How popular is this Portugal to San Francisco flight route?

This flight path from Portugal to San Francisco was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $452. Iberia flights start at $456 while deals on Aer Lingus start at $533 one-way.

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

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

What are the most popular routes from Portugal to San Francisco?

The most popular flight routes from Portugal to San Francisco are Lisbon Humberto Delgado - San Francisco, Porto - San Francisco and Funchal Madeira - San Francisco.

What are the cheapest flights from Portugal to San Francisco?

While on average a flight from Portugal to San Francisco is generally $1,833, our data shows the cheapest flight currently is $453. When looking at the most popular route, (Lisbon Humberto Delgado - San Francisco), you can expect to pay $621 for that flight.

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

No one likes to see their flight delayed. When booking a flight from Portugal to San Francisco consider choosing Etihad Airways (77%), JetBlue (75%) or TAP AIR PORTUGAL (64%) as they are the most reliable in getting you off to your destination on time.

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

When booking a flight from Portugal to San Francisco, you may want to consider flying on LEVEL, American Airlines or British Airways as they are the most popular for this route.

What is the cheapest day to fly round-trip from Portugal to San Francisco?

Travelers have found that booking a Monday departure is the best way to save up to 34% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Travelers have found it’s best to book a flight 56 days in advance to save up to 41% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 56 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portugal to San Francisco 1-2 weeks in advance for as low as $627, or $875 for flights within the next 24 hours.

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

Flights from Portugal to San Francisco lean towards being more expensive in July. Prices are generally better when you fly from Portugal to San Francisco in February, with the cheapest ticket starting at $554.

What airport do you fly into for flights to San Francisco from Portugal?

For a flight from Portugal to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Portugal 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.

$719+ Flights from Portugal to San Francisco

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Portugal to San Francisco with Cheapflights

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.

Cheap flight deals from Portugal to San Francisco

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$609 (Travelis)
One-way from	$333 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$830
Good round-trip deal	$860 or less
Good one-way deal	$554 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 Portugal to San Francisco

Search Deals

One-way flight from Portugal to San Francisco

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($147 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Portugal to San Francisco.

Search Deals

Price to beat on a one-way flight from Portugal to San Francisco.

Search Deals

Find flight deals from Portugal to San Francisco

Cheapest flights from Portugal to San Francisco
Explore the most affordable flight options available from Portugal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Thu 5/226:30 amOPO - SFO

1 stop37h 15mKLM

Thu 5/293:05 pmSFO - OPO

1 stop16h 25mKLM

Deal found 3/27

$609

Thu 5/88:15 amOPO - SFO

1 stop15h 55mBritish Airways

Thu 5/153:50 pmSFO - OPO

2 stops20h 30mBritish Airways

Deal found 3/27

$616

Thu 5/15:00 amLIS - SFO

1 stop14h 45mDelta

Tue 5/131:45 pmSFO - LIS

2 stops20h 05mDelta

Deal found 3/27

$620

Fri 5/95:00 amLIS - SFO

1 stop14h 45mMultiple Airlines

Mon 5/128:25 pmSFO - LIS

1 stop18h 00mMultiple Airlines

Deal found 3/27

$622

Thu 5/16:35 amLIS - SFO

1 stop17h 35mAmerican Airlines

Thu 5/157:30 pmSFO - LIS

1 stop19h 30mAmerican Airlines

Deal found 3/27

$629

Mon 4/284:20 pmOPO - SFO

2 stops27h 25mAir France

Mon 5/58:45 pmSFO - OPO

1 stop34h 45mAir France

Deal found 3/27

$633

Thu 4/1011:05 amLIS - SFO

1 stop19h 31mBritish Airways

Tue 4/157:30 pmSFO - LIS

1 stop19h 30mBritish Airways

Deal found 3/27

$637

Mon 4/146:35 amOPO - SFO

2 stops24h 08mDelta

Mon 4/283:05 pmSFO - OPO

1 stop16h 25mDelta

Deal found 3/27

$639

Sun 9/1411:20 amOPO - SFO

1 stop16h 16mAir Canada

Sun 9/2111:45 pmSFO - OPO

1 stop25h 50mAir Canada

Deal found 3/27

$641

Thu 5/228:15 amOPO - SFO

1 stop15h 55mMultiple Airlines

Thu 5/295:45 pmSFO - OPO

1 stop14h 10mMultiple Airlines

Deal found 3/27

$654

Mon 6/166:35 amLIS - SFO

2 stops44h 14mFinnair

Mon 6/2311:15 amSFO - LIS

2 stops27h 55mFinnair

Deal found 3/27

$657

Thu 9/412:20 pmOPO - SFO

2 stops19h 56mAmerican Airlines

Thu 9/115:45 pmSFO - OPO

1 stop29h 50mAmerican Airlines

Deal found 3/27

$659

Best flights from Portugal to San Francisco
Discover carefully curated flight deals from Portugal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Thu 5/226:30 amOPO - SFO

