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

Cheapflights users have booked flights from Washington, D.C. to Southampton round-trip from $809. Other airlines that can offer you cheap pricing are KLM, from $814, and Virgin Atlantic, from $823. These flights start at 11% lower than the current average price 3 months from now.

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

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

What are the most popular routes from Washington, D.C. to Southampton?

When deciding which route to take from Washington, D.C. to Southampton consider Washington, D.C. Dulles Intl - Southampton Eastleigh, Baltimore/Washington - Southampton Eastleigh or Washington, D.C. Reagan-National - Southampton Eastleigh as they are the most popular.

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

Friday flights are found to be more expensive to fly from Washington, D.C. to Southampton. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Southampton.

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

Travelers have found it’s best to book a flight 48 days in advance to save up to 30% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 48 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. to Southampton 1-2 weeks in advance for as low as $802, or $899 for flights within the next 24 hours.

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

Our data shows that January tends to be the cheapest month to fly to Southampton from Washington, D.C.. Users have commonly found prices around $743 for the month, but tickets can be as low as $385. Due to multiple factors, prepare for potentially higher prices in June.

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

For a flight from Washington, D.C. 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. per day. 3 airlines have flights to Southampton Eastleigh from Washington, D.C. on a regular basis.

Can I find deals for flights from Washington, D.C. to Southampton that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Southampton?

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

Can I find deals for business class flights from Washington, D.C. to Southampton?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$494+ Flights from Washington, D.C. to Southampton

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Cheap flight deals from Washington, D.C. to Southampton

Round-trip from	$804 (Mytrip)
One-way from	$707 (KAYAK)
Popular in	June
Cheapest in	October
Average price	$1,233

From Washington, D.C. (WAS) to Southampton Eastleigh

Search Deals

One-way flight from Washington, D.C. (WAS) to Southampton Eastleigh

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($182 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Washington, D.C. to Southampton

Cheapest flights from Washington, D.C. to Southampton
Explore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

jue. 10/26:30 amBWI - SOU

3 stops31h 25mMultiple Airlines

lun. 10/138:05 amSOU - BWI

2 stops41h 57mMultiple Airlines

Deal found 6/11

$804

lun. 9/15:25 pmIAD - SOU

1 stop10h 25mDelta

mar. 9/95:35 pmSOU - IAD

1 stop27h 00mDelta

Deal found 6/10

$809

mié. 9/108:23 pmIAD - SOU

2 stops15h 37mKLM

mié. 9/245:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 6/9

$814

dom. 10/195:25 pmIAD - SOU

1 stop10h 20mVirgin Atlantic

mar. 10/289:00 amSOU - IAD

2 stops18h 00mVirgin Atlantic

Deal found 6/9

$819

dom. 8/36:25 pmBWI - SOU

2 stops33h 25mVirgin Atlantic

mar. 8/196:25 pmSOU - BWI

2 stops31h 26mVirgin Atlantic

Deal found 6/10

$823

mié. 9/106:25 pmBWI - SOU

2 stops17h 35mKLM

mié. 9/249:20 amSOU - BWI

2 stops17h 23mKLM

Deal found 6/9

$824

jue. 10/21:30 pmDCA - SOU

2 stops14h 15mKLM

lun. 10/139:20 amSOU - DCA

2 stops15h 00mKLM

Deal found 6/11

$824

dom. 8/39:45 amIAD - SOU

2 stops26h 00mMultiple Airlines

mar. 8/198:00 pmSOU - IAD

2 stops24h 50mMultiple Airlines

Deal found 6/10

$864

dom. 10/191:00 pmBWI - SOU

2 stops14h 45mDelta

mar. 10/289:00 amSOU - BWI

2 stops17h 56mDelta

Deal found 6/9

$914

mié. 7/95:20 pmIAD - SOU

1 stop10h 20mAer Lingus

mié. 7/169:10 amSOU - IAD

1 stop15h 20mAer Lingus

Deal found 6/11

$951

vie. 7/2512:10 pmDCA - SOU

2 stops15h 35mDelta

vie. 8/19:20 amSOU - DCA

2 stops19h 15mDelta

Deal found 6/10

$1,008

jue. 10/910:45 pmIAD - SOU

2 stops15h 40mBritish Airways

mié. 10/229:10 amSOU - IAD

1 stop15h 20mBritish Airways

Deal found 6/10

$1,123

Best flights from Washington, D.C. to Southampton
Discover carefully curated flight deals from Washington, D.C. to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

