$346+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOU
Jul 12 — Jul 191
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
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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 June 12, 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 June 12, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 9/75:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Wed 9/165:20 pm
SOU
- SEA
1 stop26h 27m
Delta
Deal found 6/8![Delta logo]()
$1,034
This Delta deal was found by Cheapflights users on 6/8. 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 9/67:15 am
SEA
- SOU
2 stops17h 20m
Delta
Thu 9/175:20 pm
SOU
- SEA
1 stop31h 15m
Delta
Deal found 6/8![Delta logo]()
$1,038
This Delta deal was found by Cheapflights users on 6/8. 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 9/67:15 am
SEA
- SOU
2 stops17h 20m
Delta
Mon 9/149:05 am
SOU
- SEA
2 stops43h 11m
Delta
Deal found 6/8![Delta logo]()
$1,049
This Delta deal was found by Cheapflights users on 6/8. 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 9/75:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Fri 9/185:20 pm
SOU
- SEA
1 stop26h 27m
Delta
Deal found 6/8![Delta logo]()
$1,084
This Delta deal was found by Cheapflights users on 6/8. 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 9/67:15 am
SEA
- SOU
2 stops17h 20m
Delta
Fri 9/185:20 pm
SOU
- SEA
1 stop26h 27m
Delta
Deal found 6/8![Delta logo]()
$1,088
This Delta deal was found by Cheapflights users on 6/10. 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 8/31:50 pm
SEA
- SOU
1 stop19h 45m
Delta
Thu 8/209:15 am
SOU
- SEA
1 stop34h 22m
Delta
Deal found 6/10![Delta logo]()
$1,091
This Delta deal was found by Cheapflights users on 6/11. 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 8/185:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Mon 8/246:05 pm
SOU
- SEA
1 stop25h 32m
Delta
Deal found 6/11![Delta logo]()
$1,092
This Delta deal was found by Cheapflights users on 6/8. 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 9/75:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Sat 9/195:20 pm
SOU
- SEA
2 stops34h 56m
Delta
Deal found 6/8![Delta logo]()
$1,094
This Delta deal was found by Cheapflights users on 6/11. 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 8/1811:59 pm
SEA
- SOU
2 stops24h 46m
Delta
Tue 8/256:05 pm
SOU
- SEA
1 stop25h 32m
Delta
Deal found 6/11![Delta logo]()
$1,096
This Delta deal was found by Cheapflights users on 6/8. 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 9/67:15 am
SEA
- SOU
2 stops17h 20m
Delta
Sat 9/195:20 pm
SOU
- SEA
2 stops34h 56m
Delta
Deal found 6/8![Delta logo]()
$1,099
This Delta deal was found by Cheapflights users on 6/10. 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 8/47:15 am
SEA
- SOU
2 stops17h 30m
Delta
Thu 8/206:05 pm
SOU
- SEA
2 stops34h 25m
Delta
Deal found 6/10![Delta logo]()
$1,106
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 June 12, 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 June 12, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 9/85:45 pm
SEA
- SOU
1 stop15h 05m
Delta
Mon 9/145:20 pm
SOU
- SEA
1 stop31h 15m
Delta
Deal found 6/8![Delta logo]()
$1,034
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/2711:25 pm
SEA
- SOU
2 stops37h 20m
Multiple Airlines
Mon 8/39:20 am
SOU
- SEA
1 stop15h 50m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,136
This KLM deal was found by Cheapflights users on 6/12. 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 7/271:45 pm
SEA
- SOU
1 stop35h 00m
KLM
Mon 8/36:05 pm
SOU
- SEA
1 stop30h 22m
KLM
Deal found 6/12![KLM logo]()
$1,174
This Delta deal was found by Cheapflights users on 6/8. 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 9/712:36 pm
SEA
- SOU
2 stops36h 09m
Delta
Wed 9/165:20 pm
SOU
- SEA
1 stop26h 27m
Delta
Deal found 6/8![Delta logo]()
$1,038
This Delta deal was found by Cheapflights users on 6/8. 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 9/97:20 am
SEA
- SOU
2 stops25h 30m
Delta
Tue 9/155:20 pm
SOU
- SEA
1 stop26h 27m
Delta
Deal found 6/8![Delta logo]()
$1,038
This Delta deal was found by Cheapflights users on 6/10. 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 8/45:45 pm
SEA
- SOU
1 stop31h 00m
Delta
Thu 8/209:15 am
SOU
- SEA
1 stop34h 22m
Delta
Deal found 6/10![Delta logo]()
$1,091
This Delta deal was found by Cheapflights users on 6/10. 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 8/31:50 pm
SEA
- SOU
1 stop19h 45m
Delta
Thu 8/209:15 am
SOU
- SEA
1 stop34h 22m
Delta
Deal found 6/10![Delta logo]()
$1,091
This Delta deal was found by Cheapflights users on 6/11. 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 8/1811:05 am
SEA
- SOU
2 stops37h 40m
Delta
Mon 8/246:05 pm
SOU
- SEA
1 stop25h 32m
Delta
Deal found 6/11![Delta logo]()
$1,096
This Delta deal was found by Cheapflights users on 6/11. 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 8/207:15 am
SEA
- SOU
2 stops26h 20m
Delta
Sun 8/235:30 pm
SOU
- SEA
1 stop26h 07m
Delta
Deal found 6/11![Delta logo]()
$1,196
Last-minute flights from Seattle to SouthamptonDiscover last-minute flight deals from Seattle to Southampton. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Southampton. Data last updated June 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Thu 7/97:10 pm
SEA
- SOU
2 stops28h 10m
Multiple Airlines
Fri 7/319:20 am
SOU
- SEA
1 stop15h 50m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,229
This KLM deal was found by Cheapflights users on 6/11. 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 7/125:40 pm
SEA
- SOU
1 stop31h 05m
KLM
Tue 7/286:05 pm
SOU
- SEA
1 stop25h 28m
KLM
Deal found 6/11![KLM logo]()
$1,191
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Sun 7/1210:45 am
SEA
- SOU
3 stops25h 20m
Multiple Airlines
Tue 7/289:15 am
SOU
- SEA
2 stops32h 25m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,312
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Thu 7/233:40 pm
SEA
- SOU
2 stops19h 50m
Multiple Airlines
Thu 7/308:00 pm
SOU
- SEA
1 stop29h 10m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,181
This KLM deal was found by Cheapflights users on 6/8. 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.
