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$680+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — OAK
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$930
(Mytrip)

One-way from

$680
(Delta)

Popular in

August

Cheapest in

February

Average price

$895
From Portugal to Oakland
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One-way flight from Portugal to Oakland
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Highest demand for flights based on searches. 6% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 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 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 July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:35 amLIS - OAK
3 stops31h 26mMultiple Airlines
Tue 9/238:33 amOAK - LIS
3 stops27h 57mMultiple Airlines
Deal found 7/30$930
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:15 amOPO - OAK
3 stops33h 23mMultiple Airlines
Tue 9/238:33 amOAK - OPO
3 stops39h 12mMultiple Airlines
Deal found 7/30$1,109
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:00 amLIS - OAK
2 stops19h 16mDelta
Tue 8/196:00 amOAK - LIS
2 stops18h 00mDelta
Deal found 7/30$1,122

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 July 31, 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

Sun 9/14

10:35 am-10:01 am

3 stops31h 26m

Oakland

Tue 9/23

8:33 am-8:30 pm

3 stops27h 57m

$930

PortoOakland

OPO - OAK

OPOOAK

Porto

Sun 9/14

6:15 am-7:38 am

3 stops33h 23m

Oakland

Tue 9/23

8:33 am-7:45 am

3 stops39h 12m

$1,109

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Fri 8/15

5:00 am-4:16 pm

2 stops19h 16m

Oakland

Tue 8/19

6:00 am-8:00 am

2 stops18h 00m

$1,122

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Wed 10/15

5:00 am-4:11 pm

2 stops19h 11m

$680

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Fri 11/21

7:05 am-11:59 pm

2 stops24h 54m

$784

PortoOakland

OPO - OAK

OPOOAK

Porto

Wed 9/3

11:35 am-10:46 pm

2 stops19h 11m

$784

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Sun 9/21

10:25 pm-10:03 pm

2 stops31h 38m

$1,079

LisbonOakland

LIS - OAK

LISOAK

Lisbon Humberto Delgado

Wed 8/27

6:45 am-10:03 pm

2 stops23h 18m

$2,391

PortoOakland

OPO - OAK

OPOOAK

Porto

Thu 8/14

8:15 am-12:01 am

3 stops23h 46m

$3,053

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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.

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 31, 2025.
Get a feel of what it's like to fly with Delta, Icelandair, and British Airways from Portugal to Oakland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
520 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
British Airways
6.6
Okay
7,222 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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.

  • What are the cheapest airlines to fly from Portugal to Oakland, California one-way?

    One-way options have recently been found by users for as low as $680 on Delta. Other airlines that offer cheap prices include British Airways from $784 and Icelandair from $1,079 one-way.

  • 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

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