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$526+ Cheap flights from Washington to Southampton (SOU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOU
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find flight deals from Washington to Southampton

Cheapest flights from Washington to Southampton
Explore the most affordable flight options available from Washington to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/119:00 amSEA - SOU
2 stops18h 55mAer Lingus
vie. 11/289:30 amSOU - SEA
1 stop16h 50mAer Lingus
Deal found 10/30$891
This KLM deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/113:00 pmSEA - SOU
1 stop18h 00mKLM
vie. 11/288:40 amSOU - SEA
2 stops21h 43mKLM
Deal found 10/29$955
This Expedia deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/1212:38 amSEA - SOU
2 stops24h 07mMultiple Airlines
sáb. 12/209:30 amSOU - SEA
2 stops31h 32mMultiple Airlines
Deal found 10/28$1,171
This KLM deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/136:00 amGEG - SOU
2 stops27h 25mKLM
sáb. 12/205:30 pmSOU - GEG
2 stops30h 43mKLM
Deal found 10/28$1,445
This Virgin Atlantic deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/139:59 pmSEA - SOU
2 stops26h 11mVirgin Atlantic
sáb. 12/205:30 pmSOU - SEA
1 stop26h 20mVirgin Atlantic
Deal found 10/28$1,561
This Air France deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/133:05 pmSEA - SOU
1 stop33h 05mKLM
sáb. 12/205:30 pmSOU - SEA
1 stop26h 20mKLM
Deal found 10/28$1,620
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/173:05 pmSEA - SOU
1 stop33h 00mDelta
mié. 12/318:40 amSOU - SEA
1 stop35h 10mDelta
Deal found 10/29$1,780

Cheap flight deals from Washington to Southampton

Keep the following information in mind while searching for Washington to Southampton flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$814
(Delta)

One-way from

$526
(Delta)

Popular in

June

Cheapest in

October

Average price

$663
Provider with most accurate pricing for Seattle/Tacoma Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London (LON) flights.
Search Deals
From Washington to Southampton Eastleigh
Search Deals
One-way flight from Washington to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Washington to Southampton that are best for you.

Fly from

Washington

Fly to

Southampton

Route

Depart

Return

Price

SpokaneSouthampton

GEG - SOU

GEGSOU

Spokane

jue. 2/26

6:30 am-8:50 am

2 stops42h 20m

Southampton Eastleigh

lun. 3/2

5:30 pm-9:30 pm

2 stops36h 00m

$814

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mar. 11/11

9:00 am-11:55 am

2 stops18h 55m

Southampton Eastleigh

vie. 11/28

9:30 am-6:20 pm

1 stop16h 50m

$891

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mar. 11/11

3:00 pm-5:00 pm

1 stop18h 00m

Southampton Eastleigh

vie. 11/28

8:40 am-10:23 pm

2 stops21h 43m

$955

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

vie. 12/12

12:38 am-8:45 am

2 stops24h 07m

Southampton Eastleigh

sáb. 12/20

9:30 am-9:02 am

2 stops31h 32m

$1,171

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

sáb. 12/13

9:59 pm-8:10 am

2 stops26h 11m

Southampton Eastleigh

sáb. 12/20

5:30 pm-11:50 am

1 stop26h 20m

$1,561

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

sáb. 3/28

11:05 pm-5:00 pm

2 stops33h 55m

$531

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

dom. 3/29

11:25 am-5:00 pm

2 stops21h 35m

$531

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

vie. 3/27

7:35 pm-4:00 pm

2 stops37h 25m

$636

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 12/17

3:05 pm-8:05 am

1 stop33h 00m

$830

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

jue. 12/18

3:05 pm-5:00 pm

1 stop17h 55m

$1,056

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Washington to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Southampton

What is the cheapest month to book a flight from State of Washington to Southampton?

Currently, April is the cheapest month in which you can book a flight from State of Washington to Southampton (average of $485). Flying from State of Washington to Southampton in June is currently the most expensive (average of $792). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to SOU?

Find hourly flight availability from Washington to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from State of Washington to Southampton by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from Washington to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Southampton from Washington?

    If you book a flight to Southampton from Washington, you will be flying to Eastleigh, which is the city’s only airport. Southampton Eastleigh (SOU) is located 3.5 mi from the center of Southampton.

  • How long is the flight from State of Washington to Southampton?

    Departing from State of Washington to Southampton will take you 18h. The distance from State of Washington to Southampton is about 4787 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Washington to Southampton that include hotel bookings?

    Yes. In addition to deals on Washington to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Southampton.

  • Can I find deals for business class flights from Washington to Southampton?

    Yes. Cheapflights offers flight deals from Washington to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Southampton?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Southampton (average of $485). Flying from State of Washington to Southampton in June is currently the most expensive (average of $792). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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See prices for flight routes from nearby airports that may be better suited for you.
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