$314+ Cheap flights from Seattle (SEA) 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOU
Aug 25 — Sep 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 July 26, 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 July 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Mon 9/77:10 pm
SEA
- SOU
1 stop16h 20m
Multiple Airlines
Mon 9/149:20 am
SOU
- SEA
2 stops41h 16m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,025
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 10/253:25 pm
SEA
- SOU
1 stop18h 35m
Delta
Mon 11/25:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/24![Delta logo]()
$1,030
This Delta deal was found by Cheapflights users on 7/24. 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 10/2411:05 pm
SEA
- SOU
2 stops26h 05m
Delta
Wed 11/48:40 am
SOU
- SEA
1 stop35h 07m
Delta
Deal found 7/24![Delta logo]()
$1,035
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 10/221:45 pm
SEA
- SOU
1 stop35h 00m
Delta
Mon 11/25:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/24![Delta logo]()
$1,080
This Delta deal was found by Cheapflights users on 7/26. 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 10/41:45 pm
SEA
- SOU
1 stop19h 05m
Delta
Mon 11/25:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,089
This Delta deal was found by Cheapflights users on 7/22. 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 9/61:50 pm
SEA
- SOU
1 stop19h 00m
Delta
Wed 11/45:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/22![Delta logo]()
$1,090
This Delta deal was found by Cheapflights users on 7/26. 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 10/311:05 pm
SEA
- SOU
2 stops25h 30m
Delta
Thu 11/55:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,093
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 July 26, 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 July 26, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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 10/55:45 pm
SEA
- SOU
1 stop15h 05m
Delta
Wed 11/45:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,089
This Expedia deal was found by Cheapflights users on 7/23. 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.
Sat 9/57:59 am
SEA
- SOU
2 stops16h 36m
Multiple Airlines
Sat 9/128:00 pm
SOU
- SEA
2 stops32h 21m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,114
This Delta deal was found by Cheapflights users on 7/26. 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 10/41:45 pm
SEA
- SOU
1 stop19h 05m
Delta
Mon 11/25:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,089
This Delta deal was found by Cheapflights users on 7/26. 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 10/45:45 pm
SEA
- SOU
1 stop15h 05m
Delta
Thu 11/55:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,089
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 9/65:45 pm
SEA
- SOU
1 stop15h 05m
Delta
Wed 9/165:20 pm
SOU
- SEA
1 stop26h 27m
Delta
Deal found 7/24![Delta logo]()
$1,089
This Delta deal was found by Cheapflights users on 7/26. 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 10/79:45 am
SEA
- SOU
2 stops23h 05m
Delta
Thu 11/55:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,093
This Delta deal was found by Cheapflights users on 7/22. 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 9/1211:59 pm
SEA
- SOU
2 stops24h 36m
Delta
Tue 11/35:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/22![Delta logo]()
$1,094
This Delta deal was found by Cheapflights users on 7/26. 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 10/11:45 pm
SEA
- SOU
1 stop35h 00m
Delta
Tue 11/35:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/26![Delta logo]()
$1,139
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 9/115:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Thu 11/55:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/22![Delta logo]()
$1,140
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 9/117:15 am
SEA
- SOU
2 stops17h 30m
Delta
Wed 11/48:40 am
SOU
- SEA
1 stop35h 07m
Delta
Deal found 7/22![Delta logo]()
$1,144
This Delta deal was found by Cheapflights users on 7/22. 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 9/1211:59 pm
SEA
- SOU
2 stops24h 36m
Delta
Sat 11/75:30 pm
SOU
- SEA
1 stop26h 17m
Delta
Deal found 7/22![Delta logo]()
$1,144
This Delta deal was found by Cheapflights users on 7/22. 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 9/1211:59 pm
SEA
- SOU
2 stops24h 36m
Delta
Sun 11/19:30 am
SOU
- SEA
1 stop34h 17m
Delta
Deal found 7/22![Delta logo]()
$1,144
Last-minute flights from Seattle to SouthamptonDiscover last-minute flight deals from Seattle to Southampton. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Southampton. Data last updated July 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 8/121:50 pm
SEA
- SOU
1 stop19h 45m
Delta
Mon 8/246:05 pm
SOU
- SEA
1 stop25h 32m
Delta
Deal found 7/24![Delta logo]()
$1,179
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 8/129:40 am
SEA
- SOU
2 stops23h 55m
Delta
Tue 8/256:05 pm
SOU
- SEA
1 stop25h 32m
Delta
Deal found 7/24![Delta logo]()
$1,184
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 8/135:45 pm
SEA
- SOU
1 stop15h 50m
Delta
Fri 8/219:15 am
SOU
- SEA
1 stop15h 12m
Delta
Deal found 7/24![Delta logo]()
$1,229
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 8/135:45 pm
SEA
- SOU
1 stop15h 50m
Delta
Sat 8/229:15 am
SOU
- SEA
1 stop15h 12m
Delta
Deal found 7/24![Delta logo]()
$1,279
This Delta deal was found by Cheapflights users on 7/24. 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.
