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 Derry and Portland 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.
This flight path from Londonderry Eglinton to Portland was viewed by 20 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
Expected rainfall in Derry is more than in Portland. You can expect this to be the case over the next 0 days.
You can imagine temperatures to be in the 28 °C range in July. The weather in Portland is generally hotter than Derry's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.