How popular is this San Francisco to Portugal flight route?

This flight path from San Francisco to Portugal was viewed by 25 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How long is the flight from San Francisco to Portugal?

Departing from San Francisco to Portugal will take you 15h 25m. The distance from San Francisco to Portugal is about 5664 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

The cheapest airlines for a one-way flight from San Francisco to Portugal are Iberia ($256), British Airways ($261), and LEVEL ($308).

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 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 most popular routes from San Francisco to Portugal?

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

What are the cheapest flights from San Francisco to Portugal?

Looking at all options, your cheapest flight can be booked for $329. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $444 on average, our data indicates $1,672 when flying from San Francisco to Portugal.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Portugal on time: Etihad Airways (83%), JetBlue (77%), TAP AIR PORTUGAL (77%).

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

When booking a flight from San Francisco to Portugal, you may want to consider flying on TAP AIR PORTUGAL, United Airlines or Air Canada as they are the most popular for this route.

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

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

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

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

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

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

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

Yes. Cheapflights offers flight deals from San Francisco to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$233+ Flights from San Francisco to Portugal

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

Find cheap flights from San Francisco to Portugal 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 San Francisco to Portugal

Cheapest flights from San Francisco to Portugal
Explore the most affordable flight options available from San Francisco to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Tue 12/302:30 pmSFO - LIS

2 stops19h 00mDelta

Wed 1/1411:25 amLIS - SFO

2 stops21h 43mDelta

Deal found 12/30

$505

Tue 12/3011:05 pmSFO - LIS

2 stops25h 50mMultiple Airlines

Mon 1/192:10 pmLIS - SFO

1 stop36h 45mMultiple Airlines

Deal found 12/30

$508

Tue 12/305:25 pmSFO - LIS

2 stops34h 20mSWISS

Mon 1/193:25 pmLIS - SFO

2 stops29h 55mSWISS

Deal found 12/30

$551

Tue 12/3011:35 pmSFO - LIS

1 stop23h 20mBritish Airways

Thu 1/810:40 amLIS - SFO

2 stops31h 04mBritish Airways

Deal found 12/29

$676

Tue 12/3011:35 pmSFO - LIS

1 stop23h 20mBritish Airways

Fri 1/910:40 amLIS - SFO

2 stops22h 07mBritish Airways

Deal found 12/30

$699

Wed 12/318:35 amSFO - LIS

2 stops16h 20mAir Canada

Wed 1/75:00 amLIS - SFO

2 stops37h 54mAir Canada

Deal found 12/30

$717

Tue 12/3011:05 pmSFO - LIS

2 stops25h 05mUnited Airlines

Fri 1/95:00 amLIS - SFO

2 stops22h 28mUnited Airlines

Deal found 12/30

$723

Tue 12/306:10 amSFO - LIS

1 stop18h 55mBritish Airways

Wed 1/76:35 pmLIS - SFO

2 stops30h 49mBritish Airways

Deal found 12/29

$736

Tue 12/3011:06 pmSFO - LIS

2 stops25h 04mUnited Airlines

Sat 1/1010:15 amLIS - SFO

2 stops28h 59mUnited Airlines

Deal found 12/29

$838

Tue 12/309:41 pmSFO - PDL

2 stops49h 34mMultiple Airlines

Sat 1/105:45 pmPDL - SFO

2 stops55h 14mMultiple Airlines

Deal found 12/29

$1,012

Wed 12/314:35 pmSFO - FNC

1 stop19h 35mMultiple Airlines

Wed 1/76:00 amFNC - SFO

2 stops40h 35mMultiple Airlines

Deal found 12/30

$1,458

Wed 12/314:35 pmSFO - FNC

1 stop16h 35mTAP AIR PORTUGAL

Tue 1/64:10 amFNC - SFO

1 stop18h 20mTAP AIR PORTUGAL

Deal found 12/30

$5,504

Best flights from San Francisco to Portugal
Discover carefully curated flight deals from San Francisco to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 1, 2026.

