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

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from San Francisco to Portugal?

British Airways and TAP AIR PORTUGAL are the most popular carriers operating from San Francisco to Portugal

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

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Air Canada are the top three most popular airlines that fly to Portugal from San Francisco according to our data. TAP AIR PORTUGAL is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 18 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

How many flights depart from San Francisco to Portugal on average per week?

9 flights are operational weekly from San Francisco to Portugal as of January 2026. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.

How often are flights from San Francisco to Portugal delayed?

Historically, on average around 22% of flights between San Francisco and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 120 minutes.

How many flights depart from San Francisco to Portugal on average per day?

1 flights are operational daily from San Francisco to Portugal as of January 2026. The most popular departure time for this route is 4:00PM, with 66% of flights per day taking off in the afternoon.

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

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 22% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from San Francisco Airport to Portugal?

Prices for flights from San Francisco Airport to Portugal are refreshed on a daily basis.

How many operators does momondo search for flights from San Francisco Airport to Portugal?

As of January 2026, there are 18 operators available to choose from for flights from San Francisco Airport to Portugal.

How old do you have to be to fly from San Francisco Airport to Portugal?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$230 Cheap Flights from San Francisco to Portugal in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from San Francisco to Portugal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:35 pm - 7:00 pm

SFO

OPO

15h 25m

1 stop

7:00 am - 2:35 pm

OPO

SFO

15h 35m

1 stop

$431TAP AIR PORTUGAL

Sat, Apr 4 - Tue, Apr 14

7:35 pm - 5:20 pm

SFO

FAO

13h 45m

1 stop

6:05 am - 5:35 pm

FAO

SFO

19h 30m

1 stop

$431TAP AIR PORTUGAL

Sat, Mar 28 - Sat, Apr 4

5:40 am - 2:55 pm

SFO

LIS

25h 15m

2 stops

9:50 am - 11:20 pm

LIS

SFO

21h 30m

2 stops

$512Delta

Mon, Apr 13 - Tue, Apr 21

7:20 pm - 11:15 pm

SFO

LIS

19h 55m

1 stop

6:45 pm - 1:50 pm

LIS

SFO

27h 05m

1 stop

$514British Airways

Wed, Apr 15 - Mon, Apr 20

9:40 pm - 11:30 pm

SFO

LIS

17h 50m

1 stop

5:00 am - 1:40 pm

LIS

SFO

15h 40m

1 stop

$515United Airlines

Thu, Mar 5 - Thu, Mar 12

5:05 am - 8:10 am

SFO

LIS

19h 05m

2 stops

5:00 am - 9:10 pm

LIS

SFO

23h 10m

1 stop

$517United Airlines

Thu, Mar 5 - Tue, Mar 17

10:40 pm - 11:30 pm

SFO

LIS

17h 50m

1 stop

5:05 am - 5:12 pm

LIS

SFO

20h 07m

2 stops

$518Lufthansa

Sat, Mar 14 - Tue, Apr 14

10:32 am - 5:50 pm

SFO

LIS

23h 18m

2 stops

10:00 am - 11:54 pm

LIS

SFO

21h 54m

2 stops

$520Delta

Tue, Apr 14 - Fri, Apr 24

3:15 pm - 10:50 pm

SFO

LIS

24h 35m

2 stops

2:10 pm - 8:35 pm

LIS

SFO

37h 25m

1 stop

$521Lufthansa

Wed, Mar 11 - Mon, Mar 23

7:30 pm - 11:10 am

SFO

FNC

31h 40m

1 stop

7:00 pm - 1:50 pm

FNC

SFO

26h 50m

1 stop

$541British Airways

Mon, Apr 20 - Mon, Apr 27

Delta flights from San Francisco to Portugal

Our best Delta deals on San Francisco to Portugal flight tickets

Delta

Apr 13

SFO5:40 amSan Francisco

25h 15m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Apr 21

LIS9:50 amLisbon Humberto Delgado

21h 30m

2 stops

SFO11:20 pmSan Francisco

$512

Delta

Apr 14

SFO10:32 amSan Francisco

23h 18m

2 stops

LIS5:50 pmLisbon Humberto Delgado

Apr 24

LIS10:00 amLisbon Humberto Delgado

21h 54m

2 stops

SFO11:54 pmSan Francisco

$520

Delta

Apr 21

SFO6:00 amSan Francisco

24h 55m

2 stops

LIS2:55 pmLisbon Humberto Delgado

May 14

LIS11:55 amLisbon Humberto Delgado

31h 50m

1 stop

SFO11:45 amSan Francisco

$530

Iberia flights from San Francisco to Portugal

Our best Iberia deals on San Francisco to Portugal flight tickets

Iberia

Apr 28

SFO7:40 pmSan Francisco

16h 55m

1 stop

LIS8:35 pmLisbon Humberto Delgado

May 19

LIS9:10 amLisbon Humberto Delgado

16h 45m

1 stop

SFO5:55 pmSan Francisco

$513

Iberia

Feb 25

SFO10:36 amSan Francisco

17h 14m

2 stops

LIS11:50 amLisbon Humberto Delgado

Mar 2

LIS4:45 pmLisbon Humberto Delgado

24h 26m

2 stops

SFO9:11 amSan Francisco

$523

Iberia

Feb 2

SFO10:11 amSan Francisco

17h 39m

2 stops

LIS11:50 amLisbon Humberto Delgado

