Cheap flights from London to Portsmouth, New Hampshire
Cheap flight deals from London to Portsmouth
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Portsmouth (PSM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 February 2025.
Popular in | August |
|---|---|
Cheapest in | September |
Average price | £428 |
Best time to book a flight from London to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from London with our price prediction graph.
Travel insights for flights from London to Portsmouth
Get recent, data-driven insights about flights from London to Portsmouth including ideal travel times, pricing trends, and more.
Rainfall in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portsmouth, New Hampshire ranges from 57.0 - 129.0 inches per month. November is typically the wettest month, when rainfall can reach 129.0 mm. August is typically the driest time to visit Portsmouth, New Hampshire when rainfall is around 57.0 mm.
Temperature in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portsmouth, New Hampshire, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).
Related info for your journey
Find useful and relevant information for your journey from London to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for London to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from London to Portsmouth?
Cheapflights makes it easy to find London to Portsmouth flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
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Can Cheapflights find flights from London to Portsmouth with no change fees?
Certainly. Search results for flights to Portsmouth from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from London to Portsmouth become cheaper?
Yes, Cheapflights offers price alerts on London to Portsmouth flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.