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

For as low as £757, Delta can have you in Washington, D.C. from Southampton in 15h. 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 - Baltimore/Washington. You may also consider Southampton Eastleigh - Washington, D.C. Dulles Intl 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.

£469+ 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.

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Best

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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 23 October 2026.

Thu 3/1209:20 -

1 stop15h 00m

Thu 10/1220:50 -

1 stop17h 40m

Deal found 19/10£573

Fri 4/1208:40 -

1 stop12h 15m

Fri 11/1218:15 -

1 stop9h 40m

Deal found 20/10£642

Thu 3/1208:40 -

1 stop12h 05m

Thu 10/1206:00 -

2 stops21h 10m

Deal found 19/10£643

Fri 4/1208:40 -

2 stops19h 43m

Fri 11/1218:15 -

1 stop17h 35m

Deal found 20/10£646

Thu 3/1208:40 -

2 stops14h 18m

Thu 10/1212:18 -

2 stops14h 52m

Deal found 19/10£647

Sat 7/1109:25 -

1 stop11h 30m

Wed 11/1118:15 -

1 stop17h 50m

Deal found 22/10£693

Thu 19/1108:40 -

1 stop12h 15m

Thu 26/1106:00 -

2 stops21h 10m

Deal found 22/10£694

Thu 19/1120:00 -

2 stops29h 30m

Thu 26/1117:25 -

2 stops15h 55m

Deal found 22/10£695

Sat 7/1109:25 -

2 stops17h 10m

Wed 11/1110:25 -

2 stops16h 45m

Deal found 22/10£698

Sat 7/1109:25 -

2 stops18h 51m

Wed 11/1112:35 -

2 stops14h 35m

Deal found 22/10£698

Thu 29/1020:00 -

1 stop24h 45m

Thu 5/1120:50 -

1 stop10h 05m

Deal found 19/10£712

Fri 4/1208:40 -

2 stops14h 18m

Fri 11/1218:32 -

2 stops33h 23m

Deal found 20/10£746

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 23 October 2026.

Fri 4/1208:40 -

2 stops19h 43m

Fri 11/1218:15 -

1 stop17h 35m

Deal found 20/10£646

Sat 7/1109:25 -

1 stop11h 30m

Wed 11/1118:15 -

1 stop17h 50m

Deal found 22/10£693

Fri 4/1208:40 -

2 stops14h 18m

Fri 11/1218:32 -

2 stops33h 23m

Deal found 20/10£746

Sat 19/1209:20 -

1 stop15h 00m

Sat 2/120:50 -

1 stop30h 55m

Deal found 20/10£757

Thu 12/1109:20 -

1 stop15h 00m

Sun 15/1121:45 -

2 stops29h 35m

Deal found 18/10£790

Thu 3/1208:40 -

2 stops14h 18m

Thu 10/1212:18 -

2 stops14h 52m

Deal found 19/10£647

Sat 7/1109:25 -

1 stop11h 30m

Wed 11/1106:00 -

2 stops21h 10m

Deal found 22/10£694

Thu 3/1209:20 -

2 stops27h 57m

Thu 10/1206:00 -

3 stops32h 30m

Deal found 19/10£796

Sat 19/1209:20 -

1 stop15h 00m

Thu 31/1217:15 -

1 stop10h 35m

Deal found 21/10£815

Thu 19/1108:40 -

1 stop12h 15m

Thu 26/1118:15 -

1 stop17h 50m

Deal found 22/10£694

Sun 20/1209:20 -

1 stop11h 25m

Wed 30/1220:50 -

1 stop31h 00m

Deal found 21/10£823

Sat 7/1109:25 -

2 stops17h 10m

Wed 11/1110:25 -

2 stops16h 45m

Deal found 22/10£698

Thu 28/119:45 -

2 stops26h 20m

Mon 1/218:55 -

2 stops32h 25m

Deal found 18/10£838

Sun 20/1221:00 -

2 stops49h 05m

Tue 29/1218:55 -

2 stops32h 25m

Deal found 21/10£859

Sun 20/1221:00 -

2 stops49h 05m

Thu 31/1218:55 -

2 stops15h 45m

Deal found 21/10£871

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

Round-trip from	£573
One-way from	£469
Popular in	June
Cheapest in	February
Average price	£503

Aer Lingus
3/12-10/12
2 total stops
32h 40m total
Southampton to Washington, D.C.

