When did momondo last update prices for flights from Washington to London Southend Airport?

Prices for flights from Washington to London Southend Airport are updated daily.

How old do you have to be to fly from Washington to London Southend Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to London Southend Airport.

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

The travel and health documents you'll need for your trip to London Southend 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 London Southend Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£255 Cheap Flights from State of Washington to London Southend Airport in 2026/27

Find the cheapest flights from Washington to London

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One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:35 - 18:55SEA Seattle/Tacoma Intl-SEN London Southend

20h 20m2 stops Reykjavik Keflavik Intl Berlin Brandenburg

07:20 - 17:00SEN London Southend-SEA Seattle/Tacoma Intl

17h 40m2 stops Berlin Brandenburg Reykjavik Keflavik Intl

£617Multiple Airlines

Thu, 12 Nov - Mon, 16 Nov

14:35 - 14:50SEA Seattle/Tacoma Intl-SEN London Southend

16h 15m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

15:35 - 17:00SEN London Southend-SEA Seattle/Tacoma Intl

33h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£619Multiple Airlines

Sun, 1 Nov - Sun, 8 Nov

07:55 - 22:25SEA Seattle/Tacoma Intl-SEN London Southend

30h 30m3 stops Toronto Pearson Intl Brussels Bruxelles-National Malaga

15:35 - 18:32SEN London Southend-SEA Seattle/Tacoma Intl

34h 57m3 stops Malaga Zurich Vancouver Intl

£691Multiple Airlines

Sun, 4 Oct - Sun, 11 Oct

14:45 - 18:55PDX Portland-SEN London Southend

20h 10m2 stops Reykjavik Keflavik Intl Berlin Brandenburg

07:20 - 17:00SEN London Southend-PDX Portland

17h 40m2 stops Berlin Brandenburg Reykjavik Keflavik Intl

£772Multiple Airlines

Thu, 26 Nov - Mon, 30 Nov

15:40 - 20:35SEA Seattle/Tacoma Intl-SEN London Southend

20h 55m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

07:15 - 17:00SEN London Southend-SEA Seattle/Tacoma Intl

17h 45m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£904Multiple Airlines

Sat, 24 Oct - Sat, 7 Nov

14:45 - 18:55PDX Portland-SEN London Southend

20h 10m2 stops Reykjavik Keflavik Intl Berlin Brandenburg

07:35 - 17:00SEN London Southend-PDX Portland

17h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£912Multiple Airlines

Thu, 3 Dec - Fri, 18 Dec

10:00 - 18:35PDX Portland-SEN London Southend

24h 35m3 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle

07:10 - 17:00SEN London Southend-PDX Portland

17h 50m2 stops Paris Charles de Gaulle Reykjavik Keflavik Intl

£1,080Multiple Airlines

Wed, 9 Dec - Wed, 16 Dec

10:00 - 17:15PDX Portland-SEN London Southend

23h 15m3 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle

15:55 - 19:50SEN London Southend-PDX Portland

35h 55m3 stops Paris Charles de Gaulle Reykjavik Keflavik Intl Seattle/Tacoma Intl

£1,566Multiple Airlines

Thu, 14 Jan - Sun, 24 Jan

13:30 - 10:30SEA Seattle/Tacoma Intl-SEN London Southend

13h 00m1 stop Paris Charles de Gaulle

07:25 - 17:47SEN London Southend-SEA Seattle/Tacoma Intl

18h 22m1 stop Paris Charles de Gaulle

£1,612Multiple Airlines

Sun, 11 Oct - Sun, 18 Oct

14:35 - 22:05SEA Seattle/Tacoma Intl-SEN London Southend

23h 30m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

07:35 - 17:00SEN London Southend-SEA Seattle/Tacoma Intl

17h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£1,971Multiple Airlines

Sat, 19 Dec - Fri, 8 Jan

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA Seattle/Tacoma Intl - SEN London Southend

