Average price (all airlines)
When planning your SFO-LIS trip, keep in mind that United Airlines is typically rated 6.8/10. This rating comes from 7,028 reviews by Cheapflights users who have traveled with United Airlines.
Currently, the most affordable month to book a United Airlines flight from San Francisco to Lisbon in January, with an average price of HK$0. Conversely, traveling with United Airlines from San Francisco to Lisbon in July will be the most expensive, with an average cost of HK$1,215. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
11 - 23 °C
If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).