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

Confirm your travel details to search for the latest offers for flights from London Southend Airport to State of Washington . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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.

$564 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 pm - 5:10 pm

SEN

SEA

31h 55m

2 stops

5:45 am - 3:10 pm

SEA

SEN

25h 25m

3 stops

$1,302Multiple Airlines

Thu, Aug 13 - Sat, Aug 29

12:15 pm - 8:40 pm

SEN

SEA

16h 25m

2 stops

3:40 pm - 4:40 pm

SEA

SEN

17h 00m

2 stops

$1,337Multiple Airlines

Wed, Jun 24 - Wed, Jul 1

8:10 am - 5:30 pm

SEN

SEA

17h 20m

1 stop

1:30 pm - 10:45 am

SEA

SEN

13h 15m

1 stop

$1,419Multiple Airlines

Fri, Jun 12 - Fri, Jun 19

8:10 am - 9:40 am

SEN

SEA

33h 30m

2 stops

5:45 pm - 7:35 pm

SEA

SEN

17h 50m

1 stop

$1,507Multiple Airlines

Fri, Jun 5 - Thu, Jun 11

7:50 pm - 11:37 am

SEN

SEA

23h 47m

2 stops

1:30 pm - 10:30 am

SEA

SEN

13h 00m

1 stop

$1,546Multiple Airlines

Sun, Aug 2 - Sun, Aug 16

11:10 am - 8:40 pm

SEN

SEA

17h 30m

2 stops

1:30 pm - 4:40 pm

SEA

SEN

19h 10m

1 stop

$1,588Multiple Airlines

Mon, Jun 8 - Wed, Jun 24

11:10 am - 8:40 pm

SEN

SEA

17h 30m

2 stops

1:30 pm - 4:40 pm

SEA

SEN

19h 10m

1 stop

$1,632Multiple Airlines

Mon, Jun 8 - Wed, Jun 24

7:55 am - 9:40 am

SEN

SEA

33h 45m

2 stops

1:30 pm - 10:25 am

SEA

SEN

12h 55m

1 stop

$1,646Multiple Airlines

Sat, Jun 6 - Sat, Jun 13

4:50 pm - 9:40 am

SEN

SEA

48h 50m

2 stops

1:30 pm - 10:25 am

SEA

SEN

12h 55m

1 stop

$1,690Multiple Airlines

Sat, Jun 6 - Sat, Jun 13

10:10 am - 6:45 pm

SEN

SEA

16h 35m

2 stops

1:30 pm - 10:45 am

SEA

SEN

13h 15m

1 stop

$1,842Multiple Airlines

Thu, Jun 11 - Fri, Jun 12

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 round-trip

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 8/13

5:15 pm-5:10 pm

2 stops31h 55m

Seattle/Tacoma Intl

Sat 8/29

5:45 am-3:10 pm

3 stops25h 25m

$1,302

LondonSeattle

SEN - SEA

SENSEA

London Southend

Wed 6/24

12:15 pm-8:40 pm

2 stops16h 25m

Seattle/Tacoma Intl

Wed 7/1

3:40 pm-4:40 pm

2 stops17h 00m

$1,337

LondonSeattle

SEN - SEA

SENSEA

London Southend

Fri 6/12

8:10 am-5:30 pm

1 stop17h 20m

Seattle/Tacoma Intl

Fri 6/19

1:30 pm-10:45 am

1 stop13h 15m

$1,419

LondonSeattle

SEN - SEA

SENSEA

London Southend

Fri 6/5

8:10 am-9:40 am

2 stops33h 30m

Seattle/Tacoma Intl

Thu 6/11

5:45 pm-7:35 pm

1 stop17h 50m

$1,507

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sun 8/2

7:50 pm-11:37 am

2 stops23h 47m

Seattle/Tacoma Intl

Sun 8/16

1:30 pm-10:30 am

1 stop13h 00m

$1,546

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 6/8

11:10 am-8:40 pm

2 stops17h 30m

Seattle/Tacoma Intl

Wed 6/24

1:30 pm-4:40 pm

1 stop19h 10m

$1,588

LondonSeattle

SEN - SEA

SENSEA

London Southend

Mon 6/8

11:10 am-8:40 pm

2 stops17h 30m

Seattle/Tacoma Intl

Wed 6/24

1:30 pm-4:40 pm

1 stop19h 10m

$1,632

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sat 6/6

7:55 am-9:40 am

2 stops33h 45m

Seattle/Tacoma Intl

Sat 6/13

1:30 pm-10:25 am

1 stop12h 55m

$1,646

LondonSeattle

SEN - SEA

SENSEA

London Southend

Sat 6/6

4:50 pm-9:40 am

2 stops48h 50m

Seattle/Tacoma Intl

Sat 6/13

1:30 pm-10:25 am

1 stop12h 55m

$1,690

Quickest round-trip

LondonSeattle

SEN - SEA

SENSEA

London Southend

Thu 6/11

10:10 am-6:45 pm

2 stops16h 35m

Seattle/Tacoma Intl

Fri 6/12

1:30 pm-10:45 am

1 stop13h 15m

$1,842

Flights are sorted by cheapest round-trip 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 20m
Direct flights	None

The fastest flight from London Southend Airport to State of Washington takes 17h 20m

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.

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Frequently asked questions about flying from London Southend Airport to Washington

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

Frequently asked questions about flying from London Southend Airport to Washington

How do I get Price Alerts for flights from London Southend Airport to State of Washington?
Confirm your travel details to search for the latest offers for flights from London Southend Airport to State of Washington. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
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 show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Washington. Millions of users trust and use momondo every year so you are in good hands.

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 offers price alerts on flights to Washington from London. 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.