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Cheap flights from Washington to London from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to London departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington to London

Cheap round-trip flights

Logo
4:25 pm - 8:50 amSEA-LCY
32h 25m1 stop
Logo
9:25 am - 6:36 pmLCY-SEA
17h 11m2 stops
$512
Find Deal
Mon, Sep 1 - Wed, Sep 17
KLM Logo
5:40 pm - 5:20 pmSEA-LCY
15h 40m1 stop
KLM Logo
7:45 am - 4:05 pmLCY-SEA
16h 20m1 stop
$535KLM
Find Deal
Sun, Aug 17 - Tue, Sep 2
SWISS Logo
4:25 pm - 8:50 amSEA-LCY
32h 25m1 stop
SWISS Logo
9:25 am - 6:36 pmLCY-SEA
17h 11m2 stops
$540SWISS
Find Deal
Mon, Sep 1 - Tue, Sep 9
SWISS Logo
1:05 pm - 8:50 amSEA-LCY
35h 45m2 stops
SWISS Logo
9:25 am - 6:36 pmLCY-SEA
17h 11m2 stops
$544SWISS
Find Deal
Wed, Sep 10 - Thu, Sep 25
SWISS Logo
4:25 pm - 8:50 amSEA-LCY
32h 25m1 stop
SWISS Logo
6:05 pm - 6:49 pmLCY-SEA
32h 44m2 stops
$550SWISS
Find Deal
Mon, Aug 18 - Mon, Aug 25
Virgin Atlantic Logo
5:40 pm - 7:40 pmSEA-LCY
18h 00m1 stop
Virgin Atlantic Logo
7:00 pm - 11:45 amLCY-SEA
24h 45m1 stop
$562Virgin Atlantic
Find Deal
Sun, Sep 7 - Tue, Sep 23
Delta Logo
5:40 pm - 4:40 pmSEA-LCY
15h 00m1 stop
Delta Logo
10:00 am - 4:05 pmLCY-SEA
14h 05m1 stop
$563Delta
Find Deal
Sun, Sep 21 - Wed, Oct 1
Virgin Atlantic Logo
6:05 am - 8:10 amSEA-LCY
18h 05m2 stops
Virgin Atlantic Logo
8:05 pm - 11:50 amLCY-SEA
23h 45m1 stop
$568Virgin Atlantic
Find Deal
Tue, Feb 3 - Tue, Feb 17
Virgin Atlantic Logo
5:40 pm - 7:40 pmSEA-LCY
18h 00m1 stop
Virgin Atlantic Logo
8:40 am - 8:15 pmLCY-SEA
19h 35m2 stops
$572Virgin Atlantic
Find Deal
Sun, Sep 7 - Tue, Sep 23
Delta Logo
3:00 pm - 7:15 amSEA-LCY
32h 15m1 stop
Delta Logo
10:00 am - 11:50 amLCY-SEA
33h 50m1 stop
$612Delta
Find Deal
Tue, Nov 18 - Thu, Nov 27

Virgin Atlantic flights from State of Washington to London City Airport

Our best Virgin Atlantic deals on State of Washington to London City Airport flight tickets
Virgin Atlantic
Sep 7
SEA5:40 pmSeattle/Tacoma Intl
18h 00m
1 stop
LCY7:40 pmLondon City
Sep 23
LCY7:00 pmLondon City
24h 45m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$562
Find similar
Virgin Atlantic
Feb 3
SEA6:05 amSeattle/Tacoma Intl
18h 05m
2 stops
LCY8:10 amLondon City
Feb 17
LCY8:05 pmLondon City
23h 45m
1 stop
SEA11:50 amSeattle/Tacoma Intl
$568
Find similar
Virgin Atlantic
Sep 7
SEA5:40 pmSeattle/Tacoma Intl
18h 00m
1 stop
LCY7:40 pmLondon City
Sep 23
LCY8:40 amLondon City
19h 35m
2 stops
SEA8:15 pmSeattle/Tacoma Intl
$572
Find similar

Lufthansa flights from State of Washington to London City Airport

Our best Lufthansa deals on State of Washington to London City Airport flight tickets
Lufthansa
Dec 2
SEA2:00 pmSeattle/Tacoma Intl
18h 30m
1 stop
LCY4:30 pmLondon City
Dec 11
LCY6:15 pmLondon City
25h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$608
Find similar
Lufthansa
Aug 13
SEA2:20 pmSeattle/Tacoma Intl
20h 15m
1 stop
LCY6:35 pmLondon City
Aug 19
LCY8:45 amLondon City
35h 10m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$610
Find similar
Lufthansa
Oct 20
SEA2:20 pmSeattle/Tacoma Intl
18h 05m
1 stop
LCY4:25 pmLondon City
Oct 29
LCY6:10 pmLondon City
26h 00m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
$619
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to London City Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Washington to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-8:50 am

1 stop32h 25m

London City

Wed 9/17

9:25 am-6:36 pm

2 stops17h 11m

$512

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 8/17

5:40 pm-5:20 pm

1 stop15h 40m

London City

Tue 9/2

7:45 am-4:05 pm

1 stop16h 20m

$535

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-8:50 am

1 stop32h 25m

London City

Tue 9/9

9:25 am-6:36 pm

2 stops17h 11m

$540

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 9/10

1:05 pm-8:50 am

2 stops35h 45m

London City

Thu 9/25

9:25 am-6:36 pm

2 stops17h 11m

$544

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 8/18

4:25 pm-8:50 am

1 stop32h 25m

London City

Mon 8/25

6:05 pm-6:49 pm

2 stops32h 44m

$550

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 9/7

5:40 pm-7:40 pm

1 stop18h 00m

London City

Tue 9/23

7:00 pm-11:45 am

1 stop24h 45m

$562

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 9/21

5:40 pm-4:40 pm

1 stop15h 00m

London City

Wed 10/1

10:00 am-4:05 pm

1 stop14h 05m

$563

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 2/3

6:05 am-8:10 am

2 stops18h 05m

London City

Tue 2/17

8:05 pm-11:50 am

1 stop23h 45m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 9/7

5:40 pm-7:40 pm

1 stop18h 00m

London City

Tue 9/23

8:40 am-8:15 pm

2 stops19h 35m

$572

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 11/18

3:00 pm-7:15 am

1 stop32h 15m

London City

Thu 11/27

10:00 am-11:50 am

1 stop33h 50m

$612

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from State of Washington to London City 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

What is the cheapest airline that flies from Washington to London City?

SWISS, KLM, and Delta are the most popular carriers operating from Washington to London City

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

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

Best Price Found

$324

Fastest flight time

11h 35m

Direct flights

None
The best one-way flight to London City Airport from State of Washington in the past 72 hours is $324. The best round-trip flight deal from State of Washington to London City Airport found on momondo in the last 72 hours is $512.
The fastest flight from State of Washington to London City Airport takes 11h 35m
There are no direct flights from State of Washington to London City Airport. Popular non-direct routes for this connection are Portland Airport - London City Airport and Seattle/Tacoma Intl Airport - London City Airport.
Search flight deals

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

    Prices for flights from Washington to London City Airport were last updated today.

  • How many operators does momondo search for flights from Washington to London City Airport?

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

    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 Washington to London City Airport.

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

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

Best airlines flying from State of Washington to London City Airport

Compare and see reviews for airlines that fly from State of Washington to London City Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $962Free CancellationRating
7.4
1,465 reviews
Search Scandinavian Airlines flights

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to London. momondo saves you time and could save you money on your trip.

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

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

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.

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