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Cheap flights from Porto to San Francisco from $380

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Porto to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
5:50 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 4:55 pmSFO  San Francisco-OPO Porto
16h 10m1 stop Kastrup Copenhagen
$380Scandinavian Airlines
Thu, Nov 12 - Thu, Nov 26
Scandinavian Airlines Logo
5:50 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:00 am - 4:55 pmSFO  San Francisco-OPO Porto
25h 55m2 stops New York John F Kennedy Intl Kastrup Copenhagen
$578Scandinavian Airlines
Thu, Nov 12 - Thu, Nov 26
Scandinavian Airlines Logo
5:50 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:00 am - 11:05 amSFO  San Francisco-OPO Porto
20h 05m2 stops Boston Logan Intl Kastrup Copenhagen
$579Scandinavian Airlines
Thu, Nov 5 - Tue, Nov 17
Scandinavian Airlines Logo
5:50 pm - 3:50 pmOPO  Porto-SFO San Francisco
29h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:05 amSFO  San Francisco-OPO Porto
34h 20m1 stop Kastrup Copenhagen
$595Scandinavian Airlines
Thu, Oct 29 - Sat, Nov 14
Scandinavian Airlines Logo
5:50 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:05 amSFO  San Francisco-OPO Porto
34h 20m1 stop Kastrup Copenhagen
$613Scandinavian Airlines
Thu, Nov 19 - Mon, Nov 23
Scandinavian Airlines Logo
5:50 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:30 pm - 5:00 pmSFO  San Francisco-OPO Porto
40h 30m2 stops Los Angeles Kastrup Copenhagen
$622Scandinavian Airlines
Thu, Nov 5 - Tue, Nov 17
TAP AIR PORTUGAL Logo
9:00 am - 2:05 pmOPO  Porto-SFO San Francisco
37h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:35 pm - 4:35 pmSFO  San Francisco-OPO Porto
16h 00m1 stop Lisbon Humberto Delgado
$677TAP AIR PORTUGAL
Sun, Oct 18 - Sat, Oct 31
Scandinavian Airlines Logo
5:50 pm - 1:15 amOPO  Porto-SFO San Francisco
38h 25m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
4:45 pm - 4:45 pmSFO  San Francisco-OPO Porto
16h 00m1 stop Kastrup Copenhagen
$679Scandinavian Airlines
Thu, Oct 29 - Sat, Nov 14
KLM Logo
5:55 am - 12:50 pmOPO  Porto-SFO San Francisco
14h 55m1 stop Paris Charles de Gaulle
KLM Logo
3:05 pm - 3:25 pmSFO  San Francisco-OPO Porto
16h 20m1 stop Paris Charles de Gaulle
$690KLM
Thu, Oct 1 - Mon, Oct 12
TAP AIR PORTUGAL Logo
7:00 am - 2:45 pmOPO  Porto-SFO San Francisco
15h 45m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
4:35 pm - 3:00 pmSFO  San Francisco-OPO Porto
14h 25m1 stop Lisbon Humberto Delgado
$692TAP AIR PORTUGAL
Sat, Nov 21 - Mon, Dec 7

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Scandinavian Airlines flights from Porto to San Francisco

Our best Scandinavian Airlines deals on Porto to San Francisco flight tickets
Scandinavian Airlines
Nov 12
OPO5:50 pmPorto
29h 00m
1 stop
SFO2:50 pmSan Francisco
Nov 26
SFO4:45 pmSan Francisco
16h 10m
1 stop
OPO4:55 pmPorto
$380
Scandinavian Airlines
Nov 12
OPO5:50 pmPorto
29h 00m
1 stop
SFO2:50 pmSan Francisco
Nov 26
SFO7:00 amSan Francisco
25h 55m
2 stops
OPO4:55 pmPorto
$578
Scandinavian Airlines
Nov 5
OPO5:50 pmPorto
29h 00m
1 stop
SFO2:50 pmSan Francisco
Nov 17
SFO7:00 amSan Francisco
20h 05m
2 stops
OPO11:05 amPorto
$579

