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Cheap flights from Porto to San Francisco from $429

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
11:55 am - 2:50 pmOPO  Porto-SFO San Francisco
34h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:05 amSFO  San Francisco-OPO Porto
34h 20m1 stop Kastrup Copenhagen
$641Scandinavian Airlines
Wed, Feb 10 - Mon, Mar 1
Scandinavian Airlines Logo
5:45 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 05m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:05 amSFO  San Francisco-OPO Porto
34h 20m1 stop Kastrup Copenhagen
$661Scandinavian Airlines
Fri, Feb 12 - Mon, Mar 1
Scandinavian Airlines Logo
11:55 am - 2:50 pmOPO  Porto-SFO San Francisco
34h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:05 amSFO  San Francisco-OPO Porto
34h 20m1 stop Kastrup Copenhagen
$661Scandinavian Airlines
Wed, Feb 10 - Sat, Feb 27
Scandinavian Airlines Logo
11:55 am - 2:50 pmOPO  Porto-SFO San Francisco
34h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 4:55 pmSFO  San Francisco-OPO Porto
16h 10m1 stop Kastrup Copenhagen
$661Scandinavian Airlines
Wed, Feb 10 - Thu, Feb 25
Scandinavian Airlines Logo
5:45 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 05m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 4:55 pmSFO  San Francisco-OPO Porto
16h 10m1 stop Kastrup Copenhagen
$680Scandinavian Airlines
Fri, Feb 12 - Thu, Feb 25
Scandinavian Airlines Logo
5:45 pm - 2:50 pmOPO  Porto-SFO San Francisco
29h 05m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:05 amSFO  San Francisco-OPO Porto
34h 20m1 stop Kastrup Copenhagen
$680Scandinavian Airlines
Fri, Feb 12 - Sat, Feb 27
Scandinavian Airlines Logo
11:55 am - 3:50 pmOPO  Porto-SFO San Francisco
34h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 11:00 amSFO  San Francisco-OPO Porto
34h 15m1 stop Kastrup Copenhagen
$688Scandinavian Airlines
Wed, Mar 24 - Tue, Apr 6
Multiple Airlines Logo
10:05 pm - 2:25 pmOPO  Porto-SFO San Francisco
48h 20m2 stops Barcelona-El Prat Lisbon Humberto Delgado
Multiple Airlines Logo
7:25 pm - 6:30 pmSFO  San Francisco-OPO Porto
15h 05m1 stop Zurich
$739Multiple Airlines
Sat, Feb 13 - Sun, Feb 28
Multiple Airlines Logo
8:40 pm - 2:45 pmOPO  Porto-SFO San Francisco
26h 05m2 stops Barcelona-El Prat Lisbon Humberto Delgado
Multiple Airlines Logo
7:25 pm - 6:30 pmSFO  San Francisco-OPO Porto
15h 05m1 stop Zurich
$743Multiple Airlines
Fri, Feb 12 - Sun, Feb 28
Multiple Airlines Logo
2:30 pm - 1:10 pmOPO  Porto-SFO San Francisco
30h 40m2 stops Lisbon Humberto Delgado Rome Fiumicino
Multiple Airlines Logo
3:05 pm - 11:45 pmSFO  San Francisco-OPO Porto
24h 40m1 stop Rome Fiumicino
$756Multiple Airlines
Wed, Nov 25 - Sat, Dec 5

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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
Feb 10
OPO11:55 amPorto
34h 55m
1 stop
SFO2:50 pmSan Francisco
Mar 1
SFO4:45 pmSan Francisco
34h 20m
1 stop
OPO11:05 amPorto
$641
Scandinavian Airlines
Feb 10
OPO11:55 amPorto
34h 55m
1 stop
SFO2:50 pmSan Francisco
Feb 25
SFO4:45 pmSan Francisco
16h 10m
1 stop
OPO4:55 pmPorto
$661
Scandinavian Airlines
Feb 12
OPO5:45 pmPorto
29h 05m
1 stop
SFO2:50 pmSan Francisco
Feb 27
SFO4:45 pmSan Francisco
34h 20m
1 stop
OPO11:05 amPorto
$680

TAP AIR PORTUGAL flights from Porto to San Francisco

Our best TAP AIR PORTUGAL deals on Porto to San Francisco flight tickets
TAP AIR PORTUGAL
Feb 10
OPO7:00 amPorto
15h 45m
1 stop
SFO2:45 pmSan Francisco
Feb 26
SFO7:15 pmSan Francisco
13h 45m
1 stop
OPO5:00 pmPorto
$768
TAP AIR PORTUGAL
Feb 13
OPO7:00 amPorto
15h 45m
1 stop
SFO2:45 pmSan Francisco
Mar 1
SFO4:35 pmSan Francisco
14h 25m
1 stop
OPO3:00 pmPorto
$791
TAP AIR PORTUGAL
Nov 11
OPO7:00 amPorto
15h 45m
1 stop
SFO2:45 pmSan Francisco
Nov 25
SFO4:35 pmSan Francisco
18h 25m
1 stop
OPO7:00 pmPorto
$818

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Wed 2/10

11:55 am-2:50 pm

1 stop34h 55m

San Francisco

Mon 3/1

4:45 pm-11:05 am

1 stop34h 20m

$641

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Fri 2/12

5:45 pm-2:50 pm

1 stop29h 05m

San Francisco

Mon 3/1

4:45 pm-11:05 am

1 stop34h 20m

$661

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Wed 2/10

11:55 am-2:50 pm

1 stop34h 55m

San Francisco

Sat 2/27

4:45 pm-11:05 am

1 stop34h 20m

$661

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Wed 2/10

11:55 am-2:50 pm

1 stop34h 55m

San Francisco

Thu 2/25

4:45 pm-4:55 pm

1 stop16h 10m

$661

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Fri 2/12

5:45 pm-2:50 pm

1 stop29h 05m

San Francisco

Thu 2/25

4:45 pm-4:55 pm

1 stop16h 10m

$680

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Fri 2/12

5:45 pm-2:50 pm

1 stop29h 05m

San Francisco

Sat 2/27

4:45 pm-11:05 am

1 stop34h 20m

$680

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Wed 3/24

11:55 am-3:50 pm

1 stop34h 55m

San Francisco

Tue 4/6

4:45 pm-11:00 am

1 stop34h 15m

$688

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Sat 2/13

10:05 pm-2:25 pm

2 stops48h 20m

San Francisco

Sun 2/28

7:25 pm-6:30 pm

1 stop15h 05m

$739
Quickest round-trip

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Fri 2/12

8:40 pm-2:45 pm

2 stops26h 05m

San Francisco

Sun 2/28

7:25 pm-6:30 pm

1 stop15h 05m

$743

PortoSan Francisco

OPO Porto - SFO San Francisco

OPOSFO

Porto

Wed 11/25

2:30 pm-1:10 pm

2 stops30h 40m

San Francisco

Sat 12/5

3:05 pm-11:45 pm

1 stop24h 40m

$756

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 cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $704.

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

$429

Fastest flight time

15h 45m

Direct flights

None
The best one-way flight to San Francisco from Porto in the past 72 hours is $429. The best round-trip flight deal from Porto to San Francisco found on momondo in the last 72 hours is $641.
The fastest flight from Porto to San Francisco takes 15h 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 15h 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
Hayward
Walnut Creek
Santa Clara
Fremont
Bodega Bay
Berkeley
Sunnyvale
Half Moon Bay
Vallejo
Roseville
Salinas
Sonoma
Milpitas
Burlingame
Palo Alto
Pacific Grove

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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