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 $676, Delta can have you in San Francisco from Lisbon in 18h 56m. 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 41% less than the average price by searching for these airlines.

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

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

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 $482. On average you can expect to pay $1,126. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $567.

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 (77%), JetBlue (66%) and TAP AIR PORTUGAL (66%).

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: LEVEL, American Airlines or Air France.

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 London.

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 Philadelphia.

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

London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than anywhere else. Hyde Park, Buckingham Palace, and Piccadilly Circus can be accessed by traveling approximately 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Those looking to explore during their layover in London can rent a car from London Heathrow for about $40 per day.

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.

$425+ Cheap 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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Francisco are usually found in February or April, booked 87 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Lisbon to San Francisco

Round-trip from	$675 (British Airways)
One-way from	$425 (Kiwi.com)
Popular in	January
Cheapest in	February
Average price	$784
Good round-trip deal	$834 or less
Good one-way deal	$499 or less

From Lisbon Humberto Delgado to San Francisco

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One-way flight from Lisbon Humberto Delgado to San Francisco

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High demand for flights, 1% potential price rise

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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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

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

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Find 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 September 17, 2025.

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Tue 11/181:11 pmSFO - LIS

2 stops24h 34mBritish Airways

Deal found 9/14

$675

Thu 10/1612:45 pmLIS - SFO

1 stop18h 56mDelta

Thu 10/2312:35 pmSFO - LIS

2 stops21h 15mDelta

Deal found 9/16

$676

Wed 11/199:40 amLIS - SFO

Nonstop12h 50mTAP AIR PORTUGAL

Fri 11/287:10 pmSFO - LIS

Nonstop11h 05mTAP AIR PORTUGAL

Deal found 9/16

$678

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Sun 10/127:20 pmSFO - LIS

1 stop19h 45mBritish Airways

Deal found 9/17

$679

Wed 10/13:55 pmLIS - SFO

1 stop28h 55mAir France

Wed 10/83:05 pmSFO - LIS

1 stop15h 45mAir France

Deal found 9/16

$680

Tue 10/146:45 pmLIS - SFO

1 stop27h 05mBritish Airways

Mon 11/1712:08 pmSFO - LIS

1 stop12h 57mBritish Airways

Deal found 9/14

$681

Wed 10/156:40 pmLIS - SFO

1 stop27h 10mBritish Airways

Wed 10/226:00 amSFO - LIS

1 stop19h 05mBritish Airways

Deal found 9/17

$686

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Sun 11/2311:15 pmSFO - LIS

1 stop25h 50mBritish Airways

Deal found 9/14

$687

Fri 11/147:05 amLIS - SFO

1 stop15h 55mBritish Airways

Wed 11/195:30 pmSFO - LIS

1 stop20h 20mBritish Airways

Deal found 9/16

$688

Thu 10/99:55 amLIS - SFO

Nonstop12h 35mTAP AIR PORTUGAL

Wed 10/224:20 pmSFO - LIS

Nonstop11h 10mTAP AIR PORTUGAL

Deal found 9/15

$689

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Tue 10/149:35 pmSFO - LIS

1 stop27h 30mBritish Airways

Deal found 9/17

$691

Tue 10/219:00 amLIS - SFO

Nonstop12h 35mTAP AIR PORTUGAL

Fri 10/318:10 pmSFO - LIS

Nonstop11h 05mTAP AIR PORTUGAL

Deal found 9/17

$692

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 September 17, 2025.

