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Portugal

$427+ 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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — LIS
jul. 12 — jul. 191
sáb. 7/12
sáb. 7/19
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 julio 7, 2025.

Round-trip from

$717
(Air France)

One-way from

$427
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$941
From Oakland to Portugal
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One-way flight from Oakland to Portugal
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($28 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 julio 7, 2025.

This Delta deal was found by Cheapflights users on 7/6. 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.
lun. 11/245:55 amOAK - LIS
2 stops43h 05mDelta
mar. 12/911:15 amLIS - OAK
2 stops20h 38mDelta
Deal found 7/6$595
This American Airlines deal was found by Cheapflights users on 7/6. 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.
mar. 10/286:30 amOAK - LIS
2 stops22h 35mMultiple Airlines
sáb. 11/87:00 amLIS - OAK
2 stops24h 57mMultiple Airlines
Deal found 7/6$673
This KLM deal was found by Cheapflights users on 7/6. 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.
mié. 12/35:55 amOAK - OPO
2 stops20h 55mKLM
dom. 12/711:45 amOPO - OAK
2 stops36h 46mKLM
Deal found 7/6$742
This KLM deal was found by Cheapflights users on 7/6. 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.
mié. 8/2012:35 pmOAK - LIS
2 stops26h 15mKLM
mié. 8/2711:40 amLIS - OAK
2 stops19h 06mKLM
Deal found 7/6$748
This Delta deal was found by Cheapflights users on 7/6. 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.
dom. 8/176:00 amOAK - OPO
2 stops31h 35mDelta
mié. 9/34:20 pmOPO - OAK
2 stops38h 26mDelta
Deal found 7/6$800
This Mytrip deal was found by Cheapflights users on 7/6. 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.
mié. 9/36:00 amOAK - FAO
3 stops32h 35mMultiple Airlines
vie. 9/196:05 amFAO - OAK
3 stops25h 27mMultiple Airlines
Deal found 7/6$832
This British Airways deal was found by Cheapflights users on 7/6. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/122:47 pmOAK - LIS
2 stops23h 03mBritish Airways
mié. 11/1910:40 amLIS - OAK
2 stops21h 17mBritish Airways
Deal found 7/6$838
This Air France deal was found by Cheapflights users on 7/7. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/286:00 amOAK - OPO
2 stops28h 15mMultiple Airlines
mar. 9/26:50 pmOPO - OAK
2 stops35h 56mMultiple Airlines
Deal found 7/7$926
This Mytrip deal was found by Cheapflights users on 7/6. 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.
mar. 7/85:30 amOAK - TER
3 stops34h 45mMultiple Airlines
mar. 7/157:05 amTER - OAK
3 stops23h 28mMultiple Airlines
Deal found 7/6$2,525
This Arangrant deal was found by Cheapflights users on 7/7. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/259:39 amOAK - OPO
2 stops26h 11mBritish Airways
mié. 9/38:20 pmOPO - OAK
2 stops33h 43mBritish Airways
Deal found 7/7$4,948
This American Airlines deal was found by Cheapflights users on 7/7. 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.
jue. 7/107:58 pmOAK - FNC
3 stops31h 37mMultiple Airlines
sáb. 7/1912:15 pmFNC - OAK
3 stops38h 18mMultiple Airlines
Deal found 7/7$6,230

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 julio 7, 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

lun. 11/24

5:55 am-9:00 am

2 stops43h 05m

Lisbon Humberto Delgado

mié. 12/3

11:15 am-11:53 pm

2 stops20h 38m

$595

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

mar. 10/28

6:30 am-12:05 pm

2 stops22h 35m

Lisbon Humberto Delgado

sáb. 11/8

7:00 am-11:57 pm

2 stops24h 57m

$673

OaklandPorto

OAK - OPO

OAKOPO

Oakland

mié. 12/3

5:55 am-10:50 am

2 stops20h 55m

Porto

dom. 12/7

11:45 am-4:31 pm

2 stops36h 46m

$742

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

mié. 8/20

12:35 pm-10:50 pm

2 stops26h 15m

Lisbon Humberto Delgado

mié. 8/27

11:40 am-10:46 pm

2 stops19h 06m

$748

OaklandPorto

OAK - OPO

OAKOPO

Oakland

dom. 8/17

6:00 am-9:35 pm

2 stops31h 35m

Porto

mié. 9/3

4:20 pm-10:46 pm

2 stops38h 26m

$800

OaklandFaro

OAK - FAO

OAKFAO

Oakland

mié. 9/3

6:00 am-10:35 pm

3 stops32h 35m

Faro

vie. 9/19

6:05 am-11:32 pm

3 stops25h 27m

$832

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

mié. 11/12

2:47 pm-9:50 pm

2 stops23h 03m

Lisbon Humberto Delgado

mié. 11/19

10:40 am-11:57 pm

2 stops21h 17m

$838

OaklandPorto

OAK - OPO

OAKOPO

Oakland

jue. 8/28

6:00 am-6:15 pm

2 stops28h 15m

Porto

mar. 9/2

6:50 pm-10:46 pm

2 stops35h 56m

$926

OaklandPorto

OAK - OPO

OAKOPO

Oakland

lun. 8/25

9:39 am-7:50 pm

2 stops26h 11m

Porto

mié. 9/3

8:20 pm-10:03 pm

2 stops33h 43m

$4,948

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

sáb. 8/9

2:38 pm-9:20 pm

2 stops22h 42m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 13 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 $1,130). 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 julio 7, 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 julio 7, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Icelandair 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
7,963 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
1,368 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
514 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
7,095 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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 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 - Funchal Madeira.

  • 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 $1,130). 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 2 airlines flying from Oakland to Portugal

Discover the top 2 airlines 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 julio 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$728Average$1,301FlexibilityNo cancel feeOn-timeN/A
Azores AirlinesCheapest$1,281Average$1,379FlexibilityNo cancel feeOn-time74%

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