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Portugal

$426+ Cheap flights from Oakland, CA (OAK) to Portugal

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.
OAK — LIS
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Oakland to Portugal

Keep the following information in mind while searching for Oakland to Portugal flight deals. Data was last updated July 30, 2025.

Round-trip from

$595
(Delta)

One-way from

$428
(KLM)

Popular in

December

Cheapest in

January

Average price

$953
From Oakland to Portugal
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One-way flight from Oakland to Portugal
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($25 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 Oakland to Portugal

Cheapest flights from Oakland to Portugal
Explore the most affordable flight options available from Oakland to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 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.
Sun 10/2612:30 pmOAK - LIS
2 stops36h 30mDelta
Thu 11/611:15 amLIS - OAK
2 stops20h 38mDelta
Deal found 7/28$595
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 8/276:00 amOAK - FAO
3 stops28h 40mMultiple Airlines
Wed 9/36:05 amFAO - OAK
3 stops33h 33mMultiple Airlines
Deal found 7/28$898
This Delta deal was found by Cheapflights users on 7/27. 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 12/35:55 amOAK - OPO
2 stops32h 30mDelta
Sun 12/711:15 amOPO - OAK
2 stops37h 16mDelta
Deal found 7/27$915
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.
Sat 9/136:00 amOAK - OPO
3 stops33h 40mMultiple Airlines
Sat 9/207:00 amOPO - OAK
3 stops24h 32mMultiple Airlines
Deal found 7/30$1,104
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:55 amOAK - OPO
2 stops32h 30mKLM
Sun 12/284:10 pmOPO - OAK
2 stops32h 11mKLM
Deal found 7/30$1,243
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:00 amOAK - FAO
2 stops29h 30mKLM
Wed 9/38:50 amFAO - OAK
2 stops21h 56mKLM
Deal found 7/28$1,433
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:59 pmOAK - OPO
2 stops20h 16mBritish Airways
Mon 12/295:30 pmOPO - OAK
2 stops38h 29mBritish Airways
Deal found 7/30$1,865

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland to Portugal 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 30, 2025.
Use the filters below to find and compare flights from Oakland to Portugal that are best for you.

Fly from

Oakland

Fly to

Portugal

Route

Depart

Return

Price

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sun 10/26

12:30 pm-8:00 am

2 stops36h 30m

Lisbon Humberto Delgado

Wed 11/5

11:15 am-11:53 pm

2 stops20h 38m

$595

OaklandFaro

OAK - FAO

OAKFAO

Oakland

Wed 8/27

6:00 am-6:40 pm

3 stops28h 40m

Faro

Wed 9/3

6:05 am-7:38 am

3 stops33h 33m

$898

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

5:55 am-10:25 pm

2 stops32h 30m

Porto

Sun 12/7

11:15 am-4:31 pm

2 stops37h 16m

$915

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 9/13

6:00 am-11:40 pm

3 stops33h 40m

Porto

Sat 9/20

7:00 am-11:32 pm

3 stops24h 32m

$1,104

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 12/22

5:55 am-10:25 pm

2 stops32h 30m

Porto

Sun 12/28

4:10 pm-4:21 pm

2 stops32h 11m

$1,243

OaklandFaro

OAK - FAO

OAKFAO

Oakland

Wed 8/27

6:00 am-7:30 pm

2 stops29h 30m

Faro

Wed 9/3

8:50 am-10:46 pm

2 stops21h 56m

$1,433

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 12/20

2:59 pm-7:15 pm

2 stops20h 16m

Porto

Mon 12/29

5:30 pm-11:59 pm

2 stops38h 29m

$1,865

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 11/3

2:49 pm-6:55 pm

2 stops20h 06m

$426

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 8/10

6:00 am-3:30 pm

2 stops25h 30m

$428

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sun 11/2

5:55 am-8:00 am

2 stops18h 05m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 results
1
2

Best time to book a flight from Oakland to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Oakland, California to Portugal (average of $612). Flying from Oakland, California to Portugal in June is currently the most expensive (average of $1,129). 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 OAK to PT?

Find hourly flight availability from Oakland to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oakland, California to Portugal as you normally would.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Finnair from Oakland to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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.
Icelandair
7.0
Good
519 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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.
British Airways
6.6
Okay
7,217 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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 Oakland to Portugal. 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 from for flights from Oakland to Portugal?

    If you book a flight to Portugal from Oakland, you will be flying from Oakland, which is the city’s only airport. Oakland (OAK) is located 7.0 mi from the center of Oakland.

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

    The cheapest airline one-way is KLM, with whom users have recently found tickets for as low as $428. However, be on the lookout for offers from British Airways and Delta, as they are both options that can get you from Oakland, California to Portugal for a low price.

  • What are the most popular routes from Oakland, California to Portugal?

    The most popular flight routes from Oakland, California to Portugal are Oakland - Lisbon Humberto Delgado, Oakland - Porto and Oakland - Ponta Delgada Nordela.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Oakland, California to Portugal (average of $612). Flying from Oakland, California to Portugal in June is currently the most expensive (average of $1,129). 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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Top airline flying from Oakland to Portugal

Discover the top airline that operate flights from Oakland to Portugal. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$728Average$1,152FlexibilityNo cancel feeOn-timeN/A

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