Find a great deal and save up to 37% by booking at least 58 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 Portsmouth to Heathrow within the next two weeks, with the cheapest ticket starting at £82.
Flights from Portsmouth to Heathrow lean towards being more expensive in December. Prices are generally better when you fly from Portsmouth to Heathrow in March, with the cheapest ticket starting at £46.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Southampton and Heathrow for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
AccesRail and Flybe are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.
Yes, there are multiple flights from Portsmouth to Heathrow for under £652. The cheapest flight booked recently is on Multiple Airlines for just £586, but on average you can expect to pay £586.
There are no direct flights from Portsmouth to Heathrow, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
The rainfall in Southampton is generally same as the rainfall in Heathrow. This will continue over the next 13 days.
Expect the weather to be around 24 °C on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Heathrow is generally hotter than in Southampton.