$283 Cheap Flights from San Francisco (SFO) to Lisbon (LIS)

View $283 flight on Sun, Aug 24, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $283 for one-way flights and $493 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LEVEL
Tue, Sep 16 - Mon, Sep 22
SFO
San Francisco
LIS
Lisbon
$493 Roundtrip, found 3 hours ago
$493
Roundtrip
found 3 hours ago
Select LEVEL flight, departing Tue, Sep 16 from San Francisco to Lisbon, returning Mon, Sep 22, priced at $493 found 3 hours ago
Scandinavian Airlines
Sun, Nov 9 - Fri, Nov 21
SFO
San Francisco
LIS
Lisbon
$501 Roundtrip, found 3 days ago
$501
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Sun, Nov 9 from San Francisco to Lisbon, returning Fri, Nov 21, priced at $501 found 3 days ago
Air Canada
Mon, Mar 16 - Thu, Apr 2
SFO
San Francisco
LIS
Lisbon
$558 Roundtrip, found 2 days ago
$558
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Mar 16 from San Francisco to Lisbon, returning Thu, Apr 2, priced at $558 found 2 days ago
United
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
LIS
Lisbon
$558 Roundtrip, just found
$558
Roundtrip
just found
Select United flight, departing Tue, Mar 3 from San Francisco to Lisbon, returning Tue, Mar 10, priced at $558 just found
American Airlines
Mon, Jan 12 - Mon, Jan 19
SFO
San Francisco
LIS
Lisbon
$576 Roundtrip, found 5 hours ago
$576
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Mon, Jan 12 from San Francisco to Lisbon, returning Mon, Jan 19, priced at $576 found 5 hours ago
British Airways
Tue, Jan 13 - Fri, Jan 23
SFO
San Francisco
LIS
Lisbon
$577 Roundtrip, found 1 hour ago
$577
Roundtrip
found 1 hour ago
Select British Airways flight, departing Tue, Jan 13 from San Francisco to Lisbon, returning Fri, Jan 23, priced at $577 found 1 hour ago
Virgin Atlantic
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
LIS
Lisbon
$579 Roundtrip, just found
$579
Roundtrip
just found
Select Virgin Atlantic flight, departing Tue, Mar 3 from San Francisco to Lisbon, returning Tue, Mar 10, priced at $579 just found
Delta
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
LIS
Lisbon
$579 Roundtrip, just found
$579
Roundtrip
just found
Select Delta flight, departing Tue, Mar 3 from San Francisco to Lisbon, returning Tue, Mar 10, priced at $579 just found
Lufthansa
Wed, Nov 19 - Wed, Nov 26
SFO
San Francisco
LIS
Lisbon
$580 Roundtrip, just found
$580
Roundtrip
just found
Select Lufthansa flight, departing Wed, Nov 19 from San Francisco to Lisbon, returning Wed, Nov 26, priced at $580 just found
Swiss International Air Lines
Mon, Nov 24 - Tue, Dec 2
SFO
San Francisco
LIS
Lisbon
$585 Roundtrip, just found
$585
Roundtrip
just found
Select Swiss International Air Lines flight, departing Mon, Nov 24 from San Francisco to Lisbon, returning Tue, Dec 2, priced at $585 just found

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

February is typically the cheapest month to fly

From $492 - $999 per traveler.

Graph displaying average flight prices per month

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 $755
LIS
Humberto Delgado
Cheapest
Flights from $755
Flights from San Francisco (SFO) to Lisbon (LIS)
Origin airport
San Francisco Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$479
Distance
5668 mi

San Francisco to Lisbon Flights

The cheapest times to fly from San Francisco to Lisbon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Lisbon are during the month of September. You can find some of the cheapest flights from San Francisco to Lisbon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Lisbon

Sunday is one of the best days to book for cheap flights from San Francisco to Lisbon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Lisbon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Lisbon in 2025. You can also book with separate airlines for your outbound and return journeys, from $283 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Lisbon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Lisbon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS) cost?
Cheap round-trip flights from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS) start from $637. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a TAP Portugal flight leaving SFO on July 28 2025 and touching down at LIS. The price was last updated on July 7 2025 and has not changed since.
What is the cheapest month to fly from SFO to LIS?
The cheapest flights from SFO to LIS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
You can fly directly from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS) on a TAP Portugal flight.
What is the cheapest airline that flies from SFO to LIS?
With prices as low as $329 for a one-way journey from SFO to LIS, TAP Portugal is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on August 6 2025. Prices were last updated on July 7 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
On average, you can choose from 3 direct flights each week from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS). For more options, consider a flight with a layover. Just enter your details on Expedia and then filter your search to show one or two stops.
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
More passengers fly between SFO and LIS at 4 PM than at any other time of day. Prefer a quieter experience? Travel outside of rush hours and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from SFO to LIS?
If you jet off on a Saturday, you'll get the widest range of options for flights from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS).
What is the earliest flight from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
The first flight of the day leaving from San Francisco Intl. Airport (SFO) is at around 4:40PM UTC-8. Board this plane and you'll land at Humberto Delgado Airport (LIS) at approximately 11:35AM UTC+0. The total time in the air is 10h 55m.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
Flights from SFO to LIS have an average travel time of 10 hours and 55 minutes. The distance between the two airports is 5,700 mi.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
Book a flight from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS) that takes off before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Lisbon District from San Francisco Intl. Airport (SFO)?
If you're taking a direct flight from San Francisco Intl. Airport (SFO) to Lisbon District, Humberto Delgado Airport (LIS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Humberto Delgado Airport (LIS) last-minute?
Last-minute fares from SFO to LIS are generally more expensive. For the cheapest rates, start searching for flights well in advance. That being said, if you're flexible with your travel dates, you may find a cheap ticket right before your journey.
Is it cheaper to book a SFO to LIS flight and hotel package?
Securing a SFO to LIS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our wide range of hotels 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 Intl. Airport (SFO) to Humberto Delgado Airport (LIS)?
Usually, it's possible to cancel or reschedule your SFO to LIS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.