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Cheap flights from London Southend Airport to Washington, D.C. from £411

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — WAS
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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 June 2026.

Wed 22/712:15
SEN
-
IAD
2 stops15h 00m
Multiple Airlines
Wed 5/820:30
IAD
-
SEN
2 stops15h 10m
Multiple Airlines
Deal found 7/6£757
Tue 25/806:30
SEN
-
IAD
2 stops19h 54m
Multiple Airlines
Mon 31/815:45
IAD
-
SEN
2 stops14h 35m
Multiple Airlines
Deal found 7/6£834
Mon 27/707:45
SEN
-
IAD
2 stops32h 50m
Multiple Airlines
Wed 29/720:30
IAD
-
SEN
2 stops15h 10m
Multiple Airlines
Deal found 9/6£851
Wed 17/620:15
SEN
-
IAD
3 stops47h 55m
Multiple Airlines
Tue 30/608:25
IAD
-
SEN
3 stops22h 20m
Multiple Airlines
Deal found 9/6£887
Wed 17/608:25
SEN
-
IAD
2 stops17h 10m
Multiple Airlines
Fri 3/722:50
IAD
-
SEN
2 stops17h 55m
Multiple Airlines
Deal found 6/6£908
Wed 15/707:05
SEN
-
IAD
2 stops37h 05m
Multiple Airlines
Wed 29/718:15
IAD
-
SEN
1 stop17h 25m
Multiple Airlines
Deal found 8/6£964
Wed 5/812:15
SEN
-
IAD
1 stop12h 20m
Multiple Airlines
Sun 9/818:15
IAD
-
SEN
1 stop11h 15m
Multiple Airlines
Deal found 8/6£1,017
Sun 19/707:35
SEN
-
IAD
1 stop13h 00m
Multiple Airlines
Sat 25/717:40
IAD
-
SEN
1 stop11h 35m
Multiple Airlines
Deal found 9/6£1,094
Tue 30/607:00
SEN
-
IAD
2 stops17h 00m
Multiple Airlines
Thu 9/717:45
IAD
-
SEN
2 stops14h 15m
Multiple Airlines
Deal found 7/6£1,129

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

Discover tips and strategies to find the most affordable flight options for your journey from Southend (SEN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 June 2026.

Round-trip from

£757

One-way from

£411

Popular in

June

Cheapest in

February

Average price

£593
22/7-5/8
  • 22/7-5/8
  • 4 total stops
  • 30h 10m total
  • London to Washington, D.C.
Search Deals
6/10
  • 6/10
  • 3 total stops
  • 27h 35m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend to Washington, D.C. 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 858,174 searches. Data last updated 11 June 2026.
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

Mon 27/7

07:45-11:35

2 stops32h 50m

Washington, D.C. Dulles Intl

Wed 29/7

20:30-16:40

2 stops15h 10m

£851

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Wed 22/7

12:15-19:35

1 stop12h 20m

Washington, D.C. Dulles Intl

Wed 5/8

21:45-16:40

1 stop13h 55m

£944
Fastest return journey

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Wed 5/8

12:15-19:35

1 stop12h 20m

Washington, D.C. Dulles Intl

Sun 9/8

18:15-10:30

1 stop11h 15m

£1,017

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sun 19/7

07:35-15:35

1 stop13h 00m

Washington, D.C. Dulles Intl

Sat 25/7

17:40-10:15

1 stop11h 35m

£1,094

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Tue 30/6

07:00-19:00

2 stops17h 00m

Washington, D.C. Dulles Intl

Thu 9/7

17:45-13:00

2 stops14h 15m

£1,129

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Fri 26/6

11:20-19:35

1 stop13h 15m

Washington, D.C. Dulles Intl

Thu 2/7

18:15-10:45

1 stop11h 30m

£1,248

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Wed 15/7

12:15-16:05

1 stop32h 50m

Washington, D.C. Dulles Intl

Wed 29/7

21:45-16:40

1 stop13h 55m

£1,962
Cheapest one-way

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Fri 18/9

22:00-20:05

3 stops27h 05m

£419

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Tue 6/10

20:25-15:30

2 stops24h 05m

£424

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Sun 11/10

17:30-15:30

3 stops27h 00m

£424

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 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.
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, 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?

    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.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Alexandria

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How does Cheapflights help users find flights from Southend to Washington, D.C.?

Cheapflights makes it easy to find Southend to Washington, D.C. flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Southend to Washington, D.C.?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Southend to Washington, D.C..

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southend to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Southend to Washington, D.C. become cheaper?

Yes! Start tracking prices for Southend to Washington, D.C. flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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