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Cheap flights from Southampton to Washington, D.C. Dulles Intl Airport from £738

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. 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 — IAD
24 Apr — 1 May1
1 adult
Wed 24/4
Wed 1/5

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

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C. Dulles Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

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

To save up to 31% on this flight, we recommend booking at least 57 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Southampton to Washington, D.C. Dulles Intl Airport from £553 1-2 weeks out and tickets from £612 for flights departing within the next 72 hours.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Southampton in September are about £531 on average during September, but can be found for as low as £282.

When is the cheapest time to fly from Southampton to Washington, D.C. Dulles Intl Airport (SOU - IAD)?

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. Dulles Intl Airport as you normally would.

Cheap KLM flights from Southampton to Dulles Intl

Explore cheap flight options specifically provided by KLM for the route between Southampton and Dulles Intl. 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 899,432 searches. Data last updated 19 April 2024.
Peruse some of the lowest-priced KLM flights we've found from Southampton to Washington, D.C.. Deals update often to give you more flight options matching your criteria
Fri 3/517:20SOU - IAD
1 stop27h 40mKLM
Tue 7/513:24IAD - SOU
2 stops13h 01mKLM
Deal found 18/4£738
Fri 3/517:20SOU - IAD
1 stop27h 40mKLM
Tue 7/517:50IAD - SOU
1 stop32h 35mKLM
Deal found 18/4£740
Fri 3/507:55SOU - IAD
1 stop12h 40mKLM
Tue 7/513:24IAD - SOU
2 stops13h 01mKLM
Deal found 17/4£776
Tue 4/607:55SOU - IAD
2 stops17h 38mKLM
Thu 13/617:25IAD - SOU
1 stop20h 45mKLM
Deal found 18/4£817
Tue 4/607:55SOU - IAD
1 stop13h 05mKLM
Thu 13/617:25IAD - SOU
1 stop20h 45mKLM
Deal found 18/4£819
Tue 4/607:55SOU - IAD
2 stops14h 25mKLM
Thu 13/613:09IAD - SOU
2 stops13h 16mKLM
Deal found 18/4£827

Cheap British Airways flights from Southampton to Dulles Intl

Explore cheap flight options specifically provided by British Airways for the route between Southampton and Dulles Intl. 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 899,432 searches. Data last updated 19 April 2024.
Some of the lowest-priced British Airways flights we've found at this time heading from Southampton to Washington, D.C.. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Thu 2/509:40SOU - IAD
1 stop11h 00mBritish Airways
Thu 9/522:45IAD - SOU
2 stops15h 25mBritish Airways
Deal found 18/4£1,014
Thu 2/508:40SOU - IAD
2 stops16h 50mBritish Airways
Thu 9/522:45IAD - SOU
2 stops15h 25mBritish Airways
Deal found 18/4£1,030
Thu 30/509:40SOU - IAD
1 stop11h 00mBritish Airways
Wed 12/622:45IAD - SOU
2 stops15h 25mBritish Airways
Deal found 18/4£1,075
Thu 2/509:40SOU - IAD
1 stop11h 00mBritish Airways
Thu 9/517:10IAD - SOU
1 stop11h 00mBritish Airways
Deal found 18/4£1,129
Sat 20/710:00SOU - IAD
2 stops15h 30mBritish Airways
Sun 21/720:40IAD - SOU
1 stop17h 50mBritish Airways
Deal found 19/4£1,188
Wed 1/509:40SOU - IAD
1 stop11h 00mBritish Airways
Fri 31/517:55IAD - SOU
2 stops14h 30mBritish Airways
Deal found 18/4£1,232
Sat 20/709:40SOU - IAD
1 stop11h 00mBritish Airways
Sun 21/717:10IAD - SOU
1 stop11h 00mBritish Airways
Deal found 19/4£1,272
Wed 1/508:40SOU - IAD
2 stops16h 50mBritish Airways
Fri 31/517:55IAD - SOU
2 stops14h 30mBritish Airways
Deal found 18/4£1,611
Fri 19/709:40SOU - IAD
1 stop14h 30mBritish Airways
Sat 20/713:11IAD - SOU
2 stops14h 59mBritish Airways
Deal found 18/4£2,641

