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$667+ Cheap flights from Southampton (SOU) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — SEA
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Find flight deals from Southampton to Seattle

Cheapest flights from Southampton to Seattle
Explore the most affordable flight options available from Southampton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This TravelUp deal was found by Cheapflights users on 10/25. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/108:40 amSOU - SEA
1 stop35h 10mVirgin Atlantic
mié. 12/176:00 amSEA - SOU
2 stops27h 25mVirgin Atlantic
Deal found 10/25$756
This Trip.com deal was found by Cheapflights users on 10/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/105:30 pmSOU - SEA
1 stop26h 20mMultiple Airlines
mié. 12/173:05 pmSEA - SOU
1 stop33h 00mMultiple Airlines
Deal found 10/25$834
This oojo deal was found by Cheapflights users on 10/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/102:25 pmSOU - SEA
3 stops34h 30mBritish Airways
mié. 12/178:05 pmSEA - SOU
2 stops28h 05mBritish Airways
Deal found 10/25$1,058

Cheap flight deals from Southampton to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 28, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$667
(Virgin Atlantic)

Popular in

July

Cheapest in

January

Average price

$726
Provider with most accurate pricing for Southampton Eastleigh-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Southampton Eastleigh-Seattle/Tacoma Intl flights.
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From Southampton Eastleigh to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Southampton to Seattle 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 28, 2025.
Use the filters below to find and compare flights from Southampton to Seattle that are best for you.

Fly from

Southampton

Fly to

Seattle

Route

Depart

Return

Price

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

mié. 3/4

8:40 am-11:35 am

1 stop34h 55m

Seattle/Tacoma Intl

dom. 3/8

4:00 pm-8:10 am

1 stop33h 10m

$667

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

mié. 3/4

8:40 am-11:35 am

1 stop34h 55m

Seattle/Tacoma Intl

dom. 3/8

12:10 pm-8:10 am

2 stops37h 00m

$667

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

mié. 12/10

8:40 am-11:50 am

1 stop35h 10m

Seattle/Tacoma Intl

mié. 12/17

6:00 am-5:25 pm

2 stops27h 25m

$756

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

mié. 12/10

5:30 pm-11:50 am

1 stop26h 20m

Seattle/Tacoma Intl

mié. 12/17

3:05 pm-8:05 am

1 stop33h 00m

$834

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

mié. 11/26

12:25 pm-6:20 pm

1 stop13h 55m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

  • Most accurate provider: When it comes to deals on Southampton-Seattle flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Southampton-Seattle flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Southampton-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Southampton-Seattle flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Southampton-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Southampton to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Southampton 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 Southampton to Seattle

What is the cheapest month to book a flight from Southampton to Seattle?

Currently, March is the cheapest month in which you can book a flight from Southampton to Seattle (average of $410). Flying from Southampton to Seattle in August is currently the most expensive (average of $617). 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.

Related info for your journey

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

  • How long is the flight from Southampton to Seattle?

    Virgin Atlantic and Delta can get you from Southampton to Seattle in just under 34h 55m. Your travel time can differ by up to . The distance between Southampton and Seattle is about 4787 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Southampton to Seattle 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 Southampton to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Southampton to Seattle (average of $410). Flying from Southampton to Seattle in August is currently the most expensive (average of $617). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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