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Find cheap flights from London Southend to Washington, D.C. from £361

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Southend to Dulles Intl departing on 19/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 27/4
Sat 4/5

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C., as well as popular online travel agencies
In the last 7 days, travellers have searched 47,025,654 times on KAYAK, and here's why:

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Flights from Southend to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Southend to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London Southend Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London Southend Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Southend Airport to Washington, D.C. Dulles Intl Airport is September, where tickets cost £495 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is £632 and £615 respectively.

How far in advance should I book a flight from London Southend Airport to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Southend Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London Southend Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 86 days before departure.

Good to know - Cheap tickets from London Southend to Washington, D.C.

Cheapest flight

£361
Flight from London Southend to Washington, D.C.

When to book flights from Southend to Dulles Intl

Are your dates flexible? Find out the best times to travel from Southend to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Southend to Washington, D.C. flights

  • What is the cheapest flight from London Southend Airport to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from London Southend Airport to Washington, D.C. Dulles Intl Airport was £456 for a one-way ticket.

  • Which aircraft models fly most regularly from London Southend to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from London Southend to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Southend to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Southend to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from London Southend is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Southend to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington, D.C. with an airline and back to London Southend with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Southend to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from London Southend up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from London to Washington, D.C.

Cheapest flights to Washington, D.C. from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Washington, D.C. found on KAYAK in the last 72 hours.
19/5Sun
2 stops
31h 00mSEN-IAD
£361
8/6Sat
3 stops
39h 25mSEN-IAD
£377
1/5Wed
2 stops
32h 25mSEN-IAD
£480
15/5Wed
2 stops
32h 25mSEN-IAD
£492
3/5Fri
3 stops
27h 25mSEN-IAD
£502
5/5Sun
3 stops
28h 45mSEN-IAD
£520
3/5Fri
2 stops
50h 55mSEN-IAD
£520
21/7Sun
2 stops
34h 25mSEN-IAD
£524
7/4Sun
3 stops
28h 45mSEN-IAD
£528
7/4Sun
3 stops
28h 45mSEN-IAD
£532

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London Southend - Washington, D.C. Flights

Departure:

London Southend (SEN)United Kingdom

Destination:

Washington, D.C. (IAD)United States

Cabin classes: