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$348+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — OPO
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
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 May 10, 2026.

This United Airlines deal was found by Cheapflights users on 5/8. 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.
Sat 10/316:20 pm
SMF
-
OPO
2 stops32h 10m
United Airlines
Fri 11/136:00 am
OPO
-
SMF
2 stops20h 35m
United Airlines
Deal found 5/8$751
This United Airlines deal was found by Cheapflights users on 5/8. 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 11/111:00 pm
SMF
-
OPO
1 stop26h 30m
United Airlines
Wed 11/116:00 am
OPO
-
SMF
2 stops20h 35m
United Airlines
Deal found 5/8$752
This United Airlines deal was found by Cheapflights users on 5/8. 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 11/311:00 pm
SMF
-
OPO
1 stop26h 30m
United Airlines
Tue 11/1012:30 pm
OPO
-
SMF
2 stops38h 05m
United Airlines
Deal found 5/8$758
This United Airlines deal was found by Cheapflights users on 5/6. 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 11/25:25 am
SMF
-
OPO
2 stops20h 05m
United Airlines
Thu 11/512:35 pm
OPO
-
SMF
1 stop16h 30m
United Airlines
Deal found 5/6$759
This United Airlines deal was found by Cheapflights users on 5/8. 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.
Sat 10/3111:00 pm
SMF
-
OPO
1 stop27h 30m
United Airlines
Thu 11/1212:35 pm
OPO
-
SMF
1 stop16h 30m
United Airlines
Deal found 5/8$761
This Delta deal was found by Cheapflights users on 5/8. 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.
Fri 10/3010:40 pm
SMF
-
OPO
2 stops51h 25m
Delta
Tue 11/105:00 am
OPO
-
SMF
2 stops19h 02m
Delta
Deal found 5/8$763
This United Airlines deal was found by Cheapflights users on 5/6. 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 11/410:25 am
SMF
-
OPO
2 stops20h 50m
United Airlines
Thu 11/1212:35 pm
OPO
-
SMF
1 stop16h 30m
United Airlines
Deal found 5/6$775
This FlightHub deal was found by Cheapflights users on 5/8. 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.
Mon 11/27:00 am
SMF
-
OPO
2 stops44h 05m
Scandinavian Airlines
Mon 11/911:55 am
OPO
-
SMF
2 stops42h 21m
Scandinavian Airlines
Deal found 5/8$789
This Delta deal was found by Cheapflights users on 5/6. 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 10/2910:40 pm
SMF
-
OPO
2 stops26h 25m
Delta
Wed 11/1111:15 am
OPO
-
SMF
2 stops36h 47m
Delta
Deal found 5/6$802
This KAYAK deal was found by Cheapflights users on 5/6. 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 11/311:00 pm
SMF
-
OPO
1 stop26h 30m
SWISS
Wed 11/117:20 pm
OPO
-
SMF
2 stops35h 15m
SWISS
Deal found 5/6$803
This KAYAK deal was found by Cheapflights users on 5/8. 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 10/2910:25 am
SMF
-
OPO
2 stops30h 30m
Lufthansa
Wed 11/116:00 am
OPO
-
SMF
2 stops20h 35m
Lufthansa
Deal found 5/8$804
This Delta deal was found by Cheapflights users on 5/8. 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 11/36:00 am
SMF
-
OPO
2 stops25h 25m
Delta
Sun 11/811:15 am
OPO
-
SMF
2 stops36h 47m
Delta
Deal found 5/8$807

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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$751
(United Airlines)

One-way from

$348
(United Airlines)

Popular in

July

Cheapest in

December

Average price

$928
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 ($336 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($86 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 10, 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

Wed 11/4

5:25 am-9:30 am

2 stops20h 05m

Porto

Fri 11/13

6:00 am-9:05 pm

2 stops23h 05m

$751

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 10/31

6:20 pm-9:30 am

2 stops32h 10m

Porto

Thu 11/12

12:30 pm-11:28 pm

2 stops18h 58m

$751

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 11/2

11:00 pm-9:30 am

1 stop26h 30m

Porto

Fri 11/6

6:00 am-10:35 pm

2 stops24h 35m

$752
Quickest round-trip

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 11/2

5:25 am-9:30 am

2 stops20h 05m

Porto

Thu 11/5

12:35 pm-9:05 pm

1 stop16h 30m

$759

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Fri 10/30

11:00 pm-9:30 am

1 stop27h 30m

Porto

Fri 11/6

12:35 pm-9:05 pm

1 stop16h 30m

$812

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Mon 11/2

11:00 pm-9:30 am

1 stop26h 30m

Porto

Sun 11/8

12:35 pm-9:05 pm

1 stop16h 30m

$1,026

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 7/2

10:54 pm-6:55 am

1 stop24h 01m

Porto

Fri 7/10

9:00 am-9:48 pm

1 stop20h 48m

$1,055
Cheapest one-way
Quickest one-way

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 11/3

5:25 am-9:30 am

2 stops20h 05m

$348

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Wed 6/3

8:20 pm-9:25 am

3 stops53h 05m

$451

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 5/21

8:20 pm-11:25 pm

3 stops43h 05m

$478

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/7

Showing 1-10 of 16 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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 May 10, 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
9,694 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

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
9,694 reviews
United Airlines
7.4
Good
9,694 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

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 20h 05m. United Airlines provides one of the quickest options available for as low as $751. There are 5483 mi between Sacramento and Porto.

  • 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 $757. This flight start at 17% 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 May 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$757Average$1,071FlexibilityNo cancel feeOn-time69%

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