Cheap Southampton to Dulles Intl flights in April & May 2024

Find cheap flight options from Southampton to Dulles Intl specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 899,432 searches. Prices were last updated on 19 April 2024.
Check out some of the best flight deals from Southampton to Washington, D.C. in 2024. Check back soon for alternative fares.
Fri 3/517:20SOU - IAD
1 stop27h 40mKLM
Tue 7/513:24IAD - SOU
2 stops13h 01mKLM
Deal found 18/4£738
Fri 3/517:20SOU - IAD
1 stop27h 40mKLM
Tue 7/517:50IAD - SOU
1 stop32h 35mKLM
Deal found 18/4£740
Fri 3/519:40SOU - IAD
1 stop25h 20mVirgin Atlantic
Tue 7/517:50IAD - SOU
1 stop20h 20mVirgin Atlantic
Deal found 17/4£763
Fri 3/507:55SOU - IAD
1 stop12h 40mKLM
Tue 7/513:24IAD - SOU
2 stops13h 01mKLM
Deal found 17/4£776
Fri 3/519:40SOU - IAD
2 stops33h 19mDelta
Tue 7/517:20IAD - SOU
2 stops33h 05mDelta
Deal found 17/4£779
Fri 3/519:40SOU - IAD
3 stops28h 45mMultiple Airlines
Tue 7/520:45IAD - SOU
3 stops31h 25mMultiple Airlines
Deal found 17/4£828
Fri 3/515:10SOU - IAD
3 stops33h 15mMultiple Airlines
Tue 7/520:45IAD - SOU
3 stops31h 25mMultiple Airlines
Deal found 18/4£942
Fri 3/519:40SOU - IAD
3 stops27h 00mMultiple Airlines
Tue 7/520:30IAD - SOU
2 stops13h 55mMultiple Airlines
Deal found 18/4£1,010
Thu 2/509:40SOU - IAD
1 stop11h 00mBritish Airways
Thu 9/522:45IAD - SOU
2 stops15h 25mBritish Airways
Deal found 18/4£1,014

Southampton to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between Southampton and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 899,432 searches. Data last updated 19 April 2024.
Check out some of the best flight deals from Southampton to Washington, D.C. in 2024. Check back soon for alternative fares.
Fri 3/517:20SOU - IAD
1 stop27h 40mKLM
Tue 7/513:24IAD - SOU
2 stops13h 01mKLM
Deal found 18/4£738
Fri 3/517:20SOU - IAD
1 stop27h 40mKLM
Tue 7/517:50IAD - SOU
1 stop32h 35mKLM
Deal found 18/4£740
Fri 3/519:40SOU - IAD
1 stop25h 20mVirgin Atlantic
Tue 7/517:50IAD - SOU
1 stop20h 20mVirgin Atlantic
Deal found 17/4£763
Fri 3/507:55SOU - IAD
1 stop12h 40mKLM
Tue 7/513:24IAD - SOU
2 stops13h 01mKLM
Deal found 17/4£776
Fri 3/519:40SOU - IAD
2 stops33h 19mDelta
Tue 7/517:20IAD - SOU
2 stops33h 05mDelta
Deal found 17/4£779
Tue 4/607:55SOU - IAD
2 stops17h 38mKLM
Thu 13/617:25IAD - SOU
1 stop20h 45mKLM
Deal found 18/4£817
Tue 4/607:55SOU - IAD
1 stop13h 05mKLM
Thu 13/617:25IAD - SOU
1 stop20h 45mKLM
Deal found 18/4£819
Tue 4/607:55SOU - IAD
2 stops14h 25mKLM
Thu 13/613:09IAD - SOU
2 stops13h 16mKLM
Deal found 18/4£827
Fri 3/519:40SOU - IAD
3 stops28h 45mMultiple Airlines
Tue 7/520:45IAD - SOU
3 stops31h 25mMultiple Airlines
Deal found 17/4£828