SEASEN

Seattle/Tacoma Intl

Thu 12/11

14:35-18:55

2 stops20h 20m

London Southend

Mon 16/11

07:20-17:00

2 stops17h 40m

£617

SeattleLondon

SEA Seattle/Tacoma Intl - SEN London Southend

SEASEN

Seattle/Tacoma Intl

Sun 1/11

14:35-14:50

2 stops16h 15m

London Southend

Sun 8/11

15:35-17:00

2 stops33h 25m

£619

SeattleLondon

SEA Seattle/Tacoma Intl - SEN London Southend

SEASEN

Seattle/Tacoma Intl

Sun 4/10

07:55-22:25

3 stops30h 30m

London Southend

Sun 11/10

15:35-18:32

3 stops34h 57m

£691

PortlandLondon

PDX Portland - SEN London Southend

PDXSEN

Portland

Thu 26/11

14:45-18:55

2 stops20h 10m

London Southend

Mon 30/11

07:20-17:00

2 stops17h 40m

£772

SeattleLondon

SEA Seattle/Tacoma Intl - SEN London Southend

SEASEN

Seattle/Tacoma Intl

Sat 24/10

15:40-20:35

2 stops20h 55m

London Southend

Sat 7/11

07:15-17:00

2 stops17h 45m

£904

PortlandLondon

PDX Portland - SEN London Southend

PDXSEN

Portland

Thu 3/12

14:45-18:55

2 stops20h 10m

London Southend

Fri 18/12

07:35-17:00

2 stops17h 25m

£912

PortlandLondon

PDX Portland - SEN London Southend

PDXSEN

Portland

Wed 9/12

10:00-18:35

3 stops24h 35m

London Southend

Wed 16/12

07:10-17:00

2 stops17h 50m

£1,080

PortlandLondon

PDX Portland - SEN London Southend

PDXSEN

Portland

Thu 14/1

10:00-17:15

3 stops23h 15m

London Southend

Sun 24/1

15:55-19:50

3 stops35h 55m

£1,566

Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - SEN London Southend

SEASEN

Seattle/Tacoma Intl

Sun 11/10

13:30-10:30

1 stop13h 00m

London Southend

Sun 18/10

07:25-17:47

1 stop18h 22m

£1,612

SeattleLondon

SEA Seattle/Tacoma Intl - SEN London Southend

SEASEN

Seattle/Tacoma Intl

Sat 19/12

14:35-22:05

2 stops23h 30m

London Southend

Fri 8/1

07:35-17:00

2 stops17h 25m

£1,971

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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 State of Washington to London Southend Airport vary, but if you’re flying out of Seattle and flying into London Heathrow Airport (one of the most popular routes), then the duration is 9h 15m on average. Another popular route from State of Washington to London Southend Airport is flying from Pasco to London Heathrow Airport, which will take roughly 13h 58m. Keep in mind that layovers or delays could extend your travel time.

Cheap State of Washington to London Southend Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to London Southend Airport

Best price found	£255
Fastest flight time	16h 15m
Direct flights	None

The best one-way flight to London Southend Airport from State of Washington in the past 72 hours is £255. The best return flight deal from State of Washington to London Southend Airport found on momondo in the last 72 hours is £617.

The fastest flight from State of Washington to London Southend Airport takes 16h 15m

There are no direct flights from State of Washington to London Southend Airport. There are no popular flight routes from State of Washington to London Southend Airport.

Search flight deals

Frequently asked questions about flying from Washington to London Southend Airport

When did momondo last update prices for flights from Washington to London Southend Airport?
Prices for flights from Washington to London Southend Airport are updated daily.
How old do you have to be to fly from Washington to London Southend Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to London Southend Airport.
What documentation or ID do you need to fly to London Southend Airport?
The travel and health documents you'll need for your trip to London Southend 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 London Southend Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Washington to London?

It is quick and easy to find Washington to London 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 London that suits you.

Can I find flights from Washington to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Washington.

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

Yes momondo offers price alerts on flights to London from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.