Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Londres. Flights to Londres from Stornoway in September are about £541 on average during September, but can be found for as low as £386.
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 Stornoway and Londres 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.
When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Stornoway is roughly greater than that of Londres. You can assume this to be the case over the next 25 days.
Temperatures around the 27 °Cs can be experienced in July. The weather in Londres is hotter than in Stornoway. Plan for potential changes in flight availability as peak weather approaches in this location.