Thu 10/1612:45 pmLIS - SFO

1 stop18h 56mDelta

Thu 10/2312:35 pmSFO - LIS

2 stops21h 15mDelta

Deal found 9/16

$676

Fri 10/3111:25 amLIS - SFO

1 stop32h 25mKLM

Fri 11/71:55 pmSFO - LIS

1 stop25h 15mKLM

Deal found 9/15

$686

Thu 10/97:20 amLIS - SFO

2 stops23h 10mBritish Airways

Mon 10/209:35 pmSFO - LIS

1 stop27h 30mBritish Airways

Deal found 9/16

$687

Tue 2/105:00 amLIS - SFO

1 stop18h 55mUnited Airlines

Mon 2/1612:43 amSFO - LIS

3 stops24h 37mUnited Airlines

Deal found 9/14

$695

Fri 10/3111:05 amLIS - SFO

2 stops32h 24mMultiple Airlines

Fri 11/710:16 amSFO - LIS

2 stops21h 09mMultiple Airlines

Deal found 9/15

$699

Sun 11/233:55 pmLIS - SFO

1 stop30h 40mScandinavian Airlines

Sat 11/294:40 pmSFO - LIS

1 stop32h 15mScandinavian Airlines

Deal found 9/16

$726

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Mon 10/209:35 pmSFO - LIS

1 stop27h 30mBritish Airways

Deal found 9/16

$687

Wed 10/85:05 amLIS - SFO

1 stop15h 35mUnited Airlines

Thu 11/209:05 amSFO - LIS

2 stops16h 15mUnited Airlines

Deal found 9/14

$695

Tue 9/3011:40 amLIS - SFO

2 stops20h 41mDelta

Tue 10/79:55 amSFO - LIS

2 stops20h 55mDelta

Deal found 9/17

$705

Mon 11/103:30 pmLIS - SFO

1 stop28h 20mMultiple Airlines

Thu 11/277:20 amSFO - LIS

2 stops16h 40mMultiple Airlines

Deal found 9/16

$708

Tue 10/145:40 amLIS - SFO

2 stops20h 05mDelta

Tue 10/217:00 amSFO - LIS

2 stops20h 15mDelta

Deal found 9/14

$706

Sun 12/145:00 amLIS - SFO

2 stops21h 05mDelta

Sun 12/2810:23 amSFO - LIS

2 stops23h 07mDelta

Deal found 9/15

$712

Last-minute flights from Lisbon to San Francisco
Discover last-minute flight deals from Lisbon to San Francisco. Data last updated September 17, 2025 and is based on user searches.

Tue 9/237:15 amLIS - SFO

2 stops24h 44mBritish Airways

Sun 9/284:37 pmSFO - LIS

2 stops22h 28mBritish Airways

Deal found 9/15

$693

Wed 10/13:55 pmLIS - SFO

1 stop28h 55mAir France

Wed 10/83:05 pmSFO - LIS

1 stop15h 45mAir France

Deal found 9/16

$680

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Tue 11/181:11 pmSFO - LIS

2 stops24h 34mBritish Airways

Deal found 9/14

$675

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Sun 10/127:20 pmSFO - LIS

1 stop19h 45mBritish Airways

Deal found 9/17

$679

Wed 10/87:20 amLIS - SFO

2 stops24h 08mBritish Airways

Sat 10/119:45 pmSFO - LIS

1 stop27h 20mBritish Airways

Deal found 9/17

$691

Wed 10/85:05 amLIS - SFO

1 stop15h 35mUnited Airlines

Tue 10/1411:40 amSFO - LIS

1 stop13h 40mUnited Airlines

Deal found 9/15

$694

Thu 10/99:55 amLIS - SFO

Nonstop12h 35mTAP AIR PORTUGAL

Wed 10/224:20 pmSFO - LIS

Nonstop11h 10mTAP AIR PORTUGAL

Deal found 9/15

$689

Tue 10/146:45 pmLIS - SFO

1 stop27h 05mBritish Airways

Mon 11/1712:08 pmSFO - LIS

1 stop12h 57mBritish Airways

Deal found 9/14

$681

Wed 10/156:40 pmLIS - SFO

1 stop27h 10mBritish Airways

Wed 10/226:00 amSFO - LIS

1 stop19h 05mBritish Airways

Deal found 9/17

$686

Thu 10/1612:45 pmLIS - SFO

1 stop18h 56mDelta

Thu 10/233:05 pmSFO - LIS

1 stop18h 45mDelta

Deal found 9/16

$676

Tue 10/219:00 amLIS - SFO

Nonstop12h 35mTAP AIR PORTUGAL

Fri 10/318:10 pmSFO - LIS

Nonstop11h 05mTAP AIR PORTUGAL

Deal found 9/17

$692

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 September 17, 2025.

