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$333+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — LIS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(Delta)

One-way from

$333
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$693
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
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From Oakland to Portugal
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One-way flight from Oakland to Portugal
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Highest demand for flights based on searches. 22% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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 4/276:00 amOAK - LIS
2 stops44h 45mDelta
Tue 5/612:45 pmLIS - OAK
2 stops18h 58mDelta
Deal found 2/19$728
This Delta deal was found by Cheapflights users on 2/19. 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.
Mon 4/286:00 amOAK - OPO
2 stops25h 35mDelta
Wed 5/79:15 pmOPO - OAK
2 stops27h 16mDelta
Deal found 2/19$828
This KLM deal was found by Cheapflights users on 2/20. 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 5/175:55 amOAK - LIS
2 stops28h 45mKLM
Fri 5/305:00 amLIS - OAK
2 stops26h 45mKLM
Deal found 2/20$890
This Air France deal was found by Cheapflights users on 2/19. 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.
Mon 7/145:55 amOAK - LIS
2 stops27h 55mAir France
Mon 7/286:50 pmLIS - OAK
2 stops29h 40mAir France
Deal found 2/19$949
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Mon 3/311:06 pmOAK - LIS
3 stops32h 24mMultiple Airlines
Sun 4/64:00 pmLIS - OAK
3 stops33h 55mMultiple Airlines
Deal found 2/20$967
This FlightHub deal was found by Cheapflights users on 2/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/712:45 pmOAK - LIS
2 stops24h 35mIcelandair
Thu 5/1510:20 pmLIS - OAK
2 stops31h 51mIcelandair
Deal found 2/19$1,108
This British Airways deal was found by Cheapflights users on 2/20. 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.
Thu 9/182:35 pmOAK - LIS
2 stops19h 35mBritish Airways
Sat 9/277:10 amLIS - OAK
2 stops24h 28mBritish Airways
Deal found 2/20$1,128
This Mytrip deal was found by Cheapflights users on 2/18. 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 4/56:55 pmOAK - OPO
3 stops32h 00mMultiple Airlines
Sat 4/1210:50 amOPO - OAK
3 stops38h 54mMultiple Airlines
Deal found 2/18$1,165
This KLM deal was found by Cheapflights users on 2/20. 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.
Thu 3/2012:55 pmOAK - OPO
2 stops26h 25mKLM
Sat 3/294:10 pmOPO - OAK
2 stops38h 49mKLM
Deal found 2/20$1,529
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Fri 6/63:05 pmOAK - TER
3 stops35h 00mMultiple Airlines
Sun 6/157:10 amTER - OAK
3 stops33h 01mMultiple Airlines
Deal found 2/18$1,659
This Expedia deal was found by Cheapflights users on 2/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/267:00 amOAK - PDL
2 stops45h 05mMultiple Airlines
Wed 6/412:10 pmPDL - OAK
2 stops41h 01mMultiple Airlines
Deal found 2/19$1,944

Find flights from Oakland to Portugal within your budget

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 February 20, 2025.

Fly from

Oakland

Fly to

Portugal

Route

Depart

Return

Price

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sun 4/27

6:00 am-10:45 am

2 stops44h 45m

Lisbon Humberto Delgado

Tue 5/6

12:45 pm-11:43 pm

2 stops18h 58m

$728

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 4/28

6:00 am-3:35 pm

2 stops25h 35m

Porto

Wed 5/7

9:15 pm-4:31 pm

2 stops27h 16m

$828

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sat 5/17

5:55 am-6:40 pm

2 stops28h 45m

Lisbon Humberto Delgado

Fri 5/30

5:00 am-11:45 pm

2 stops26h 45m

$890

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 7/14

5:55 am-5:50 pm

2 stops27h 55m

Lisbon Humberto Delgado

Mon 7/28

6:50 pm-4:30 pm

2 stops29h 40m

$949

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 3/31

1:06 pm-5:30 am

3 stops32h 24m

Lisbon Humberto Delgado

Sun 4/6

4:00 pm-5:55 pm

3 stops33h 55m

$967

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/6

6:00 am-3:30 pm

2 stops25h 30m

Porto

Sun 4/13

6:20 pm-4:23 pm

2 stops30h 03m

$1,099

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Wed 5/7

12:45 pm-9:20 pm

2 stops24h 35m

Lisbon Humberto Delgado

Thu 5/15

10:20 pm-10:11 pm

2 stops31h 51m

$1,108

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sat 3/22

9:23 am-2:50 pm

2 stops22h 27m

Lisbon Humberto Delgado

Fri 3/28

7:05 am-11:43 pm

2 stops23h 38m

$1,304

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 3/20

12:55 pm-10:20 pm

2 stops26h 25m

Porto

Sat 3/29

4:10 pm-11:59 pm

2 stops38h 49m

$1,529

OaklandLajes

OAK - TER

OAKTER

Oakland

Fri 6/6

3:05 pm-9:05 am

3 stops35h 00m

Lajes

Sun 6/15

7:10 am-9:11 am

3 stops33h 01m

$1,659

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 19 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.

Travel insights for flights from Oakland to Portugal

Get recent, data-driven insights about flights from Oakland to Portugal including ideal travel times, pricing trends, and more.

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 $1,234). 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 February 20, 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.

Rainfall in Portugal by month

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

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

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

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 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 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 February 20, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Oakland to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

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
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

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
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

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
1,274 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

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.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

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
7.1
Good
491 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

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 Delta, with whom users have recently found tickets for as low as $449. However, be on the lookout for offers from Air France and KLM, 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 - Ponta Delgada Nordela and Oakland - Porto.

  • 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 $1,234). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$727Average$1,014FlexibilityNo cancel feeOn-timeN/A
Azores AirlinesCheapest$1,269Average$1,508FlexibilityNo cancel feeOn-time74%
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