HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southend

$292+ 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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SEN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Southend with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 August 18, 2025.

Round-trip from

$1,264
(Mytrip)

One-way from

$292
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$684
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. 11% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find 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 August 18, 2025.

This Mytrip deal was found by Cheapflights users on 8/15. 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.
Thu 9/411:15 pmIAD - SEN
2 stops15h 20mMultiple Airlines
Thu 9/251:55 pmSEN - IAD
2 stops30h 25mMultiple Airlines
Deal found 8/15$1,264

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 August 18, 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

Thu 9/4

11:15 pm-7:35 pm

2 stops15h 20m

London Southend

Thu 9/25

1:55 pm-3:20 pm

2 stops30h 25m

$1,264

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Wed 11/26

10:30 pm-12:30 pm

3 stops33h 00m

$292

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Thu 10/2

10:20 pm-9:00 am

3 stops29h 40m

$293

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Wed 10/15

10:20 pm-1:00 pm

3 stops33h 40m

$294

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Tue 10/7

5:00 pm-12:55 pm

3 stops38h 55m

$305

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Wed 10/1

5:50 pm-8:50 pm

3 stops22h 00m

$312

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Wed 10/8

5:50 pm-8:50 pm

3 stops22h 00m

$315

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Wed 9/24

9:15 am-3:45 pm

3 stops49h 30m

$332

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sat 11/29

5:30 pm-8:15 pm

3 stops21h 45m

$335

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Tue 9/30

5:00 pm-11:05 pm

3 stops25h 05m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

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
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Orpington
Watford
Gatwick
Borehamwood
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes
Sutton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.