HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$466+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — OPO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sacramento to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 3/107:31 amSMF - OPO
2 stops18h 59mUnited Airlines
Tue 3/1712:30 pmOPO - SMF
2 stops28h 49mUnited Airlines
Deal found 12/17$478
This Delta deal was found by Cheapflights users on 12/17. 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 1/315:30 amSMF - OPO
2 stops25h 55mDelta
Sat 2/75:00 amOPO - SMF
2 stops23h 58mDelta
Deal found 12/17$499
This United Airlines deal was found by Cheapflights users on 12/16. 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 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 12/16$506
This United Airlines deal was found by Cheapflights users on 12/14. 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 1/298:30 amSMF - OPO
2 stops22h 15mUnited Airlines
Mon 2/26:00 amOPO - SMF
2 stops39h 50mUnited Airlines
Deal found 12/14$506
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 1/3110:50 amSMF - OPO
2 stops40h 50mUnited Airlines
Sat 2/712:30 pmOPO - SMF
2 stops53h 54mUnited Airlines
Deal found 12/17$532
This United Airlines deal was found by Cheapflights users on 12/15. 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 1/297:00 amSMF - OPO
3 stops23h 45mUnited Airlines
Thu 2/56:00 amOPO - SMF
2 stops23h 54mUnited Airlines
Deal found 12/15$606
This United Airlines deal was found by Cheapflights users on 12/15. 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 3/55:00 amSMF - OPO
2 stops20h 30mUnited Airlines
Tue 3/316:00 amOPO - SMF
2 stops22h 46mUnited Airlines
Deal found 12/15$641

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 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$478
(United Airlines)

One-way from

$466
(Trip.com)

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 18, 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 3/10

7:31 am-9:30 am

2 stops18h 59m

Porto

Tue 3/17

12:30 pm-10:19 am

2 stops28h 49m

$478

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 1/31

5:30 am-3:25 pm

2 stops25h 55m

Porto

Sat 2/7

5:00 am-8:58 pm

2 stops23h 58m

$499

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

$506

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 1/29

8:30 am-2:45 pm

2 stops22h 15m

Porto

Mon 2/2

6:00 am-1:50 pm

2 stops39h 50m

$506

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sat 1/31

10:50 am-11:40 am

2 stops40h 50m

Porto

Sat 2/7

12:30 pm-10:24 am

2 stops53h 54m

$532

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 1/29

7:00 am-2:45 pm

3 stops23h 45m

Porto

Thu 2/5

6:00 am-9:54 pm

2 stops23h 54m

$606

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 3/5

5:00 am-9:30 am

2 stops20h 30m

Porto

Tue 3/31

6:00 am-8:46 pm

2 stops22h 46m

$641

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Thu 5/7

12:06 pm-7:05 pm

2 stops22h 59m

$466

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Fri 3/27

9:08 am-9:00 am

3 stops40h 52m

$541

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Sun 4/19

3:53 pm-10:20 am

2 stops34h 27m

$1,249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 11 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 $543). 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 18, 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.

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 18, 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
8,008 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

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
8,008 reviews
Delta
7.9
Good
8,008 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

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
9,095 reviews
Delta
7.9
Good
8,008 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

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
10,534 reviews
Delta
7.9
Good
8,008 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

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 18h 59m. United Airlines provides one of the quickest options available for as low as $478. 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 $543). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sacramento to Porto

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Lisbon flights
Los Angeles to Lisbon flights
Ontario to Lisbon flights
Santa Ana to Lisbon flights
San Jose to Lisbon flights
San Diego to Lisbon flights
Los Angeles to Porto flights
San Francisco to Porto flights
San Francisco to Lajes flights
Ontario to Porto flights
Las Vegas to Lisbon flights
Oakland to Lisbon flights
Santa Ana to Porto flights
San Francisco to Funchal flights
San Francisco to Ponta Delgada flights
San Francisco to Faro flights
San Diego to Porto flights
Los Angeles to Funchal flights
Sacramento to Lisbon flights
San Jose to Porto flights
Los Angeles to Faro flights
Reno to Lisbon flights
Palm Springs to Lisbon flights
Los Angeles to Ponta Delgada flights
San Diego to Faro flights
Las Vegas to Faro flights
Los Angeles to Lajes flights
Fresno to Lisbon flights
San Jose to Faro flights
Burbank to Lisbon flights
Long Beach to Lisbon flights
Oakland to Ponta Delgada flights
Santa Rosa to Lisbon flights
Burbank to Porto flights
Santa Ana to Faro flights
San Jose to Lajes flights
Los Angeles to Pico Island flights
Monterey to Lisbon flights
Ontario to Faro flights
San Diego to Ponta Delgada flights
Las Vegas to Funchal flights
San Jose to Funchal flights
San Francisco to Porto Santo flights
San Francisco to Velas flights
Sacramento to Lajes flights
Los Angeles to Horta flights
San Francisco to Pico Island flights

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 18, 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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.