Users have found that booking a flight from Portsmouth to Napa Valley at least 61 days early can save you up to 26% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Portsmouth to Napa Valley for as little as £614 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £687 for flights departing within the next 3 days.
Flights from Portsmouth to Napa Valley lean towards being more expensive in July. Prices are generally better when you fly from Portsmouth to Napa Valley in February, with the cheapest ticket starting at £336.
When flying from Portsmouth to Napa Valley, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.