Tue 3/31:55 pmSFO - FNC

1 stop35h 35mKLM

Wed 3/1110:25 amFNC - SFO

1 stop33h 25mKLM

Deal found 12/31

$497

Wed 1/1411:46 amSFO - LIS

2 stops21h 44mDelta

Tue 1/205:00 amLIS - SFO

2 stops22h 36mDelta

Deal found 12/30

$505

Sat 1/244:40 pmSFO - LIS

1 stop15h 25mScandinavian Airlines

Sun 2/226:00 pmLIS - SFO

1 stop28h 35mScandinavian Airlines

Deal found 12/31

$507

Mon 1/1212:10 pmSFO - LIS

2 stops18h 25mMultiple Airlines

Wed 2/45:30 amLIS - SFO

2 stops20h 17mMultiple Airlines

Deal found 12/31

$508

Mon 2/94:35 pmSFO - OPO

1 stop16h 25mTAP AIR PORTUGAL

Mon 2/236:55 amOPO - SFO

1 stop15h 40mTAP AIR PORTUGAL

Deal found 12/31

$521

Fri 1/305:00 amSFO - LIS

2 stops19h 10mUnited Airlines

Fri 2/610:55 amLIS - SFO

2 stops36h 17mUnited Airlines

Deal found 12/31

$522

Mon 1/1211:45 amSFO - LIS

2 stops18h 50mSWISS

Mon 2/23:25 pmLIS - SFO

2 stops29h 55mSWISS

Deal found 12/31

$530

Tue 3/36:00 amSFO - FNC

2 stops23h 30mIberia

Wed 3/112:10 pmFNC - SFO

2 stops39h 22mIberia

Deal found 12/31

$534

Mon 1/198:40 pmSFO - FNC

1 stop34h 30mBritish Airways

Mon 2/25:05 pmFNC - SFO

1 stop33h 40mBritish Airways

Deal found 12/30

$542

Fri 1/166:50 pmSFO - OPO

1 stop31h 05mTurkish Airlines

Thu 1/294:10 pmOPO - SFO

1 stop32h 35mTurkish Airlines

Deal found 12/31

$734

Tue 1/131:55 pmSFO - FNC

1 stop35h 35mKLM

Mon 1/1910:25 amFNC - SFO

1 stop33h 25mKLM

Deal found 12/31

$497

Tue 2/249:55 amSFO - LIS

2 stops17h 25mDelta

Wed 3/115:00 amLIS - SFO

2 stops21h 10mDelta

Deal found 12/30

$505

Thu 1/224:40 pmSFO - LIS

1 stop15h 10mScandinavian Airlines

Sun 2/226:00 pmLIS - SFO

1 stop28h 35mScandinavian Airlines

Deal found 12/31

$517

Sat 1/174:35 pmSFO - OPO

1 stop14h 25mTAP AIR PORTUGAL

Sat 1/246:55 amOPO - SFO

1 stop15h 50mTAP AIR PORTUGAL

Deal found 12/30

$521

Mon 1/1910:55 pmSFO - FNC

2 stops50h 35mKLM

Mon 2/210:25 amFNC - SFO

1 stop33h 25mKLM

Deal found 12/30

$498

Wed 4/81:05 pmSFO - LIS

2 stops21h 40mDelta

Wed 4/225:00 amLIS - SFO

2 stops18h 59mDelta

Deal found 12/31

$509

Fri 1/237:10 pmSFO - FAO

1 stop20h 40mTAP AIR PORTUGAL

Sun 2/111:15 amFAO - SFO

1 stop35h 20mTAP AIR PORTUGAL

Deal found 12/30

$528

Thu 3/54:40 pmSFO - OPO

1 stop16h 15mScandinavian Airlines

Mon 3/95:35 pmOPO - SFO

2 stops36h 25mScandinavian Airlines

Deal found 12/31

$558

Tue 2/31:35 pmSFO - LIS

2 stops19h 55mDelta

Wed 2/115:30 amLIS - SFO

2 stops22h 06mDelta

Deal found 12/30

$511

Fri 1/301:55 pmSFO - FNC

1 stop19h 55mKLM

Thu 2/510:20 amFNC - SFO

1 stop33h 30mKLM

Deal found 12/30

$520

Sat 1/244:35 pmSFO - FAO

1 stop15h 10mTAP AIR PORTUGAL

Sat 2/76:05 amFAO - SFO

1 stop16h 40mTAP AIR PORTUGAL

Deal found 12/31

$536

Mon 4/2711:00 amSFO - LIS

2 stops19h 55mDelta

Fri 5/85:35 amLIS - SFO

2 stops21h 00mDelta

Deal found 12/31

$511

Thu 1/291:55 pmSFO - FNC

1 stop19h 15mKLM

Thu 2/510:20 amFNC - SFO

1 stop33h 30mKLM

