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$285+ Cheap flights from Sacramento (SMF) 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — OPO
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Sacramento to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) 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 August 20, 2025.

Round-trip from

$614
(United Airlines)

One-way from

$285
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,162
From Sacramento Intl to Porto
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One-way flight from Sacramento Intl to Porto
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Highest demand for flights based on searches. 18% potential increase in price ($217 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Sacramento to Porto

Cheapest flights from Sacramento to Porto
Explore the most affordable flight options available from Sacramento to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This United Airlines deal was found by Cheapflights users on 8/18. 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.
Mon 11/247:00 amSMF - OPO
2 stops18h 30mUnited Airlines
Mon 12/112:30 pmOPO - SMF
2 stops40h 22mUnited Airlines
Deal found 8/18$614
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Sun 11/235:00 amSMF - OPO
2 stops20h 30mUnited Airlines
Wed 12/312:30 pmOPO - SMF
2 stops53h 34mUnited Airlines
Deal found 8/19$619
This KAYAK deal was found by Cheapflights users on 8/19. 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.
Sun 11/2310:34 amSMF - OPO
2 stops27h 51mLufthansa
Mon 12/14:15 pmOPO - SMF
2 stops36h 37mLufthansa
Deal found 8/19$641
This United Airlines deal was found by Cheapflights users on 8/19. 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 11/278:00 amSMF - OPO
2 stops17h 30mUnited Airlines
Tue 12/212:30 pmOPO - SMF
2 stops40h 22mUnited Airlines
Deal found 8/19$664
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 12/36:10 amSMF - OPO
2 stops25h 15mUnited Airlines
Sun 12/76:00 amOPO - SMF
2 stops21h 40mUnited Airlines
Deal found 8/18$666
This Trip.com deal was found by Cheapflights users on 8/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1311:35 pmSMF - OPO
1 stop26h 10mUnited Airlines
Wed 10/2912:35 pmOPO - SMF
2 stops30h 56mUnited Airlines
Deal found 8/20$668
This United Airlines deal was found by Cheapflights users on 8/19. 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 11/278:49 amSMF - OPO
2 stops16h 41mUnited Airlines
Wed 12/312:30 pmOPO - SMF
2 stops53h 34mUnited Airlines
Deal found 8/19$669
This Lufthansa deal was found by Cheapflights users on 8/19. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:45 amSMF - OPO
2 stops22h 40mLufthansa
Sun 12/74:15 pmOPO - SMF
2 stops35h 25mLufthansa
Deal found 8/19$686
This KAYAK deal was found by Cheapflights users on 8/19. 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.
Thu 11/2710:34 amSMF - OPO
2 stops20h 11mLufthansa
Mon 12/14:15 pmOPO - SMF
2 stops36h 37mLufthansa
Deal found 8/19$691
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:45 amSMF - OPO
2 stops24h 10mDelta
Wed 10/296:00 amOPO - SMF
2 stops21h 16mDelta
Deal found 8/20$757
This KLM deal was found by Cheapflights users on 8/18. 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.
Sun 9/2812:45 pmSMF - OPO
2 stops18h 45mKLM
Tue 10/76:50 pmOPO - SMF
2 stops29h 04mKLM
Deal found 8/18$806

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sacramento 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 August 20, 2025.
Use the filters below to find and compare flights from Sacramento to Porto that are best for you.

Fly from

Sacramento

Fly to

Porto

Route

Depart

Return

Price

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 11/25

7:00 am-9:30 am

2 stops18h 30m

Porto

Tue 12/2

12:30 pm-8:52 pm

2 stops40h 22m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 11/25

7:00 am-9:30 am

2 stops18h 30m

Porto

Thu 12/4

12:30 pm-8:47 pm

2 stops40h 17m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 11/24

7:00 am-9:30 am

2 stops18h 30m

Porto

Mon 12/1

12:30 pm-8:52 pm

2 stops40h 22m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sun 11/23

7:00 am-9:30 am

2 stops18h 30m

Porto

Thu 12/4

12:30 pm-8:47 pm

2 stops40h 17m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sun 11/23

7:00 am-9:30 am

2 stops18h 30m

Porto

Tue 12/2

12:30 pm-8:52 pm

2 stops40h 22m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Wed 11/26

5:00 am-9:30 am

2 stops20h 30m

Porto

Thu 12/4

12:30 pm-8:47 pm

2 stops40h 17m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 11/24

5:00 am-9:30 am

2 stops20h 30m

Porto

Thu 12/4

12:30 pm-8:47 pm

2 stops40h 17m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Wed 11/26

6:45 am-9:30 am

2 stops18h 45m

Porto

Tue 12/2

12:30 pm-8:52 pm

2 stops40h 22m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 11/24

7:00 am-9:30 am

2 stops18h 30m

Porto

Tue 12/2

12:30 pm-8:52 pm

2 stops40h 22m

$614

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Wed 11/26

6:45 am-9:30 am

2 stops18h 45m

Porto

Wed 12/3

12:30 pm-10:04 am

2 stops53h 34m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 16 results
1
2

Best time to book a flight from Sacramento to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Sacramento 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 Sacramento to Porto

What is the cheapest month to book a flight from Sacramento to Porto?

Currently, January is the cheapest month in which you can book a flight from Sacramento to Porto (average of $523). Flying from Sacramento to Porto in June is currently the most expensive (average of $1,030). 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.

What is the cheapest time of day to fly from SMF to OPO?

Find hourly flight availability from Sacramento to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

It’s typically best to fly out from Sacramento to Porto in the morning. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated August 20, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Air Canada from Sacramento to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Sacramento 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 Sacramento to Porto?

    A quick flight from Sacramento to Porto can take about 18h 30m. United Airlines provides one of the quickest options available for as low as $614. There are 5483 mi between Sacramento and Porto.

  • What are the cheapest airlines flying from Sacramento to Porto round-trip?

    Cheapflights users have booked flights from Sacramento to Porto round-trip from $681. Other airlines that can offer you cheap pricing are Delta, from $726, and United Airlines, from $757.

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

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

  • How can I find direct flights from Sacramento to Porto?

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

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

    Yes. Cheapflights offers flight deals from Sacramento 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 Sacramento to Porto?

    Currently, January is the cheapest month in which you can book a flight from Sacramento to Porto (average of $523). Flying from Sacramento to Porto in June is currently the most expensive (average of $1,030). 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
Aveiro
Arcos de Valdevez
Coimbra

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Top 3 airlines flying from Sacramento to Porto

Discover the top 3 airlines that operate flights from Sacramento to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$681Average$1,090FlexibilityNo cancel feeOn-time67%
DeltaCheapest$726Average$776FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$757Average$1,071FlexibilityNo cancel feeOn-time69%

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