$635 Find Cheap United Airlines Flights from San Francisco to Lisbon

When to Book Flights with United Airlines from San Francisco to Lisbon

• How far in advance should I book tickets for a flight with United Airlines from San Francisco to Lisbon?

  Generally, when trying to get a below average price for your ticket, try to book around 1 days before departure. For the cheapest possible price, our data suggests booking 91 days before departure.

• Is United Airlines the cheapest airline to fly with from San Francisco to Lisbon?

  With an average price of $830 return, United Airlines is not the cheapest airline to fly from San Francisco to Lisbon with. Instead, for the lowest price, our data suggests flying with Scandinavian Airlines, where a return flight costs $569 on average.

• What is the cheapest United Airlines flight from San Francisco to Lisbon?

  In the last 3 days, the lowest price for a flight with United Airlines from San Francisco to Lisbon was $584 for a return flight and $412 for a one-way flight.

• Does United Airlines fly direct to Lisbon from San Francisco?

  No, United Airlines does not fly the route directly.

• What’s the cheapest day of the week to fly from San Francisco to Lisbon with United Airlines?

  On average, the cheapest day of the week to fly from San Francisco to Lisbon with United Airlines is Sunday, when prices are around $378. The most expensive day is generally Tuesday, where the average price is around $453.

• What’s the cheapest month to fly from San Francisco to Lisbon with United Airlines?

  The cheapest month for United Airlines flights to Lisbon from San Francisco is generally February, where plane tickets cost $455 on average. If possible, try to avoid the most expensive months of April and September, where tickets cost $661 and $746 respectively.