$501+ Cheap flights from Seattle (SEA) to Southampton (SOU)
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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOU
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Southampton 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 Seattle to Southampton
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to SouthamptonExplore the most affordable flight options available from Seattle to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Seattle to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Trip.com deal was found by Cheapflights users on 10/23. 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.
Mon 12/72:35 pm -
2 stops20h 55m
Mon 12/1412:25 pm -
2 stops31h 25m
Deal found 10/23![Multiple Airlines logo]()
$994
This Expedia deal was found by Cheapflights users on 10/23. 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.
Mon 12/72:35 pm -
1 stop18h 30m
Mon 12/145:45 pm -
2 stops30h 59m
Deal found 10/23![KLM logo]()
$1,090
This Delta deal was found by Cheapflights users on 10/23. 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.
Tue 12/12:35 pm -
1 stop33h 35m
Fri 12/118:40 am -
2 stops23h 13m
Deal found 10/23![Delta logo]()
$1,103
This Delta deal was found by Cheapflights users on 10/23. 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.
Mon 11/307:27 am -
2 stops25h 38m
Fri 12/118:40 am -
2 stops23h 13m
Deal found 10/23![Delta logo]()
$1,107
This Delta deal was found by Cheapflights users on 10/23. 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.
Sun 11/299:20 pm -
2 stops35h 45m
Fri 12/118:40 am -
2 stops20h 09m
Deal found 10/23![Delta logo]()
$1,114
This Delta deal was found by Cheapflights users on 10/23. 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.
Thu 12/32:35 pm -
1 stop34h 20m
Fri 12/118:40 am -
2 stops22h 15m
Deal found 10/23![Delta logo]()
$1,153
This Delta deal was found by Cheapflights users on 10/23. 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.
Wed 12/210:55 pm -
2 stops25h 15m
Fri 12/118:40 am -
2 stops22h 15m
Deal found 10/23![Delta logo]()
$1,157
This KLM deal was found by Cheapflights users on 10/21. 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.
Sat 12/52:35 pm -
1 stop18h 15m
Sat 12/129:25 am -
2 stops18h 53m
Deal found 10/21![KLM logo]()
$1,192
Best flights from Seattle to SouthamptonDiscover carefully curated flight deals from Seattle to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Seattle to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Trip.com deal was found by Cheapflights users on 10/23. 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.
Mon 12/72:35 pm -
2 stops20h 55m
Mon 12/1412:25 pm -
2 stops31h 25m
Deal found 10/23![Multiple Airlines logo]()
$994
This KLM deal was found by Cheapflights users on 10/24. 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.
Sun 3/143:35 pm -
1 stop18h 25m
Thu 4/19:20 am -
1 stop15h 00m
Deal found 10/24![KLM logo]()
$1,010
This Delta deal was found by Cheapflights users on 10/23. 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.
Tue 12/12:35 pm -
1 stop33h 35m
Fri 12/118:40 am -
2 stops23h 13m
Deal found 10/23![Delta logo]()
$1,103
This Delta deal was found by Cheapflights users on 10/23. 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.
Mon 11/307:27 am -
2 stops25h 38m
Fri 12/118:40 am -
2 stops23h 13m
Deal found 10/23![Delta logo]()
$1,107
This KLM deal was found by Cheapflights users on 10/24. 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.
Mon 12/76:00 am -
2 stops18h 10m
Mon 12/148:40 am -
2 stops22h 29m
Deal found 10/24![KLM logo]()
$1,148
This Delta deal was found by Cheapflights users on 10/23. 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.
Thu 12/32:35 pm -
1 stop34h 20m
Fri 12/118:40 am -
2 stops22h 15m
Deal found 10/23![Delta logo]()
$1,153
This KLM deal was found by Cheapflights users on 10/21. 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.
Sat 12/52:35 pm -
1 stop18h 15m
Sat 12/129:25 am -
2 stops18h 53m
Deal found 10/21![KLM logo]()
$1,192
This Delta deal was found by Cheapflights users on 10/20. 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.