One-way flights to Dulles Intl from Southampton

Search for one-way flight options from Southampton to Dulles Intl. 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 899,432 searches. Data last updated 19 April 2024.
If you're seeking multiple options on one-way flights from Southampton to Washington, D.C., be sure to check out these deals, which are updated often. Those seeking round-trip flights from Southampton to Washington, D.C. should utilise the search form at the top of the page.
Sat 29/608:30SOU - IAD
1 stop12h 05mDelta
Deal found 18/4£1,324
Sat 29/610:00SOU - IAD
2 stops15h 30mBritish Airways
Deal found 18/4£1,353

Find flights from Southampton to Dulles Intl within your budget

Customise your flight search to find flights from Southampton to Dulles Intl 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 899,432 searches. Data last updated 19 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£738 - £1,014

Route

Depart

Return

Price

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

1 stop27h 40m

Washington, D.C. Dulles Intl

Tue 7/5

2 stops13h 01m

£738

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

1 stop27h 40m

Washington, D.C. Dulles Intl

Tue 7/5

1 stop32h 35m

£740

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

1 stop25h 20m

Washington, D.C. Dulles Intl

Tue 7/5

1 stop20h 20m

£763

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

1 stop12h 40m

Washington, D.C. Dulles Intl

Tue 7/5

2 stops13h 01m

£776

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

2 stops33h 19m

Washington, D.C. Dulles Intl

Tue 7/5

2 stops33h 05m

£779

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Tue 4/6

2 stops17h 38m

Washington, D.C. Dulles Intl

Thu 13/6

1 stop20h 45m

£817

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

3 stops28h 45m

Washington, D.C. Dulles Intl

Tue 7/5

3 stops31h 25m

£828

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Fri 3/5

3 stops33h 15m

Washington, D.C. Dulles Intl

Tue 7/5

3 stops31h 25m

£942

Southampton EastleighWashington, D.C. Dulles Intl

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 2/5

1 stop11h 00m

Washington, D.C. Dulles Intl

Thu 9/5

2 stops15h 25m

£1,014

Flights are sorted by cheapest first

Deals found on 18/4

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

Use this chart to determine the cheapest time to fly return from Southampton to Dulles Intl. Price data was last updated on 14 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Southampton to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 19 April 2024.
To help decide which airline to fly from Southampton to Washington, D.C., see what other customers have to say about KLM and British Airways. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very Good
11,094 reviews
Check prices

Food

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very Good
11,094 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Food

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

KLM
7.9
Good
1,641 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Food

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Virgin Atlantic
7.7
Good
750 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Food

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

British Airways
6.9
Okay
6,935 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Food

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Dulles Intl. 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. Dulles Intl?

    Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Washington, D.C. Dulles Intl. On average, Eastleigh has 0 outbound flights to Washington, D.C. Dulles Intl per day from 1 airline. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

  • Can I find flights from Southampton to Washington, D.C. Dulles Intl Airport for under £800 on Cheapflights?

    Yes, there are multiple flights from Southampton to Washington, D.C. Dulles Intl Airport for under £800. The cheapest flight booked recently is on KLM for just £738, but on average you can expect to pay £980.

  • What does SOU to IAD mean?

    Southampton Eastleigh Airport is SOU and Washington, D.C. Dulles Intl Airport is IAD. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Southampton to Dulles Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Southampton to Dulles Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Southampton to Dulles Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Southampton to Dulles Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Southampton to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Southampton to Dulles Intl that allow pets onboard?

    Many airlines flying from Southampton to Dulles Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Southampton to Dulles Intl?

    Yes, you can often find last-minute deals on Southampton to Dulles Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Southampton to Washington, D.C. Dulles Intl Airport flight deals updated?

    The Southampton to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 18/4.

See more FAQs

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Alternative routes for Southampton to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Southampton to Dulles Intl

Discover the top airline that operate flights from Southampton to Dulles Intl. 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 899,432 searches. Data last updated 19 April 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£553Average£718FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
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Search flights from Southampton to Dulles Intl by cabin class

Find flights from Southampton to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

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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 Dulles Intl?

Cheapflights makes it easy to find Southampton to Dulles Intl 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 Southampton to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Southampton to Dulles Intl.

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

Need flexible booking options for your flight to Dulles Intl from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Southampton to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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