jue. 10/26:30 amBWI - SOU

3 stops31h 25mMultiple Airlines

lun. 10/138:05 amSOU - BWI

2 stops41h 57mMultiple Airlines

Deal found 6/11

$804

lun. 9/15:25 pmIAD - SOU

1 stop10h 25mDelta

mar. 9/95:35 pmSOU - IAD

1 stop27h 00mDelta

Deal found 6/10

$809

mié. 9/108:23 pmIAD - SOU

2 stops15h 37mKLM

mié. 9/245:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 6/9

$814

dom. 8/36:25 pmBWI - SOU

2 stops33h 25mVirgin Atlantic

mar. 8/196:25 pmSOU - BWI

2 stops31h 26mVirgin Atlantic

Deal found 6/10

$823

mié. 7/95:20 pmIAD - SOU

1 stop10h 20mAer Lingus

mié. 7/169:10 amSOU - IAD

1 stop15h 20mAer Lingus

Deal found 6/11

$951

mié. 9/106:25 pmBWI - SOU

2 stops17h 35mKLM

mié. 9/249:20 amSOU - BWI

2 stops17h 23mKLM

Deal found 6/9

$824

mar. 7/299:00 pmIAD - SOU

1 stop17h 30mBritish Airways

jue. 8/78:40 amSOU - IAD

2 stops16h 30mBritish Airways

Deal found 6/10

$1,723

dom. 8/39:45 amIAD - SOU

2 stops26h 00mMultiple Airlines

mar. 8/198:00 pmSOU - IAD

2 stops24h 50mMultiple Airlines

Deal found 6/10

$864

jue. 10/21:30 pmDCA - SOU

2 stops14h 15mKLM

lun. 10/139:20 amSOU - DCA

2 stops15h 00mKLM

Deal found 6/11

$824

dom. 10/191:00 pmBWI - SOU

2 stops14h 45mDelta

mar. 10/289:00 amSOU - BWI

2 stops17h 56mDelta

Deal found 6/9

$914

dom. 7/275:25 pmIAD - SOU

1 stop10h 20mVirgin Atlantic

dom. 8/39:20 amSOU - IAD

1 stop11h 15mVirgin Atlantic

Deal found 6/12

$1,052

vie. 7/2512:10 pmDCA - SOU

2 stops15h 35mDelta

vie. 8/19:20 amSOU - DCA

2 stops19h 15mDelta

Deal found 6/10

$1,008

Last-minute flights from Washington, D.C. to Southampton
Discover last-minute flight deals from Washington, D.C. to Southampton. Data last updated junio 12, 2025 and is based on user searches.

dom. 6/159:20 pmBWI - SOU

2 stops13h 40mBritish Airways

vie. 6/208:30 amSOU - BWI

2 stops16h 05mBritish Airways

Deal found 6/12

$3,872

mar. 6/171:00 pmIAD - SOU

2 stops14h 45mDelta

jue. 6/199:20 amSOU - IAD

1 stop11h 15mDelta

Deal found 6/12

$2,188

mar. 6/1712:32 pmBWI - SOU

2 stops15h 13mDelta

jue. 6/199:20 amSOU - BWI

2 stops16h 23mDelta

Deal found 6/12

$2,198

mar. 6/172:55 pmDCA - SOU

2 stops12h 50mDelta

jue. 6/199:20 amSOU - DCA

2 stops15h 34mDelta

Deal found 6/12

$2,198

mar. 6/179:00 pmIAD - SOU

1 stop17h 30mBritish Airways

sáb. 6/214:45 pmSOU - IAD

2 stops28h 05mBritish Airways

Deal found 6/12

$3,306

mar. 6/179:20 pmBWI - SOU

2 stops13h 40mBritish Airways

vie. 6/208:30 amSOU - BWI

2 stops16h 05mBritish Airways

Deal found 6/12

$3,872

sáb. 6/218:25 pmIAD - SOU

1 stop31h 45mAer Lingus

sáb. 6/289:40 amSOU - IAD

1 stop11h 10mAer Lingus

Deal found 6/11

$1,730

sáb. 6/218:25 amBWI - SOU

3 stops26h 00mMultiple Airlines

sáb. 6/289:40 amSOU - BWI

3 stops26h 50mMultiple Airlines

Deal found 6/11

$1,785

sáb. 6/2111:51 amBWI - SOU

2 stops15h 54mKLM

sáb. 6/289:20 amSOU - BWI

2 stops20h 09mKLM

Deal found 6/11

$2,153

mié. 7/212:32 pmBWI - SOU

2 stops15h 13mDelta

mar. 7/159:20 amSOU - BWI

2 stops17h 44mDelta

Deal found 6/11

$1,463

mié. 7/95:20 pmIAD - SOU

1 stop10h 20mAer Lingus

mié. 7/169:10 amSOU - IAD

1 stop15h 20mAer Lingus

Deal found 6/11

$951

mié. 7/98:30 pmBWI - SOU

2 stops18h 00mMultiple Airlines

mié. 7/169:10 amSOU - BWI

2 stops15h 15mMultiple Airlines

Deal found 6/11

$1,101

One-way flights from Washington, D.C. to Southampton
Search for one-way flight options from Washington, D.C. to Southampton. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

