How often are flights from Lisbon to San Francisco delayed?

About 11% of weekly flights between Lisbon and San Francisco have experienced delays in the past year, with the average delay time being 131 minutes.

Which airline has the best punctuality record on Lisbon to San Francisco flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 11% of flights being delayed.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

What is the most punctual flight time for Lisbon to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

How popular is this Lisbon to San Francisco flight route?

Flights from Lisbon Humberto Delgado to San Francisco have been viewed 1 times in the past calendar month.

How long is the flight from Lisbon to San Francisco?

For as low as $748, Scandinavian Airlines can have you in San Francisco from Lisbon in 18h 55m. Airlines will cover a distance of 5664 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from Lisbon to San Francisco is LEVEL. Our recent data shows that you can find tickets from as low as $473 on this airline. Additional options worth looking into are British Airways and Delta, starting at $572 and $587 round-trip. You may be able to fly from Lisbon to San Francisco for 42% less than the average price by searching for these airlines.

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

$317 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on Iberia and Vueling, with prices starting from $338 and $348, respectively.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What are the cheapest flights from Lisbon to San Francisco?

The cheapest flight price from Lisbon to San Francisco is $710. On average you can expect to pay $1,018. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $626.

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

The top 3 most reliable airlines when flying from Lisbon to San Francisco are Etihad Airways (56%), JetBlue (54%) and TAP AIR PORTUGAL (54%).

What are the most popular airlines that fly from Lisbon to San Francisco?

Before booking your flight from Lisbon to San Francisco check out the most popular airlines for this route: TAP AIR PORTUGAL, British Airways or Delta.

Where are the most common layover locations when flying from Lisbon to San Francisco?

The most popular layover on flights from Lisbon to San Francisco is Philadelphia.

Where are the least popular layover locations for Lisbon to San Francisco flights?

Lisbon to San Francisco flights that have layovers will least frequently stop in London.

What are some popular things to do or see while on a layover in Philadelphia?

Philadelphia travelers tend to visit Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park more than anywhere else. Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park can be accessed by traveling approximately 6.1 mi, 5.7 mi, and 4.3 mi, respectively from Philadelphia. Those looking to explore during their layover in Philadelphia can rent a car from Philadelphia for about $53 per day.

Most accurate provider : When it comes to deals on Lisbon-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Lisbon-San Francisco flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Lisbon-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lisbon-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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.

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

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.

$577+ Flights from Lisbon to San Francisco

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Francisco are usually found in February or May, booked 75 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Lisbon to San Francisco

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 December 9, 2025.

Tue 12/165:30 amLIS - SFO

1 stop15h 55mAir France

Sat 1/243:40 pmSFO - LIS

1 stop15h 30mAir France

Deal found 12/7

$742

Wed 12/245:00 amLIS - SFO

1 stop18h 55mLufthansa

Sun 12/289:40 pmSFO - LIS

1 stop17h 50mLufthansa

Deal found 12/8

$748

Tue 12/166:10 amLIS - SFO

1 stop16h 40mUnited Airlines

Mon 12/2212:55 pmSFO - LIS

1 stop13h 20mUnited Airlines

Deal found 12/9

$759

Tue 12/165:30 amLIS - SFO

1 stop15h 55mDelta

Sat 1/249:50 amSFO - LIS

2 stops17h 30mDelta

Deal found 12/7

$760

Tue 12/1611:20 amLIS - SFO

2 stops30h 09mAir Canada

Sat 1/247:30 amSFO - LIS

2 stops17h 25mAir Canada

Deal found 12/7

$763

Wed 12/1711:00 amLIS - SFO

1 stop18h 39mMultiple Airlines

Mon 1/127:25 pmSFO - LIS

1 stop35h 10mMultiple Airlines

Deal found 12/7

$787

Sun 12/1411:05 amLIS - SFO

1 stop19h 23mBritish Airways

Sun 12/288:40 pmSFO - LIS

1 stop29h 10mBritish Airways

Deal found 12/7

$789

Wed 12/243:25 pmLIS - SFO

2 stops29h 55mSWISS

Sun 12/287:25 pmSFO - LIS

1 stop35h 10mSWISS

Deal found 12/8

$791

Fri 12/265:00 amLIS - SFO

1 stop23h 10mUnited Airlines

Sat 1/35:15 amSFO - LIS

2 stops21h 00mUnited Airlines

Deal found 12/8

$799

Sun 12/1411:25 amLIS - SFO

1 stop32h 25mKLM

Sun 12/281:55 pmSFO - LIS

1 stop25h 15mKLM

Deal found 12/9

$803

Best flights from Lisbon to San Francisco
Discover carefully curated flight deals from Lisbon to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 9, 2025.

