Cheap flights from Southampton to Portsmouth
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How to find the cheapest flight from
Southampton (SOU) to Portsmouth (PSM)
How far in advance should I book a flight from Southampton to Portsmouth?
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 59% on flights from Southampton to Portsmouth 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 £361. For sooner than that we have options available in the next 3 days from £429.
What is the cheapest month to fly from Southampton to Portsmouth?
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Portsmouth. Flights to Portsmouth from Southampton in November are about £357 on average during November, but can be found for as low as £229.