How do I get Price Alerts for flights from London Southend Airport to State of Washington?

You can take advantage of momondo’s Price Alerts by first searching for your flights to London Southend Airport from State of Washington . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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

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

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

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.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington 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.

£333 Cheap Flights from London Southend Airport to State of Washington in 2026

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0 bags

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Find the cheapest flights from London Southend Airport to Washington

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:10 - 22:53

SEN

SEA

20h 43m

3 stops

15:40 - 21:25

SEA

SEN

21h 45m

2 stops

£604Multiple Airlines

Thu, 9 Apr - Wed, 22 Apr

10:10 - 22:53

SEN

SEA

20h 43m

3 stops

15:40 - 21:25

SEA

SEN

21h 45m

2 stops

£724Multiple Airlines

Thu, 9 Apr - Wed, 22 Apr

07:25 - 22:53

SEN

SEA

23h 28m

3 stops

15:40 - 20:10

SEA

SEN

20h 30m

3 stops

£854Multiple Airlines

Sun, 19 Apr - Thu, 23 Apr

07:25 - 22:53

SEN

SEA

23h 28m

3 stops

15:40 - 20:10

SEA

SEN

20h 30m

3 stops

£884Multiple Airlines

Sun, 19 Apr - Thu, 23 Apr

07:15 - 17:15

SEN

SEA

42h 00m

3 stops

15:40 - 21:25

SEA

SEN

21h 45m

3 stops

£958Multiple Airlines

Wed, 8 Apr - Wed, 15 Apr

11:10 - 18:45

SEN

SEA

39h 35m

2 stops

17:40 - 19:35

SEA

SEN

17h 55m

1 stop

£1,300Multiple Airlines

Mon, 4 May - Sun, 10 May

06:30 - 10:38

SEN

SEA

36h 08m

2 stops

17:40 - 19:40

SEA

SEN

18h 00m

1 stop

£1,338Multiple Airlines

Tue, 12 May - Tue, 19 May

14:15 - 17:15

SEN

SEA

35h 00m

2 stops

13:45 - 16:40

SEA

SEN

18h 55m

1 stop

£1,584Multiple Airlines

Wed, 8 Apr - Wed, 15 Apr

11:20 - 11:15

SEN

SEA

31h 55m

1 stop

10:30 - 21:45

SEA

SEN

27h 15m

2 stops

£2,070Multiple Airlines

Fri, 8 May - Fri, 15 May

11:10 - 11:15

SEN

SEA

32h 05m

1 stop

17:40 - 19:35

SEA

SEN

17h 55m

1 stop

£2,415Multiple Airlines

Mon, 4 May - Sun, 10 May

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 9/4

10:10-22:53

3 stops20h 43m

Seattle/Tacoma Intl

Wed 22/4

15:40-21:25

2 stops21h 45m

£604

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 9/4

10:10-22:53

3 stops20h 43m

Seattle/Tacoma Intl

Wed 22/4

15:40-21:25

2 stops21h 45m

£724

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 19/4

07:25-22:53

3 stops23h 28m

Seattle/Tacoma Intl

Thu 23/4

15:40-20:10

3 stops20h 30m

£854

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 19/4

07:25-22:53

3 stops23h 28m

Seattle/Tacoma Intl

Thu 23/4

15:40-20:10

3 stops20h 30m

£884

LondonSeattle

SEN - SEA

SENSEA

London Southend

Wed 8/4

07:15-17:15

3 stops42h 00m

Seattle/Tacoma Intl

Wed 15/4

15:40-21:25

3 stops21h 45m

£958

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 4/5

11:10-18:45

2 stops39h 35m

Seattle/Tacoma Intl

Sun 10/5

17:40-19:35

1 stop17h 55m

£1,300

LondonSeattle

SEN - SEA

SENSEA

London Southend

Tue 12/5

06:30-10:38

2 stops36h 08m

Seattle/Tacoma Intl

Tue 19/5

17:40-19:40

1 stop18h 00m

£1,338

LondonSeattle

SEN - SEA

SENSEA

London Southend

Wed 8/4

14:15-17:15

2 stops35h 00m

Seattle/Tacoma Intl

Wed 15/4

13:45-16:40

1 stop18h 55m

£1,584

LondonSeattle

SEN - SEA

SENSEA

London Southend

Fri 8/5

11:20-11:15

1 stop31h 55m

Seattle/Tacoma Intl

Fri 15/5

10:30-21:45

2 stops27h 15m

£2,070

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 4/5

11:10-11:15

1 stop32h 05m

Seattle/Tacoma Intl

Sun 10/5

17:40-19:35

1 stop17h 55m

£2,415

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Fastest flight time	17h 25m
Direct flights	None

The fastest flight from London Southend Airport to State of Washington takes 17h 25m

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

Search flight deals

When did momondo last update prices for flights from London Southend Airport to Washington?
Prices for flights from London Southend Airport to Washington are updated daily.
How old do you have to be to fly from London Southend Airport to Washington?
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.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington 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.

How do I get Price Alerts for flights from London Southend Airport to State of Washington?
You can take advantage of momondo’s Price Alerts by first searching for your flights to London Southend Airport from State of Washington. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from London Southend Airport to State of Washington with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

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 Washington from London.

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

Yes. momondo enables you to select and highlight flights to Washington from London with this policy.

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

Once all potential London to Washington 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 London to Washington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.