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Cheap flights from Washington to London from £229

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 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
17:30 - 08:35
SEA
-
SOU
31h 05m1 stop
KLM Logo
17:20 - 11:42
SOU
-
SEA
26h 22m1 stop
£565KLM
Wed, 29 Apr - Wed, 13 May
Virgin Atlantic Logo
07:15 - 16:50
SEA
-
SOU
25h 35m2 stops
Virgin Atlantic Logo
17:20 - 11:42
SOU
-
SEA
26h 22m1 stop
£568Virgin Atlantic
Wed, 29 Apr - Wed, 13 May
Virgin Atlantic Logo
07:15 - 16:50
SEA
-
SOU
25h 35m2 stops
Virgin Atlantic Logo
09:05 - 22:05
SOU
-
SEA
21h 00m2 stops
£576Virgin Atlantic
Wed, 29 Apr - Wed, 13 May
British Airways Logo
18:50 - 09:45
SEA
-
SOU
30h 55m2 stops
British Airways Logo
08:40 - 16:55
SOU
-
SEA
40h 15m2 stops
£4,348British Airways
Thu, 5 Feb - Mon, 9 Feb

Virgin Atlantic flights from State of Washington to Southampton

Our best Virgin Atlantic deals on State of Washington to Southampton flight tickets
Virgin Atlantic
29 Apr
SEA07:15Seattle/Tacoma Intl
25h 35m
2 stops
SOU16:50Southampton Eastleigh
13 May
SOU17:20Southampton Eastleigh
26h 22m
1 stop
SEA11:42Seattle/Tacoma Intl
£568
Find similar
Virgin Atlantic
29 Apr
SEA07:15Seattle/Tacoma Intl
25h 35m
2 stops
SOU16:50Southampton Eastleigh
13 May
SOU09:05Southampton Eastleigh
21h 00m
2 stops
SEA22:05Seattle/Tacoma Intl
£576
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to Southampton 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 279,928 searches. Data last updated 26 December 2025.
Use the filters below to find and compare flights from Washington to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Wed 29/4

17:30-08:35

1 stop31h 05m

Southampton Eastleigh

Wed 13/5

17:20-11:42

1 stop26h 22m

£565

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Wed 29/4

07:15-16:50

2 stops25h 35m

Southampton Eastleigh

Wed 13/5

17:20-11:42

1 stop26h 22m

£568

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Wed 29/4

07:15-16:50

2 stops25h 35m

Southampton Eastleigh

Wed 13/5

09:05-22:05

2 stops21h 00m

£576

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Thu 5/2

18:50-09:45

2 stops30h 55m

Southampton Eastleigh

Mon 9/2

08:40-16:55

2 stops40h 15m

£4,348

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 5/5

13:45-16:50

1 stop19h 05m

£229

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 5/5

22:35-16:50

2 stops34h 15m

£232

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Thu 7/5

17:30-08:45

1 stop31h 15m

£266

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Thu 7/5

09:50-16:50

2 stops23h 00m

£269

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 21/6

18:45-08:40

1 stop29h 55m

£408

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from State of Washington to Southampton

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 Southampton Eastleigh?

Delta is the most popular carrier operating from Washington to Southampton Eastleigh

Cheap State of Washington to Southampton flight deals and tips

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

Fastest flight time

15h 50m

Direct flights

None
The fastest flight from State of Washington to Southampton takes 15h 50m
There are no direct flights from State of Washington to Southampton. There are no popular flight routes from State of Washington to Southampton.
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  • When did momondo last update prices for flights from Washington to Southampton Eastleigh Airport?

    Prices for flights from Washington to Southampton Eastleigh Airport were last updated today.

  • How old do you have to be to fly from Washington to Southampton Eastleigh 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 Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

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

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 Southampton from Washington.

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

All flight searches from Washington to Southampton on momondo can be filtered to show those which offer flexible booking policies.

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

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 Southampton from Washington.

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

Yes momondo offers price alerts on flights to Southampton 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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