1 stop37h 15mKLM

Thu 5/293:05 pmSFO - OPO

1 stop16h 25mKLM

Deal found 3/27

$609

Thu 5/88:15 amOPO - SFO

1 stop15h 55mBritish Airways

Thu 5/153:50 pmSFO - OPO

2 stops20h 30mBritish Airways

Deal found 3/27

$616

Thu 5/15:00 amLIS - SFO

1 stop14h 45mDelta

Thu 5/151:45 pmSFO - LIS

2 stops20h 05mDelta

Deal found 3/27

$620

Wed 4/1611:40 amLIS - SFO

1 stop32h 05mMultiple Airlines

Mon 4/283:05 pmSFO - LIS

1 stop15h 45mMultiple Airlines

Deal found 3/26

$622

Thu 5/16:35 amLIS - SFO

1 stop17h 35mAmerican Airlines

Thu 5/157:30 pmSFO - LIS

1 stop19h 30mAmerican Airlines

Deal found 3/27

$629

Mon 4/284:20 pmOPO - SFO

2 stops27h 25mAir France

Mon 5/58:45 pmSFO - OPO

1 stop34h 45mAir France

Deal found 3/27

$633

Sun 9/1411:20 amOPO - SFO

1 stop16h 16mAir Canada

Sun 9/2111:45 pmSFO - OPO

1 stop25h 50mAir Canada

Deal found 3/27

$641

Mon 6/166:35 amLIS - SFO

2 stops44h 14mFinnair

Mon 6/2311:15 amSFO - LIS

2 stops27h 55mFinnair

Deal found 3/27

$657

Thu 5/88:15 amOPO - SFO

1 stop15h 55mIberia

Thu 5/155:45 pmSFO - OPO

1 stop29h 50mIberia

Deal found 3/27

$661

Thu 9/412:10 pmOPO - SFO

1 stop15h 26mUnited Airlines

Thu 9/115:00 amSFO - OPO

2 stops18h 05mUnited Airlines

Deal found 3/27

$680

Tue 4/85:05 amLIS - SFO

1 stop15h 35mLufthansa

Tue 4/229:05 pmSFO - LIS

1 stop16h 45mLufthansa

Deal found 3/26

$699

Thu 4/105:55 amLIS - SFO

1 stop18h 15mSWISS

Mon 4/217:30 pmSFO - LIS

1 stop19h 50mSWISS

Deal found 3/26

$702

Last-minute flights from Portugal to San Francisco
Discover last-minute flight deals from Portugal to San Francisco. Data last updated March 28, 2025 and is based on user searches.