Wed 10/152:10 pmLIS - SFO

3 stops39h 43mMultiple Airlines

Deal found 9/15

$425

Thu 10/239:10 amLIS - SFO

2 stops46h 55mMultiple Airlines

Deal found 9/14

$432

Sun 10/55:55 amLIS - SFO

3 stops35h 35mMultiple Airlines

Deal found 9/15

$443

Sat 10/45:25 pmLIS - SFO

2 stops50h 29mMultiple Airlines

Deal found 9/15

$444

Sat 11/227:00 pmLIS - SFO

1 stop33h 10mMultiple Airlines

Deal found 9/16

$445

Mon 11/39:05 pmLIS - SFO

3 stops48h 45mMultiple Airlines

Deal found 9/15

$447

Thu 10/23:00 pmLIS - SFO

3 stops38h 24mMultiple Airlines

Deal found 9/14

$452

Tue 11/257:00 pmLIS - SFO

1 stop33h 10mMultiple Airlines

Deal found 9/15

$454

Thu 10/95:55 amLIS - SFO

3 stops46h 33mMultiple Airlines

Deal found 9/16

$455

Thu 10/169:10 amLIS - SFO

2 stops46h 55mMultiple Airlines

Deal found 9/16

$456

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

Thu 10/16

12:45 pm-11:41 pm

1 stop18h 56m

San Francisco

Thu 10/23

12:35 pm-5:50 pm

2 stops21h 15m

$676

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 10/31

11:25 am-12:50 pm

1 stop32h 25m

San Francisco

Fri 11/7

1:55 pm-11:10 pm

1 stop25h 15m

$686

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 10/9

7:20 am-10:30 pm

2 stops23h 10m

San Francisco

Mon 10/20

9:35 pm-9:05 am

1 stop27h 30m

$687

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/8

7:20 am-11:28 pm

2 stops24h 08m

San Francisco

Mon 10/20

9:35 pm-9:05 am

1 stop27h 30m

$687

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 2/10

5:00 am-3:55 pm

1 stop18h 55m

San Francisco

Mon 2/16

12:43 am-9:20 am

3 stops24h 37m

$695

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/8

5:05 am-12:40 pm

1 stop15h 35m

San Francisco

Thu 11/20

9:05 am-9:20 am

2 stops16h 15m

$695

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 10/31

11:05 am-12:29 pm

2 stops32h 24m

San Francisco

Fri 11/7

10:16 am-3:25 pm

2 stops21h 09m

$699

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 9/30

11:40 am-12:21 am

2 stops20h 41m

San Francisco

Tue 10/7

9:55 am-2:50 pm

2 stops20h 55m

$705

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 10/14

5:40 am-5:45 pm

2 stops20h 05m

San Francisco

Tue 10/21

7:00 am-11:15 am

2 stops20h 15m

$706

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Mon 11/10

3:30 pm-11:50 am

1 stop28h 20m

San Francisco

Thu 11/27

7:20 am-8:00 am

2 stops16h 40m

$708

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results

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

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

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 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.

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

Currently, January is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of $276). Flying from Lisbon to San Francisco in June is currently the most expensive (average of $357). 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 36% versus a flight at noon.

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

8.0

Very good

7,961 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

8.0

Very good

7,961 reviews

Delta

8.0

Very good

7,961 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

8,926 reviews

Delta

8.0

Very good

7,961 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

1,977 reviews

Delta

8.0

Very good

7,961 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

7,409 reviews

Delta

8.0

Very good

7,961 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

7,367 reviews

Delta

8.0

Very good

7,961 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 $676, Delta can have you in San Francisco from Lisbon in 18h 56m. 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 41% less than the average price by searching for these airlines.
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 (77%), JetBlue (66%) and TAP AIR PORTUGAL (66%).
What are the cheapest flights from Lisbon to San Francisco?
The cheapest flight price from Lisbon to San Francisco is $482. On average you can expect to pay $1,126. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $567.
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 London.
What are some popular things to do or see while on a layover in London?
London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than anywhere else. Hyde Park, Buckingham Palace, and Piccadilly Circus can be accessed by traveling approximately 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Those looking to explore during their layover in London can rent a car from London Heathrow for about $40 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 Philadelphia.
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, January is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of $276). Flying from Lisbon to San Francisco in June is currently the most expensive (average of $357). 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

Santa Cruz

Livermore

South San Francisco

Turlock

Antioch

Watsonville

Santa Clara

Manteca

Sunnyvale

Hollister

Vacaville

Foster City

Union City

Vallejo

Burlingame

Redwood City

San Mateo

San Leandro

Lathrop

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$738	FlexibilityNo cancel fee	On-timeN/A
TAP AIR PORTUGAL	Cheapest$604	Average$892	FlexibilityNo cancel fee	On-timeN/A
Air France	Cheapest$657	Average$822	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$659	Average$792	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$708	Average$764	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$731	Average$886	FlexibilityNo cancel fee	On-time69%

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$425+ 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 10/15. 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 April, booked 87 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Lisbon to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 September 17, 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 September 17, 2025.

Cheapflights Fare Finder

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

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

SFO

Our travel experts

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?

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 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 London?

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?

Traveling to a place near 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 September 17, 2025.