Search Deals

Aer Lingus
23/11-31/12
1 total stop
15h 00m total
Southampton to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£38 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 October 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 23/11

09:20-19:20

1 stop15h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£469

Fastest return journey

SouthamptonWashington, D.C.

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

SOUIAD

Southampton Eastleigh

Tue 13/4

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£494

SouthamptonWashington, D.C.

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

SOUIAD

Southampton Eastleigh

Fri 11/12

12:25-19:20

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£503

SouthamptonWashington, D.C.

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

SOUIAD

Southampton Eastleigh

Sun 4/4

09:20-19:15

1 stop14h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£515

SouthamptonWashington, D.C.

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

SOUIAD

Southampton Eastleigh

Sun 27/12

09:20-19:20

1 stop15h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£516

SouthamptonWashington, D.C.

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

SOUIAD

Southampton Eastleigh

Sun 13/12

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£523

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Sun 27/12

21:00-17:05

2 stops25h 05m

Baltimore/Washington

Wed 31/12

00:00-06:00

Nonstop0h 00m

£547

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Fri 11/12

19:45-17:05

2 stops26h 20m

Baltimore/Washington

Wed 31/12

00:00-06:00

Nonstop0h 00m

£554

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Sun 13/12

21:00-17:05

2 stops25h 05m

Baltimore/Washington

Wed 31/12

00:00-06:00

Nonstop0h 00m

£554

SouthamptonBaltimore

SOU Southampton Eastleigh - BWI Baltimore/Washington

SOUBWI

Southampton Eastleigh

Sun 4/4

21:00-16:45

2 stops24h 45m

Baltimore/Washington

Wed 31/12

00:00-06:00

Nonstop0h 00m

£554

Flights are sorted by cheapest return flights first.

Deals found on 19/10

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-IAD

SOU-BWI

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-IAD

SOU-BWI

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 £757, Delta can have you in Washington, D.C. from Southampton in 15h. 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 - Baltimore/Washington. You may also consider Southampton Eastleigh - Washington, D.C. Dulles Intl 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

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Woodbridge

Glen Burnie

Springfield

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Washington, D.C. flight routes

Alternative routes for Southampton to Washington, D.C.

Heathrow to Dulles Intl flights

Gatwick to Dulles Intl flights

Stansted to Dulles Intl flights

London City to Dulles Intl flights

Heathrow to Reagan-National flights

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Gatwick to Reagan-National flights

Manchester to Dulles Intl flights

Edinburgh to Dulles Intl flights

London City to Reagan-National flights

Southend to Dulles Intl flights

Edinburgh to Reagan-National flights

Manchester to Reagan-National flights

Birmingham to Dulles Intl flights

Southampton to Dulles Intl flights

Birmingham to Reagan-National flights

Leeds to Dulles Intl flights

Newcastle upon Tyne to Reagan-National flights

Bristol to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Southampton to Reagan-National flights

Leeds to Reagan-National flights

Bristol to Reagan-National flights

Grimsby to Dulles Intl flights

Exeter to Dulles Intl flights

Grimsby to Reagan-National flights

Norwich to Reagan-National flights

Norwich to Dulles Intl flights

Doncaster to Dulles Intl flights

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

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£453	Average£593	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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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?

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Cheap flights from Southampton to Washington, D.C. from £469

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/11. 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 23 October 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 23 October 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 23 October 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 23 October 2026.

Last-minute flights from Southampton to Washington, D.C.Discover last-minute flight deals from Southampton to Washington, D.C.. Data last updated 23 October 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Washington, D.C.. Data last updated 23 October 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 23 October 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 23 October 2026.

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

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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.?

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Alternative routes for Southampton to Washington, D.C.

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Complete your trip

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Direct flights to United States

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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 23 October 2026.

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Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 23 October 2026.

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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 23 October 2026.

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

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

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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 23 October 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 23 October 2026.

Last-minute flights from Southampton to Washington, D.C.
Discover last-minute flight deals from Southampton to Washington, D.C.. Data last updated 23 October 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 23 October 2026.