jue. 9/48:25 pmIAD - SOU

1 stop31h 15mAer Lingus

Deal found 6/11

$707

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

lun. 9/1

5:25 pm-5:00 pm

1 stop18h 35m

Southampton Eastleigh

lun. 9/15

5:35 pm-3:35 pm

1 stop27h 00m

$809

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

mié. 9/10

8:23 pm-5:00 pm

2 stops15h 37m

Southampton Eastleigh

mié. 9/24

5:35 pm-3:35 pm

1 stop27h 00m

$814

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

dom. 10/19

5:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

mar. 10/28

9:00 am-11:00 pm

2 stops18h 00m

$819

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

dom. 8/3

6:25 pm-8:50 am

2 stops33h 25m

Southampton Eastleigh

mar. 8/19

6:25 pm-8:51 pm

2 stops31h 26m

$823

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

mié. 9/10

6:25 pm-5:00 pm

2 stops17h 35m

Southampton Eastleigh

mié. 9/24

9:20 am-9:43 pm

2 stops17h 23m

$824

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

dom. 8/3

9:45 am-4:45 pm

2 stops26h 00m

Southampton Eastleigh

mar. 8/19

8:00 pm-3:50 pm

2 stops24h 50m

$864

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

mié. 7/9

5:20 pm-8:40 am

1 stop10h 20m

Southampton Eastleigh

mié. 7/16

9:10 am-7:30 pm

1 stop15h 20m

$951

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

vie. 7/25

12:10 pm-8:45 am

2 stops15h 35m

Southampton Eastleigh

vie. 8/1

9:20 am-11:35 pm

2 stops19h 15m

$1,008

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

mié. 7/9

8:30 pm-7:30 pm

2 stops18h 00m

Southampton Eastleigh

mié. 7/16

9:10 am-7:25 pm

2 stops15h 15m

$1,101

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

jue. 10/9

10:45 pm-7:25 pm

2 stops15h 40m

Southampton Eastleigh

mié. 10/22

9:10 am-7:30 pm

1 stop15h 20m

$1,123

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 17 results

Best time to book a flight from Washington, D.C. to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Southampton

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Southampton (average of $787). Flying from Washington, D.C. 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 WAS to SOU?

When flying from Washington, D.C. to Southampton, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 23% versus 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

To help decide which airline to fly from Washington, D.C. to Southampton, see what other customers have to say about Delta, KLM and Virgin Atlantic. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Aer Lingus

7.1

Good

1,117 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

British Airways

6.6

Okay

7,008 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Southampton from Washington, D.C.?
For a flight from Washington, D.C. 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. per day. 3 airlines have flights to Southampton Eastleigh from Washington, D.C. on a regular basis.
What are the cheapest airlines flying from Washington, D.C. to Southampton round-trip?
Cheapflights users have booked flights from Washington, D.C. to Southampton round-trip from $809. Other airlines that can offer you cheap pricing are KLM, from $814, and Virgin Atlantic, from $823. These flights start at 11% lower than the current average price 3 months from now.
What are the most popular routes from Washington, D.C. to Southampton?
When deciding which route to take from Washington, D.C. to Southampton consider Washington, D.C. Dulles Intl - Southampton Eastleigh, Baltimore/Washington - Southampton Eastleigh or Washington, D.C. Reagan-National - Southampton Eastleigh as they are the most popular.
Can I find deals for flights from Washington, D.C. to Southampton that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Southampton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Southampton.
Can I find deals for business class flights from Washington, D.C. to Southampton?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Southampton?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Southampton (average of $787). Flying from Washington, D.C. 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.

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Alternative routes for Washington, D.C. to Southampton

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Complete your trip

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Milton Keynes car rentals

Top 3 airlines flying from Washington, D.C. to Southampton

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest$646	Average$900	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$721	Average$1,206	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$778	Average$1,117	FlexibilityNo cancel fee	On-timeN/A

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$494+ Cheap flights from Washington, D.C. (WAS) 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Washington, D.C. to Southampton

Cheapest flights from Washington, D.C. to SouthamptonExplore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Explore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Southampton that are best for you.

Best time to book a flight from Washington, D.C. to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Southampton

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

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

Find hourly flight availability from Washington, D.C. 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 junio 12, 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

To help decide which airline to fly from Washington, D.C. to Southampton, see what other customers have to say about Delta, KLM and Virgin Atlantic. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

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

What are the most popular routes from Washington, D.C. to Southampton?

Can I find deals for flights from Washington, D.C. to Southampton that include hotel bookings?

How can I find direct flights from Washington, D.C. to Southampton?

Can I find deals for business class flights from Washington, D.C. to Southampton?

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

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

Top 3 airlines flying from Washington, D.C. to Southampton

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Cheapest flights from Washington, D.C. to Southampton
Explore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.