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$302+ Cheap flights from Fremont, CA 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Fremont to Portugal

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

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$600
(oojo)

One-way from

$323
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$973
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 Fremont to Portugal
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One-way flight from Fremont to Portugal
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Highest demand for flights based on searches. 16% potential increase in price ($173 potential increase over avg. RT price).
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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 May 2025
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Find flight deals from Fremont to Portugal

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

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/295:35 pmSFO - FAO
1 stop23h 15mTAP AIR PORTUGAL
mié. 11/196:05 amFAO - SFO
1 stop16h 40mTAP AIR PORTUGAL
Deal found 4/29$599
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/148:30 amSFO - LIS
1 stop16h 50mAir Canada
mar. 10/2811:00 amLIS - SFO
1 stop17h 37mAir Canada
Deal found 4/29$652
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2211:50 amSFO - LIS
1 stop13h 30mMultiple Airlines
mié. 10/2912:15 pmLIS - SFO
1 stop36h 10mMultiple Airlines
Deal found 4/29$653
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/1610:24 amSFO - LIS
2 stops21h 01mFinnair
sáb. 11/224:10 pmLIS - SFO
2 stops34h 19mFinnair
Deal found 4/30$654
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/86:00 amSFO - LIS
2 stops19h 20mUnited Airlines
dom. 11/211:00 amLIS - SFO
2 stops38h 05mUnited Airlines
Deal found 4/30$655
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/127:40 pmSFO - LIS
2 stops42h 25mScandinavian Airlines
mié. 10/294:55 pmLIS - SFO
2 stops38h 03mScandinavian Airlines
Deal found 4/29$659
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/67:30 pmSFO - LIS
1 stop35h 15mSWISS
mié. 11/51:35 pmLIS - SFO
2 stops34h 50mSWISS
Deal found 4/30$660
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/81:00 pmSFO - LIS
1 stop13h 45mDelta
lun. 11/1011:25 amLIS - SFO
1 stop32h 25mDelta
Deal found 4/30$662
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/164:20 pmSFO - PDL
1 stop15h 20mTAP AIR PORTUGAL
jue. 10/307:25 pmPDL - SFO
1 stop26h 20mTAP AIR PORTUGAL
Deal found 4/30$667
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/64:20 pmSFO - LIS
Nonstop11h 15mTAP AIR PORTUGAL
lun. 10/139:55 amLIS - SFO
Nonstop12h 35mTAP AIR PORTUGAL
Deal found 4/30$667
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/275:35 pmSFO - FNC
1 stop24h 25mTAP AIR PORTUGAL
dom. 11/94:10 amFNC - SFO
1 stop18h 35mTAP AIR PORTUGAL
Deal found 4/29$671
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/226:00 amSFO - LIS
2 stops18h 00mVirgin Atlantic
mié. 10/2911:15 amLIS - SFO
2 stops19h 05mVirgin Atlantic
Deal found 4/29$671

Cheapflights Fare Finder

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

Fly from

Fremont

Fly to

Portugal

Route

Depart

Return

Price

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mar. 10/14

8:30 am-9:20 am

1 stop16h 50m

Lisbon Humberto Delgado

mar. 10/28

11:00 am-9:37 pm

1 stop17h 37m

$652

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mié. 10/22

8:30 am-9:20 am

1 stop16h 50m

Lisbon Humberto Delgado

mar. 10/28

12:35 pm-5:25 pm

1 stop35h 50m

$653

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mié. 10/8

6:00 am-9:20 am

2 stops19h 20m

Lisbon Humberto Delgado

dom. 11/2

11:00 am-5:05 pm

2 stops38h 05m

$655

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

lun. 10/6

7:30 pm-2:45 pm

1 stop35h 15m

Lisbon Humberto Delgado

mié. 11/5

1:35 pm-4:25 pm

2 stops34h 50m

$660

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mié. 8/6

7:40 pm-10:35 am

1 stop30h 55m

Lisbon Humberto Delgado

lun. 8/18

8:15 pm-4:30 pm

1 stop28h 15m

$661

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mié. 10/8

1:00 pm-10:45 am

1 stop13h 45m

Lisbon Humberto Delgado

lun. 11/10

11:25 am-11:50 am

1 stop32h 25m

$662

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

lun. 10/6

4:20 pm-11:35 am

Nonstop11h 15m

Lisbon Humberto Delgado

lun. 10/13

9:55 am-2:30 pm

Nonstop12h 35m

$667

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mié. 10/22

6:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

mié. 10/29

11:15 am-11:20 pm

2 stops19h 05m

$671

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

lun. 10/27

5:35 pm-1:00 am

1 stop24h 25m

Funchal Madeira

dom. 11/9

4:10 am-2:45 pm

1 stop18h 35m

$671

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

jue. 9/18

2:28 pm-8:05 pm

2 stops21h 37m

Lisbon Humberto Delgado

mar. 9/30

9:10 am-6:10 pm

1 stop17h 00m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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Best time to book a flight from Fremont to Portugal

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

What is the cheapest month to book a flight from Fremont to Portugal?

Currently, January is the cheapest month in which you can book a flight from Fremont to Portugal (average of $612). Flying from Fremont to Portugal in June is currently the most expensive (average of $1,178). 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 FR8 to PT?

Find hourly flight availability from Fremont 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 mayo 1, 2025.

When flying from Fremont to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Fremont to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Portugal. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Fremont to Portugal flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 mayo 1, 2025.
Get a feel of what it's like to fly with Delta, KLM and Air Transat from Fremont to Portugal by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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 Transat
7.8
Good
385 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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.
Azores Airlines
7.6
Good
66 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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.
Austrian Airlines
7.6
Good
781 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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

  • How popular is this Fremont to Portugal flight route?

    Flights from Fremont to Portugal have been viewed 89 times in the past calendar month.

  • What are the cheapest airlines to fly from Fremont to Portugal one-way?

    One-way options have recently been found by users for as low as $323 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Iberia from $387 and Scandinavian Airlines from $417 one-way.

  • What are the most popular routes from Fremont to Portugal?

    When deciding which route to take from Fremont to Portugal consider San Francisco - Lisbon Humberto Delgado, San Francisco - Porto or San Francisco - Lajes as they are the most popular.

  • What are the most reliable airlines from Fremont to Portugal?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Fremont to Portugal on time: TAP AIR PORTUGAL (83%), JetBlue (81%), Etihad Airways (67%).

  • What are the cheapest flights from Fremont to Portugal?

    Looking at all options, your cheapest flight can be booked for $264. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $461 on average our data indicates $1,861 when flying from Fremont to Portugal.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Fremont 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 Fremont to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Fremont to Portugal (average of $612). Flying from Fremont to Portugal in June is currently the most expensive (average of $1,178). 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 10 airlines flying from Fremont to Portugal

Discover the top 10 airlines that operate flights from Fremont 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$375Average$1,024FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$425Average$844FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$556Average$1,034FlexibilityNo cancel feeOn-time77%
KLMCheapest$560Average$985FlexibilityNo cancel feeOn-time75%
DeltaCheapest$568Average$925FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$569Average$1,030FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$571Average$1,267FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$581Average$839FlexibilityNo cancel feeOn-time70%
SWISSCheapest$586Average$914FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$596Average$738FlexibilityNo cancel feeOn-time77%

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