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Cheap flights from Southampton to Washington, D.C. from £418

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — WAS
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Southampton to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Washington, D.C. (WAS). 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 13 June 2025.

Round-trip from

£817

One-way from

£418

Popular in

July

Cheapest in

February

Average price

£613
Virgin Atlantic
  • Virgin Atlantic
  • 28/7-4/8
  • 3 total stops
  • 33h 05m total
  • Southampton to Washington, D.C.
24/6
  • 24/6
  • 3 total stops
  • 38h 36m total
  • Southampton to Washington, D.C.
Highest demand for flights based on searches. 14% potential increase in price (£68 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from Southampton to Washington, D.C.

Cheapest flights from Southampton to Washington, D.C.
Explore the most affordable flight options available from Southampton to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Mon 28/709:20SOU - IAD
1 stop11h 15mVirgin Atlantic
Mon 4/806:00IAD - SOU
2 stops21h 50mVirgin Atlantic
Deal found 12/6£817
Mon 28/709:20SOU - IAD
2 stops17h 56mDelta
Mon 4/813:00IAD - SOU
2 stops14h 50mDelta
Deal found 12/6£821
Mon 28/709:20SOU - DCA
2 stops19h 15mDelta
Mon 4/819:35DCA - SOU
2 stops17h 15mDelta
Deal found 12/6£821
Sun 27/709:10SOU - IAD
2 stops53h 27mMultiple Airlines
Sun 3/822:15IAD - SOU
1 stop16h 15mMultiple Airlines
Deal found 12/6£826
Sun 27/717:35SOU - IAD
1 stop27h 00mKLM
Sun 3/817:25IAD - SOU
1 stop10h 20mKLM
Deal found 12/6£846
Sun 15/609:10SOU - IAD
1 stop14h 45mAer Lingus
Sun 22/620:25IAD - SOU
1 stop30h 50mAer Lingus
Deal found 11/6£856
Mon 28/720:00SOU - DCA
3 stops31h 27mMultiple Airlines
Mon 4/806:00DCA - SOU
2 stops32h 30mMultiple Airlines
Deal found 12/6£896
Sat 26/709:20SOU - BWI
2 stops16h 28mDelta
Sat 2/808:18BWI - SOU
2 stops19h 27mDelta
Deal found 11/6£925
Sun 15/609:10SOU - BWI
2 stops15h 15mMultiple Airlines
Sun 22/620:30BWI - SOU
3 stops31h 20mMultiple Airlines
Deal found 11/6£1,035
Sun 27/709:10SOU - BWI
2 stops15h 25mAer Lingus
Sun 3/821:20BWI - SOU
2 stops30h 20mAer Lingus
Deal found 12/6£1,096

Cheapflights Fare Finder

Customise your flight search to find flights from Southampton to Washington, D.C. 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 13 June 2025.
Use the filters below to find and compare flights from Southampton to Washington, D.C. that are best for you.

Fly from

Southampton

Fly to

Washington, D.C.

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 28/7

09:20-15:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Mon 4/8

06:00-08:50

2 stops21h 50m

£817

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 28/7

09:20-22:16

2 stops17h 56m

Washington, D.C. Dulles Intl

Mon 4/8

13:00-08:50

2 stops14h 50m

£821

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 28/7

09:20-23:35

2 stops19h 15m

Washington, D.C. Reagan-National

Mon 4/8

19:35-17:50

2 stops17h 15m

£821

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sun 27/7

09:10-09:37

2 stops53h 27m

Washington, D.C. Dulles Intl

Sun 3/8

22:15-19:30

1 stop16h 15m

£826

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Sun 27/7

17:35-15:35

1 stop27h 00m

Washington, D.C. Dulles Intl

Sun 3/8

17:25-08:45

1 stop10h 20m

£846

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Mon 28/7

20:00-22:27

3 stops31h 27m

Washington, D.C. Reagan-National

Mon 4/8

06:00-19:30

2 stops32h 30m

£896

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sat 26/7

09:20-20:48

2 stops16h 28m

Baltimore/Washington

Sat 2/8

08:18-08:45

2 stops19h 27m

£925

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sat 26/7

09:40-22:21

2 stops17h 41m

Baltimore/Washington

Sat 2/8

07:10-15:00

3 stops26h 50m

£1,060

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sun 27/7

09:10-19:35

2 stops15h 25m

Baltimore/Washington

Sun 3/8

21:20-08:40

2 stops30h 20m

£1,096

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Tue 24/6

09:10-18:46

3 stops38h 36m

£418

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Best time to book a flight from Southampton to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Southampton 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.

Cheapflights Insights

Everything you need to know about your flight from Southampton to Washington, D.C.

What is the cheapest month to book a flight from Southampton to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Southampton to Washington, D.C. (average of £565). Flying from Southampton to Washington, D.C. in July is currently the most expensive (average of £946). 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 Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 13 June 2025.

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!
8.0
Very Good

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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 Southampton to Washington, D.C.. 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 from for flights from Southampton to Washington, D.C.?

    Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Eastleigh; the airport handles an average of 0 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Southampton airport to Washington, D.C.. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

  • What are the cheapest airlines flying from Southampton to Washington, D.C. round-trip?

    Our cheapest airline available from Southampton to Washington, D.C. is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £817 on this airline. Additional options worth looking into are Delta and KLM, starting at £821 and £846 round-trip.

  • What are the most popular routes from Southampton to Washington, D.C.?

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

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

  • How can I find direct flights from Southampton to Washington, D.C.?

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

  • Can I find deals for business class flights from Southampton to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Southampton to Washington, D.C. 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 Southampton to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Southampton to Washington, D.C. (average of £565). Flying from Southampton to Washington, D.C. in July is currently the most expensive (average of £946). 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

Travelling to a place near Southampton?

Book flights to Southampton if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
Hanover
Oxon Hill
College Park
Laurel
Tysons

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