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$457+ Cheap flights from San Jose, CA (SJC) to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — OPO
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from San Jose to Porto

Cheapest flights from San Jose to Porto
Explore the most affordable flight options available from San Jose to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This KLM deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:45 am
SJC
-
OPO
2 stops23h 05m
KLM
Mon 3/94:10 pm
OPO
-
SJC
2 stops30h 56m
KLM
Deal found 1/25$848
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:40 am
SJC
-
OPO
2 stops18h 50m
United Airlines
Tue 11/176:00 am
OPO
-
SJC
2 stops23h 11m
United Airlines
Deal found 1/25$891
This KLM deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/129:15 am
SJC
-
OPO
2 stops23h 10m
KLM
Thu 3/195:00 am
OPO
-
SJC
2 stops19h 25m
KLM
Deal found 1/26$899
This Gotogate deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:20 pm
SJC
-
OPO
2 stops44h 00m
British Airways
Mon 4/139:10 pm
OPO
-
SJC
2 stops45h 08m
British Airways
Deal found 1/26$1,048
This Travelocity deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:05 pm
SJC
-
OPO
2 stops54h 40m
Multiple Airlines
Sun 4/124:40 pm
OPO
-
SJC
2 stops57h 31m
Multiple Airlines
Deal found 1/26$1,083
This oojo deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:17 pm
SJC
-
OPO
2 stops37h 28m
Iberia
Tue 12/158:20 am
OPO
-
SJC
2 stops20h 25m
Iberia
Deal found 1/25$1,115
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:20 pm
SJC
-
OPO
2 stops44h 00m
British Airways
Sun 4/129:25 pm
OPO
-
SJC
2 stops44h 53m
British Airways
Deal found 1/26$1,120
This KAYAK deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:33 am
SJC
-
OPO
2 stops39h 27m
Scandinavian Airlines
Thu 8/2011:50 am
OPO
-
SJC
2 stops39h 15m
Scandinavian Airlines
Deal found 1/25$1,127
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:55 pm
SJC
-
OPO
2 stops29h 45m
United Airlines
Thu 3/196:00 am
OPO
-
SJC
2 stops23h 59m
United Airlines
Deal found 1/26$1,156
This Priceline deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/251:50 pm
SJC
-
OPO
2 stops37h 10m
Scandinavian Airlines
Wed 8/1911:50 am
OPO
-
SJC
2 stops41h 55m
Scandinavian Airlines
Deal found 1/25$1,167
This KAYAK deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:15 am
SJC
-
OPO
2 stops25h 50m
Scandinavian Airlines
Thu 8/2011:50 am
OPO
-
SJC
2 stops39h 15m
Scandinavian Airlines
Deal found 1/25$1,177
This British Airways deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:11 pm
SJC
-
OPO
2 stops22h 19m
British Airways
Mon 8/179:10 pm
OPO
-
SJC
2 stops34h 24m
British Airways
Deal found 1/25$1,245

Find flight deals from San Jose to Porto

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$843
(Delta)

One-way from

$457
(United Airlines)
Provider with most accurate pricing for San Jose-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Jose-Porto flights.
Search Deals
From San Jose to Porto
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One-way flight from San Jose to Porto
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from San Jose to Porto that are best for you.

Fly from

San Jose

Fly to

Porto

Route

Depart

Return

Price

San JosePorto

SJC - OPO

SJCOPO

San Jose

Mon 3/2

11:45 am-6:50 pm

2 stops23h 05m

Porto

Mon 3/9

4:10 pm-4:06 pm

2 stops30h 56m

$848

San JosePorto

SJC - OPO

SJCOPO

San Jose

Thu 3/12

9:15 am-3:25 pm

2 stops23h 10m

Porto

Thu 3/19

5:00 am-5:25 pm

2 stops19h 25m

$899

San JosePorto

SJC - OPO

SJCOPO

San Jose

Sat 4/4

4:20 pm-8:20 pm

2 stops44h 00m

Porto

Mon 4/13

9:10 pm-10:18 am

2 stops45h 08m

$1,048

San JosePorto

SJC - OPO

SJCOPO

San Jose

Sun 4/5

7:05 pm-9:45 am

2 stops54h 40m

Porto

Sun 4/12

4:40 pm-6:11 pm

2 stops57h 31m

$1,083

San JosePorto

SJC - OPO

SJCOPO

San Jose

Sat 4/4

4:20 pm-8:20 pm

2 stops44h 00m

Porto

Sun 4/12

9:25 pm-10:18 am

2 stops44h 53m

$1,120

San JosePorto

SJC - OPO

SJCOPO

San Jose

Thu 3/12

10:55 pm-11:40 am

2 stops29h 45m

Porto

Thu 3/19

6:00 am-10:59 pm

2 stops23h 59m

$1,156

San JosePorto

SJC - OPO

SJCOPO

San Jose

Tue 5/26

1:11 pm-7:30 pm

2 stops22h 19m

Porto

Mon 8/17

9:10 pm-11:34 pm

2 stops34h 24m

$1,245

San JosePorto

SJC - OPO

SJCOPO

San Jose

Wed 5/27

9:05 am-3:25 pm

2 stops22h 20m

Porto

Fri 8/21

5:00 am-6:17 pm

2 stops21h 17m

$1,262

San JosePorto

SJC - OPO

SJCOPO

San Jose

Sun 5/24

3:45 pm-10:00 pm

2 stops22h 15m

Porto

Fri 8/21

5:00 am-4:16 pm

2 stops19h 16m

$1,262

San JosePorto

SJC - OPO

SJCOPO

San Jose

Sun 2/22

11:01 am-4:00 pm

2 stops20h 59m

Porto

Fri 2/27

8:40 pm-10:11 am

2 stops21h 31m

$1,263

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 23 results
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  • Most accurate provider: When it comes to deals on San Jose, California-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose, California-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose, California-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Jose, California-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Jose, California-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Jose to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from San Jose with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Jose to Porto

What is the cheapest month to book a flight from San Jose, California to Porto?

Currently, March is the cheapest month in which you can book a flight from San Jose, California to Porto (average of $468). Flying from San Jose, California to Porto in July is currently the most expensive (average of $807). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Jose to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Jose, California to Porto?

    KLM and British Airways can get you from San Jose, California to Porto in just under 23h 05m. Your travel time can differ by up to 20h 55m. There are 5561 mi between San Jose, California and Porto. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from San Jose to Porto that include hotel bookings?

    Yes. In addition to deals on San Jose to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Jose to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Jose to Porto.

  • Can I find deals for business class flights from San Jose to Porto?

    Yes. Cheapflights offers flight deals from San Jose to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Jose, California to Porto?

    Currently, March is the cheapest month in which you can book a flight from San Jose, California to Porto (average of $468). Flying from San Jose, California to Porto in July is currently the most expensive (average of $807). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

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