£259 Cheap Flights from San Francisco (SFO) to Lisbon (LIS)

View £259 flight on Sun, 27 Dec 2026Opens in a new window

Popular airlines from San Francisco International Airport (SFO) to Humberto Delgado Airport (LIS)

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Cheap Flights from San Francisco (SFO) to Lisbon (LIS)

Prices were available within the past 7 days and start at £259 for one-way flights and £514 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Mon, 28 Sept - Tue, 6 Oct
SFO
San Francisco
LIS
Lisbon
£514 Return, found 5 days ago
£514
Return
found 5 days ago
Select TAP Portugal flight, departing Mon, 28 Sept from San Francisco to Lisbon, returning Tue, 6 Oct, priced at £514 found 5 days ago
British Airways
Tue, 27 Oct - Tue, 3 Nov
SFO
San Francisco
LIS
Lisbon
£571 Return, found 5 days ago
£571
Return
found 5 days ago
Select British Airways flight, departing Tue, 27 Oct from San Francisco to Lisbon, returning Tue, 3 Nov, priced at £571 found 5 days ago
Iberia
Tue, 27 Oct - Tue, 3 Nov
SFO
San Francisco
LIS
Lisbon
£573 Return, found 5 days ago
£573
Return
found 5 days ago
Select Iberia flight, departing Tue, 27 Oct from San Francisco to Lisbon, returning Tue, 3 Nov, priced at £573 found 5 days ago
Scandinavian Airlines
Thu, 15 Apr - Wed, 28 Apr
SFO
San Francisco
LIS
Lisbon
£581 Return, found 4 days ago
£581
Return
found 4 days ago
Select Scandinavian Airlines flight, departing Thu, 15 Apr from San Francisco to Lisbon, returning Wed, 28 Apr, priced at £581 found 4 days ago
KLM
Tue, 27 Oct - Tue, 3 Nov
SFO
San Francisco
LIS
Lisbon
£586 Return, found 5 days ago
£586
Return
found 5 days ago
Select KLM flight, departing Tue, 27 Oct from San Francisco to Lisbon, returning Tue, 3 Nov, priced at £586 found 5 days ago
Swiss International Air Lines
Tue, 29 Dec - Tue, 5 Jan
SFO
San Francisco
LIS
Lisbon
£611 Return, found 3 hours ago
£611
Return
found 3 hours ago
Select Swiss International Air Lines flight, departing Tue, 29 Dec from San Francisco to Lisbon, returning Tue, 5 Jan, priced at £611 found 3 hours ago
Air France
Tue, 29 Dec - Tue, 5 Jan
SFO
San Francisco
LIS
Lisbon
£617 Return, found 3 hours ago
£617
Return
found 3 hours ago
Select Air France flight, departing Tue, 29 Dec from San Francisco to Lisbon, returning Tue, 5 Jan, priced at £617 found 3 hours ago
Delta
Mon, 3 Aug - Wed, 19 Aug
SFO
San Francisco
LIS
Lisbon
£620 Return, found 3 days ago
£620
Return
found 3 days ago
Select Delta flight, departing Mon, 3 Aug from San Francisco to Lisbon, returning Wed, 19 Aug, priced at £620 found 3 days ago
United
Wed, 5 Aug - Wed, 19 Aug
SFO
San Francisco
LIS
Lisbon
£625 Return, found 3 days ago
£625
Return
found 3 days ago
Select United flight, departing Wed, 5 Aug from San Francisco to Lisbon, returning Wed, 19 Aug, priced at £625 found 3 days ago
Lufthansa
Tue, 4 Aug - Wed, 19 Aug
SFO
San Francisco
LIS
Lisbon
£626 Return, found 2 days ago
£626
Return
found 2 days ago
Select Lufthansa flight, departing Tue, 4 Aug from San Francisco to Lisbon, returning Wed, 19 Aug, priced at £626 found 2 days ago

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from £967
LIS
Humberto Delgado
Cheapest
Flights from £967

Find the cheapest month to fly from San Francisco (SFO) to Lisbon (LIS)

November is typically the cheapest month to fly

From £477 - £1,131 per traveller.

Frequently asked questions

Which airlines fly direct from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
Enter SFO to LIS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
The best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) will differ from traveler to traveler. If you like to fly early, TP offers early morning flights. If price is the most important factor, TP typically offers the lowest fares. UA offers the most daily flights from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
There are approximately 201 connecting flights per day from San Francisco International (SFO) to Humberto Delgado (LIS). Some common connection points include John F. Kennedy International (JFK), Logan International (BOS), and Los Angeles International (LAX).
What is the earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from San Francisco International Airport (SFO) to Lisbon (LIS) typically departs at approximately 12:10 AM local time, operated by Delta. This is a seasonal service active in December. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
You'll typically find the most flights from San Francisco International Airport (SFO) to Lisbon (LIS) on a Friday, with around 118 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
The most popular departure times for flights from San Francisco International Airport (SFO) to Lisbon (LIS) are between 12pm and 3pm. About 24% of passengers prefer this time window. Many major carriers, including Air Canada, Lufthansa and TAP Air Portugal, offer flights during this window. This timing works well because it allows for a morning in San Francisco before your flight, and you'll arrive in Lisbon in the morning, ready to start your day.
How long does it take to fly from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
Flying nonstop from SFO to LIS takes around 11 hours 20 minutes, with the route covering approximately 5,669 miles. Flights with a layover typically take 6 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
Select the "Business class" and "First class" filters when looking for SFO to LIS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon from San Francisco Intl. (SFO)?
From San Francisco Intl. (SFO), you can fly into Humberto Delgado (LIS) to reach Lisbon. Some flights may connect through major hubs like Los Angeles Intl. (LAX), Dallas-Fort Worth Intl. (DFW), John F. Kennedy Intl. (JFK) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) flight and hotel package?
Securing a San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado)?
If you booked your San Francisco, CA (SFO-San Francisco Intl.) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, British Airways, Brussels Airlines, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic
Return price
£514
Distance
9070 km
Average flight time
20 hours 16 mins

Book with confidence

Compare flights from San Francisco to Lisbon easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Francisco to Lisbon. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Humberto Delgado in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Francisco Intl. to Humberto Delgado.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Francisco Intl. (SFO) to Humberto Delgado (LIS)

The easiest way to view the best deals on flights from San Francisco to Lisbon today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Francisco Intl. to Humberto Delgado start at just £514 and range up to £626.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Francisco and Lisbon
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Francisco to Lisbon flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Francisco Intl. to Humberto Delgado for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Francisco to Lisbon easily and book with confidence

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*Available to Expedia members.