

Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated 11 September 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 11 September 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 11 September 2026.

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

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Cheapflights Insights

Related info for your journey

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 11 September 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 11 September 2026.

Last-minute flights from Southend to Washington, D.C.
Discover last-minute flight deals from Southend to Washington, D.C.. Data last updated 11 September 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 11 September 2026.