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$593+ Cheap flights from Porto (OPO) to Oakland, CA (OAK)

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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — OAK
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Porto to Oakland

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Oakland (OAK). 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 July 29, 2025.

Round-trip from

$983
(Delta)

One-way from

$593
(Mytrip)

Popular in

October

Cheapest in

February

Average price

$869
From Porto to Oakland
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One-way flight from Porto to Oakland
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Highest demand for flights based on searches. 14% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($63 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Porto to Oakland

Cheapest flights from Porto to Oakland
Explore the most affordable flight options available from Porto to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 8/136:15 amOPO - OAK
2 stops25h 35mDelta
Sun 8/174:58 pmOAK - OPO
2 stops16h 52mDelta
Deal found 7/28$983
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:15 amOPO - OAK
3 stops24h 35mMultiple Airlines
Sun 8/174:58 pmOAK - OPO
3 stops21h 37mMultiple Airlines
Deal found 7/28$1,290

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Oakland 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 July 29, 2025.
Use the filters below to find and compare flights from Porto to Oakland that are best for you.

Fly from

Porto

Fly to

Oakland

Route

Depart

Return

Price

PortoOakland

OPO - OAK

OPOOAK

Porto

Wed 8/13

6:15 am-11:50 pm

2 stops25h 35m

Oakland

Sun 8/17

4:58 pm-5:50 pm

2 stops16h 52m

$983

PortoOakland

OPO - OAK

OPOOAK

Porto

Wed 8/13

7:15 am-11:50 pm

3 stops24h 35m

Oakland

Sun 8/17

4:58 pm-10:35 pm

3 stops21h 37m

$1,290

PortoOakland

OPO - OAK

OPOOAK

Porto

Sat 11/22

6:30 am-11:10 am

3 stops36h 40m

$593

PortoOakland

OPO - OAK

OPOOAK

Porto

Sat 11/22

4:10 pm-4:31 pm

2 stops32h 21m

$706

PortoOakland

OPO - OAK

OPOOAK

Porto

Thu 8/14

11:25 am-4:16 pm

2 stops36h 51m

$1,285

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Porto to Oakland

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

What is the cheapest month to book a flight from Porto to Oakland, California?

Currently, April is the cheapest month in which you can book a flight from Porto to Oakland, California (average of $183). Flying from Porto to Oakland, California in November is currently the most expensive (average of $259). 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.

Reviews of airlines servicing Oakland

Get insights into the airlines that provide service to Oakland. 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 Oakland. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Delta and KLM from Porto to Oakland. 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
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Porto to Oakland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto to Oakland 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 Porto to Oakland, California?

    Currently, April is the cheapest month in which you can book a flight from Porto to Oakland, California (average of $183). Flying from Porto to Oakland, California in November is currently the most expensive (average of $259). 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.

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