Find flights
When to book
Airlines
FAQs

Cheap flights from Southampton to Washington, D.C. from £499

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SOU — WAS
24 Mar — 31 Mar1
1 adult
Sun 24/3
Sun 31/3

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 19 March 2024.

Round-trip from

£440
From Southampton Eastleigh to Washington, D.C. (WAS)

What is the cheapest day to fly round-trip from Southampton to Washington, D.C.?

Flights from Southampton to Washington, D.C. are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

How far in advance should I book a flight from Southampton to Washington, D.C.?

Travelers have found it’s best to book a flight 57 days in advance to save up to 31% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Southampton to Washington, D.C. 1-2 weeks in advance for as low as £541, or £599 for flights within the next 24 hours.

What is the cheapest month to fly from Southampton to Washington, D.C.?

September can be a great time to fly to Washington, D.C. from Southampton with a flight ticket averaging about £519. Cheapflights users have found deals in the month of September for as cheap as £276. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Southampton to Washington, D.C. (SOU - WAS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Washington, D.C. as you normally would.

Cheap KLM flights from Southampton to Washington, D.C.

Explore cheap flight options specifically provided by KLM for the route between Southampton and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Take a look at some of the lowest-priced KLM flights heading from Southampton to Washington, D.C.. Make sure to double check the flight details before booking.
Wed 24/407:55SOU - IAD
2 stops38h 31mKLM
Sun 28/417:25IAD - SOU
1 stop18h 25mKLM
Deal found 17/3£697
Wed 24/407:55SOU - IAD
1 stop13h 05mKLM
Sun 28/417:25IAD - SOU
1 stop18h 25mKLM
Deal found 17/3£699
Fri 17/507:55SOU - IAD
1 stop12h 40mKLM
Tue 21/517:50IAD - SOU
1 stop20h 20mKLM
Deal found 17/3£735

Cheap Delta flights from Southampton to Washington, D.C.

Explore cheap flight options specifically provided by Delta for the route between Southampton and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Some of the best deals we've found on Delta flights travelling from Southampton to Washington, D.C.. Deals are refreshing constantly so come back soon for more options.
Wed 24/407:55SOU - BWI
2 stops30h 24mDelta
Sun 28/419:55BWI - SOU
2 stops39h 55mDelta
Deal found 17/3£639
Thu 4/407:55SOU - IAD
1 stop12h 40mDelta
Sun 14/417:25IAD - SOU
1 stop20h 45mDelta
Deal found 18/3£968
Wed 24/708:30SOU - IAD
1 stop12h 30mDelta
Sat 27/717:25IAD - SOU
1 stop10h 10mDelta
Deal found 16/3£1,616

Cheap Southampton to Washington, D.C. flights in March & April 2024

Find cheap flight options from Southampton to Washington, D.C. specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 905,048 searches. Prices were last updated on 19 March 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 24/407:55SOU - BWI
2 stops30h 24mDelta
Sun 28/419:55BWI - SOU
2 stops39h 55mDelta
Deal found 17/3£639
Wed 24/407:55SOU - DCA
2 stops19h 51mVirgin Atlantic
Sun 28/419:15DCA - SOU
2 stops18h 55mVirgin Atlantic
Deal found 17/3£660
Wed 24/407:55SOU - IAD
2 stops38h 31mKLM
Sun 28/409:40IAD - SOU
2 stops16h 45mKLM
Deal found 17/3£697
Wed 24/407:55SOU - IAD
1 stop13h 05mKLM
Sun 28/417:25IAD - SOU
1 stop18h 25mKLM
Deal found 17/3£699
Thu 4/407:55SOU - IAD
1 stop12h 40mDelta
Sun 14/417:25IAD - SOU
1 stop20h 45mDelta
Deal found 18/3£968
Thu 4/408:40SOU - IAD
2 stops16h 50mBritish Airways
Sun 14/422:50IAD - SOU
2 stops15h 20mBritish Airways
Deal found 18/3£1,147
Thu 4/408:40SOU - BWI
2 stops15h 40mBritish Airways
Sun 14/413:51BWI - SOU
2 stops14h 19mBritish Airways
Deal found 18/3£1,151
Thu 4/408:40SOU - IAD
2 stops16h 50mBritish Airways
Sun 14/417:10IAD - SOU
1 stop11h 00mBritish Airways
Deal found 18/3£1,158
Thu 18/409:40SOU - IAD
1 stop11h 00mBritish Airways
Sat 20/417:10IAD - SOU
1 stop11h 00mBritish Airways
Deal found 18/3£2,648

