Due to multiple factors, expect to potentially pay more when booking in August. For low rates, May can be a great choice for travel to French Guiana. Flights to French Guiana from United Kingdom in May are about £744 on average during May, but can be found for as low as £477.
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 United Kingdom and French Guiana 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.
While on average a flight from United Kingdom to French Guiana is generally £979, our data shows the cheapest flight currently is £680. When looking at the most popular route, (Manchester - Cayenne Rochambeau), you can expect to pay £707 for that flight.