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

Currently priced at $890, KLM will fly you from Washington, D.C. Dulles Intl Airport to Southampton and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Aer Lingus - these airlines can fly you to your destination from $903 and $966, respectively. KLM is priced at 1% lower than the current average price of a flight leaving 3 months from now.

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

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Southampton flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Southampton?

Consider British Airways, Delta or Aer Lingus when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Southampton.

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

Users have found that flying from Washington, D.C. Dulles Intl Airport to Southampton on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Users have found that booking a flight from Washington, D.C. Dulles Intl Airport to Southampton at least 39 days early can save you up to 15% on average compared to booking a flight this week. If booking 39 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Dulles Intl Airport to Southampton for as little as $774 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $787 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Southampton. Flights to Southampton from Washington, D.C. Dulles Intl Airport in January are about $747 on average during January, but can be found for as low as $376.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Southampton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Southampton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Southampton flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Southampton flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Southampton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

For a flight from Washington, D.C. Dulles Intl to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 3 airlines have flights to Southampton Eastleigh from Washington, D.C. Dulles Intl on a regular basis.

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 vacation 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.

$689+ Flights from Washington, D.C. Dulles Intl Airport to Southampton

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dulles Intl to Southampton with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Southampton

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$890 (KLM)
One-way from	$689 (Gurufare)
Popular in	July
Cheapest in	November
Average price	$1,025

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Southampton Eastleigh flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Southampton Eastleigh flights.

Search Deals

From Washington, D.C. Dulles Intl to Southampton Eastleigh

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Southampton Eastleigh

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($173 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2025

Search Deals

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 January 22, 2025.

Wed 3/55:10 pmIAD - SOU

2 stops21h 30mMultiple Airlines

Wed 3/129:30 amSOU - IAD

2 stops35h 10mMultiple Airlines

Deal found 1/21

$727

Wed 3/55:35 pmIAD - SOU

1 stop18h 15mKLM

Wed 3/125:20 pmSOU - IAD

1 stop27h 25mKLM

Deal found 1/21

$749

Wed 9/36:40 pmIAD - SOU

2 stops17h 20mVirgin Atlantic

Fri 9/129:20 amSOU - IAD

1 stop11h 15mVirgin Atlantic

Deal found 1/21

$844

Wed 5/145:25 pmIAD - SOU

1 stop10h 20mDelta

Sat 5/249:20 amSOU - IAD

2 stops19h 08mDelta

Deal found 1/21

$903

Wed 2/266:00 pmIAD - SOU

2 stops20h 40mAer Lingus

Sun 3/98:10 pmSOU - IAD

2 stops28h 35mAer Lingus

Deal found 1/21

$966

Wed 1/299:55 pmIAD - SOU

2 stops13h 05mBritish Airways

Wed 2/199:30 amSOU - IAD

1 stop11h 10mBritish Airways

Deal found 1/22

$2,097

Best flights from Dulles Intl to Southampton
Discover carefully curated flight deals from Dulles Intl to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 22, 2025.

Wed 5/145:25 pmIAD - SOU

1 stop10h 20mKLM

Sat 5/245:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 1/21

$890

Wed 5/145:25 pmIAD - SOU

1 stop10h 20mDelta

Sat 5/249:20 amSOU - IAD

2 stops19h 08mDelta

Deal found 1/21

$903

Sat 3/299:45 pmIAD - SOU

1 stop30h 55mAer Lingus

Sat 4/129:40 amSOU - IAD

2 stops15h 35mAer Lingus

Deal found 1/22

$966

Sat 3/85:50 pmIAD - SOU

2 stops18h 45mMultiple Airlines

Sat 3/159:40 amSOU - IAD

2 stops35h 10mMultiple Airlines

Deal found 1/22

$1,008

Fri 4/45:50 pmIAD - SOU

2 stops14h 30mBritish Airways

Fri 4/119:40 amSOU - IAD

1 stop11h 10mBritish Airways

Deal found 1/22

$2,152

Last-minute flights from Dulles Intl to Southampton
Discover last-minute flight deals from Dulles Intl to Southampton. Data last updated January 22, 2025 and is based on user searches.

Wed 1/299:55 pmIAD - SOU

2 stops13h 05mBritish Airways

Wed 2/199:30 amSOU - IAD

1 stop11h 10mBritish Airways

Deal found 1/22

$2,097

One-way flights from Dulles Intl to Southampton
Search for one-way flight options from Dulles Intl to Southampton. Find affordable one-way fares based on user searches. Data last updated January 22, 2025.

