When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 44% on flights from Washington Dulles Intl to Southampton compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $910. For sooner than that we have options available in the next 3 days from $1,146.
Our data shows that October tends to be the cheapest month to fly to Southampton from Washington Dulles Intl. Users have commonly found prices around $714 for the month, but tickets can be as low as $445. Due to multiple factors, prepare for potentially higher prices in July.
When flying from Washington Dulles Intl to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.