Southampton to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between Southampton and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 24/407:55SOU - BWI
2 stops30h 24mDelta
Sun 28/419:55BWI - SOU
2 stops39h 55mDelta
Deal found 17/3£639
Wed 24/407:55SOU - DCA
2 stops19h 51mVirgin Atlantic
Sun 28/419:15DCA - SOU
2 stops18h 55mVirgin Atlantic
Deal found 17/3£660
Wed 24/407:55SOU - IAD
2 stops38h 31mKLM
Sun 28/417:25IAD - SOU
1 stop18h 25mKLM
Deal found 17/3£697
Wed 24/407:55SOU - IAD
1 stop13h 05mKLM
Sun 28/417:25IAD - SOU
1 stop18h 25mKLM
Deal found 17/3£699
Wed 5/609:40SOU - IAD
1 stop11h 00mBritish Airways
Tue 18/613:13IAD - SOU
2 stops14h 57mBritish Airways
Deal found 18/3£939
Wed 5/609:40SOU - IAD
1 stop11h 00mBritish Airways
Tue 18/617:10IAD - SOU
1 stop11h 00mBritish Airways
Deal found 18/3£939
Wed 5/608:40SOU - IAD
2 stops16h 50mBritish Airways
Tue 18/613:13IAD - SOU
2 stops14h 57mBritish Airways
Deal found 18/3£945
Tue 4/609:40SOU - IAD
1 stop14h 30mBritish Airways
Tue 18/613:13IAD - SOU
2 stops14h 57mBritish Airways
Deal found 18/3£953
Tue 4/609:40SOU - IAD
1 stop14h 30mBritish Airways
Tue 18/617:10IAD - SOU
1 stop11h 00mBritish Airways
Deal found 18/3£955

One-way flights to Washington, D.C. from Southampton

Search for one-way flight options from Southampton to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Take a look at some of the one-way flights we've detected from Southampton to Washington, D.C.. For those needing a return trip from Southampton, there is a search form available above.
Sat 7/916:15SOU - IAD
1 stop31h 55mAer Lingus
Deal found 17/3£499
Sat 7/916:15SOU - BWI
3 stops30h 25mMultiple Airlines
Deal found 17/3£547
Sat 7/910:00SOU - BWI
2 stops14h 25mMultiple Airlines
Deal found 17/3£554
Sat 7/909:40SOU - DCA
2 stops15h 15mMultiple Airlines
Deal found 17/3£996
Sat 10/808:30SOU - IAD
1 stop12h 05mDelta
Deal found 16/3£1,534
Sat 10/810:00SOU - IAD
2 stops15h 30mBritish Airways
Deal found 16/3£1,640
Sat 6/407:55SOU - DCA
2 stops17h 20mDelta
Deal found 18/3£1,774
Sun 28/409:25SOU - IAD
1 stop11h 10mDelta
Deal found 17/3£1,776
Tue 30/408:40SOU - BWI
2 stops15h 40mBritish Airways
Deal found 17/3£2,122

Find flights from Southampton to Washington, D.C. within your budget

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 905,048 searches. Data last updated 19 March 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£639 - £1,355