Deal found 12/30

$520

Fri 1/162:40 pmSFO - OPO

2 stops22h 45mMultiple Airlines

Thu 1/298:10 pmOPO - SFO

2 stops24h 30mMultiple Airlines

Deal found 12/30

$695

Fri 1/234:40 pmSFO - FAO

1 stop15h 40mScandinavian Airlines

Wed 2/410:35 amFAO - SFO

2 stops36h 00mScandinavian Airlines

Deal found 12/31

$586

Fri 1/237:10 pmSFO - FAO

1 stop20h 40mTAP AIR PORTUGAL

Mon 2/26:05 amFAO - SFO

1 stop16h 30mTAP AIR PORTUGAL

Deal found 12/31

$536

Thu 1/221:10 pmSFO - OPO

1 stop42h 00mTurkish Airlines

Sun 1/254:30 pmOPO - SFO

1 stop32h 15mTurkish Airlines

Deal found 12/29

$738

Sun 2/155:45 amSFO - LIS

2 stops21h 35mDelta

Tue 2/245:30 amLIS - SFO

2 stops21h 06mDelta

Deal found 12/29

$511

Wed 3/1110:35 amSFO - OPO

2 stops15h 55mUnited Airlines

Wed 3/1812:30 pmOPO - SFO

1 stop15h 40mUnited Airlines

Deal found 12/30

$771

Fri 3/138:55 pmSFO - OPO

2 stops18h 05mMultiple Airlines

Fri 3/2010:20 amOPO - SFO

1 stop17h 50mMultiple Airlines

Deal found 12/31

$708

Last-minute flights from San Francisco to Portugal
Discover last-minute flight deals from San Francisco to Portugal. Data last updated January 1, 2026 and is based on user searches.

Sat 1/1010:55 pmSFO - LIS

1 stop25h 05mDelta

Fri 2/65:00 amLIS - SFO

2 stops23h 59mDelta

Deal found 12/31

$506

Sun 1/117:00 amSFO - LIS

2 stops20h 20mDelta

Tue 1/205:00 amLIS - SFO

2 stops23h 25mDelta

Deal found 12/30

$505

Mon 1/1212:10 pmSFO - LIS

2 stops18h 25mMultiple Airlines

Wed 2/45:30 amLIS - SFO

2 stops20h 17mMultiple Airlines

Deal found 12/31

$508

Tue 1/131:55 pmSFO - FNC

1 stop35h 35mKLM

Mon 1/1910:25 amFNC - SFO

1 stop33h 25mKLM

Deal found 12/31

$497

Wed 1/1412:50 pmSFO - LIS

2 stops17h 45mMultiple Airlines

Tue 1/206:10 amLIS - SFO

2 stops22h 24mMultiple Airlines

Deal found 12/31

$503

Thu 1/154:40 pmSFO - LIS

1 stop15h 10mScandinavian Airlines

Sun 2/14:55 pmLIS - SFO

1 stop29h 40mScandinavian Airlines

Deal found 12/31

$507

Sat 1/177:30 amSFO - LIS

2 stops17h 25mAir Canada

Fri 1/306:10 amLIS - SFO

2 stops22h 24mAir Canada

Deal found 12/31

$510

Mon 1/1910:55 pmSFO - FNC

2 stops50h 35mKLM

Mon 2/210:25 amFNC - SFO

1 stop33h 25mKLM

Deal found 12/30

$498

Mon 1/262:36 pmSFO - LIS

2 stops23h 19mBritish Airways

Mon 2/166:35 pmLIS - SFO

2 stops36h 05mBritish Airways

Deal found 12/30

$512

Tue 1/276:50 pmSFO - LIS

2 stops30h 30mAir Canada

Thu 2/511:20 amLIS - SFO

2 stops35h 36mAir Canada

Deal found 1/1

$509

Thu 1/298:25 amSFO - LIS

1 stop16h 55mUnited Airlines

Tue 2/311:20 amLIS - SFO

2 stops39h 49mUnited Airlines

Deal found 12/29

$513

Fri 1/301:30 pmSFO - LIS

1 stop15h 50mLufthansa

Thu 2/55:00 amLIS - SFO

1 stop15h 40mLufthansa

Deal found 12/30

$511

One-way flights from San Francisco to Portugal
Search for one-way flight options from San Francisco to Portugal. Find affordable one-way fares based on user searches. Data last updated January 1, 2026.

