Travellers have found it’s best to book a flight 55 days in advance to save up to 30% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 55 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Southampton to San Juan 1-2 weeks in advance for as low as £758, or £972 for flights within the next 24 hours.
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 San Juan 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.
Expect the weather to be around 32 °C on average in June. 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 San Juan is generally hotter than in Southampton.