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

Currently priced at $770, 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 British Airways - these airlines can fly you to your destination from $942 and $1,968, respectively. KLM is priced at 14% 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 Delta, Aer Lingus or KLM 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 18% 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 $794 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 $809 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 $750 on average during January, but can be found for as low as $385.

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.

$643+ Save on Flights from Washington, D.C. Dulles Intl Airport to Southampton

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Cheap flight deals from Dulles Intl to Southampton

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$770 (KLM)
One-way from	$643 (Cheapflightsfares)
Popular in	July
Cheapest in	November
Average price	$728

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

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

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

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

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Highest demand for flights based on searches. 15% potential increase in price ($164 potential increase over avg. RT price).

Search Deals

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

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Average for round-trip flights in February 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 February 22, 2025.

Sun 9/215:25 pmIAD - SOU

1 stop10h 20mKLM

Tue 9/309:20 amSOU - IAD

1 stop11h 15mKLM

Deal found 2/21

$769

Wed 4/97:35 amIAD - SOU

2 stops20h 10mDelta

Tue 4/225:35 pmSOU - IAD

1 stop27h 00mDelta

Deal found 2/22

$942

Sun 9/2110:40 pmIAD - SOU

2 stops28h 45mAer Lingus

Tue 9/308:55 amSOU - IAD

2 stops16h 15mAer Lingus

Deal found 2/21

$981

Tue 4/88:30 pmIAD - SOU

3 stops18h 00mMultiple Airlines

Tue 4/158:00 pmSOU - IAD

2 stops28h 20mMultiple Airlines

Deal found 2/22

$1,025

Wed 4/95:20 pmIAD - SOU

1 stop10h 20mBritish Airways

Sun 4/208:55 amSOU - IAD

2 stops13h 35mBritish Airways

Deal found 2/22

$1,968

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 February 22, 2025.

Tue 4/85:25 pmIAD - SOU

1 stop10h 20mKLM

Tue 4/155:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 2/22

$770

Wed 4/97:35 amIAD - SOU

2 stops20h 10mDelta

Tue 4/225:35 pmSOU - IAD

1 stop27h 00mDelta

Deal found 2/22

$942

Tue 4/88:30 pmIAD - SOU

3 stops18h 00mMultiple Airlines

Tue 4/158:00 pmSOU - IAD

2 stops28h 20mMultiple Airlines

Deal found 2/22

$1,025

Wed 4/95:20 pmIAD - SOU

1 stop10h 20mBritish Airways

Sun 4/208:55 amSOU - IAD

2 stops13h 35mBritish Airways

Deal found 2/22

$1,968

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

Mon 3/36:00 pmIAD - SOU

2 stops13h 00mBritish Airways

Mon 3/109:25 amSOU - IAD

1 stop11h 15mBritish Airways

Deal found 2/21

$2,152

Fri 3/75:35 pmIAD - SOU

1 stop10h 15mKLM

Sun 3/99:30 amSOU - IAD

1 stop11h 15mKLM

Deal found 2/22

$1,262

Mon 3/177:00 pmIAD - SOU

2 stops13h 00mBritish Airways

Thu 3/209:30 amSOU - IAD

1 stop11h 10mBritish Airways

Deal found 2/22

$2,103

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 February 22, 2025.

Wed 7/25:20 pmIAD - SOU

1 stop10h 20mAer Lingus

Deal found 2/22

$643

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

Tue 4/8

5:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Tue 4/15

5:35 pm-3:35 pm

1 stop27h 00m

$770

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 4/9

7:35 am-8:45 am

2 stops20h 10m

Southampton Eastleigh

Tue 4/22

5:35 pm-3:35 pm

1 stop27h 00m

$942

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 4/8

8:30 pm-7:30 pm

3 stops18h 00m

Southampton Eastleigh

Tue 4/15

8:00 pm-7:20 pm

2 stops28h 20m

$1,025

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 4/9

5:20 pm-8:40 am

1 stop10h 20m

Southampton Eastleigh

Sun 4/20

8:55 am-5:30 pm

2 stops13h 35m

$1,968

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 7/2

5:20 pm-8:40 am

1 stop10h 20m

$643

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

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

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta

8.0

Very good

8,203 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

KLM

7.8

Good

1,332 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

Aer Lingus

7.0

Good

1,071 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

British Airways

6.6

Okay

6,761 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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 $770, 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 British Airways - these airlines can fly you to your destination from $942 and $1,968, respectively. KLM is priced at 14% 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

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Complete your trip

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Top 3 airlines flying from Dulles Intl to Southampton

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest$646	Average$811	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$721	Average$1,094	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$729	Average$972	FlexibilityNo cancel fee	On-timeN/A

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$643+ 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

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Cheap flight deals from Dulles Intl to Southampton

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Round-trip from

One-way from

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Cheapest in

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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 February 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 February 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 February 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

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Top 3 airlines flying from Dulles Intl to Southampton

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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 February 22, 2025.