$336 Cheap flight deals from San Francisco (SJC) to Porto (OPO)

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This Weekend's Flight Deals from San Francisco to Porto

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 27 - Tue, Oct 6
SFO
San Francisco Intl.
OPO
Dr. Francisco de Sa Carneiro
$816 Roundtrip, found 3 days ago
$816
Roundtrip
found 3 days ago
Select Iberia flight, departing Sun, Sep 27 from San Francisco Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Oct 6, priced at $816 found 3 days ago
Sun, Sep 27 - Sat, Oct 3
SJC
Norman Y. Mineta San Jose Intl.
OPO
Dr. Francisco de Sa Carneiro
$1,421 Roundtrip, found 5 days ago
$1,421
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Sep 27 from Norman Y. Mineta San Jose Intl. to Dr. Francisco de Sa Carneiro, returning Sat, Oct 3, priced at $1,421 found 5 days ago

Airfares from $336 One Way, $595 Round Trip from San Francisco to Porto

Prices starting at $595 for return flights and $336 for one-way flights to Porto were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 28 - Fri, Feb 5
SFO
San Francisco
OPO
Porto
$595 Roundtrip, found 2 days ago
$595
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Thu, Jan 28 from San Francisco to Porto, returning Fri, Feb 5, priced at $595 found 2 days ago
Sun, Apr 25 - Tue, May 4
SFO
San Francisco
OPO
Porto
$604 Roundtrip, found 3 days ago
$604
Roundtrip
found 3 days ago
Select Iberia flight, departing Sun, Apr 25 from San Francisco to Porto, returning Tue, May 4, priced at $604 found 3 days ago
Wed, Apr 14 - Fri, Apr 23
SFO
San Francisco
OPO
Porto
$610 Roundtrip, found 3 days ago
$610
Roundtrip
found 3 days ago
Select British Airways flight, departing Wed, Apr 14 from San Francisco to Porto, returning Fri, Apr 23, priced at $610 found 3 days ago
Tue, Oct 27 - Tue, Nov 3
SFO
San Francisco
OPO
Porto
$610 Roundtrip, found 4 days ago
$610
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 27 from San Francisco to Porto, returning Tue, Nov 3, priced at $610 found 4 days ago
Tue, Oct 27 - Tue, Nov 3
SFO
San Francisco
OPO
Porto
$623 Roundtrip, found 4 days ago
$623
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Oct 27 from San Francisco to Porto, returning Tue, Nov 3, priced at $623 found 4 days ago

Porto economy flight packages

Price found within the past 48 hours. Click for updated prices.
YOUROPO - Ribeira Porto
4.0-star property

YOUROPO - Ribeira Porto

9.6/10 Exceptional! (151 reviews)

Nov 13 - Nov 19

6 night stay

San Francisco (SFO) to Porto (OPO)

British Airways • Non-stop roundtrip • Coach
Price was $1,469, price is now $1,038 per person
$1,038
per person
found 7 hours ago
Amazing room and views! Super clean and spacious

Reviewed on Sep 20, 2026

LENSCAPE Coterie
5.0-star property

LENSCAPE Coterie

10/10 Exceptional! (15 reviews)

Nov 13 - Nov 19

6 night stay

San Francisco (SFO) to Porto (OPO)

British Airways • Non-stop roundtrip • Coach
Price was $1,735, price is now $1,164 per person
$1,164
per person
found 7 hours ago
Gorgeous, stylish hotel in a brilliant location. Great breakfast available. Pool area was a real bonus too, after a hot day sightseeing. Staff were really friendly and welcoming. Will definitely stay there again if we return to Porto! Thank you Lenscape.

Reviewed on Sep 18, 2026

Torel Private Collection
5.0-star property

Torel Private Collection

9.8/10 Exceptional! (48 reviews)

Nov 13 - Nov 19

6 night stay

San Francisco (SFO) to Porto (OPO)

British Airways • Non-stop roundtrip • Coach
Price was $2,009, price is now $1,388 per person
$1,388
per person
found 7 hours ago
If you are looking for a hotel with great support and help from the staff this is it! This is the reason why we prefer hotels and not short-term rentals and the staff lived up to expectations. It also is a new and stylish hotel that is a little away from the crazy crowds which we loved as well! A must visit! Kevin

Reviewed on Sep 17, 2026

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More About Flying To Porto from San Francisco

Route Information for Flights from San Francisco to Porto

Origin Airport IATA Code
SJC
Destination Airport IATA Code
OPO
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Frequently asked questions

What is the shortest flight from San Francisco to Porto?
It's a considerable distance from San Francisco Intl. Airport (SFO) to Porto Airport — 11 hours and 55 minutes at least. But your time in your seat doesn't have to be torture. Be prepared and come with the essentials like a sweater and a travel pillow.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.