Route

Depart

Return

Price

Southampton EastleighBaltimore/Washington

SOU - BWI

SOUBWI

Southampton Eastleigh

Wed 24/4

2 stops30h 24m

Baltimore/Washington

Sun 28/4

2 stops39h 55m

£639

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 17/5

2 stops14h 26m

Washington, D.C. Dulles Intl

Tue 21/5

2 stops13h 01m

£657

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 24/4

2 stops19h 56m

Washington, D.C. Dulles Intl

Sun 28/4

1 stop20h 45m

£660

Southampton EastleighWashington, D.C. Reagan-National

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 24/4

2 stops19h 51m

Washington, D.C. Reagan-National

Sun 28/4

2 stops18h 55m

£660

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 24/4

2 stops38h 31m

Washington, D.C. Dulles Intl

Sun 28/4

1 stop18h 25m

£697

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Wed 24/4

1 stop13h 05m

Washington, D.C. Dulles Intl

Sun 28/4

1 stop18h 25m

£699

Southampton EastleighBaltimore/Washington

SOU - BWI

SOUBWI

Southampton Eastleigh

Fri 17/5

2 stops20h 25m

Baltimore/Washington

Tue 21/5

2 stops25h 38m

£727

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Tue 9/7

1 stop11h 00m

Washington, D.C. Dulles Intl

Thu 25/7

2 stops15h 25m

£957

Southampton EastleighBaltimore/Washington

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 8/4

2 stops52h 22m

Baltimore/Washington

Sat 13/4

2 stops31h 00m

£1,355

Flights are sorted by cheapest first

Deals found on 17/3

When is the cheapest time to fly from Southampton to Washington, D.C.?

Use this chart to determine the cheapest time to fly return from Southampton to Washington, D.C.. Price data was last updated on 10 March 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Southampton to Washington, D.C. flight should consider departing on Friday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Washington, D.C. by month

Plan your trip from Southampton to Washington, D.C. by taking into account the cheapest months to travel. The average price of a one-way flight from Southampton to Washington, D.C. is currently £1,271 while a return flight costs £783. Price data was last updated on 10 March 2024.

Currently, January is the cheapest month in which you can book a flight from Southampton to Washington, D.C. (average of £598). Flying from Southampton to Washington, D.C. in June is currently the most expensive (average of £837). 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.

January

£470

February

£489

March

£547

April

£526

May

£545

June

£657

July

£643

August

£591

September

£547

October

£504

November

£475

December

£486

Temperature and rainfall in Washington, D.C. by month

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

WAS

Temperature

2 - 27 °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 19 March 2024.
Get a feel of what it's like to fly with KLM, Delta and British Airways from Southampton to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
11,551 reviews

Entertainment

8.1

Comfort

7.9

Overall

8.1

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very Good
11,551 reviews
8.1
Very Good
11,551 reviews

Entertainment

8.1

Comfort

7.9

Overall

8.1

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,720 reviews
8.1
Very Good
11,551 reviews

Entertainment

8.1

Comfort

7.9

Overall

8.1

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.7
Good
762 reviews
8.1
Very Good
11,551 reviews

Entertainment

8.1

Comfort

7.9

Overall

8.1

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
1,404 reviews
8.1
Very Good
11,551 reviews

Entertainment

8.1

Comfort

7.9

Overall

8.1

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

6.9
Okay
7,015 reviews
8.1
Very Good
11,551 reviews

Entertainment

8.1

Comfort

7.9

Overall

8.1

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

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 1 airline has 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.

  • Can I find flights from Southampton to Washington, D.C. for under £700 on Cheapflights?

    Yes, there are multiple flights from Southampton to Washington, D.C. for under £700. The cheapest flight booked recently is on Delta for just £639, but on average you can expect to pay £868.

  • 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 Delta. Our recent data shows that you can find tickets from as low as £639 on this airline. Additional options worth looking into are Virgin Atlantic and KLM, starting at £660 and £697 round-trip.

  • What are the cheapest airlines to fly from Southampton to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at £499. Delta flights start at £1,534 while deals on British Airways start at £1,640 one-way.

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

  • What does SOU to IAD mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Southampton Eastleigh Airport to Washington, D.C. Dulles Intl Airport flight would often be abbreviated as a SOU to IAD flight. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are other airports near this flight route and their unique identifiers/IATA codes.

See more FAQs

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.

Top airline flying from Southampton to Washington, D.C.

Discover the top airline that operate flights from Southampton to Washington, D.C.. 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 905,048 searches. Data last updated 19 March 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£540Average£588FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Search flights from Southampton to Washington, D.C. by cabin class

Find flights from Southampton to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Washington, D.C.?

Deals for Southampton to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Washington, D.C.?

Cheapflights helps you find that perfect flight to Washington, D.C. from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Southampton to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Southampton to Washington, D.C. become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.