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Cheap flights from Washington, D.C. Dulles Intl Airport to Southampton from £540

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOU
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Dulles Intl to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Southampton (SOU). 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 17 January 2025.

Round-trip from

£540

Popular in

July

Cheapest in

November

Average price

£839
Aer Lingus
  • Aer Lingus
  • 2/3-9/3
  • 2 total stops
  • 25h 20m total
  • Washington, D.C. to Southampton
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Dulles Intl to Southampton

Cheapest flights from Dulles Intl to Southampton
Explore the most affordable flight options available from Dulles Intl to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Sun 2/317:10IAD - SOU
1 stop10h 35mAer Lingus
Sun 9/309:30SOU - IAD
1 stop14h 45mAer Lingus
Deal found 16/1£540
Sun 2/319:40IAD - SOU
3 stops31h 45mMultiple Airlines
Sun 9/317:20SOU - IAD
3 stops30h 05mMultiple Airlines
Deal found 16/1£563
Wed 5/217:35IAD - SOU
1 stop9h 50mKLM
Tue 11/209:00SOU - IAD
1 stop11h 45mKLM
Deal found 16/1£613
Sun 2/317:35IAD - SOU
1 stop9h 50mVirgin Atlantic
Sun 9/317:20SOU - IAD
2 stops33h 40mVirgin Atlantic
Deal found 16/1£619
Fri 3/1019:05IAD - SOU
2 stops16h 55mDelta
Fri 17/1009:20SOU - IAD
2 stops19h 09mDelta
Deal found 16/1£823
Wed 19/319:00IAD - SOU
2 stops13h 00mBritish Airways
Tue 25/309:30SOU - IAD
1 stop11h 10mBritish Airways
Deal found 15/1£1,715

Find flights from Dulles Intl to Southampton within your budget

Customise your flight search to find flights from Dulles Intl to Southampton 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/3

17:10-08:45

1 stop10h 35m

Southampton Eastleigh

Sun 9/3

09:30-20:15

1 stop14h 45m

£540

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/3

19:40-08:25

3 stops31h 45m

Southampton Eastleigh

Sun 9/3

17:20-19:25

3 stops30h 05m

£563

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 5/2

17:35-08:25

1 stop9h 50m

Southampton Eastleigh

Tue 11/2

09:00-15:45

1 stop11h 45m

£613

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/3

17:35-08:25

1 stop9h 50m

Southampton Eastleigh

Sun 9/3

17:20-23:00

2 stops33h 40m

£619

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 19/3

19:00-12:00

2 stops13h 00m

Southampton Eastleigh

Tue 25/3

09:30-16:40

1 stop11h 10m

£1,715

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 2/7

17:20-08:40

1 stop10h 20m

£565

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Best time to book a flight from Dulles Intl to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Dulles Intl 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.

Travel insights for flights from Dulles Intl to Southampton

Get recent, data-driven insights about flights from Dulles Intl to Southampton including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southampton (average of £203). Flying from Washington, D.C. Dulles Intl Airport to Southampton in November is currently the most expensive (average of £262). 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 Southampton by month

Plan your trip to Southampton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

Temperature in Southampton by month

Plan your trip to Southampton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southampton, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. 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 Southampton. Reviews last updated 17 January 2025.
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,339 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Virgin Atlantic
7.5
Good
664 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.1
Good
1,077 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,824 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Southampton. 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 into for flights to Southampton from Washington, D.C. Dulles Intl?

    Most people fly into Southampton Eastleigh (SOU) if they book a flight to Southampton from Washington, D.C. Dulles Intl. On average, Eastleigh has 0 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

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

    Aer Lingus, at £540, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Southampton.Alternate airlines flying return to your destination include KLM and Virgin Atlantic. Aer Lingus is priced at 27% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Dulles Intl to Southampton that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Southampton?

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

  • Can I find deals for business class flights from Dulles Intl to Southampton?

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

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southampton (average of £203). Flying from Washington, D.C. Dulles Intl Airport to Southampton in November is currently the most expensive (average of £262). 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

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Alternative routes for Dulles Intl to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
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Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
Baltimore to Stansted flights
Reagan-National to Gatwick flights
Dulles Intl to Edinburgh flights
Dulles Intl to Luton flights
Baltimore to Luton flights
Baltimore to Edinburgh flights
Reagan-National to Edinburgh flights
Dulles Intl to Manchester flights
Baltimore to Manchester flights
Reagan-National to Manchester flights
Dulles Intl to Birmingham flights
Baltimore to London City flights
Baltimore to Birmingham flights
Dulles Intl to Leeds flights
Dulles Intl to Newcastle upon Tyne flights
Reagan-National to Stansted flights
Dulles Intl to Liverpool flights
Baltimore to Newcastle upon Tyne flights
Reagan-National to Luton flights
Baltimore to Leeds flights
Dulles Intl to Bristol flights
Reagan-National to Bristol flights
Baltimore to Southampton flights
Baltimore to Bristol flights
Dulles Intl to Exeter flights
Dulles Intl to East Midlands flights
Dulles Intl to Bournemouth flights
Baltimore to East Midlands flights

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 Dulles Intl to Southampton?

Cheapflights makes it easy to find Dulles Intl to Southampton flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Southampton?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southampton from Dulles Intl.

Can Cheapflights find flights from Dulles Intl to Southampton with no change fees?

Certainly. Search results for flights to Southampton from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to Southampton become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southampton from Dulles Intl today and book when prices fit your budget.

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