Sat 3/2910:30 amLIS - SFO

1 stop19h 22mAmerican Airlines

Mon 3/317:43 amSFO - LIS

1 stop17h 22mAmerican Airlines

Deal found 3/26

$751

Thu 4/311:40 amLIS - SFO

1 stop32h 05mMultiple Airlines

Tue 4/83:05 pmSFO - LIS

1 stop15h 45mMultiple Airlines

Deal found 3/27

$620

Thu 4/35:00 amLIS - SFO

2 stops22h 07mDelta

Tue 4/83:05 pmSFO - LIS

1 stop18h 45mDelta

Deal found 3/27

$625

Thu 4/36:30 amOPO - SFO

1 stop37h 15mKLM

Thu 4/171:45 pmSFO - OPO

1 stop22h 05mKLM

Deal found 3/27

$735

Thu 4/34:20 pmOPO - SFO

2 stops39h 16mAir France

Thu 4/178:54 pmSFO - OPO

2 stops39h 41mAir France

Deal found 3/27

$806

Thu 4/39:35 amLIS - SFO

Nonstop12h 35mTAP AIR PORTUGAL

Tue 4/84:20 pmSFO - LIS

Nonstop11h 10mTAP AIR PORTUGAL

Deal found 3/27

$916

Fri 4/46:40 amOPO - SFO

2 stops25h 04mDelta

Fri 4/181:40 pmSFO - OPO

2 stops22h 55mDelta

Deal found 3/27

$640

Fri 4/412:35 pmOPO - SFO

2 stops19h 50mUnited Airlines

Fri 4/118:26 amSFO - OPO

2 stops18h 49mUnited Airlines

Deal found 3/27

$951

Fri 4/44:50 pmOPO - SFO

1 stop25h 45mTurkish Airlines

Fri 4/116:45 pmSFO - OPO

1 stop36h 20mTurkish Airlines

Deal found 3/27

$1,141

Fri 4/48:35 amOPO - SFO

2 stops20h 06mMultiple Airlines

Thu 4/1012:21 amSFO - OPO

2 stops23h 14mMultiple Airlines

Deal found 3/27

$1,377

Fri 4/46:15 amOPO - SFO

3 stops21h 45mLufthansa

Fri 4/112:40 pmSFO - OPO

3 stops24h 40mLufthansa

Deal found 3/27

$1,498

Sat 4/511:25 amLIS - SFO

2 stops45h 57mUnited Airlines

Sat 4/196:30 amSFO - LIS

2 stops20h 05mUnited Airlines

Deal found 3/27

$777

One-way flights from Portugal to San Francisco
Search for one-way flight options from Portugal to San Francisco. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Wed 5/1410:00 pmOPO - SFO

2 stops24h 30mMultiple Airlines

Deal found 3/27

$333

Thu 5/299:40 amLIS - SFO

Nonstop12h 50mTAP AIR PORTUGAL

Deal found 3/26

$452

Thu 4/103:00 pmLIS - SFO

2 stops55h 40mMultiple Airlines

Deal found 3/27

$454

Tue 8/199:10 amLIS - SFO

1 stop17h 00mIberia

Deal found 3/26

$456

Mon 9/810:00 pmOPO - SFO

1 stop28h 10mIberia

Deal found 3/28

$494

Wed 4/910:15 pmLIS - SFO

1 stop25h 40mAer Lingus

Deal found 3/27

$533

Thu 6/198:50 amLIS - SFO

1 stop35h 40mAir Transat

Deal found 3/25

$563

Sun 6/89:15 pmOPO - SFO

1 stop25h 15mTAP AIR PORTUGAL

Deal found 3/26

$585

Mon 4/710:10 pmLIS - SFO

1 stop27h 50mVueling

Deal found 3/26

$587

Sat 6/710:40 amOPO - SFO

2 stops21h 03mBritish Airways

Deal found 3/27

$598

Sat 6/71:30 pmOPO - SFO

1 stop31h 00mAir Transat

Deal found 3/27

$605

Sun 5/116:35 amLIS - SFO

2 stops25h 31mFinnair

Deal found 3/27

$606

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 5/22

6:30 am-11:45 am

1 stop37h 15m

San Francisco

Thu 5/29

3:05 pm-3:30 pm

1 stop16h 25m

$609

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 5/8

8:15 am-4:10 pm

1 stop15h 55m

San Francisco

Thu 5/15

3:50 pm-8:20 pm

2 stops20h 30m

$616

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 5/1

5:00 am-11:45 am

1 stop14h 45m

San Francisco

Tue 5/13

1:45 pm-5:50 pm

2 stops20h 05m

$620

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 5/9

5:00 am-11:45 am

1 stop14h 45m

San Francisco

Mon 5/12

8:25 pm-10:25 pm

1 stop18h 00m

$622

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 5/1

6:35 am-4:10 pm

1 stop17h 35m

San Francisco

Thu 5/15

7:30 pm-11:00 pm

1 stop19h 30m

$629

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 4/28

4:20 pm-11:45 am

2 stops27h 25m

San Francisco

Mon 5/5

8:45 pm-3:30 pm

1 stop34h 45m

$633

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 4/10

11:05 am-10:36 pm

1 stop19h 31m

San Francisco

Tue 4/15

7:30 pm-11:00 pm

1 stop19h 30m

$637

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 4/14

6:35 am-10:43 pm

2 stops24h 08m

San Francisco

Mon 4/28

3:05 pm-3:30 pm

1 stop16h 25m

$639

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Sun 9/14

11:20 am-7:36 pm

1 stop16h 16m

San Francisco

Sun 9/21

11:45 pm-9:35 am

1 stop25h 50m

$641

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 5/22

8:15 am-4:10 pm

1 stop15h 55m

San Francisco

Thu 5/29

5:45 pm-3:55 pm

1 stop14h 10m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 57 results

...