Thu 7/235:40 pm
SEA
- SOU
1 stop31h 05m
KLM
Thu 7/306:05 pm
SOU
- SEA
1 stop25h 28m
KLM
Deal found 6/8![KLM logo]()
$1,225
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/2711:25 pm
SEA
- SOU
2 stops37h 20m
Multiple Airlines
Mon 8/39:20 am
SOU
- SEA
1 stop15h 50m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,136
This KLM deal was found by Cheapflights users on 6/12. 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 7/271:45 pm
SEA
- SOU
1 stop35h 00m
KLM
Mon 8/36:05 pm
SOU
- SEA
1 stop30h 22m
KLM
Deal found 6/12![KLM logo]()
$1,174
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 June 12, 2026.
Search for one-way flight options from Seattle to Southampton. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 10/197:00 pm
SEA
- SOU
3 stops29h 05m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 10/127:00 pm
SEA
- SOU
3 stops29h 05m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Tue 10/133:35 pm
SEA
- SOU
3 stops33h 05m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 10/183:40 pm
SEA
- SOU
3 stops43h 50m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$368
This KLM deal was found by Cheapflights users on 6/8. 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 10/125:45 pm
SEA
- SOU
1 stop31h 00m
KLM
Deal found 6/8![KLM logo]()
$423
This Delta deal was found by Cheapflights users on 6/8. 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 10/126:05 am
SEA
- SOU
2 stops18h 30m
Delta
Deal found 6/8![Delta logo]()
$427
This KAYAK deal was found by Cheapflights users on 6/7. 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.
Thu 7/167:10 pm
SEA
- SOU
1 stop29h 30m
Aer Lingus
Deal found 6/7![Aer Lingus logo]()
$916
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 June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,034 (Delta) |
One-way from | $346 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,169 |
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 June 12, 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
Tue 9/8
5:45 pm-4:50 pm
1 stop15h 05m
Southampton Eastleigh
Mon 9/14
5:20 pm-4:35 pm
1 stop31h 15m
$1,034
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Mon 9/7
12:36 pm-8:45 am
2 stops36h 09m
Southampton Eastleigh
Wed 9/16
5:20 pm-11:47 am
1 stop26h 27m
$1,038
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Wed 9/9
7:20 am-4:50 pm
2 stops25h 30m
Southampton Eastleigh
Tue 9/15
5:20 pm-11:47 am
1 stop26h 27m
$1,038
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Tue 8/4
5:45 pm-8:45 am
1 stop31h 00m
Southampton Eastleigh
Thu 8/20
9:15 am-11:37 am
1 stop34h 22m
$1,091
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Mon 8/3
1:50 pm-5:35 pm
1 stop19h 45m
Southampton Eastleigh
Thu 8/20
9:15 am-11:37 am
1 stop34h 22m
$1,091
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Tue 8/18
11:05 am-8:45 am
2 stops37h 40m
Southampton Eastleigh
Mon 8/24
6:05 pm-11:37 am
1 stop25h 32m
$1,096
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Mon 7/27
11:25 pm-8:45 pm
2 stops37h 20m
Southampton Eastleigh
Mon 8/3
9:20 am-5:10 pm
1 stop15h 50m
$1,136
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Mon 7/27
1:45 pm-8:45 am
1 stop35h 00m
Southampton Eastleigh
Mon 8/3
6:05 pm-4:27 pm
1 stop30h 22m
$1,174
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Thu 8/20
7:15 am-5:35 pm
2 stops26h 20m
Southampton Eastleigh
Sun 8/23
5:30 pm-11:37 am
1 stop26h 07m
$1,196
Cheapest one-way
SeattleSouthampton
SEA - SOU
SEASOU
Seattle/Tacoma Intl
Tue 10/20
1:45 pm-8:35 am
1 stop34h 50m
$423
Showing 1-10 of 13 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 June.
| 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 | |
| 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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