Fri 1/304:40 pmLIS - SFO

1 stop29h 55mScandinavian Airlines

Fri 2/64:40 pmSFO - LIS

2 stops21h 20mScandinavian Airlines

Deal found 12/7

$717

Wed 1/217:00 pmLIS - SFO

2 stops35h 54mMultiple Airlines

Wed 1/287:00 amSFO - LIS

2 stops30h 35mMultiple Airlines

Deal found 12/7

$725

Thu 1/225:00 amLIS - SFO

1 stop18h 55mUnited Airlines

Thu 1/295:00 amSFO - LIS

2 stops19h 10mUnited Airlines

Deal found 12/7

$748

Sat 1/2412:20 pmLIS - SFO

1 stop15h 50mLufthansa

Tue 2/177:00 amSFO - LIS

1 stop17h 10mLufthansa

Deal found 12/8

$748

Wed 1/215:00 amLIS - SFO

1 stop18h 55mUnited Airlines

Wed 1/287:25 amSFO - LIS

2 stops16h 45mUnited Airlines

Deal found 12/7

$748

Sun 1/255:00 amLIS - SFO

1 stop23h 10mUnited Airlines

Tue 2/178:30 amSFO - LIS

1 stop15h 40mUnited Airlines

Deal found 12/8

$748

Thu 1/225:00 amLIS - SFO

1 stop15h 40mUnited Airlines

Mon 1/268:30 amSFO - LIS

1 stop15h 40mUnited Airlines

Deal found 12/6

$748

Last-minute flights from Lisbon to San Francisco
Discover last-minute flight deals from Lisbon to San Francisco. Data last updated December 9, 2025 and is based on user searches.

Wed 1/144:55 pmLIS - SFO

1 stop29h 40mMultiple Airlines

Mon 1/194:40 pmSFO - LIS

1 stop20h 50mMultiple Airlines

Deal found 12/7

$684

Wed 1/144:55 pmLIS - SFO

1 stop29h 40mScandinavian Airlines

Mon 1/194:40 pmSFO - LIS

2 stops45h 10mScandinavian Airlines

Deal found 12/7

$691

Wed 1/144:55 pmLIS - SFO

1 stop29h 40mMultiple Airlines

Sun 1/184:40 pmSFO - LIS

2 stops21h 20mMultiple Airlines

Deal found 12/8

$700

Wed 1/146:40 amLIS - SFO

1 stop16h 55mMultiple Airlines

Wed 1/215:20 pmSFO - LIS

1 stop15h 25mMultiple Airlines

Deal found 12/7

$701

Fri 1/164:40 pmLIS - SFO

1 stop29h 55mMultiple Airlines

Fri 1/304:40 pmSFO - LIS

1 stop32h 15mMultiple Airlines

Deal found 12/7

$672

Wed 1/214:55 pmLIS - SFO

1 stop29h 40mScandinavian Airlines

Fri 2/204:40 pmSFO - LIS

1 stop32h 15mScandinavian Airlines

Deal found 12/8

$696

Thu 1/226:55 pmLIS - SFO

2 stops33h 34mMultiple Airlines

Thu 1/293:10 pmSFO - LIS

1 stop16h 40mMultiple Airlines

Deal found 12/8

$708

Fri 1/2311:15 amLIS - SFO

Nonstop12h 50mTAP AIR PORTUGAL

Fri 1/307:10 pmSFO - LIS

Nonstop11h 05mTAP AIR PORTUGAL

Deal found 12/9

$703

Sun 1/254:55 pmLIS - SFO

1 stop29h 40mScandinavian Airlines

Wed 2/181:08 pmSFO - LIS

2 stops35h 47mScandinavian Airlines

Deal found 12/8

$673

Sun 1/254:55 pmLIS - SFO

1 stop29h 40mScandinavian Airlines

Mon 2/164:40 pmSFO - LIS

2 stops39h 45mScandinavian Airlines

Deal found 12/8

$677

Sun 1/254:55 pmLIS - SFO

1 stop29h 40mScandinavian Airlines

Fri 2/204:40 pmSFO - LIS

1 stop32h 15mScandinavian Airlines

Deal found 12/8

$714

Fri 1/304:40 pmLIS - SFO

1 stop29h 55mScandinavian Airlines

Fri 2/64:40 pmSFO - LIS

2 stops21h 20mScandinavian Airlines

Deal found 12/7

$717

One-way flights from Lisbon to San Francisco
Search for one-way flight options from Lisbon to San Francisco. Find affordable one-way fares based on user searches. Data last updated December 9, 2025.

