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Cheap flights from San Francisco to Porto from $279

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 Porto departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Francisco to Porto

Cheap round-trip flights

These are some of the best round-trip flight deals from San Francisco to Porto that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from San Francisco to Porto.

Cheap last minute flights

Planning a quick getaway from San Francisco to Porto? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Porto, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from San Francisco to Porto

Find recent round-trip train or bus tickets from San Francisco to Porto.

All round-trip flight deals to Porto

The cheapest plane tickets to Porto found on KAYAK recently.
2:40 pm - 6:50 amSFO-OPO
32h 10m3 stops
3:55 pm - 4:25 pmOPO-SFO
32h 30m2 stops
Wed, Jan 15 - Wed, Jan 22
7:25 pm - 6:50 amSFO-OPO
27h 25m3 stops
3:55 pm - 4:25 pmOPO-SFO
32h 30m2 stops
Wed, Jan 8 - Wed, Jan 15
7:15 pm - 8:00 amSFO-OPO
28h 45m1 stop
6:50 am - 2:40 pmOPO-SFO
15h 50m1 stop
$689TAP AIR PORTUGAL
Find Deal
Fri, Jan 31 - Wed, Feb 19
4:35 pm - 5:00 pmSFO-OPO
16h 25m1 stop
6:50 am - 2:40 pmOPO-SFO
15h 50m1 stop
$740TAP AIR PORTUGAL
Find Deal
Wed, Jan 15 - Wed, Jan 22
1:29 pm - 3:30 pmSFO-OPO
18h 01m2 stops
4:20 pm - 11:45 amOPO-SFO
27h 25m1 stop
$899KLM
Find Deal
Sun, Mar 30 - Sun, Apr 6
7:25 pm - 11:10 amSFO-OPO
31h 45m1 stop
12:00 pm - 4:25 pmOPO-SFO
36h 25m1 stop
$926SWISS
Find Deal
Thu, Jan 16 - Mon, Jan 27
7:25 pm - 11:15 amSFO-OPO
31h 50m1 stop
12:00 pm - 4:25 pmOPO-SFO
36h 25m1 stop
$938SWISS
Find Deal
Tue, Jan 7 - Mon, Jan 20
7:10 am - 10:30 amSFO-OPO
20h 20m2 stops
6:25 am - 11:45 amOPO-SFO
37h 20m1 stop
$1,078KLM
Find Deal
Fri, Mar 28 - Wed, Apr 2
12:32 am - 9:45 amSFO-OPO
25h 13m2 stops
12:10 pm - 4:05 pmOPO-SFO
35h 55m1 stop
$1,226United Airlines
Find Deal
Tue, Apr 15 - Mon, Apr 28
12:32 am - 9:45 amSFO-OPO
25h 13m2 stops
12:35 pm - 11:15 amOPO-SFO
30h 40m2 stops
$1,242United Airlines
Find Deal
Sat, Mar 29 - Sun, Apr 6
6:55 am - 10:55 pmSFO-OPO
56h 00m3 stops
Wed, Jan 22
4:35 pm - 10:40 amSFO-OPO
34h 05m2 stops
Wed, Jan 22
4:35 pm - 6:00 pmSFO-OPO
17h 25m1 stop
$381TAP AIR PORTUGAL
Find Deal
Wed, Jan 22
4:20 pm - 7:00 pmSFO-OPO
18h 40m1 stop
$525TAP AIR PORTUGAL
Find Deal
Sat, May 3
5:15 am - 9:45 amSFO-OPO
20h 30m2 stops
$757United Airlines
Find Deal
Mon, Apr 28
12:32 am - 9:45 amSFO-OPO
25h 13m2 stops
$763United Airlines
Find Deal
Sun, Apr 27
3:00 pm - 3:30 pmSFO-OPO
16h 30m1 stop
$964Delta
Find Deal
Wed, May 21
2:45 pm - 3:30 pmSFO-OPO
16h 45m2 stops
$969KLM
Find Deal
Tue, May 20
2:45 pm - 3:30 pmSFO-OPO
16h 45m2 stops
$1,019KLM
Find Deal
Mon, May 19
8:59 am - 3:30 pmSFO-OPO
22h 31m2 stops
$1,069Delta
Find Deal
Sat, May 17
7:25 pm - 7:50 amSFO-OPO
28h 25m1 stop
8:20 am - 3:00 pmOPO-SFO
38h 40m2 stops
$2,258
Find Deal
Thu, Dec 19 - Tue, Feb 4
12:50 pm - 12:50 pmSFO-OPO
40h 00m2 stops
12:25 pm - 3:00 pmOPO-SFO
34h 35m2 stops
$2,292
Find Deal
Thu, Dec 19 - Tue, Feb 4
7:25 pm - 7:50 amSFO-OPO
28h 25m1 stop
4:25 pm - 4:45 pmOPO-SFO
32h 20m1 stop
$2,321
Find Deal
Thu, Dec 19 - Tue, Feb 4
8:40 pm - 7:40 amSFO-OPO
27h 00m2 stops
12:25 pm - 12:22 amOPO-SFO
19h 57m2 stops
$2,671Iberia
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Thu, Dec 19 - Tue, Feb 4
8:15 am - 5:00 pmSFO-OPO
24h 45m2 stops
12:05 pm - 4:25 pmOPO-SFO
36h 20m1 stop
$2,692
Find Deal
Thu, Dec 19 - Tue, Feb 4
6:50 pm - 9:40 amSFO-OPO
30h 50m1 stop
4:25 pm - 4:45 pmOPO-SFO
32h 20m1 stop
$2,698Turkish Airlines
Find Deal
Thu, Dec 19 - Tue, Feb 4
8:35 pm - 10:25 pmSFO-OPO
17h 50m2 stops
6:30 am - 7:01 pmOPO-SFO
20h 31m2 stops
$2,969Lufthansa
Find Deal
Sun, Dec 22 - Fri, Jan 3
2:40 pm - 10:25 pmSFO-OPO
23h 45m1 stop
6:30 am - 6:45 pmOPO-SFO
20h 15m1 stop
$3,075Lufthansa
Find Deal
Sun, Dec 22 - Fri, Jan 3
7:25 pm - 6:35 pmSFO-OPO
15h 10m1 stop
8:40 am - 4:25 pmOPO-SFO
15h 45m1 stop
$4,535SWISS
Find Deal
Mon, Dec 23 - Sat, Jan 4
4:40 pm - 3:00 pmSFO-OPO
14h 20m1 stop
3:55 pm - 2:55 pmOPO-SFO
31h 00m1 stop
$6,784TAP AIR PORTUGAL
Find Deal
Mon, Dec 23 - Fri, Jan 3

