HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oakland

$732+ Cheap flights from Portugal 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — OAK
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portugal to Oakland 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 Portugal to Oakland

Keep the following information in mind while searching for Portugal to Oakland flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$784
(Delta)

One-way from

$732
(oojo)

Popular in

July

Cheapest in

February

Average price

$777
Provider with most accurate pricing for Lisbon Humberto Delgado-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-San Francisco flights.
Search Deals
From Portugal to Oakland
Search Deals
One-way flight from Portugal to Oakland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Portugal to Oakland

Cheapest flights from Portugal to Oakland
Explore the most affordable flight options available from Portugal to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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 10/145:40 amLIS - OAK
2 stops26h 13mDelta
Fri 10/245:55 amOAK - LIS
2 stops24h 55mDelta
Deal found 4/29$784
This KLM deal was found by Cheapflights users on 4/30. 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.
Sat 6/145:00 amLIS - OAK
2 stops26h 08mKLM
Sat 6/2112:30 pmOAK - LIS
2 stops26h 20mKLM
Deal found 4/30$796
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1411:00 amLIS - OAK
2 stops20h 38mMultiple Airlines
Fri 10/246:30 amOAK - LIS
3 stops18h 35mMultiple Airlines
Deal found 4/29$964

Cheapflights Fare Finder

Customize your flight search to find flights from Portugal 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 May 1, 2025.
Use the filters below to find and compare flights from Portugal to Oakland that are best for you.

Fly from

Portugal

Fly to

Oakland

Route

Depart

Return

Price

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Tue 10/14

5:40 am-11:53 pm

2 stops26h 13m

Oakland

Fri 10/24

5:55 am-2:50 pm

2 stops24h 55m

$784

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Sat 6/14

5:00 am-11:08 pm

2 stops26h 08m

Oakland

Sat 6/21

12:30 pm-10:50 pm

2 stops26h 20m

$796

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Tue 10/14

11:00 am-11:38 pm

2 stops20h 38m

Oakland

Fri 10/24

6:30 am-9:05 am

3 stops18h 35m

$964

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Sun 5/18

10:25 pm-10:11 pm

2 stops55h 46m

$732

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Fri 6/27

5:00 am-4:16 pm

2 stops19h 16m

$746

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Thu 5/8

5:05 am-11:44 pm

2 stops26h 39m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Best time to book a flight from Portugal to Oakland

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

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

Currently, April is the cheapest month in which you can book a flight from Portugal to Oakland, California (average of $183). Flying from Portugal 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.

Rainfall in Oakland by month

Plan your trip to Oakland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oakland, California ranges from 0.0 - 4.8 inches per month. January is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Oakland, California when rainfall is around 0.0 in.

Temperature in Oakland by month

Plan your trip to Oakland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oakland, California, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
Icelandair
7.0
Good
487 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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 Portugal to Oakland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Oakland from Portugal?

    Oakland (OAK) is the airport you will fly into if you book a flight from Portugal to Oakland. It is only a 7.0 mi journey from Oakland (OAK) to Oakland’s city center.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Portugal to Oakland, California (average of $183). Flying from Portugal 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.

See more FAQs

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 Portugal to Oakland

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Los Angeles flights
Heathrow to Los Angeles flights
Charles de Gaulle to San Francisco flights
Heathrow to San Francisco flights
Charles de Gaulle to Burbank flights
Madrid to Los Angeles flights
Frankfurt to Las Vegas flights
Malpensa to Los Angeles flights
Orly to Los Angeles flights
Heathrow to Las Vegas flights
Frankfurt to San Francisco flights
Frankfurt to Los Angeles flights
Linate to Los Angeles flights
Munich to San Francisco flights
Zurich to Los Angeles flights
Charles de Gaulle to Long Beach flights
London City to Los Angeles flights
Vienna to Los Angeles flights
Frederic Chopin to Los Angeles flights
Amsterdam to Los Angeles flights
Orly to San Francisco flights
Munich to Los Angeles flights
Malpensa to Santa Ana flights
Charles de Gaulle to Las Vegas flights
Gatwick to San Francisco flights
Zurich to San Francisco flights
London City to San Francisco flights
Gatwick to Los Angeles flights
Barcelona-El Prat to Los Angeles flights
Leonardo da Vinci/Fiumicino to San Francisco flights
Charles de Gaulle to Santa Ana flights
Barcelona-El Prat to San Francisco flights
Amsterdam to San Francisco flights
Luton to Los Angeles flights
Gatwick to Las Vegas flights
Charles de Gaulle to Oakland flights
Beauvais-Tille to Los Angeles flights
Heathrow to Ontario flights
Dublin to Los Angeles flights
Amsterdam to Las Vegas flights
Frankfurt to Ontario flights
Frankfurt to San Jose flights
Berlin to Los Angeles flights
Frankfurt to Santa Ana flights
Orly to Las Vegas flights
Leonardo da Vinci/Fiumicino to Los Angeles flights

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.