Tue 4/147:30 pmSFO - LIS

1 stop19h 30mBritish Airways

Deal found 1/1

$233

Sun 4/124:31 pmSFO - LIS

2 stops22h 29mBritish Airways

Deal found 1/1

$234

Mon 4/69:49 pmSFO - LIS

2 stops28h 16mBritish Airways

Deal found 1/1

$235

Wed 4/87:20 pmSFO - LIS

1 stop30h 45mBritish Airways

Deal found 1/1

$239

Sun 5/1710:16 pmSFO - LIS

2 stops27h 49mBritish Airways

Deal found 1/1

$253

Wed 5/61:10 pmSFO - LIS

2 stops21h 35mDelta

Deal found 12/31

$254

Sun 4/127:40 pmSFO - LIS

2 stops19h 45mIberia

Deal found 1/1

$268

Sun 4/267:40 pmSFO - LIS

2 stops19h 45mIberia

Deal found 12/31

$269

Wed 5/1311:05 amSFO - LIS

2 stops19h 30mDelta

Deal found 12/31

$273

Thu 3/510:15 amSFO - FNC

3 stops40h 55mMultiple Airlines

Deal found 12/30

$317

Mon 3/94:05 pmSFO - FNC

2 stops41h 45mMultiple Airlines

Deal found 12/30

$340

Fri 3/66:29 amSFO - FNC

2 stops27h 51mMultiple Airlines

Deal found 12/30

$346

Find flight deals from San Francisco to Portugal

Most accurate provider	Justfly.com 3 stars
Most trusted provider	Justfly.com 3 stars
Round-trip from	$480 (oojo)
One-way from	$233 (Cheapflightsfares)
Popular in	June
Cheapest in	January
Average price	$651
Good round-trip deal	$574 or less
Good one-way deal	$351 or less

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

Search Deals

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

Search Deals

From San Francisco to Portugal

Search Deals

One-way flight from San Francisco to Portugal

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($149 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

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

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Tue 3/3

1:55 pm-9:30 am

1 stop35h 35m

Funchal Madeira

Wed 3/11

10:25 am-12:50 pm

1 stop33h 25m

$497

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Tue 1/13

1:55 pm-9:30 am

1 stop35h 35m

Funchal Madeira

Mon 1/19

10:25 am-11:50 am

1 stop33h 25m

$497

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Mon 1/19

10:55 pm-9:30 am

2 stops50h 35m

Funchal Madeira

Mon 2/2

10:25 am-11:50 am

1 stop33h 25m

$498

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 1/14

11:46 am-5:30 pm

2 stops21h 44m

Lisbon Humberto Delgado

Tue 1/20

5:00 am-7:36 pm

2 stops22h 36m

$505

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 2/24

9:55 am-11:20 am

2 stops17h 25m

Lisbon Humberto Delgado

Wed 3/11

5:00 am-7:10 pm

2 stops21h 10m

$505

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sat 1/24

4:40 pm-4:05 pm

1 stop15h 25m

Lisbon Humberto Delgado

Sun 2/22

6:00 pm-2:35 pm

1 stop28h 35m

$507

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 1/12

12:10 pm-2:35 pm

2 stops18h 25m

Lisbon Humberto Delgado

Wed 2/4

5:30 am-5:47 pm

2 stops20h 17m

$508

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 4/8

1:05 pm-6:45 pm

2 stops21h 40m

Lisbon Humberto Delgado

Wed 4/22

5:00 am-3:59 pm

2 stops18h 59m

$509

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 2/3

1:35 pm-5:30 pm

2 stops19h 55m

Lisbon Humberto Delgado

Wed 2/11

5:30 am-7:36 pm

2 stops22h 06m

$511

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 4/27

11:00 am-2:55 pm

2 stops19h 55m

Lisbon Humberto Delgado

Fri 5/8

5:35 am-6:35 pm

2 stops21h 00m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 60 results

...