Sun 12/2011:20 pm -
2 stops24h 50m
Fri 1/15:30 pm -
2 stops47h 24m
Deal found 10/20![Delta logo]()
$1,902
Last-minute flights from Seattle to SouthamptonDiscover last-minute flight deals from Seattle to Southampton. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Southampton. Data last updated October 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/23. 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.
Tue 11/32:35 pm -
1 stop18h 30m
Thu 11/55:35 pm -
1 stop26h 12m
Deal found 10/23![Delta logo]()
$1,502
This Delta deal was found by Cheapflights users on 10/23. 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.
Sun 11/299:20 pm -
2 stops35h 45m
Fri 12/118:40 am -
2 stops20h 09m
Deal found 10/23![Delta logo]()
$1,114
This Delta deal was found by Cheapflights users on 10/23. 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.
Mon 11/307:27 am -
2 stops25h 38m
Fri 12/118:40 am -
2 stops23h 13m
Deal found 10/23![Delta logo]()
$1,107
One-way flights from Seattle to SouthamptonSearch for one-way flight options from Seattle to Southampton. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Seattle to Southampton. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/212:20 pm -
2 stops20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 10/24. 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.
Sat 11/212:35 pm -
1 stop18h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$897
Find flight deals from Seattle to Southampton
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Southampton (SOU). 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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $994 (Trip.com) |
One-way from | $501 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $895 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Seattle to Southampton that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Sat 11/21
2:20 pm-6:40 pm
2 stops20h 20m
Southampton Eastleigh
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$501
Quickest round-trip
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Sat 11/21
2:35 pm-4:50 pm
1 stop18h 15m
Southampton Eastleigh
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$897
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Mon 12/7
2:35 pm-7:30 pm
2 stops20h 55m
Southampton Eastleigh
Mon 12/14
12:25 pm-11:50 am
2 stops31h 25m
$994
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Sun 3/14
3:35 pm-5:00 pm
1 stop18h 25m
Southampton Eastleigh
Thu 4/1
9:20 am-4:20 pm
1 stop15h 00m
$1,010
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Tue 12/1
2:35 pm-8:10 am
1 stop33h 35m
Southampton Eastleigh
Fri 12/11
8:40 am-11:53 pm
2 stops23h 13m
$1,103
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Mon 11/30
7:27 am-5:05 pm
2 stops25h 38m
Southampton Eastleigh
Fri 12/11
8:40 am-11:53 pm
2 stops23h 13m
$1,107
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Mon 12/7
6:00 am-8:10 am
2 stops18h 10m
Southampton Eastleigh
Mon 12/14
8:40 am-11:09 pm
2 stops22h 29m
$1,148
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Thu 12/3
2:35 pm-8:55 am
1 stop34h 20m
Southampton Eastleigh
Fri 12/11
8:40 am-10:55 pm
2 stops22h 15m
$1,153
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Sat 12/5
2:35 pm-4:50 pm
1 stop18h 15m
Southampton Eastleigh
Sat 12/12
9:25 am-8:18 pm
2 stops18h 53m
$1,192
SeattleSouthampton
SEA Seattle/Tacoma Intl - SOU Southampton Eastleigh
SEASOU
Seattle/Tacoma Intl
Sun 12/20
11:20 pm-8:10 am
2 stops24h 50m
Southampton Eastleigh
Fri 1/1
5:30 pm-8:54 am
2 stops47h 24m
$1,902
Sorted by cheapest first
Compare providers for flights from Seattle to Southampton
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Southampton in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Southampton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Southampton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Southampton flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Southampton flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-Southampton 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 Seattle to Southampton
Have a flexible travel schedule? Discover the best time to fly to Southampton from Seattle with our price prediction graph.
SEA-SOU
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.
Related info for your journey
Find useful and relevant information for your journey from Seattle to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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