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

Currently priced at $1,033, Aer Lingus will fly you from Southampton to Washington, D.C. Dulles Intl Airport and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $1,088.

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

To save on the cost of your flight from Southampton to Washington, D.C. Dulles Intl Airport, book at least 50 days before your planned departure. Booking around this time can save you about 33% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $725 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $895.

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

Our data shows that February tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Southampton. Users have commonly found prices around $728 for the month, but tickets can be as low as $324. Due to multiple factors, prepare for potentially higher prices in July.

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

When flying from Southampton to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on Southampton-Washington, D.C. Dulles Intl Airport 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 Southampton-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

If you book a flight to Washington, D.C. Dulles Intl from Southampton, you will be flying from Eastleigh, which is the city’s only airport. Southampton Eastleigh (SOU) is located 3.5 mi from the center of Southampton. There are 0 flights from Eastleigh to Washington, D.C. Dulles Intl per day from 0 different 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 vacation 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.

$409+ Save on Flights from Southampton to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Southampton to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,033 (Cheapflightsfares)
One-way from	$409 (Kiwi.com)
Popular in	July
Cheapest in	February
Average price	$630

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

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

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

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

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Highest demand for flights based on searches. 12% potential increase in price ($101 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($12 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 Southampton to Dulles Intl

Cheapest flights from Southampton to Dulles Intl
Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

vie. 5/238:00 pmSOU - IAD

2 stops29h 15mAer Lingus

lun. 5/2610:40 pmIAD - SOU

2 stops28h 25mAer Lingus

Deal found 2/20

$1,033

vie. 5/239:20 amSOU - IAD

1 stop11h 15mDelta

lun. 5/267:05 pmIAD - SOU

2 stops16h 55mDelta

Deal found 2/20

$1,088

Best flights from Southampton to Dulles Intl
Discover carefully curated flight deals from Southampton to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated febrero 20, 2025.

vie. 5/238:00 pmSOU - IAD

2 stops29h 15mAer Lingus

lun. 5/2610:40 pmIAD - SOU

2 stops28h 25mAer Lingus

Deal found 2/20

$1,033

vie. 5/239:20 amSOU - IAD

1 stop11h 15mDelta

lun. 5/267:05 pmIAD - SOU

2 stops16h 55mDelta

Deal found 2/20

$1,088

One-way flights from Southampton to Dulles Intl
Search for one-way flight options from Southampton to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated febrero 20, 2025.

lun. 5/1212:10 pmSOU - IAD

3 stops51h 06mMultiple Airlines

Deal found 2/20

$409

dom. 5/119:10 amSOU - IAD

1 stop11h 40mAer Lingus

Deal found 2/19

$650

Find flights from Southampton to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

vie. 5/23

8:00 pm-8:15 pm

2 stops29h 15m

Washington, D.C. Dulles Intl

lun. 5/26

10:40 pm-8:05 am

2 stops28h 25m

$1,033

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

vie. 5/23

9:20 am-3:35 pm

1 stop11h 15m

Washington, D.C. Dulles Intl

lun. 5/26

5:25 pm-8:50 am

1 stop10h 25m

$1,088

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

lun. 5/12

12:10 pm-10:16 am

3 stops51h 06m

$409

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

dom. 5/11

9:10 am-3:50 pm

1 stop11h 40m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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

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

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

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

Currently, August is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Southampton to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,220 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus

7.0

Good

1,070 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Southampton to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Southampton, you will be flying from Eastleigh, which is the city’s only airport. Southampton Eastleigh (SOU) is located 3.5 mi from the center of Southampton. There are 0 flights from Eastleigh to Washington, D.C. Dulles Intl per day from 0 different airlines.
What are the cheapest airlines flying from Southampton to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $1,033, Aer Lingus will fly you from Southampton to Washington, D.C. Dulles Intl Airport and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $1,088.
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 vacation 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.
What is the cheapest month to book a flight from Southampton to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Southampton to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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.

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$409+ Cheap flights from Southampton (SOU) to Dulles Intl (IAD)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Southampton to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Southampton to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Southampton to Dulles Intl

Cheapest flights from Southampton to Dulles IntlExplore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

Find flights from Southampton to Dulles Intl within your budget

Best time to book a flight from Southampton to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southampton with our price prediction graph.

Travel insights for flights from Southampton to Dulles Intl

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

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

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

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?

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

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

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

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

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

Traveling to a place near Southampton?

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Cheapest flights from Southampton to Dulles Intl
Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.