Fri 8/147:15 am
SEA
- SOU
2 stops17h 30m
Delta
Tue 8/259:15 am
SOU
- SEA
1 stop15h 12m
Delta
Deal found 7/24![Delta logo]()
$1,234
This Delta deal was found by Cheapflights users on 7/24. 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.
Fri 8/147:15 am
SEA
- SOU
2 stops17h 30m
Delta
Sun 8/235:30 pm
SOU
- SEA
1 stop26h 07m
Delta
Deal found 7/24![Delta logo]()
$1,284
This Delta deal was found by Cheapflights users on 7/24. 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 8/155:45 pm
SEA
- SOU
1 stop15h 15m
Delta
Thu 8/209:15 am
SOU
- SEA
1 stop15h 12m
Delta
Deal found 7/24![Delta logo]()
$1,562
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 8/165:45 pm
SEA
- SOU
1 stop15h 50m
Delta
Sat 8/225:30 pm
SOU
- SEA
1 stop26h 07m
Delta
Deal found 7/24![Delta logo]()
$1,356
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 8/165:45 pm
SEA
- SOU
1 stop15h 50m
Delta
Thu 8/209:15 am
SOU
- SEA
1 stop15h 12m
Delta
Deal found 7/24![Delta logo]()
$1,512
This British Airways deal was found by Cheapflights users on 7/24. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:30 pm
SEA
- SOU
2 stops21h 55m
British Airways
Sun 8/239:20 am
SOU
- SEA
1 stop15h 50m
British Airways
Deal found 7/24![British Airways logo]()
$6,137
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 July 26, 2026.
Search for one-way flight options from Seattle to Southampton. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 pm
SEA
- SOU
3 stops40h 30m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:10 pm
SEA
- SOU
1 stop16h 20m
Aer Lingus
Deal found 7/25![Aer Lingus logo]()
$450
This Delta deal was found by Cheapflights users on 7/23. 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 9/301:50 pm
SEA
- SOU
1 stop19h 00m
Delta
Deal found 7/23![Delta logo]()
$533
This Delta deal was found by Cheapflights users on 7/23. 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 10/15:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Deal found 7/23![Delta logo]()
$583
This KAYAK deal was found by Cheapflights users on 7/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:10 pm
SEA
- SOU
1 stop16h 20m
Aer Lingus
Deal found 7/23![Aer Lingus logo]()
$710
This KAYAK deal was found by Cheapflights users on 7/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:10 pm
SEA
- SOU
1 stop29h 25m
Aer Lingus
Deal found 7/26![Aer Lingus logo]()
$727
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 July 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,025 (Kiwi.com) |
One-way from | $314 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,030 |
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 2,558,603 searches. Data last updated July 26, 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
Quickest round-trip
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Mon 10/5
5:45 pm-4:50 pm
1 stop15h 05m
Southampton Eastleigh
Wed 11/4
5:30 pm-11:47 am
1 stop26h 17m
$1,089
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Sun 10/4
1:45 pm-4:50 pm
1 stop19h 05m
Southampton Eastleigh
Mon 11/2
5:30 pm-11:47 am
1 stop26h 17m
$1,089
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Sun 10/4
5:45 pm-4:50 pm
1 stop15h 05m
Southampton Eastleigh
Thu 11/5
5:30 pm-11:47 am
1 stop26h 17m
$1,089
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Sun 9/6
5:45 pm-4:50 pm
1 stop15h 05m
Southampton Eastleigh
Wed 9/16
5:20 pm-11:47 am
1 stop26h 27m
$1,089
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Wed 10/7
9:45 am-4:50 pm
2 stops23h 05m
Southampton Eastleigh
Thu 11/5
5:30 pm-11:47 am
1 stop26h 17m
$1,093
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Sat 9/12
11:59 pm-8:35 am
2 stops24h 36m
Southampton Eastleigh
Tue 11/3
5:30 pm-11:47 am
1 stop26h 17m
$1,094
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Sat 9/5
7:59 am-8:35 am
2 stops16h 36m
Southampton Eastleigh
Sat 9/12
8:00 pm-8:21 pm
2 stops32h 21m
$1,114
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Thu 10/1
1:45 pm-8:45 am
1 stop35h 00m
Southampton Eastleigh
Tue 11/3
5:30 pm-11:47 am
1 stop26h 17m
$1,139
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Fri 9/11
5:45 pm-8:45 am
1 stop31h 00m
Southampton Eastleigh
Thu 11/5
5:30 pm-11:47 am
1 stop26h 17m
$1,140
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Fri 9/11
7:15 am-8:45 am
2 stops17h 30m
Southampton Eastleigh
Wed 11/4
8:40 am-11:47 am
1 stop35h 07m
$1,144
Showing 1-10 of 20 resultsSorted 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 July.
| 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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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