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Southend

$375+ Cheap flights from Dulles Intl (IAD) 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SEN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Southend

Cheapest flights from Dulles Intl to Southend
Explore the most affordable flight options available from Dulles Intl to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:05 pmIAD - SEN
3 stops24h 55mMultiple Airlines
Tue 12/168:00 amSEN - IAD
3 stops42h 00mMultiple Airlines
Deal found 12/10$1,053
This Mytrip deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/219:45 amIAD - SEN
2 stops19h 45mMultiple Airlines
Wed 12/247:10 amSEN - IAD
2 stops16h 35mMultiple Airlines
Deal found 12/10$2,248

Find flight deals from Dulles Intl to Southend

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Southend (SEN). 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 December 12, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$836
(Mytrip)

One-way from

$375
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$977
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
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From Washington, D.C. Dulles Intl to London Southend
Search Deals
One-way flight from Washington, D.C. Dulles Intl to London Southend
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 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

 
Customize your flight search to find flights from Dulles Intl to Southend 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 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Southend Airport that are best for you.

Fly from

Dulles Intl

Fly to

Southend

Route

Depart

Return

Price

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Mon 1/12

8:45 pm-10:25 pm

2 stops20h 40m

London Southend

Tue 1/20

3:55 pm-9:00 pm

3 stops34h 05m

$836

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sun 3/15

8:40 pm-2:50 pm

2 stops14h 10m

London Southend

Fri 3/20

6:40 am-7:30 pm

2 stops16h 50m

$886

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sun 12/21

9:45 am-10:30 am

2 stops19h 45m

London Southend

Wed 12/24

7:10 am-6:45 pm

2 stops16h 35m

$2,248

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Fri 1/9

10:30 pm-12:15 pm

2 stops32h 45m

$375

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sun 2/15

10:30 pm-11:00 pm

3 stops19h 30m

$385

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Wed 1/14

10:30 pm-9:25 pm

3 stops41h 55m

$385

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Fri 2/6

10:30 pm-12:15 pm

2 stops32h 45m

$387

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Thu 1/15

5:30 pm-12:15 pm

3 stops37h 45m

$393

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sun 3/15

6:05 pm-10:05 pm

2 stops24h 00m

$395

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Tue 4/7

5:20 pm-11:05 pm

3 stops24h 45m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 14 results
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Best time to book a flight from Dulles Intl to Southend

Have a flexible travel schedule? Discover the best time to fly to Southend from Dulles Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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 Dulles Intl to Southend that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Southend flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Southend?

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

  • Can I find deals for business class flights from Dulles Intl to Southend?

    Yes. Cheapflights offers flight deals from Dulles Intl 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.

Traveling to a place near London Southend Airport?

Book flights to London Southend Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley
Folkestone
Eastbourne

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