£418 Find cheap flights from Washington, D.C. to Southampton
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Southampton departing on 15/7. 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.
Return
1 adult
Economy
0 bags
Tue 4/6
Tue 11/6
Search hundreds of travel sites at once for deals on flights to Southampton
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southampton, as well as popular online travel agencies
...and more
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southampton, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,369,418 times on KAYAK, and here's why:
Save 28% or moreCompare multiple travel sites with one search.
Filter your dealsChoose cabin class, free Wi-Fi and more.
Bundle and saveSave money when you bundle your flight + hotel.
Cheap flight deals from Washington, D.C. to Southampton (IAD-SOU)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Southampton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Flights from Washington, D.C. to Southampton - Travel Insights & Trends
Get data-powered insights and trends into flights from Washington, D.C. to Southampton to help you find the cheapest flights, the best time to fly and much more.
Which airlines provide the cheapest flights from Washington, D.C. to Southampton?
The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Washington, D.C. to Southampton were found on KLM (£671) and British Airways (£748). British Airways proposed the cheapest one-way flight at £418.
Good to know - Cheap tickets from Washington, D.C. to Southampton
When to book flights from Washington, D.C. to Southampton
Are your dates flexible? Find out the best times to travel from Washington, D.C. to Southampton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.
FAQs for booking Washington, D.C. to Southampton flights
What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Southampton?
In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Southampton was £524 for a one-way ticket and £842 for a return.
Which airports will I be using when flying from Washington, D.C. to Southampton?
On your way to Southampton, you’ll fly out from Washington, D.C. Dulles Intl. You’ll be landing at Southampton Eastleigh.
Which aircraft models fly most regularly from Washington, D.C. to Southampton?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Washington, D.C. to Southampton?
oneworld, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Southampton, with SkyTeam being the most commonly used for this route.
How does KAYAK find such low prices on flights from Washington, D.C. to Southampton?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Southampton.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Southampton?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southampton from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington, D.C. to Southampton?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Southampton with an airline and back to Washington, D.C. with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Southampton?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Southampton from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
See more FAQs
Book cheap flights from Washington, D.C. to Southampton
Cheapest flights to Southampton from Washington, D.C. found in 2024
Recent one-way flight deals
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Southampton found on KAYAK in the last 72 hours.
15/7Mon
1 stopBritish Airways
11h 00mIAD-SOU
£418
14/7Sun
2 stopsBritish Airways
14h 48mIAD-SOU
£420
13/7Sat
2 stopsBritish Airways
15h 40mIAD-SOU
£444
11/7Thu
2 stopsBritish Airways
29h 40mIAD-SOU
£451
13/7Sat
1 stopDelta
10h 10mIAD-SOU
£469
14/7Sun
1 stopBritish Airways
11h 00mIAD-SOU
£512
18/7Thu
1 stopBritish Airways
11h 00mIAD-SOU
£815
17/6Mon
2 stopsBritish Airways
14h 57mIAD-SOU
£873
12/7Fri
1 stopBritish Airways
14h 05mIAD-SOU
£912
15/6Sat
1 stopDelta
10h 30mIAD-SOU
£918
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Last minute flights from Washington, D.C. to Southampton
Last minute flight, train and bus deals
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Southampton that are departing in the next 10 days.