Best time to book a flight from San Francisco to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $488). Flying from San Francisco to Portugal in June is currently the most expensive (average of $782). 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 SFO to PT?

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

How often are flights from San Francisco to Portugal delayed?

About 24% of weekly flights between San Francisco and Portugal have experienced delays in the past year, with the average delay time being 115 minutes.

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

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

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

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

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

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 24% of flights being delayed.

Reviews of airlines servicing Portugal

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

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

7.9

Good

8,017 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

9,131 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.1

Good

10,571 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

TAP AIR PORTUGAL

7.1

Good

2,104 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

British Airways

6.7

Okay

7,631 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from San Francisco to Portugal?
For a flight from San Francisco to Portugal, you will be flying from San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.
How popular is this San Francisco to Portugal flight route?
This flight path from San Francisco to Portugal was viewed by 25 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from San Francisco to Portugal?
Departing from San Francisco to Portugal will take you 15h 25m. The distance from San Francisco to Portugal is about 5664 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from San Francisco to Portugal one-way?
The cheapest airlines for a one-way flight from San Francisco to Portugal are Iberia ($256), British Airways ($261), and LEVEL ($308).
What are the most popular routes from San Francisco to Portugal?
The most popular flight routes from San Francisco to Portugal are San Francisco - Lisbon Humberto Delgado, San Francisco - Porto and San Francisco - Lajes.
What are the most reliable airlines from San Francisco to Portugal?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Portugal on time: Etihad Airways (83%), JetBlue (77%), TAP AIR PORTUGAL (77%).
What are the cheapest flights from San Francisco to Portugal?
Looking at all options, your cheapest flight can be booked for $329. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $444 on average, our data indicates $1,672 when flying from San Francisco to Portugal.
Can I find deals for flights from San Francisco to Portugal that include hotel bookings?
Yes. In addition to deals on San Francisco to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Portugal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Portugal.
Can I find deals for business class flights from San Francisco to Portugal?
Yes. Cheapflights offers flight deals from San Francisco to Portugal 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 San Francisco to Portugal?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $488). Flying from San Francisco to Portugal in June is currently the most expensive (average of $782). 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

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from San Francisco to Portugal

Airline	Cheapest	Average	Flexibility	On-time
LEVEL	Cheapest$351	Average$748	FlexibilityNo cancel fee	On-timeN/A
Iberia	Cheapest$363	Average$986	FlexibilityNo cancel fee	On-time77%
Scandinavian Airlines	Cheapest$409	Average$683	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$489	Average$768	FlexibilityNo cancel fee	On-time75%
Air France	Cheapest$495	Average$773	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$497	Average$1,096	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$514	Average$1,122	FlexibilityNo cancel fee	On-time69%
British Airways	Cheapest$514	Average$745	FlexibilityNo cancel fee	On-time70%
SWISS	Cheapest$528	Average$874	FlexibilityNo cancel fee	On-time79%
Vueling	Cheapest$532	Average$840	FlexibilityNo cancel fee	On-time88%

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.

$233+ Cheap flights from San Francisco (SFO) to Portugal

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Portugal with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Francisco to Portugal

Cheapest flights from San Francisco to PortugalExplore the most affordable flight options available from San Francisco to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Explore the most affordable flight options available from San Francisco to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Find flight deals from San Francisco to Portugal

Keep the following information in mind while searching for San Francisco to Portugal flight deals. Data was last updated January 1, 2026.

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 San Francisco to Portugal that are best for you.

Best time to book a flight from San Francisco to Portugal

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

Cheapflights Insights

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

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

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

Find hourly flight availability from San Francisco to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 1, 2026.

How often are flights from San Francisco to Portugal delayed?

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

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

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

Reviews of airlines servicing Portugal

Read through reviews of airlines operating flights from San Francisco to Portugal, such as Delta, United Airlines, and Air Canada. 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 San Francisco to Portugal. 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 from for flights from San Francisco to Portugal?

How popular is this San Francisco to Portugal flight route?

How long is the flight from San Francisco to Portugal?

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

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

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

What are the cheapest flights from San Francisco to Portugal?

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

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

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

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

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

Top 10 airlines flying from San Francisco to Portugal

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Francisco to Portugal
Explore the most affordable flight options available from San Francisco to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.