Feb 9

LIS8:45 pmLisbon Humberto Delgado

34h 51m

2 stops

SFO11:36 pmSan Francisco

$534

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Sat 4/4

7:35 pm-7:00 pm

1 stop15h 25m

Porto

Tue 4/14

7:00 am-2:35 pm

1 stop15h 35m

$431

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

Sat 3/28

7:35 pm-5:20 pm

1 stop13h 45m

Faro

Sat 4/4

6:05 am-5:35 pm

1 stop19h 30m

$431

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 4/13

5:40 am-2:55 pm

2 stops25h 15m

Lisbon Humberto Delgado

Tue 4/21

9:50 am-11:20 pm

2 stops21h 30m

$512

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 4/15

7:20 pm-11:15 pm

1 stop19h 55m

Lisbon Humberto Delgado

Mon 4/20

6:45 pm-1:50 pm

1 stop27h 05m

$514

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 3/5

9:40 pm-11:30 pm

1 stop17h 50m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-1:40 pm

1 stop15h 40m

$515

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 3/5

5:05 am-8:10 am

2 stops19h 05m

Lisbon Humberto Delgado

Tue 3/17

5:00 am-9:10 pm

1 stop23h 10m

$517

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sat 3/14

10:40 pm-11:30 pm

1 stop17h 50m

Lisbon Humberto Delgado

Tue 4/14

5:05 am-5:12 pm

2 stops20h 07m

$518

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 4/14

10:32 am-5:50 pm

2 stops23h 18m

Lisbon Humberto Delgado

Fri 4/24

10:00 am-11:54 pm

2 stops21h 54m

$520

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 3/11

3:15 pm-10:50 pm

2 stops24h 35m

Lisbon Humberto Delgado

Mon 3/23

2:10 pm-8:35 pm

1 stop37h 25m

$521

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Mon 4/20

7:30 pm-11:10 am

1 stop31h 40m

Funchal Madeira

Mon 4/27

7:00 pm-1:50 pm

1 stop26h 50m

$541

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Francisco to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from San Francisco is in January. Flight prices, which tend to average around $643, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from San Francisco during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $659.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Wednesday is the cheapest day to fly to Portugal from San Francisco. The lowest ticket price found for a Wednesday departure recently was $675. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $841.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from San Francisco to Portugal during this time can be as low as $721. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $842 per ticket.

What is the cheapest San Francisco to Portugal flight route?

Fly from San Francisco to Lisbon Humberto Delgado for the best San Francisco - Portugal flight prices

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

You are more likely to see cheaper flights to Portugal from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $810 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from San Francisco for as low as $745 on momondo.

What cabin class options are available on San Francisco to Portugal flights?

There are 3 cabin classes available to choose from on San Francisco to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Portugal flights?

You could potentially save up to 23% on your flight if you consider stops on a San Francisco to Portugal flight.

Cheap San Francisco to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Portugal

Best Price Found	$353
Fastest flight time	9h 45m
Direct flights	Tue, Wed, Thu, Fri, Sat and Sun
Airports in Portugal	99 airports

The best one-way flight to Portugal from San Francisco in the past 72 hours is $353. The best round-trip flight deal from San Francisco to Portugal found on momondo in the last 72 hours is $555.

The fastest flight from San Francisco to Portugal takes 9h 45m

Direct flights go from San Francisco to Portugal on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There are 99 airports in Portugal. From San Francisco there are direct flights to Lajes (TER), Lisbon Humberto Delgado (LIS).

Search flight deals

When did momondo last update prices for flights from San Francisco Airport to Portugal?
Prices for flights from San Francisco Airport to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Airport to Portugal?
As of January 2026, there are 18 operators available to choose from for flights from San Francisco Airport to Portugal.
How old do you have to be to fly from San Francisco Airport to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Francisco to Portugal?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to Portugal is Airbus A330-900neo (24.34% of total bookings). The next most popular plane models are Boeing 777 (23.36%), Boeing 777-300ER (12.02%), and Boeing 787-9 Dreamliner (9.09%).

