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Cheap flights from Southampton to Washington, D.C. from £512

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — WAS
14 Nov — 21 Nov1
1 adult
1 adult, Economy

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 15 October 2025.

Round-trip from

£512

Popular in

July

Cheapest in

February

Average price

£560
Virgin Atlantic
  • Virgin Atlantic
  • 27/11-4/12
  • 2 total stops
  • 30h 10m total
  • Southampton to Washington, D.C.
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Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Southampton to Washington, D.C.

Enter your travel dates to find the best prices.

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 15 October 2025.

Thu 27/1108:50SOU - IAD
1 stop12h 15mVirgin Atlantic
Thu 4/1218:05IAD - SOU
1 stop17h 55mVirgin Atlantic
Deal found 13/10£512
Thu 27/1108:50SOU - BWI
2 stops20h 36mDelta
Thu 4/1207:02BWI - SOU
2 stops20h 03mDelta
Deal found 13/10£530
Mon 22/1218:05SOU - IAD
2 stops28h 56mVirgin Atlantic
Thu 1/106:00IAD - SOU
2 stops21h 05mVirgin Atlantic
Deal found 13/10£550
Thu 27/1108:50SOU - IAD
1 stop12h 15mDelta
Thu 4/1212:19IAD - SOU
2 stops14h 46mDelta
Deal found 13/10£564
Mon 22/1218:05SOU - IAD
1 stop27h 00mKLM
Thu 1/118:05IAD - SOU
1 stop17h 55mKLM
Deal found 13/10£728
Mon 22/1209:30SOU - IAD
1 stop15h 00mAer Lingus
Thu 1/117:05IAD - SOU
1 stop10h 40mAer Lingus
Deal found 13/10£751
Thu 27/1108:50SOU - IAD
3 stops34h 50mMultiple Airlines
Thu 4/1218:00IAD - SOU
2 stops20h 20mMultiple Airlines
Deal found 13/10£760
Thu 27/1109:30SOU - BWI
3 stops29h 06mMultiple Airlines
Thu 4/1210:40BWI - SOU
2 stops28h 00mMultiple Airlines
Deal found 13/10£839
Mon 22/1219:55SOU - IAD
2 stops23h 40mMultiple Airlines
Thu 1/119:40IAD - SOU
2 stops16h 30mMultiple Airlines
Deal found 13/10£851
Mon 3/1109:30SOU - IAD
1 stop15h 00mBritish Airways
Sat 15/1117:05IAD - SOU
1 stop10h 40mBritish Airways
Deal found 13/10£858
Mon 22/1218:05SOU - DCA
2 stops26h 16mKLM
Thu 1/112:38DCA - SOU
2 stops14h 27mKLM
Deal found 13/10£1,387
Mon 22/1220:10SOU - BWI
2 stops27h 35mBritish Airways
Thu 1/120:35BWI - SOU
2 stops31h 40mBritish Airways
Deal found 13/10£1,413

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 15 October 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

Thu 27/11

08:50-16:05

1 stop12h 15m

Washington, D.C. Dulles Intl

Thu 4/12

18:05-17:00

1 stop17h 55m

£512

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 27/11

08:50-00:26

2 stops20h 36m

Baltimore/Washington

Thu 4/12

07:02-08:05

2 stops20h 03m

£530

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Wed 1/4

09:20-00:11

2 stops19h 51m

Baltimore/Washington

Sun 5/4

08:10-17:00

2 stops27h 50m

£536

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 22/12

18:05-18:01

2 stops28h 56m

Washington, D.C. Dulles Intl

Thu 1/1

06:00-08:05

2 stops21h 05m

£550

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 27/11

08:50-16:05

1 stop12h 15m

Washington, D.C. Dulles Intl

Thu 4/12

12:19-08:05

2 stops14h 46m

£564

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/3

18:05-16:05

1 stop27h 00m

Washington, D.C. Dulles Intl

Mon 9/3

12:30-17:00

2 stops24h 30m

£582

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 5/3

08:50-16:05

1 stop12h 15m

Washington, D.C. Dulles Intl

Mon 9/3

12:30-08:10

2 stops15h 40m

£585

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Wed 1/4

09:20-23:33

2 stops19h 13m

Washington, D.C. Reagan-National

Sun 5/4

09:00-17:00

2 stops27h 00m

£694

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 22/12

09:30-19:30

1 stop15h 00m

Washington, D.C. Dulles Intl

Thu 1/1

17:05-08:45

1 stop10h 40m

£751

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Mon 22/12

08:40-19:15

2 stops15h 35m

Washington, D.C. Dulles Intl

Thu 1/1

18:05-17:00

1 stop17h 55m

£756

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 20 results
1
2

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 £229). Flying from Southampton to Washington, D.C. in July is currently the most expensive (average of £482). 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’s the top stopover airport for flights from Southampton to Washington, D.C.?

Share of one-stop return flights from Southampton to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Dublin (DUB) – chosen by Cheapflights users on 85% of one-stop itineraries from Southampton to Washington, D.C. on Cheapflights.

What’s the cheapest stopover airport for flights from Southampton to Washington, D.C.?

Average return fare for one-stop flights from Southampton to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Dublin (DUB) is the most affordable one-stop option, with an average return flight price of £602.

What’s the fastest stopover option from Southampton to Washington, D.C.?

Shortest average travel time for one-stop one-way flights from Southampton to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 11h 10m.

Which airport typically offers the quickest stopover for flights from Southampton to Washington, D.C.?

Average stopover duration for one-stop one-way flights from Southampton to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 28m.

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 15 October 2025.
Read reviews from past customers who have flown with Aer Lingus from Southampton to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,337 reviews
Check prices

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Food

6.5

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,337 reviews
Aer Lingus
7.2
Good
1,337 reviews
Check prices

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Food

6.5

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

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.

  • How long is the flight from Southampton to Washington, D.C.?

    For as low as £512, Virgin Atlantic can have you in Washington, D.C. from Southampton in 12h 15m. The distance from Southampton to Washington, D.C. is about 3639 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 £592. Virgin Atlantic flights start at £827 while deals on British Airways start at £1,434 one-way.

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

    The most popular route from Southampton to Washington, D.C. is Southampton Eastleigh - Washington, D.C. Dulles Intl. You may also consider Southampton Eastleigh - Baltimore/Washington or Southampton Eastleigh - Washington, D.C. Reagan-National.

  • 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 £229). Flying from Southampton to Washington, D.C. in July is currently the most expensive (average of £482). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park
Tysons

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Alternative routes for Southampton to Washington, D.C.

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

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