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$331+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — OPO
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Sacramento to Porto

Best flights from Sacramento to Porto
Discover carefully curated flight deals from Sacramento to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This Delta deal was found by Cheapflights users on 12/21. 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.
Sun 1/186:00 amSMF - OPO
2 stops20h 30mDelta
Sat 1/315:00 amOPO - SMF
2 stops23h 58mDelta
Deal found 12/21$483
This United Airlines deal was found by Cheapflights users on 12/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:30 pmSMF - OPO
2 stops34h 15mUnited Airlines
Sun 2/812:30 pmOPO - SMF
2 stops39h 09mUnited Airlines
Deal found 12/20$527
This Expedia deal was found by Cheapflights users on 12/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 amSMF - OPO
2 stops22h 05mBrussels Airlines
Tue 3/3112:55 pmOPO - SMF
2 stops39h 59mBrussels Airlines
Deal found 12/23$537
This KLM deal was found by Cheapflights users on 12/21. 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 3/511:45 amSMF - OPO
2 stops19h 40mKLM
Tue 3/315:00 amOPO - SMF
2 stops22h 09mKLM
Deal found 12/21$549
This FlightHub deal was found by Cheapflights users on 12/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 amSMF - OPO
2 stops44h 00mScandinavian Airlines
Sat 5/99:30 amOPO - SMF
2 stops45h 20mScandinavian Airlines
Deal found 12/21$752
This Delta deal was found by Cheapflights users on 12/22. 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.
Thu 3/56:40 amSMF - OPO
2 stops24h 45mDelta
Tue 3/315:00 amOPO - SMF
2 stops22h 13mDelta
Deal found 12/22$549
This KLM deal was found by Cheapflights users on 12/21. 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 5/312:49 pmSMF - OPO
2 stops21h 21mKLM
Sun 5/245:00 amOPO - SMF
2 stops19h 28mKLM
Deal found 12/21$750
This Delta deal was found by Cheapflights users on 12/21. 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.
Sat 5/212:49 pmSMF - OPO
2 stops25h 11mDelta
Sat 5/236:30 amOPO - SMF
2 stops24h 20mDelta
Deal found 12/21$812

Find 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 December 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$483
(Delta)

One-way from

$331
(Delta)

Popular in

July

Cheapest in

December

Average price

$591
Provider with most accurate pricing for Sacramento Intl-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sacramento Intl-Porto flights.
Search Deals
From Sacramento Intl to Porto
Search Deals
One-way flight from Sacramento Intl to Porto
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($332 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 23, 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

Sun 1/18

6:00 am-10:30 am

2 stops20h 30m

Porto

Sat 1/31

5:00 am-8:58 pm

2 stops23h 58m

$483

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Wed 2/4

8:30 pm-2:45 pm

2 stops34h 15m

Porto

Sun 2/8

12:30 pm-7:39 pm

2 stops39h 09m

$527

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 3/10

7:00 am-12:05 pm

2 stops22h 05m

Porto

Tue 3/31

12:55 pm-8:54 pm

2 stops39h 59m

$537

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 3/5

11:45 am-3:25 pm

2 stops19h 40m

Porto

Tue 3/31

5:00 am-7:09 pm

2 stops22h 09m

$549

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 3/5

6:40 am-3:25 pm

2 stops24h 45m

Porto

Tue 3/31

5:00 am-7:13 pm

2 stops22h 13m

$549

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sun 5/3

12:49 pm-6:10 pm

2 stops21h 21m

Porto

Sun 5/24

5:00 am-4:28 pm

2 stops19h 28m

$750

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 4/25

7:00 am-11:00 am

2 stops44h 00m

Porto

Sat 5/9

9:30 am-10:50 pm

2 stops45h 20m

$752

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 5/2

12:49 pm-10:00 pm

2 stops25h 11m

Porto

Sat 5/23

6:30 am-10:50 pm

2 stops24h 20m

$812

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sun 4/19

11:23 am-6:10 pm

2 stops22h 47m

$331

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sun 4/19

11:41 pm-9:50 am

1 stop26h 09m

$942

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 12 results
1
2

Compare providers for flights from Sacramento to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sacramento to Porto in December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sacramento-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sacramento-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sacramento-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sacramento-Porto flights, Cheapflights users trust AranGrant the most. AranGrant 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 Sacramento-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 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 $544). Flying from Sacramento to Porto in July is currently the most expensive (average of $806). 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 December 23, 2025.

It’s typically best to fly out from Sacramento to Porto in the afternoon. Doing so could potentially save you 48% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Sacramento to Porto?

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 December 23, 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
7.9
Good
8,014 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

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
7.9
Good
8,014 reviews
Delta
7.9
Good
8,014 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

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
9,103 reviews
Delta
7.9
Good
8,014 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

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
10,551 reviews
Delta
7.9
Good
8,014 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

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 20h 30m. Delta provides one of the quickest options available for as low as $483. There are 5483 mi between Sacramento and Porto. This flight may include one or multiple stops.

  • 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 $777. These flights start at 26% lower than the current average price 3 months from now.

  • 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 $544). Flying from Sacramento to Porto in July is currently the most expensive (average of $806). 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
Vila Nova de Gaia

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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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$681Average$1,090FlexibilityNo cancel feeOn-time67%
DeltaCheapest$726Average$776FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$777Average$1,071FlexibilityNo cancel feeOn-time69%

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