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$394+ Cheap flights from Washington 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOU
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Washington to Southampton

Keep the following information in mind while searching for Washington to Southampton flight deals. Data was last updated July 31, 2025.

Round-trip from

$825
(Ovago)

One-way from

$394
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$935
From Washington to Southampton Eastleigh
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One-way flight from Washington to Southampton Eastleigh
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Highest demand for flights based on searches. 15% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Washington to Southampton

Cheapest flights from Washington to Southampton
Explore the most affordable flight options available from Washington to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Ovago deal was found by Cheapflights users on 7/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:35 pmSEA - SOU
1 stop28h 40mAer Lingus
Wed 9/248:00 pmSOU - SEA
1 stop29h 50mAer Lingus
Deal found 7/31$825
This Delta deal was found by Cheapflights users on 7/31. 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 11/183:00 pmSEA - SOU
1 stop18h 00mDelta
Thu 11/278:50 amSOU - SEA
2 stops34h 06mDelta
Deal found 7/31$949
This KLM deal was found by Cheapflights users on 7/30. 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 9/132:10 pmSEA - SOU
1 stop34h 35mKLM
Sat 9/206:05 pmSOU - SEA
1 stop25h 40mKLM
Deal found 7/30$1,097
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sat 9/134:20 pmSEA - SOU
3 stops32h 05mMultiple Airlines
Sat 9/209:40 amSOU - SEA
3 stops34h 15mMultiple Airlines
Deal found 7/30$1,320

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 31, 2025.
Use the filters below to find and compare flights from Washington to Southampton that are best for you.

Fly from

Washington

Fly to

Southampton

Route

Depart

Return

Price

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 9/14

7:35 pm-8:15 am

1 stop28h 40m

Southampton Eastleigh

Wed 9/24

8:00 pm-5:50 pm

1 stop29h 50m

$825

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 11/18

3:00 pm-5:00 pm

1 stop18h 00m

Southampton Eastleigh

Thu 11/27

8:50 am-10:56 am

2 stops34h 06m

$949

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sat 9/13

2:10 pm-8:45 am

1 stop34h 35m

Southampton Eastleigh

Sat 9/20

6:05 pm-11:45 am

1 stop25h 40m

$1,097

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sat 9/13

4:20 pm-8:25 am

3 stops32h 05m

Southampton Eastleigh

Sat 9/20

9:40 am-11:55 am

3 stops34h 15m

$1,320

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sat 11/1

11:59 pm-2:50 pm

3 stops55h 51m

$394

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sat 11/1

10:39 am-8:45 am

2 stops39h 06m

$559

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 8/10

1:55 pm-5:50 pm

1 stop19h 55m

$592

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sat 9/13

5:40 pm-8:45 am

1 stop31h 05m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Washington to Southampton

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

What is the cheapest month to book a flight from State of Washington to Southampton?

Currently, November is the cheapest month in which you can book a flight from State of Washington to Southampton (average of $787). Flying from State of Washington to Southampton in June is currently the most expensive (average of $1,308). 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.

What is the cheapest time of day to fly from WA to SOU?

Find hourly flight availability from Washington to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from State of Washington to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. 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 Southampton. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Delta, KLM, and Aer Lingus from Washington to Southampton. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Southampton from Washington?

    If you book a flight to Southampton from Washington, you will be flying to Eastleigh, which is the city’s only airport. Southampton Eastleigh (SOU) is located 3.5 mi from the center of Southampton.

  • What are the cheapest airlines to fly from State of Washington to Southampton one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $559. However, be on the lookout for offers from Delta and KLM, as they are both options that can get you from State of Washington to Southampton for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Southampton 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 State of Washington to Southampton?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to Southampton (average of $787). Flying from State of Washington to Southampton in June is currently the most expensive (average of $1,308). 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

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Top 2 airlines flying from Washington to Southampton

Discover the top 2 airlines that operate flights from Washington to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$794Average$836FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$840Average$1,281FlexibilityNo cancel feeOn-time75%

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