KLM flights from Porto to San Francisco

Our best KLM deals on Porto to San Francisco flight tickets
KLM
Oct 1
OPO5:55 amPorto
14h 55m
1 stop
SFO12:50 pmSan Francisco
Oct 12
SFO3:05 pmSan Francisco
16h 20m
1 stop
OPO3:25 pmPorto
$690
KLM
Sep 30
OPO5:00 amPorto
14h 45m
1 stop
SFO11:45 amSan Francisco
Oct 7
SFO1:45 pmSan Francisco
17h 45m
1 stop
OPO3:30 pmPorto
$735
KLM
Oct 1
OPO5:55 amPorto
14h 55m
1 stop
SFO12:50 pmSan Francisco
Oct 6
SFO2:15 pmSan Francisco
17h 15m
2 stops
OPO3:30 pmPorto
$741

momondo Fare Finder

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

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Route

Depart

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Price

Cheapest round-trip

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 11/12

5:50 pm-2:50 pm

1 stop29h 00m

San Francisco

Thu 11/26

4:45 pm-4:55 pm

1 stop16h 10m

$380

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 11/12

5:50 pm-2:50 pm

1 stop29h 00m

San Francisco

Thu 11/26

7:00 am-4:55 pm

2 stops25h 55m

$578

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 11/5

5:50 pm-2:50 pm

1 stop29h 00m

San Francisco

Tue 11/17

7:00 am-11:05 am

2 stops20h 05m

$579

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 10/29

5:50 pm-3:50 pm

1 stop29h 00m

San Francisco

Sat 11/14

4:45 pm-11:05 am

1 stop34h 20m

$595

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 11/19

5:50 pm-2:50 pm

1 stop29h 00m

San Francisco

Mon 11/23

4:45 pm-11:05 am

1 stop34h 20m

$613

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 11/5

5:50 pm-2:50 pm

1 stop29h 00m

San Francisco

Tue 11/17

4:30 pm-5:00 pm

2 stops40h 30m

$622

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Sun 10/18

9:00 am-2:05 pm

1 stop37h 05m

San Francisco

Sat 10/31

5:35 pm-4:35 pm

1 stop16h 00m

$677

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 10/29

5:50 pm-1:15 am

2 stops38h 25m

San Francisco

Sat 11/14

4:45 pm-4:45 pm

1 stop16h 00m

$679

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Thu 10/1

5:55 am-12:50 pm

1 stop14h 55m

San Francisco

Mon 10/12

3:05 pm-3:25 pm

1 stop16h 20m

$690
Quickest round-trip

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Sat 11/21

7:00 am-2:45 pm

1 stop15h 45m

San Francisco

Mon 12/7

4:35 pm-3:00 pm

1 stop14h 25m

$692

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

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

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

What is the typical price of a round-trip flight between Porto and San Francisco?

Prices are currently low for flights on this route.

Typical prices usually range from $720 to $875.
The lowest price recently found on this route was $380.

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $738.

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

You could potentially save up to 39% on your flight if you consider stops on a Porto to San Francisco flight.

How have Porto to San Francisco flight prices changed over time?

When to book flights from Porto to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to San Francisco (OPO to SFO) flight deals and tips

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

Best Price Found

$399

Fastest flight time

14h 45m

Direct flights

None
The best one-way flight to San Francisco from Porto in the past 72 hours is $399. The best round-trip flight deal from Porto to San Francisco found on momondo in the last 72 hours is $380.
The fastest flight from Porto to San Francisco takes 14h 45m
There are no direct flights from Porto to San Francisco. There are no popular flight routes from Porto to San Francisco.
Search flight deals

Frequently asked questions about flying from Porto to San Francisco

  • How far is Porto to San Francisco by plane?

    There are 5565.0 mi between Porto and San Francisco. Typically, this will take 14h 45m by plane in normal conditions.

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

    Prices for flights from Porto Airport to San Francisco Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
South San Francisco
Berkeley
Hayward
Bodega Bay
Fremont
Santa Clara
Walnut Creek
Sunnyvale
Vallejo
Half Moon Bay
Roseville
Salinas
Sonoma
Daly City
Milpitas
Pacific Grove
Marina

Why use momondo?

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

It is quick and easy to find Porto to San Francisco 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 San Francisco that suits you.

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

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

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

Once all potential Porto to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Porto to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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