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Cheap flights from Washington to Southampton from £456

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOU
26 févr. — 5 mars1
1 adult

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 21 février 2025.

Round-trip from

£548

One-way from

£456

Popular in

June

Cheapest in

January

Average price

£562
Aer Lingus
  • Aer Lingus
  • 7/4-14/4
  • 2 total stops
  • 32h 04m total
  • Washington to Southampton
Search Deals
20/6
  • 20/6
  • 3 total stops
  • 59h 55m total
  • Washington to Southampton
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£146 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 21 février 2025.

lun. 7/418:45SEA - SOU
1 stop16h 45mAer Lingus
lun. 14/409:40SOU - SEA
1 stop15h 19mAer Lingus
Deal found 21/2£548
mar. 1/415:45SEA - SOU
2 stops19h 45mMultiple Airlines
mar. 8/420:00SOU - SEA
2 stops29h 50mMultiple Airlines
Deal found 21/2£621
mar. 1/407:15SEA - SOU
2 stops41h 30mVirgin Atlantic
mar. 8/417:35SOU - SEA
2 stops30h 30mVirgin Atlantic
Deal found 20/2£658
lun. 21/418:10SEA - SOU
1 stop14h 50mDelta
mar. 29/417:35SOU - SEA
1 stop26h 10mDelta
Deal found 20/2£659
mar. 1/407:15SEA - SOU
2 stops17h 30mKLM
mar. 8/417:35SOU - SEA
1 stop26h 10mKLM
Deal found 21/2£660
lun. 10/319:50SEA - SOU
2 stops16h 35mBritish Airways
ven. 14/309:30SOU - SEA
1 stop16h 45mBritish Airways
Deal found 19/2£1,792

Find flights from Washington to Southampton within your budget

Customise 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 858,174 searches. Data last updated 21 février 2025.

Fly from

Washington

Fly to

Southampton

Route

Depart

Return

Price

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

lun. 7/4

18:45-19:30

1 stop16h 45m

Southampton Eastleigh

lun. 14/4

09:40-16:59

1 stop15h 19m

£548

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mar. 1/4

15:45-19:30

2 stops19h 45m

Southampton Eastleigh

mar. 8/4

20:00-17:50

2 stops29h 50m

£621

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

lun. 21/4

18:10-17:00

1 stop14h 50m

Southampton Eastleigh

mer. 30/4

17:35-11:40

1 stop26h 05m

£659

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mar. 1/4

07:15-08:45

2 stops17h 30m

Southampton Eastleigh

mar. 8/4

17:35-11:45

1 stop26h 10m

£660

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

lun. 10/3

19:50-19:25

2 stops16h 35m

Southampton Eastleigh

ven. 14/3

09:30-19:15

1 stop16h 45m

£1,792

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

ven. 20/6

13:15-09:10

3 stops59h 55m

£456

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mer. 9/7

14:05-08:45

1 stop34h 40m

£524

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mer. 9/7

13:45-17:00

2 stops19h 15m

£528

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mar. 8/7

00:19-08:40

2 stops24h 21m

£574

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

ven. 20/6

11:25-17:00

2 stops21h 35m

£735

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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 return 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.

Travel insights for flights from Washington to Southampton

Get recent, data-driven insights about flights from Washington to Southampton including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from State of Washington to Southampton (average of £203). Flying from State of Washington to Southampton in November is currently the most expensive (average of £262). 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 Southampton by month

Plan your trip to Southampton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

Temperature in Southampton by month

Plan your trip to Southampton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southampton, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 21 février 2025.
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus
7.0
Good
1,070 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

British Airways
6.6
Okay
6,762 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly into when you book flights from Washington to Southampton.

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

    For one-way options, check prices for KLM. According to our data, you can fly for as low as £524. Users have also found prices from £528 and £574 on Delta and Aer Lingus, respectively.

  • 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 holiday 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, September is the cheapest month in which you can book a flight from State of Washington to Southampton (average of £203). Flying from State of Washington to Southampton in November is currently the most expensive (average of £262). 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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Alternative routes for Washington to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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