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

Prices for flights from Washington, D.C. to London Southend Airport were last updated today.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London Southend Airport.

What documentation or ID do you need to fly to London Southend Airport?

The necessary travel and health documents for your London Southend Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$270 Cheap Flights from Washington, D.C. to London Southend Airport in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 pm - 5:15 pm

BWI

SEN

16h 35m2 stops

5:25 pm - 6:40 pm

SEN

BWI

30h 15m2 stops

$647Multiple Airlines

Wed, Jan 7 - Sun, Jan 11

7:40 pm - 8:10 pm

BWI

SEN

19h 30m2 stops

5:25 pm - 6:40 pm

SEN

BWI

30h 15m2 stops

$656Multiple Airlines

Sat, Feb 14 - Sun, Feb 22

6:05 pm - 10:00 am

IAD

SEN

10h 55m1 stop

7:35 am - 4:05 pm

SEN

IAD

13h 30m1 stop

$2,385Multiple Airlines

Fri, Dec 26 - Tue, Dec 30

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLondon

BWI - SEN

BWISEN

Baltimore/Washington

Wed 1/7

7:40 pm-5:15 pm

2 stops16h 35m

London Southend

Sun 1/11

5:25 pm-6:40 pm

2 stops30h 15m

$647

BaltimoreLondon

BWI - SEN

BWISEN

Baltimore/Washington

Sat 2/14

7:40 pm-8:10 pm

2 stops19h 30m

London Southend

Sun 2/22

5:25 pm-6:40 pm

2 stops30h 15m

$656

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Fri 12/26

6:05 pm-10:00 am

1 stop10h 55m

London Southend

Tue 12/30

7:35 am-4:05 pm

1 stop13h 30m

$2,385

BaltimoreLondon

BWI - SEN

BWISEN

Baltimore/Washington

Sun 3/1

9:59 pm-7:45 pm

3 stops40h 46m

$270

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Thu 1/8

7:40 pm-12:15 pm

3 stops35h 35m

$374

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sun 1/11

10:30 pm-11:00 pm

3 stops19h 30m

$390

BaltimoreLondon

BWI - SEN

BWISEN

Baltimore/Washington

Thu 3/19

8:40 pm-10:35 am

3 stops33h 55m

$390

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Mon 1/12

8:45 pm-10:25 pm

2 stops20h 40m

$391

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Sun 1/18

10:30 pm-11:00 pm

3 stops19h 30m

$395

Washington, D.C.London

IAD - SEN

IADSEN

Washington, D.C. Dulles Intl

Thu 2/5

5:30 pm-9:25 pm

3 stops22h 55m

$398

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

How long does it take to fly to London Southend Airport?

Flight times from Washington, D.C. to London Southend Airport vary, but if you’re flying out of Baltimore and flying into London Heathrow Airport (one of the most popular routes), then the duration is 7h 05m on average. Another popular route from Washington, D.C. to London Southend Airport is flying from Washington, D.C. to London Heathrow Airport, which will take roughly 8h 12m. Keep in mind that layovers or delays could extend your travel time.

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

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

Estimated round-trip price

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

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

Fastest flight time	10h 55m
Direct flights	None

The fastest flight from Washington, D.C. to London Southend Airport takes 10h 55m

There are no direct flights from Washington, D.C. to London Southend Airport. There are no popular flight routes from Washington, D.C. to London Southend Airport.

Search flight deals

How far is Washington, D.C. to London Southend by plane?
The straight-line distance from Washington, D.C. to London Southend is 3694.1 mi. A reasonable flight in good conditions will take 10h 55m.
When did momondo last update prices for flights from Washington, D.C. to London Southend Airport?
Prices for flights from Washington, D.C. to London Southend Airport were last updated today.
How old do you have to be to fly from Washington, D.C. to London Southend Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London Southend Airport.
What documentation or ID do you need to fly to London Southend Airport?
The necessary travel and health documents for your London Southend Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Wembley

Watford

Ilford

Cobham

Folkestone

Romford

Richmond

Uxbridge

Stansted

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Washington, D.C..

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

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

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

Once all potential Washington, D.C. to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to London from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.