Find a great deal and save up to 38% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Portland to Southampton within the next two weeks, with the cheapest ticket starting at $813.
February can be a great time to fly to Southampton from Portland with a flight ticket averaging about $634. Cheapflights users have found deals in the month of February for as cheap as $394. The most expensive prices can be found in the month of June.