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Cheap flights from Washington to London from $352

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 8/12. 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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Find the cheapest flights from Washington to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
1:45 pm - 9:30 am
SEA
-
LCY
11h 45m
1 stop
KLM Logo
5:50 pm - 7:05 pm
LCY
-
SEA
32h 15m
2 stops
$913KLM
Mon, Oct 19 - Wed, Oct 28
Delta Logo
5:40 pm - 4:40 pm
SEA
-
LCY
15h 00m
1 stop
Delta Logo
9:20 am - 4:35 pm
LCY
-
SEA
15h 15m
1 stop
$932Delta
Mon, Sep 14 - Fri, Sep 18
Delta Logo
1:50 pm - 9:30 am
SEA
-
LCY
11h 40m
1 stop
Delta Logo
10:00 am - 4:35 pm
LCY
-
SEA
14h 35m
1 stop
$933Delta
Mon, Sep 14 - Tue, Sep 22
Virgin Atlantic Logo
1:50 pm - 5:20 pm
SEA
-
LCY
19h 30m
1 stop
Virgin Atlantic Logo
9:20 am - 6:54 pm
LCY
-
SEA
17h 34m
2 stops
$934Virgin Atlantic
Tue, Aug 11 - Wed, Aug 19
Lufthansa Logo
1:37 pm - 5:55 pm
GEG
-
LCY
20h 18m
2 stops
Lufthansa Logo
9:15 am - 8:53 pm
LCY
-
GEG
19h 38m
2 stops
$935Lufthansa
Sun, Sep 27 - Tue, Oct 13
Virgin Atlantic Logo
5:20 am - 8:50 am
SEA
-
LCY
19h 30m
2 stops
Virgin Atlantic Logo
8:15 pm - 11:47 am
LCY
-
SEA
23h 32m
1 stop
$936Virgin Atlantic
Sun, Jul 26 - Tue, Sep 22
Virgin Atlantic Logo
5:10 am - 7:15 am
SEA
-
LCY
18h 05m
2 stops
Virgin Atlantic Logo
5:50 pm - 11:37 am
LCY
-
SEA
25h 47m
1 stop
$937Virgin Atlantic
Mon, Aug 17 - Tue, Aug 25
SWISS Logo
1:19 pm - 5:25 pm
SEA
-
LCY
20h 06m
2 stops
SWISS Logo
7:15 pm - 6:32 pm
LCY
-
SEA
31h 17m
2 stops
$938SWISS
Tue, Sep 15 - Tue, Oct 20
SWISS Logo
3:33 pm - 5:25 pm
SEA
-
LCY
17h 52m
2 stops
SWISS Logo
9:15 am - 6:32 pm
LCY
-
SEA
17h 17m
2 stops
$939SWISS
Tue, Sep 15 - Wed, Sep 30
Lufthansa Logo
1:37 pm - 5:55 pm
GEG
-
LCY
20h 18m
2 stops
Lufthansa Logo
9:15 am - 8:53 pm
LCY
-
GEG
19h 38m
2 stops
$955Lufthansa
Tue, Oct 6 - Tue, Oct 20

SWISS flights from State of Washington to London City Airport

Our best SWISS deals on State of Washington to London City Airport flight tickets
SWISS
Sep 15
SEA3:33 pmSeattle/Tacoma Intl
17h 52m
2 stops
LCY5:25 pmLondon City
Oct 21
LCY9:15 amLondon City
17h 17m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$938
SWISS
Sep 15
SEA3:33 pmSeattle/Tacoma Intl
17h 52m
2 stops
LCY5:25 pmLondon City
Sep 30
LCY9:15 amLondon City
17h 17m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$939
SWISS
Aug 25
SEA10:45 amSeattle/Tacoma Intl
22h 40m
2 stops
LCY5:25 pmLondon City
Sep 14
LCY9:15 amLondon City
17h 17m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$952

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
Aug 11
SEA1:50 pmSeattle/Tacoma Intl
19h 30m
1 stop
LCY5:20 pmLondon City
Aug 19
LCY9:20 amLondon City
17h 34m
2 stops
SEA6:54 pmSeattle/Tacoma Intl
$934
Virgin Atlantic
Jul 26
SEA5:20 amSeattle/Tacoma Intl
19h 30m
2 stops
LCY8:50 amLondon City
Sep 22
LCY8:15 pmLondon City
23h 32m
1 stop
SEA11:47 amSeattle/Tacoma Intl
$936
Virgin Atlantic
Aug 17
SEA5:10 amSeattle/Tacoma Intl
18h 05m
2 stops
LCY7:15 amLondon City
Aug 25
LCY5:50 pmLondon City
25h 47m
1 stop
SEA11:37 amSeattle/Tacoma Intl
$937

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 May 11, 2026.
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

Cheapest round-trip

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 10/19

1:45 pm-9:30 am

1 stop11h 45m

London City

Wed 10/28

5:50 pm-7:05 pm

2 stops32h 15m

$913

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 9/14

5:40 pm-4:40 pm

1 stop15h 00m

London City

Fri 9/18

9:20 am-4:35 pm

1 stop15h 15m

$932
Quickest round-trip

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 9/14

1:50 pm-9:30 am

1 stop11h 40m

London City

Tue 9/22

10:00 am-4:35 pm

1 stop14h 35m

$933

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 8/11

1:50 pm-5:20 pm

1 stop19h 30m

London City

Wed 8/19

9:20 am-6:54 pm

2 stops17h 34m

$934

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sun 9/27

1:37 pm-5:55 pm

2 stops20h 18m

London City

Tue 10/13

9:15 am-8:53 pm

2 stops19h 38m

$935

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 7/26

5:20 am-8:50 am

2 stops19h 30m

London City

Tue 9/22

8:15 pm-11:47 am

1 stop23h 32m

$936

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 8/17

5:10 am-7:15 am

2 stops18h 05m

London City

Tue 8/25

5:50 pm-11:37 am

1 stop25h 47m

$937

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 9/15

1:19 pm-5:25 pm

2 stops20h 06m

London City

Tue 10/20

7:15 pm-6:32 pm

2 stops31h 17m

$938

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 9/15

3:33 pm-5:25 pm

2 stops17h 52m

London City

Wed 9/30

9:15 am-6:32 pm

2 stops17h 17m

$939

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Tue 10/6

1:37 pm-5:55 pm

2 stops20h 18m

London City

Tue 10/20

9:15 am-8:53 pm

2 stops19h 38m

$955

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?

Delta and KLM 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

Fastest flight time

11h 40m

Direct flights

None
The fastest flight from State of Washington to London City Airport takes 11h 40m
There are no direct flights from State of Washington to London City Airport. There are no popular flight routes from State of Washington to London City Airport.
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Frequently asked questions about flying from Washington to London City Airport

  • 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 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Crawley
Wembley
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Cobham
Folkestone
Romford
Uxbridge
Guildford

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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