Travelers have found it’s best to book a flight 61 days in advance to save up to 62% 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 61 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 Portland to Southampton 1-2 weeks in advance for as low as $990, or $1,302 for flights within the next 24 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Southampton. Flights to Southampton from Portland in August are about $782 on average during August, but can be found for as low as $545.
When flying from Portland 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.