Best time to book a flight from Portugal to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Portugal 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 Portugal to San Francisco

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

Currently, January is the cheapest month in which you can book a flight from Portugal to San Francisco (average of $276). Flying from Portugal to San Francisco in June is currently the most expensive (average of $398). 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 PT to SFO?

When flying from Portugal to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Francisco by month

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.

Temperature in San Francisco by month

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).

Reviews of airlines servicing San Francisco

See what other customers who have flown with Delta, KLM and Air Transat from Portugal to San Francisco have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,897 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

7,897 reviews

Delta

8.0

Very good

7,897 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

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very good

7,897 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

Air Transat

7.8

Good

381 reviews

Delta

8.0

Very good

7,897 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

Finnair

7.6

Good

1,267 reviews

Delta

8.0

Very good

7,897 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

SWISS

7.5

Good

1,570 reviews

Delta

8.0

Very good

7,897 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

What airport do you fly into for flights to San Francisco from Portugal?
For a flight from Portugal to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.
How popular is this Portugal to San Francisco flight route?
This flight path from Portugal to San Francisco was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines to fly from Portugal to San Francisco one-way?
To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $452. Iberia flights start at $456 while deals on Aer Lingus start at $533 one-way.
What are the most popular routes from Portugal to San Francisco?
The most popular flight routes from Portugal to San Francisco are Lisbon Humberto Delgado - San Francisco, Porto - San Francisco and Funchal Madeira - San Francisco.
What are the most reliable airlines from Portugal to San Francisco?
No one likes to see their flight delayed. When booking a flight from Portugal to San Francisco consider choosing Etihad Airways (77%), JetBlue (75%) or TAP AIR PORTUGAL (64%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Portugal to San Francisco?
While on average a flight from Portugal to San Francisco is generally $1,833, our data shows the cheapest flight currently is $453. When looking at the most popular route, (Lisbon Humberto Delgado - San Francisco), you can expect to pay $621 for that flight.
Can I find deals for flights from Portugal to San Francisco that include hotel bookings?
Yes. In addition to deals on Portugal to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portugal to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to San Francisco.
Can I find deals for business class flights from Portugal to San Francisco?
Yes. Cheapflights offers flight deals from Portugal 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 Portugal to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Portugal to San Francisco (average of $276). Flying from Portugal to San Francisco in June is currently the most expensive (average of $398). 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

Mountain View

Santa Cruz

Turlock

Fairfield

South San Francisco

Manteca

Sausalito

Richmond

Watsonville

Hollister

Milpitas

Antioch

Hayward

Vallejo

Newark

Alameda

Campbell

Daly City

Pacific Grove

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Portugal to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
LEVEL	Cheapest$473	Average$641	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$528	Average$763	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$573	Average$792	FlexibilityNo cancel fee	On-time70%
Iberia	Cheapest$613	Average$754	FlexibilityNo cancel fee	On-time77%
TAP AIR PORTUGAL	Cheapest$648	Average$878	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$659	Average$879	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$669	Average$869	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$699	Average$764	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$333+ Cheap flights from Portugal 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portugal to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portugal to San Francisco

Keep the following information in mind while searching for Portugal to San Francisco flight deals. Data was last updated March 28, 2025.

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

Find flight deals from Portugal to San Francisco

Cheapest flights from Portugal to San FranciscoExplore the most affordable flight options available from Portugal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from Portugal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Portugal to San Francisco

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Portugal 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 March 28, 2025.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

See what other customers who have flown with Delta, KLM and Air Transat from Portugal to San Francisco have to say. 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 Portugal to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Francisco from Portugal?

How popular is this Portugal to San Francisco flight route?

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

What are the most popular routes from Portugal to San Francisco?

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

What are the cheapest flights from Portugal to San Francisco?

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

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

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

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

Traveling to a place near Portugal?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portugal to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Portugal to San Francisco

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Portugal to San Francisco
Explore the most affordable flight options available from Portugal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.