Best airlines flying from San Francisco to Portugal

Compare and see reviews for airlines that fly from San Francisco to Portugal with momondo

Airline	Rating	Free Cancellation	Price
LEVEL	PriceFrom $291	Free Cancellation	Rating 0.0	Search LEVEL flights
Iberia	PriceFrom $309	Free Cancellation	Rating 7.0 3,098 reviews	Search Iberia flights
Scandinavian Airlines	PriceFrom $409	Free Cancellation	Rating 7.3 1,669 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $488	Free Cancellation	Rating 6.8 7,748 reviews	Search Lufthansa flights
KLM	PriceFrom $489	Free Cancellation	Rating 7.7 1,443 reviews	Search KLM flights
Air France	PriceFrom $495	Free Cancellation	Rating 7.4 1,526 reviews	Search Air France flights
British Airways	PriceFrom $511	Free Cancellation	Rating 6.7 7,702 reviews	Search British Airways flights
United Airlines	PriceFrom $511	Free Cancellation	Rating 7.4 9,204 reviews	Search United Airlines flights
Vueling	PriceFrom $532	Free Cancellation	Rating 7.1 1,237 reviews	Search Vueling flights
Delta	PriceFrom $539	Free Cancellation	Rating 7.9 8,118 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Portugal?

It is quick and easy to find San Francisco to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from San Francisco to Portugal with flexible booking policies on momondo?

Yes. All flights to Portugal from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to Portugal?

Once you have performed a search for San Francisco to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Francisco to Portugal right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Francisco to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 2/25

Wed 3/4

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities in Portugal

Flights to Lisbonfrom $339

Flights to Portofrom $317

Flights to Funchalfrom $376

Flights to Farofrom $364

Flights to Ponta Delgadafrom $391

Flights to Lajesfrom $391

Flights to Hortafrom $577

Flights to Pico Islandfrom $569

Flights to Porto Santofrom $442

Flights to Velasfrom $567

Cheap flights from San Francisco to Portugal from $230

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Portugal departing on 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from San Francisco to Portugal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from San Francisco to Portugal

Our best Delta deals on San Francisco to Portugal flight tickets

Iberia flights from San Francisco to Portugal

Our best Iberia deals on San Francisco to Portugal flight tickets

momondo Fare Finder

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

See travel insights to Portugal from

How to get the cheapest flight ticket from San Francisco to Portugal

What is the cheapest month to fly to Portugal?

What is the cheapest day to depart on your flight to Portugal?

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from San Francisco to Portugal during this time can be as low as $721. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $842 per ticket.

What is the cheapest San Francisco to Portugal flight route?

Fly from San Francisco to Lisbon Humberto Delgado for the best San Francisco - Portugal flight prices

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

What cabin class options are available on San Francisco to Portugal flights?

There are 3 cabin classes available to choose from on San Francisco to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Portugal flights?

You could potentially save up to 23% on your flight if you consider stops on a San Francisco to Portugal flight.

What is the cheapest airline that flies from San Francisco to Portugal?

British Airways and TAP AIR PORTUGAL are the most popular carriers operating from San Francisco to Portugal

What airlines fly to Portugal?

How often are flights from San Francisco to Portugal delayed?

Historically, on average around 22% of flights between San Francisco and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 120 minutes.

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

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

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

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 22% of their flights experiencing any sort of delay.

How many flights depart from San Francisco to Portugal on average per day?

1 flights are operational daily from San Francisco to Portugal as of January 2026. The most popular departure time for this route is 4:00PM, with 66% of flights per day taking off in the afternoon.

How many flights depart from San Francisco to Portugal on average per week?

9 flights are operational weekly from San Francisco to Portugal as of January 2026. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.

Cheap San Francisco to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Portugal

Best Price Found

Fastest flight time

Direct flights

Airports in Portugal

When did momondo last update prices for flights from San Francisco Airport to Portugal?

How many operators does momondo search for flights from San Francisco Airport to Portugal?

How old do you have to be to fly from San Francisco Airport to Portugal?

What documentation or ID do you need to fly to Portugal?

What is the most popular plane model from San Francisco to Portugal?

Best airlines flying from San Francisco to Portugal

Compare and see reviews for airlines that fly from San Francisco to Portugal with momondo

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Portugal?

Can I find flights from San Francisco to Portugal with flexible booking policies on momondo?

How can momondo help me find flights from San Francisco to Portugal?

I’m not ready to book a flight from San Francisco to Portugal right now. Can momondo alert me if prices change?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo