Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Southend Airport to Washington, D.C. from £328

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Southend Airport to Washington, D.C. departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from London Southend Airport to Washington, D.C.

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:55 - 17:00
SEN
-
IAD
29h 05m
2 stops
Multiple Airlines Logo
20:20 - 19:35
IAD
-
SEN
18h 15m
2 stops
£754Multiple Airlines
Fri, 11 Sep - Sat, 19 Sep
Multiple Airlines Logo
10:10 - 19:35
SEN
-
IAD
14h 25m
1 stop
Multiple Airlines Logo
18:15 - 10:45
IAD
-
SEN
11h 30m
1 stop
£834Multiple Airlines
Thu, 3 Sep - Thu, 17 Sep
Multiple Airlines Logo
16:35 - 15:10
SEN
-
IAD
27h 35m
2 stops
Multiple Airlines Logo
21:45 - 16:40
IAD
-
SEN
13h 55m
1 stop
£839Multiple Airlines
Thu, 20 Aug - Wed, 26 Aug
Multiple Airlines Logo
16:35 - 15:10
SEN
-
IAD
27h 35m
2 stops
Multiple Airlines Logo
18:15 - 10:45
IAD
-
SEN
11h 30m
1 stop
£901Multiple Airlines
Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
16:35 - 15:10
SEN
-
IAD
27h 35m
2 stops
Multiple Airlines Logo
18:15 - 10:45
IAD
-
SEN
11h 30m
1 stop
£901Multiple Airlines
Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
06:30 - 19:00
SEN
-
IAD
17h 30m
2 stops
Multiple Airlines Logo
17:05 - 22:10
IAD
-
SEN
24h 05m
2 stops
£918Multiple Airlines
Thu, 23 Jul - Sat, 1 Aug
Multiple Airlines Logo
20:25 - 20:35
SEN
-
IAD
29h 10m
2 stops
Multiple Airlines Logo
09:55 - 23:15
IAD
-
SEN
32h 20m
3 stops
£943Multiple Airlines
Tue, 20 Oct - Thu, 5 Nov
Multiple Airlines Logo
06:30 - 20:35
SEN
-
IAD
19h 05m
2 stops
Multiple Airlines Logo
17:45 - 13:00
IAD
-
SEN
14h 15m
2 stops
£981Multiple Airlines
Thu, 6 Aug - Thu, 13 Aug
Multiple Airlines Logo
06:30 - 19:00
SEN
-
IAD
17h 30m
2 stops
Multiple Airlines Logo
17:45 - 13:00
IAD
-
SEN
14h 15m
2 stops
£1,277Multiple Airlines
Thu, 23 Jul - Thu, 30 Jul
Multiple Airlines Logo
13:45 - 16:05
SEN
-
IAD
31h 20m
1 stop
Multiple Airlines Logo
21:45 - 16:40
IAD
-
SEN
13h 55m
1 stop
£1,839Multiple Airlines
Thu, 20 Aug - Wed, 26 Aug

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

momondo Fare Finder

 
Customise your flight search to find flights from London Southend Airport to Washington, D.C. Dulles Intl Airport 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, momondo users made 279,928 searches. Data last updated 8 July 2026.
Use the filters below to find and compare flights from London Southend Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Fri 11/9

16:55-17:00

2 stops29h 05m

Washington, D.C. Dulles Intl

Sat 19/9

20:20-19:35

2 stops18h 15m

£754
Fastest return journey

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 3/9

10:10-19:35

1 stop14h 25m

Washington, D.C. Dulles Intl

Thu 17/9

18:15-10:45

1 stop11h 30m

£834

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 20/8

16:35-15:10

2 stops27h 35m

Washington, D.C. Dulles Intl

Wed 26/8

21:45-16:40

1 stop13h 55m

£839

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 20/8

16:35-15:10

2 stops27h 35m

Washington, D.C. Dulles Intl

Thu 27/8

18:15-10:45

1 stop11h 30m

£901

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 20/8

16:35-15:10

2 stops27h 35m

Washington, D.C. Dulles Intl

Thu 27/8

18:15-10:45

1 stop11h 30m

£901

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 23/7

06:30-19:00

2 stops17h 30m

Washington, D.C. Dulles Intl

Sat 1/8

17:05-22:10

2 stops24h 05m

£918

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Tue 20/10

20:25-20:35

2 stops29h 10m

Washington, D.C. Dulles Intl

Thu 5/11

09:55-23:15

3 stops32h 20m

£943

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 6/8

06:30-20:35

2 stops19h 05m

Washington, D.C. Dulles Intl

Thu 13/8

17:45-13:00

2 stops14h 15m

£981

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 23/7

06:30-19:00

2 stops17h 30m

Washington, D.C. Dulles Intl

Thu 30/7

17:45-13:00

2 stops14h 15m

£1,277

LondonWashington, D.C.

SEN - IAD

SENIAD

London Southend

Thu 20/8

13:45-16:05

1 stop31h 20m

Washington, D.C. Dulles Intl

Wed 26/8

21:45-16:40

1 stop13h 55m

£1,839

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from London Southend Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Friday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from London Southend Airport. The lowest ticket price found for a Friday departure recently was £571. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from London Southend Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £614.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is at midday when flights can be purchased for as low as £574. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the morning when prices are around £585.

When to book flights from London Southend Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Southend Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Southend Airport to Washington, D.C. Dulles Intl Airport (SEN to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Southend Airport to Washington, D.C. Dulles Intl Airport

Fastest flight time

17h 30m

Direct flights

None
The fastest flight from London Southend Airport to Washington, D.C. Dulles Intl Airport takes 17h 30m
There are no direct flights from London Southend Airport to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from London Southend Airport to Washington, D.C. Dulles Intl Airport.
Search flight deals

Frequently asked questions about flying from London Southend Airport to Washington, D.C. Dulles Intl Airport

  • How far is London Southend to Washington, D.C. Dulles Intl by plane?

    A flight from London Southend to Washington, D.C. Dulles Intl will travel around 3709.0 mi. 17h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Southend Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from London Southend Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How old do you have to be to fly from London Southend Airport to Washington, D.C. Dulles Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Southend Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
College Park
Springfield
Fairfax
Arlington
Gettysburg
Linthicum Heights
National Harbor
Front Royal
Winchester
Ellicott City
Cambridge
Glen Burnie
Westminster
Laurel
Lutherville Timonium
Lexington Park
Leesburg
Owings Mills
Woodbridge

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington, D.C.?

It is quick and easy to find London to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from London to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Washington, D.C.?

momondo helps you find the best flight between London and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from London and alert you when they change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 7/8
Fri 14/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.