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

For as low as £655, Delta can have you in Washington, D.C. from Southampton in 11h 30m. 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.

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.

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).

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.

What is the cheapest time of day to fly from SOU to 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.

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 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.

£420+ Cheap Flights from Southampton to Washington, D.C.

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

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 26 August 2026.

Mon 5/1009:20 -

1 stop11h 25m

Mon 12/1020:55 -

1 stop17h 35m

Deal found 21/8£623

Fri 9/1009:05 -

1 stop11h 30m

Fri 16/1017:30 -

1 stop10h 15m

Deal found 25/8£638

Thu 29/1008:40 -

1 stop12h 05m

Thu 5/1111:10 -

2 stops16h 00m

Deal found 25/8£655

Thu 29/1017:20 -

1 stop27h 35m

Thu 5/1117:45 -

1 stop18h 05m

Deal found 24/8£656

Thu 29/1008:40 -

2 stops18h 18m

Thu 5/1106:00 -

2 stops21h 10m

Deal found 25/8£659

Fri 9/1009:05 -

2 stops17h 55m

Fri 16/1011:05 -

2 stops16h 40m

Deal found 25/8£659

Wed 7/1009:15 -

2 stops17h 34m

Wed 14/1015:15 -

2 stops20h 35m

Deal found 23/8£659

Fri 9/1009:05 -

2 stops19h 21m

Fri 16/1012:30 -

2 stops15h 15m

Deal found 25/8£665

Fri 9/1009:05 -

2 stops18h 50m

Fri 16/1013:20 -

2 stops14h 25m

Deal found 25/8£666

Sat 10/1009:20 -

2 stops17h 25m

Sat 17/1017:00 -

2 stops18h 50m

Deal found 26/8£676

Sat 5/917:20 -

1 stop27h 15m

Mon 14/908:08 -

2 stops19h 27m

Deal found 21/8£685

Wed 16/1217:30 -

1 stop27h 15m

Wed 6/107:00 -

2 stops20h 10m

Deal found 21/8£705

Best flights from Southampton to Washington, D.C.
Discover carefully curated flight deals from Southampton to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Mon 5/1009:05 -

1 stop11h 30m

Mon 12/1018:32 -

2 stops17h 18m

Deal found 21/8£655

Thu 29/1017:20 -

1 stop27h 35m

Thu 5/1117:45 -

1 stop18h 05m

Deal found 22/8£656

Fri 9/1020:00 -

2 stops28h 40m

Fri 16/1021:30 -

2 stops17h 00m

Deal found 25/8£745

Thu 28/119:55 -

2 stops50h 10m

Mon 1/218:55 -

2 stops56h 30m

Deal found 25/8£828

Thu 29/1008:40 -

1 stop12h 05m

Thu 5/1111:10 -

2 stops16h 00m

Deal found 22/8£656

Fri 9/1009:05 -

1 stop11h 30m

Fri 16/1012:30 -

2 stops15h 15m

Deal found 25/8£659

Thu 29/1008:40 -

2 stops18h 18m

Thu 5/1106:00 -

2 stops21h 10m

Deal found 26/8£659

Fri 9/1009:05 -

2 stops18h 50m

Fri 16/1013:20 -

2 stops14h 25m

Deal found 25/8£666

Fri 9/1009:05 -

2 stops18h 53m

Fri 16/1018:32 -

2 stops17h 18m

Deal found 25/8£659

Fri 9/1009:05 -

2 stops17h 55m

Fri 16/1011:05 -

2 stops16h 40m

Deal found 25/8£659

Fri 9/1009:25 -

3 stops28h 30m

Fri 16/1018:55 -

2 stops17h 45m

Deal found 25/8£911

Thu 8/1009:05 -

2 stops19h 39m

Thu 15/1006:03 -

2 stops21h 32m

Deal found 24/8£659

Wed 7/1009:15 -

2 stops18h 49m

Wed 14/1016:45 -

2 stops19h 05m

Deal found 23/8£659

Wed 7/1009:15 -

2 stops17h 34m

Wed 14/1015:15 -

2 stops20h 35m

Deal found 23/8£659

Sat 10/1009:20 -

2 stops17h 25m

Sat 17/1017:00 -

2 stops18h 50m

Deal found 26/8£676

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

Round-trip from	£638
One-way from	£420
Popular in	June
Cheapest in	February
Average price	£523

KLM
9/10-16/10
2 total stops
21h 45m total
Southampton to Washington, D.C.

