Question 1

How popular is this Lisbon to San Francisco flight route?

Accepted Answer

Flights from Lisbon Humberto Delgado to San Francisco have been viewed 3 times in the past calendar month.

Question 2

What are the cheapest airlines flying from Lisbon to San Francisco round-trip?

Accepted Answer

According to our current data, Delta (£510), KLM (£518), and British Airways (£519) offers the cheapest pricing from Lisbon to San Francisco. Users have found that Delta is 16% cheaper than the other options available to this destination.

Question 3

What are the cheapest airlines to fly from Lisbon to San Francisco one-way?

Accepted Answer

One-way options have recently been found by users for as low as £396 on British Airways. Other airlines that offer cheap prices include Finnair from £464 and Delta from £513 one-way.

Question 4

How far ahead should I book a flight from Lisbon to San Francisco?

Accepted Answer

To ensure you get the cheapest price possible for a flight from Lisbon to San Francisco, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 5

What is the cheapest month to book a flight from Lisbon to San Francisco?

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of £538). Flying from Lisbon to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

What is the cheapest day to fly from Lisbon to San Francisco?

Accepted Answer

Travellers seeking maximum savings on their Lisbon to San Francisco flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Question 9

What are the most reliable airlines from Lisbon to San Francisco?

Accepted Answer

The top 3 most reliable airlines when flying from Lisbon to San Francisco are Etihad Airways (79%), JetBlue (77%) and TAP AIR PORTUGAL (77%).

Question 10

How far in advance should I book a flight from Lisbon to San Francisco?

Accepted Answer

Find a great deal and save up to 42% by booking at least 54 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Lisbon to San Francisco within the next two weeks, with the cheapest ticket starting at £475.

Question 11

What is the cheapest month to fly from Lisbon to San Francisco?

Accepted Answer

Our data shows that February tends to be the cheapest month to fly to San Francisco from Lisbon. Users have commonly found prices around £612 for the month, but tickets can be as low as £413. Due to multiple factors, prepare for potentially higher prices in August.

Question 12

What is the cheapest time of day to fly from LIS to SFO?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lisbon to San Francisco as you normally would.

Question 13

Can I find deals for flights from Lisbon to San Francisco that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Lisbon to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 14

How can I find direct flights from Lisbon to San Francisco?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to San Francisco.

Question 15

Can I find deals for business class flights from Lisbon to San Francisco?

Accepted Answer

Yes. Cheapflights offers flight deals from Lisbon to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 16

How does Cheapflights help users find flights from Lisbon to San Francisco?

Accepted Answer

When you search for this flight from Lisbon to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 17

Why should you use Cheapflights to find cheap flight tickets from Lisbon to San Francisco?

Accepted Answer

Cheapflights helps you find that perfect flight to San Francisco from Lisbon by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 18

Can Cheapflights find flights from Lisbon to San Francisco with no change fees?

Accepted Answer

Need flexible booking options for your flight to San Francisco from Lisbon? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 19

Can Cheapflights notify me if prices for flights from Lisbon to San Francisco become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Lisbon to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	£510
One-way from	£389
Popular in	August
Cheapest in	February
Average price	£667

Cheap flights from Lisbon to San Francisco from £389

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Lisbon to San Francisco

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Find flight deals from Lisbon to San Francisco

Cheapest flights from Lisbon to San FranciscoExplore the most affordable flight options available from Lisbon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.

Explore the most affordable flight options available from Lisbon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lisbon to San Francisco that are best for you.

Best time to book a flight from Lisbon to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Lisbon with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Lisbon to San Francisco

How far ahead should I book a flight from Lisbon to San Francisco?

Use this chart to determine the optimal time to book a return flight from Lisbon to San Francisco. Price data was last updated on 11 July 2025.

What is the cheapest month to book a flight from Lisbon to San Francisco?

What is the cheapest time of day to fly from LIS to SFO?

Find hourly flight availability from Lisbon to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 July 2025.

Reviews of airlines servicing San Francisco

Check out reviews from past customers who have flown with Delta, KLM, andFinnair from Lisbon to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Lisbon to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How popular is this Lisbon to San Francisco flight route?

What are the cheapest airlines flying from Lisbon to San Francisco round-trip?

What are the cheapest airlines to fly from Lisbon to San Francisco one-way?

What are the most reliable airlines from Lisbon to San Francisco?

Can I find deals for flights from Lisbon to San Francisco that include hotel bookings?

How can I find direct flights from Lisbon to San Francisco?

Can I find deals for business class flights from Lisbon to San Francisco?

What is the cheapest month to book a flight from Lisbon to San Francisco?

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How does Cheapflights help users find flights from Lisbon to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Lisbon to San Francisco?

Can Cheapflights find flights from Lisbon to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Lisbon to San Francisco become cheaper?

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Cheapest flights from Lisbon to San Francisco
Explore the most affordable flight options available from Lisbon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.