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$665+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — OPO
May 21 — May 281
Thu 5/21
Thu 5/28
1 adult, Economy
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Cheap 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 April 21, 2026.

This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sun 12/65:25 am
SMF
-
OPO
2 stops25h 50m
United Airlines
Thu 12/106:00 am
OPO
-
SMF
2 stops25h 28m
United Airlines
Deal found 4/20$767
This Air France deal was found by Cheapflights users on 4/16. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:35 am
SMF
-
OPO
2 stops18h 55m
Multiple Airlines
Fri 11/275:00 am
OPO
-
SMF
2 stops19h 30m
Multiple Airlines
Deal found 4/16$803
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Mon 11/167:00 am
SMF
-
OPO
2 stops18h 30m
United Airlines
Sun 11/2212:35 pm
OPO
-
SMF
1 stop16h 30m
United Airlines
Deal found 4/20$805
This Air France deal was found by Cheapflights users on 4/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:00 am
SMF
-
OPO
2 stops19h 30m
Multiple Airlines
Sun 11/225:40 am
OPO
-
SMF
2 stops20h 54m
Multiple Airlines
Deal found 4/20$810
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Tue 9/2210:14 am
SMF
-
OPO
3 stops36h 46m
United Airlines
Wed 9/3012:45 pm
OPO
-
SMF
2 stops39h 59m
United Airlines
Deal found 4/19$832
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 pm
SMF
-
OPO
2 stops53h 00m
Air Canada
Wed 10/2112:45 pm
OPO
-
SMF
2 stops36h 36m
Air Canada
Deal found 4/17$841
This Delta deal was found by Cheapflights users on 4/17. 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.
Tue 9/292:15 pm
SMF
-
OPO
2 stops23h 50m
Delta
Wed 10/145:00 am
OPO
-
SMF
2 stops19h 27m
Delta
Deal found 4/17$846
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 pm
SMF
-
OPO
2 stops53h 00m
Air Canada
Thu 10/1511:40 am
OPO
-
SMF
2 stops41h 30m
Air Canada
Deal found 4/17$849
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/56:37 pm
SMF
-
OPO
2 stops28h 23m
United Airlines
Thu 10/1512:35 pm
OPO
-
SMF
1 stop17h 01m
United Airlines
Deal found 4/17$852
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/411:55 pm
SMF
-
OPO
2 stops25h 50m
United Airlines
Thu 10/1512:35 pm
OPO
-
SMF
1 stop17h 01m
United Airlines
Deal found 4/17$854
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 pm
SMF
-
OPO
2 stops53h 00m
Air Canada
Tue 10/2012:15 pm
OPO
-
SMF
2 stops53h 18m
Air Canada
Deal found 4/17$856
This Delta deal was found by Cheapflights users on 4/17. 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 10/311:10 am
SMF
-
OPO
2 stops39h 15m
Delta
Wed 10/145:00 am
OPO
-
SMF
2 stops19h 27m
Delta
Deal found 4/17$858

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 April 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$832
(United Airlines)

One-way from

$665
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$840
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. 28% potential increase in price ($373 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($85 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 21, 2026.
Use the filters below to find and compare flights from Sacramento to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 9/22

8:19 pm-7:00 am

2 stops26h 41m

Porto

Wed 9/30

12:45 pm-8:44 pm

2 stops39h 59m

$832
Quickest round-trip

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 9/29

6:15 am-10:30 am

2 stops20h 15m

Porto

Tue 10/13

5:00 am-8:23 pm

2 stops23h 23m

$846

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 10/3

5:10 pm-10:25 am

2 stops33h 15m

Porto

Tue 10/13

5:00 am-7:30 pm

2 stops22h 30m

$858

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 10/3

5:10 pm-10:25 am

2 stops33h 15m

Porto

Fri 10/16

12:45 pm-12:25 pm

2 stops31h 40m

$871

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Fri 10/2

10:40 pm-10:20 am

2 stops27h 40m

Porto

Fri 10/16

12:45 pm-10:53 am

2 stops30h 08m

$925

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 5/2

2:42 pm-10:00 pm

2 stops23h 18m

Porto

Sat 5/23

5:00 am-6:35 pm

2 stops21h 35m

$1,069

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Wed 6/3

5:00 am-9:45 am

2 stops20h 45m

Porto

Thu 6/25

11:50 am-3:10 pm

2 stops35h 20m

$1,168
Cheapest one-way

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Fri 7/10

5:37 pm-11:20 pm

3 stops45h 43m

$704

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 7/6

6:00 am-10:30 am

2 stops20h 30m

$707
Quickest one-way

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Fri 7/10

7:50 am-10:30 am

2 stops18h 40m

$767

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 14 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*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 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 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

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 April 21, 2026.
Read reviews from past customers who have flown United Airlines 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.
United Airlines
7.4
Good
9,613 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,613 reviews
United Airlines
7.4
Good
9,613 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 17h 20m. United Airlines provides one of the quickest options available for as low as $865. There are 5483 mi between Sacramento and Porto. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Sacramento to Porto round-trip?

    Cheapflights users have booked flights from Sacramento to Porto round-trip from $708. This flight start at 24% 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.

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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Top airline flying from Sacramento to Porto

Discover the top airline 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 April 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$708Average$1,071FlexibilityNo cancel feeOn-time69%

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