Air Transat flights from San Francisco to Porto

Our best Air Transat deals on San Francisco to Porto flight tickets
Air Transat
Jan 10
SFO1:35 pmSan Francisco
33h 30m
1 stop
OPO7:05 amPorto
Jan 19
OPO8:50 amPorto
35h 34m
1 stop
SFO12:24 pmSan Francisco
Air Transat
Feb 25
SFO1:35 pmSan Francisco
33h 30m
1 stop
OPO7:05 amPorto
Jun 5
OPO1:30 pmPorto
31h 52m
1 stop
SFO1:22 pmSan Francisco
Air Transat
Dec 27
SFO1:40 pmSan Francisco
33h 25m
1 stop
OPO7:05 amPorto
Jan 2
OPO8:50 amPorto
35h 49m
1 stop
SFO12:39 pmSan Francisco

Turkish Airlines flights from San Francisco to Porto

Our best Turkish Airlines deals on San Francisco to Porto flight tickets
Turkish Airlines
Apr 27
SFO6:50 pmSan Francisco
30h 55m
1 stop
OPO9:45 amPorto
May 10
OPO4:50 pmPorto
31h 55m
1 stop
SFO4:45 pmSan Francisco
Turkish Airlines
Apr 9
SFO12:35 pmSan Francisco
19h 15m
1 stop
OPO3:50 pmPorto
Apr 22
OPO10:45 amPorto
31h 45m
1 stop
SFO10:30 amSan Francisco
Turkish Airlines
May 13
SFO6:50 pmSan Francisco
30h 55m
1 stop
OPO9:45 amPorto
Jun 10
OPO4:50 pmPorto
25h 40m
1 stop
SFO10:30 amSan Francisco

See travel insights to Porto from

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

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 Porto?

The month of February is, on average, the cheapest month to fly to Porto from San Francisco, with most prices found around $732. If you aren’t able to travel during the month of February, then book flights to Porto from San Francisco during January instead. Flights to Porto in January, while not as cheap as those in February, still average around $735.

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

The cheapest day to depart on your flight to Porto is on a Sunday when prices can be found for as low as $989. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,157. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

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

In the afternoon is the cheapest time of day to fly from San Francisco to Porto when you can find flight prices for as low as $892. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,137 on average. Flights to Porto from San Francisco in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

In general, most travelers find the cheapest time to book a flight to Porto is about 56 days prior to their departure date when tickets on average are $986. In the past 72 hours, momondo users found flights from San Francisco to Porto for as low as $376.

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

You could potentially save up to 21% on your flight if you consider stops on a San Francisco to Porto flight.

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

As of December 2024, prices for San Francisco to Porto flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Porto

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

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

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

Best Price Found

$279

Fastest flight time

13h 45m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from San Francisco in the past 72 hours is $279. The best round-trip flight deal from San Francisco to Porto found on momondo in the last 72 hours is $659.
The fastest flight from San Francisco to Porto takes 13h 45m
There are no direct flights from San Francisco to Porto. Popular non-direct route for this connection is San Francisco Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)

  • How far is San Francisco to Porto by plane?

    Porto is 5565.0 mi away from San Francisco. Typically, this will take 13h 45m by plane in normal conditions.

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

    Prices for flights from San Francisco Airport to Porto Airport were last updated today.

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

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

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

    The necessary travel and health documents for your Porto 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.

  • What is the most popular airline from San Francisco to Porto?


Best airlines flying from San Francisco to Porto

Compare and see reviews for airlines that fly from San Francisco to Porto with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $376Free CancellationRating
7.1
1,877 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $559Free CancellationRating
8.0
8,604 reviews
Search Delta flights
IberiaPriceFrom $563Free CancellationRating
7.0
2,656 reviews
Search Iberia flights
American AirlinesPriceFrom $617Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $666Free CancellationRating
7.0
8,382 reviews
Search Air Canada flights
KLMPriceFrom $702Free CancellationRating
7.8
1,349 reviews
Search KLM flights
United AirlinesPriceFrom $706Free CancellationRating
7.4
9,055 reviews
Search United Airlines flights
SWISSPriceFrom $724Free CancellationRating
7.6
1,606 reviews
Search SWISS flights
VuelingPriceFrom $729Free CancellationRating
7.1
1,193 reviews
Search Vueling flights
LufthansaPriceFrom $807Free CancellationRating
6.8
7,091 reviews
Search Lufthansa flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Porto from San Francisco.

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

Flights from San Francisco to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential San Francisco to Porto 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 San Francisco to Porto right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto, momondo offers a useful price alert feature which will track prices for flights to Porto from San Francisco and alert you when they change.


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