Sun 3/111:35 amLIS - SFO

3 stops28h 14mMultiple Airlines

Deal found 12/8

$577

Wed 1/76:00 amLIS - SFO

3 stops39h 18mMultiple Airlines

Deal found 12/9

$584

Thu 1/88:55 amLIS - SFO

3 stops36h 23mMultiple Airlines

Deal found 12/9

$601

Sun 1/118:50 pmLIS - SFO

2 stops57h 50mMultiple Airlines

Deal found 12/8

$606

Mon 12/152:05 pmLIS - SFO

3 stops30h 35mMultiple Airlines

Deal found 12/9

$609

Tue 1/65:40 pmLIS - SFO

2 stops48h 00mMultiple Airlines

Deal found 12/9

$617

Sat 12/2010:50 amLIS - SFO

1 stop37h 45mAer Lingus

Deal found 12/8

$629

Sat 2/286:10 amLIS - SFO

3 stops24h 46mMultiple Airlines

Deal found 12/8

$644

Find flight deals from Lisbon to San Francisco

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$664 (Iberia)
One-way from	$577 (Kiwi.com)
Popular in	January
Cheapest in	February
Average price	$826
Good round-trip deal	$884 or less
Good one-way deal	$852 or less

Provider with most accurate pricing for Lisbon Humberto Delgado-San Francisco flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-San Francisco flights.

Search Deals

From Lisbon Humberto Delgado to San Francisco

Search Deals

One-way flight from Lisbon Humberto Delgado to San Francisco

Search Deals

High demand for flights, 3% potential price rise

Search Deals

Cheapest flight prices on average. 0% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Lisbon Humberto Delgado to San Francisco.

Search Deals

Price to beat on a one-way flight from Lisbon Humberto Delgado to San Francisco.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 1/30

4:40 pm-2:35 pm

1 stop29h 55m

San Francisco

Fri 2/6

4:40 pm-10:00 pm

2 stops21h 20m

$717

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 1/21

7:00 pm-10:54 pm

2 stops35h 54m

San Francisco

Wed 1/28

7:00 am-9:35 pm

2 stops30h 35m

$725

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 1/22

5:00 am-3:55 pm

1 stop18h 55m

San Francisco

Thu 1/29

5:00 am-8:10 am

2 stops19h 10m

$748

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 1/24

12:20 pm-8:10 pm

1 stop15h 50m

San Francisco

Tue 2/17

7:00 am-8:10 am

1 stop17h 10m

$748

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 1/21

5:00 am-3:55 pm

1 stop18h 55m

San Francisco

Wed 1/28

7:25 am-8:10 am

2 stops16h 45m

$748

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sun 1/25

5:00 am-8:10 pm

1 stop23h 10m

San Francisco

Tue 2/17

8:30 am-8:10 am

1 stop15h 40m

$748

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 1/22

5:00 am-12:40 pm

1 stop15h 40m

San Francisco

Mon 1/26

8:30 am-8:10 am

1 stop15h 40m

$748

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sun 1/11

8:50 pm-10:40 pm

2 stops57h 50m

$606

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 1/6

5:40 pm-9:40 am

2 stops48h 00m

$617

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 12/20

10:50 am-4:35 pm

1 stop37h 45m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 18 results

Compare providers for flights from Lisbon to San Francisco

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lisbon to San Francisco in December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Expedia	Price Accuracy2 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Lisbon-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Lisbon-San Francisco flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Lisbon-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lisbon-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

Prices

Delays

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

To ensure you get the cheapest price possible for a flight from Lisbon to San Francisco, you should look to book at least 75 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.

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

Currently, February is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of $559). Flying from Lisbon to San Francisco in August is currently the most expensive (average of $675). 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.

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

When flying from Lisbon to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 53% versus a flight at noon.

The best insider tips for Lisbon to San Francisco flights

Cheapflights partnered with top experts to bring you the best recommendations for your Lisbon to San Francisco trip

Airports

LIS

Expect long lines at immigration for non-Schengen flights, especially during morning and early afternoon departures.

SFO

Use BART for an affordable 40-minute trip from SFO to downtown San Francisco. Purchase a Clipper Card for easy fare payment.