Search Deals

12/10
3 total stops
31h 15m total
Southampton to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£39 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Mon 5/10

09:05-15:35

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 12/10

18:32-16:50

2 stops17h 18m

£655

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Thu 29/10

17:20-16:55

1 stop27h 35m

Washington, D.C. Dulles Intl

Thu 5/11

17:45-16:50

1 stop18h 05m

£656

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Thu 29/10

08:40-16:45

1 stop12h 05m

Washington, D.C. Dulles Intl

Thu 5/11

11:10-08:10

2 stops16h 00m

£656

Fastest return journey

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Fri 9/10

09:05-15:35

1 stop11h 30m

Washington, D.C. Dulles Intl

Fri 16/10

12:30-08:45

2 stops15h 15m

£659

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Thu 29/10

08:40-22:58

2 stops18h 18m

Baltimore/Washington

Thu 5/11

06:00-08:10

2 stops21h 10m

£659

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Fri 9/10

09:05-22:58

2 stops18h 53m

Baltimore/Washington

Fri 16/10

18:32-16:50

2 stops17h 18m

£659

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Fri 9/10

09:05-22:00

2 stops17h 55m

Washington, D.C. Reagan-National

Fri 16/10

11:05-08:45

2 stops16h 40m

£659

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Thu 8/10

09:05-23:44

2 stops19h 39m

Baltimore/Washington

Thu 15/10

06:03-08:35

2 stops21h 32m

£659

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Wed 7/10

09:15-23:04

2 stops18h 49m

Baltimore/Washington

Wed 14/10

16:45-16:50

2 stops19h 05m

£659

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - DCA Washington, D.C. Reagan-National

SOUDCA

Southampton Eastleigh

Wed 7/10

09:15-21:49

2 stops17h 34m

Washington, D.C. Reagan-National

Wed 14/10

15:15-16:50

2 stops20h 35m

£659

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 29 resultsSorted by cheapest first

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.

SOU-WAS

SOU-BWI

SOU-IAD

SOU-DCA

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.

SOU-WAS

SOU-BWI

SOU-IAD

SOU-DCA

No data available for this route at this time. Please check back soon.

Related info for your journey

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.
How long is the flight from Southampton to Washington, D.C.?
For as low as £655, Delta can have you in Washington, D.C. from Southampton in 11h 30m. 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 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.

See more FAQs

Silver Spring

Alexandria

Gaithersburg

Oxon Hill

Hanover

Woodbridge

Glen Burnie

Springfield

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Other flights from Southampton

Popular flights

Top destinations

Washington, D.C. flight routes

Alternative routes for Southampton to Washington, D.C.

Heathrow to Dulles Intl flights

Gatwick to Dulles Intl flights

Heathrow to Reagan-National flights

Stansted to Dulles Intl flights

London City to Dulles Intl flights

Gatwick to Reagan-National flights

Luton to Dulles Intl flights

Manchester to Dulles Intl flights

Edinburgh to Dulles Intl flights

London City to Reagan-National flights

Edinburgh to Reagan-National flights

Manchester to Reagan-National flights

Birmingham to Dulles Intl flights

Leeds to Dulles Intl flights

Birmingham to Reagan-National flights

Southampton to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Bristol to Dulles Intl flights

Newcastle upon Tyne to Reagan-National flights

Southend to Dulles Intl flights

Bristol to Reagan-National flights

Exeter to Dulles Intl flights

Norwich to Reagan-National flights

Southampton to Reagan-National flights

Grimsby to Reagan-National flights

Doncaster to Dulles Intl flights

Leeds to Reagan-National flights

Norwich to Dulles Intl flights

Grimsby to Dulles Intl flights

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

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£445	Average£568	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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.

Cheap flights from Southampton to Washington, D.C. from £420

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 26 August 2026.

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 26 August 2026.

Best flights from Southampton to Washington, D.C.Discover carefully curated flight deals from Southampton to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Discover carefully curated flight deals from Southampton to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Last-minute flights from Southampton to Washington, D.C.Discover last-minute flight deals from Southampton to Washington, D.C.. Data last updated 26 August 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Washington, D.C.. Data last updated 26 August 2026 and is based on user searches.

One-way flights from Southampton to Washington, D.C.Search for one-way flight options from Southampton to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 26 August 2026.

Search for one-way flight options from Southampton to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 26 August 2026.

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Washington, D.C. that are best for you.

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.

Cheapflights Insights

Related info for your journey

What airport do you fly from for flights from Southampton to Washington, D.C.?

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

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?

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

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

Travelling to a place near Washington, D.C.?

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.

Alternative routes for Southampton to Washington, D.C.

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

Complete your trip

Complete your trip to Washington, D.C. by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

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.

Southampton and Washington, D.C. flights

Browse other Southampton and Washington, D.C. flight options. Last updated on 26 August 2026.

Other flights from Southampton

Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 26 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Southampton to Washington, D.C. flights

Consider these flights travelling from Southampton to Washington, D.C..

Other flights to Washington, D.C.

Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 August 2026.

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

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 26 August 2026.

Best flights from Southampton to Washington, D.C.
Discover carefully curated flight deals from Southampton to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Last-minute flights from Southampton to Washington, D.C.
Discover last-minute flight deals from Southampton to Washington, D.C.. Data last updated 26 August 2026 and is based on user searches.

One-way flights from Southampton to Washington, D.C.
Search for one-way flight options from Southampton to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 26 August 2026.