To save on the cost of your flight from Swansea to San Francisco, book at least 57 days before your planned departure. Booking around this time can save you about 29% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £422 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £488.
Our data shows that November tends to be the cheapest month to fly to San Francisco from Swansea. Users have commonly found prices around £376 for the month, but tickets can be as low as £267. Due to multiple factors, prepare for potentially higher prices in July.
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 Swansea and San Francisco 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 Swansea Fairwood Comm to San Francisco was viewed by 181 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
Expect the weather to be around 25 °C on average in September. 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 Francisco is generally hotter than in Swansea.