Our travel experts

Ramsey Qubein

Expert on LIS

Harriet Baskas

Expert on SFO

Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from Lisbon to San Francisco, such as Delta, United Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

7.9

Good

8,011 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

9,089 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

TAP AIR PORTUGAL

7.1

Good

2,085 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Lufthansa

6.8

Okay

7,618 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

British Airways

6.7

Okay

7,571 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

How popular is this Lisbon to San Francisco flight route?
Flights from Lisbon Humberto Delgado to San Francisco have been viewed 1 times in the past calendar month.
How long is the flight from Lisbon to San Francisco?
For as low as $748, Scandinavian Airlines can have you in San Francisco from Lisbon in 18h 55m. Airlines will cover a distance of 5664 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Lisbon to San Francisco round-trip?
Our cheapest airline available from Lisbon to San Francisco is LEVEL. Our recent data shows that you can find tickets from as low as $473 on this airline. Additional options worth looking into are British Airways and Delta, starting at $572 and $587 round-trip. You may be able to fly from Lisbon to San Francisco for 42% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Lisbon to San Francisco one-way?
$317 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on Iberia and Vueling, with prices starting from $338 and $348, respectively.
What are the most reliable airlines from Lisbon to San Francisco?
The top 3 most reliable airlines when flying from Lisbon to San Francisco are Etihad Airways (56%), JetBlue (54%) and TAP AIR PORTUGAL (54%).
What are the cheapest flights from Lisbon to San Francisco?
The cheapest flight price from Lisbon to San Francisco is $710. On average you can expect to pay $1,018. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $626.
Where are the most common layover locations when flying from Lisbon to San Francisco?
The most popular layover on flights from Lisbon to San Francisco is Philadelphia.
What are some popular things to do or see while on a layover in Philadelphia?
Philadelphia travelers tend to visit Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park more than anywhere else. Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park can be accessed by traveling approximately 6.1 mi, 5.7 mi, and 4.3 mi, respectively from Philadelphia. Those looking to explore during their layover in Philadelphia can rent a car from Philadelphia for about $53 per day.
Where are the least popular layover locations for Lisbon to San Francisco flights?
Lisbon to San Francisco flights that have layovers will least frequently stop in London.
Can I find deals for flights from Lisbon to San Francisco that include hotel bookings?
Yes. In addition to deals on Lisbon to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lisbon to San Francisco?
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.
Can I find deals for business class flights from Lisbon to San Francisco?
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.
What is the cheapest month to book a flight from Lisbon to San Francisco?
Currently, February is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of $559). Flying from Lisbon to San Francisco in August is currently the most expensive (average of $675). 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.

See more FAQs

Roseville

South San Francisco

Santa Cruz

Livermore

Turlock

Manteca

Watsonville

Sunnyvale

Santa Clara

San Bruno

Redwood City

Daly City

Vallejo

Hollister

Foster City

Union City

Davis

San Ramon

Burlingame

Milpitas

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Lisbon to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
LEVEL	Cheapest$473	Average$623	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$572	Average$717	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$587	Average$759	FlexibilityNo cancel fee	On-timeN/A
TAP AIR PORTUGAL	Cheapest$604	Average$873	FlexibilityNo cancel fee	On-timeN/A
Air France	Cheapest$657	Average$829	FlexibilityNo cancel fee	On-time77%
American Airlines	Cheapest$708	Average$934	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$732	Average$915	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$741	Average$837	FlexibilityNo cancel fee	On-time76%

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$577+ Cheap flights from Lisbon (LIS) to San Francisco (SFO)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lisbon to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Francisco are usually found in February or May, booked 75 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 December 9, 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 December 9, 2025.

Find flight deals from Lisbon to San Francisco

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Compare providers for flights from Lisbon to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lisbon to San Francisco in December.

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?

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?

How often are flights from Lisbon to San Francisco delayed?

What is the most punctual flight time for Lisbon to San Francisco flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Lisbon to San Francisco flights?

The best insider tips for Lisbon to San Francisco flights

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Cheapflights partnered with top experts to bring you the best recommendations for your Lisbon to San Francisco trip

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Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from Lisbon to San Francisco, such as Delta, United Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's 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?

How long is the flight from Lisbon to San Francisco?

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?

What are the cheapest flights from Lisbon to San Francisco?

Where are the most common layover locations when flying from Lisbon to San Francisco?

What are some popular things to do or see while on a layover in Philadelphia?

Where are the least popular layover locations for Lisbon to San Francisco flights?

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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Alternative routes for Lisbon to San Francisco

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Top 8 airlines flying from Lisbon to San Francisco

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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 December 9, 2025.