Wed 7/29:00 pmIAD - SOU

1 stop17h 30mAer Lingus

Deal found 1/22

$689

Find flights from Dulles Intl to Southampton within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 5/14

5:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Sat 5/24

5:35 pm-3:35 pm

1 stop27h 00m

$890

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 5/14

5:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Sat 5/24

9:20 am-11:28 pm

2 stops19h 08m

$903

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 3/29

9:45 pm-9:40 am

1 stop30h 55m

Southampton Eastleigh

Sat 4/12

9:40 am-8:15 pm

2 stops15h 35m

$966

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 3/8

5:50 pm-5:35 pm

2 stops18h 45m

Southampton Eastleigh

Sat 3/15

9:40 am-4:50 pm

2 stops35h 10m

$1,008

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 4/4

5:50 pm-1:20 pm

2 stops14h 30m

Southampton Eastleigh

Fri 4/11

9:40 am-3:50 pm

1 stop11h 10m

$2,152

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 7/2

9:00 pm-7:30 pm

1 stop17h 30m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Southampton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Southampton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Southampton flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Southampton flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Southampton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southampton (average of $787). Flying from Washington, D.C. Dulles Intl Airport to Southampton in June is currently the most expensive (average of $1,308). 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 is the cheapest time of day to fly from IAD to SOU?

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Southampton at noon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the morning.

Rainfall in Southampton by month

In terms of precipitation, rainfall in Southampton ranges from 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Southampton when rainfall is around 1.0 in.

Temperature in Southampton 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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Southampton

Delta

8.0

Very good

8,512 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,512 reviews

Delta

8.0

Very good

8,512 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,339 reviews

Delta

8.0

Very good

8,512 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus

7.1

Good

1,082 reviews

Delta

8.0

Very good

8,512 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

British Airways

6.6

Okay

6,831 reviews

Delta

8.0

Very good

8,512 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to Southampton from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 3 airlines have flights to Southampton Eastleigh from Washington, D.C. Dulles Intl on a regular basis.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Southampton round-trip?
Currently priced at $890, KLM will fly you from Washington, D.C. Dulles Intl Airport to Southampton and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Aer Lingus - these airlines can fly you to your destination from $903 and $966, respectively. KLM is priced at 1% 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 vacation 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southampton (average of $787). Flying from Washington, D.C. Dulles Intl Airport to Southampton in June is currently the most expensive (average of $1,308). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Southampton

Dulles Intl to Heathrow flights

Baltimore to Heathrow flights

Reagan-National to Heathrow flights

Dulles Intl to Gatwick 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

Baltimore to Luton flights

Dulles Intl to Luton flights

Reagan-National to London City flights

Baltimore to Edinburgh flights

Dulles Intl to Stansted flights

Reagan-National to Edinburgh flights

Dulles Intl to Manchester flights

Baltimore to Manchester flights

Reagan-National to Manchester flights

Baltimore to London City flights

Dulles Intl to Birmingham flights

Reagan-National to Birmingham flights

Dulles Intl to Newcastle upon Tyne flights

Baltimore to Newcastle upon Tyne flights

Reagan-National to Newcastle upon Tyne flights

Dulles Intl to Liverpool flights

Baltimore to Birmingham flights

Dulles Intl to Leeds flights

Reagan-National to Stansted flights

Baltimore to Southampton flights

Baltimore to Liverpool flights

Baltimore to Leeds flights

Reagan-National to Luton flights

Reagan-National to Leeds flights

Reagan-National to Liverpool flights

Baltimore to Bristol flights

Dulles Intl to Bristol flights

Baltimore to Newquay flights

Dulles Intl to Newquay flights

Reagan-National to Bristol flights

Reagan-National to Newquay flights

Reagan-National to Southampton flights

Baltimore to Exeter flights

Dulles Intl to Exeter flights

Baltimore to Southend flights

Dulles Intl to Southend flights

Dulles Intl to East Midlands flights

Dulles Intl to Bournemouth flights

Complete your trip

Southampton car rentals

London Heathrow Airport car rentals

London Gatwick Airport car rentals

London Stansted Airport car rentals

London Luton Airport car rentals

London City Airport car rentals

Bournemouth Airport car rentals

London Southend Airport car rentals

London car rentals

Manchester car rentals

Portsmouth car rentals

Newcastle upon Tyne car rentals

Top 3 airlines flying from Dulles Intl to Southampton

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest$646	Average$816	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$729	Average$1,068	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$834	Average$1,096	FlexibilityNo cancel fee	On-time70%

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.

$689+ Cheap flights from Dulles Intl (IAD) to Southampton (SOU)

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Southampton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Southampton

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Southampton

Cheapest flights from Dulles Intl to SouthamptonExplore 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 January 22, 2025.

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 January 22, 2025.

Find flights from Dulles Intl to Southampton within your budget

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.

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?

What is the cheapest time of day to fly from IAD to SOU?

Find hourly flight availability from Dulles Intl to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 22, 2025.

Rainfall in Southampton by month

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

Temperature in Southampton by month

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

Reviews of airlines servicing Southampton

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?

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

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

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

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

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

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 Dulles Intl to Southampton

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

Top 3 airlines flying from Dulles Intl to Southampton

100% Free

Book with Flexibility

Travel Smart

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 January 22, 2025.