$371+ Cheap flights from Southampton (SOU) to Seattle (SEA)
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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Southampton to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 17, 2025.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $799 (KLM) |
One-way from | $371 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $709 |
Find flight deals from Southampton to Seattle
Cheapest flights from Southampton to SeattleExplore 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 April 17, 2025.
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 April 17, 2025.
This KLM deal was found by Cheapflights users on 4/17. 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.
This TravelUp deal was found by Cheapflights users on 4/17. 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.
This Delta deal was found by Cheapflights users on 4/17. 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.
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 April 17, 2025.
Use the filters below to find and compare flights from Southampton to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Thu 5/1
9:20 am-8:50 pm
2 stops19h 30m
Seattle/Tacoma Intl
Mon 5/5
6:07 pm-5:00 pm
1 stop14h 53m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Sun 6/1
6:25 pm-6:35 pm
2 stops56h 10m
Seattle/Tacoma Intl
Sun 6/8
10:15 pm-8:45 am
2 stops50h 30m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Sun 6/1
9:20 am-10:43 pm
2 stops21h 23m
Seattle/Tacoma Intl
Sun 6/8
7:10 am-8:45 am
2 stops17h 35m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Sun 6/1
8:00 pm-10:13 pm
3 stops34h 13m
Seattle/Tacoma Intl
Sun 6/8
7:05 am-8:25 am
3 stops41h 20m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Mon 5/5
8:05 am-8:42 pm
2 stops44h 37m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Sun 9/7
8:00 pm-5:50 pm
1 stop29h 50m
- 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% 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.
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, January is the cheapest month in which you can book a flight from Southampton to Seattle (average of $238). Flying from Southampton to Seattle in July is currently the most expensive (average of $411). 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.
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated April 17, 2025.
Entertainment
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Aaron,Oct 2024
TUS - LAX
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Aaron,Oct 2024
TUS - LAX
Entertainment
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Aaron,Oct 2024
TUS - LAX
Entertainment
Overall
Food
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Boarding
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Aaron,Oct 2024
TUS - LAX
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Aaron,Oct 2024
TUS - LAX