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$257+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$473
(oojo)

One-way from

$257
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$953
From Fremont to Portugal
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One-way flight from Fremont 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 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 julio 31, 2025.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/14:40 pmSFO - FAO
2 stops33h 05mScandinavian Airlines
mié. 12/1010:35 amFAO - SFO
2 stops36h 00mScandinavian Airlines
Deal found 7/30$473
This United Airlines deal was found by Cheapflights users on 7/31. 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.
lun. 8/1811:59 pmSFO - PDL
2 stops25h 41mUnited Airlines
mié. 9/311:00 amPDL - SFO
1 stop19h 31mUnited Airlines
Deal found 7/31$545
This Mytrip deal was found by Cheapflights users on 7/31. 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.
lun. 9/228:40 amSFO - OPO
2 stops22h 25mMultiple Airlines
lun. 10/67:25 pmOPO - SFO
2 stops25h 15mMultiple Airlines
Deal found 7/31$545
This oojo deal was found by Cheapflights users on 7/31. 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.
sáb. 11/15:35 pmSFO - OPO
1 stop17h 30mTAP AIR PORTUGAL
vie. 11/149:00 amOPO - SFO
1 stop15h 05mTAP AIR PORTUGAL
Deal found 7/31$576
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/157:30 pmSFO - OPO
1 stop15h 00mSWISS
mar. 11/47:25 pmOPO - SFO
1 stop29h 05mSWISS
Deal found 7/29$581
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/110:59 pmSFO - OPO
2 stops27h 31mUnited Airlines
vie. 11/1412:30 pmOPO - SFO
1 stop15h 40mUnited Airlines
Deal found 7/29$590
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.
lun. 9/228:30 amSFO - FAO
2 stops23h 35mMultiple Airlines
mar. 10/74:30 pmFAO - SFO
2 stops28h 10mMultiple Airlines
Deal found 7/30$598
This Sembo deal was found by Cheapflights users on 7/29. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/224:20 pmSFO - FAO
1 stop23h 30mTAP AIR PORTUGAL
mar. 10/76:15 pmFAO - SFO
1 stop28h 20mTAP AIR PORTUGAL
Deal found 7/29$603
This Iberia deal was found by Cheapflights users on 7/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/196:10 amSFO - OPO
2 stops21h 30mIberia
mar. 11/48:40 pmOPO - SFO
2 stops32h 00mIberia
Deal found 7/29$608
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/53:30 pmSFO - OPO
2 stops41h 25mScandinavian Airlines
lun. 11/105:35 pmOPO - SFO
2 stops38h 18mScandinavian Airlines
Deal found 7/30$609
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/139:05 pmSFO - LIS
1 stop16h 45mLufthansa
mié. 9/36:45 amLIS - SFO
2 stops21h 12mLufthansa
Deal found 7/31$641
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/104:20 pmSFO - LIS
Nonstop11h 10mTAP AIR PORTUGAL
mié. 9/249:55 amLIS - SFO
Nonstop12h 40mTAP AIR PORTUGAL
Deal found 7/31$642

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 julio 31, 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 FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

lun. 12/1

4:40 pm-9:45 am

2 stops33h 05m

Faro

mié. 12/10

10:35 am-2:35 pm

2 stops36h 00m

$473

San FranciscoPonta Delgada

SFO - PDL

SFOPDL

San Francisco

lun. 8/18

11:59 pm-8:40 am

2 stops25h 41m

Ponta Delgada Nordela

mié. 9/3

11:00 am-11:31 pm

1 stop19h 31m

$545

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

lun. 9/22

8:40 am-3:05 pm

2 stops22h 25m

Porto

lun. 10/6

7:25 pm-12:40 pm

2 stops25h 15m

$545

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

lun. 10/6

4:20 pm-8:25 pm

1 stop20h 05m

Porto

mié. 10/15

7:00 am-2:35 pm

1 stop15h 35m

$577

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

mié. 10/15

7:30 pm-6:30 pm

1 stop15h 00m

Porto

mar. 11/4

7:25 pm-4:30 pm

1 stop29h 05m

$581

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

mié. 10/15

9:00 am-9:45 am

2 stops16h 45m

Porto

mié. 11/5

12:35 pm-12:12 am

2 stops19h 37m

$597

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

lun. 9/22

8:30 am-4:05 pm

2 stops23h 35m

Faro

mar. 10/7

4:30 pm-12:40 pm

2 stops28h 10m

$598

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

lun. 9/22

4:20 pm-11:50 pm

1 stop23h 30m

Faro

mar. 10/7

6:15 pm-2:35 pm

1 stop28h 20m

$603

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

dom. 10/19

6:10 am-11:40 am

2 stops21h 30m

Porto

mar. 11/4

8:40 pm-8:40 pm

2 stops32h 00m

$608

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

mié. 8/13

9:05 pm-9:50 pm

1 stop16h 45m

Lisbon Humberto Delgado

mié. 9/3

6:45 am-7:57 pm

2 stops21h 12m

$641

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 $1,129). 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 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 julio 31, 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 October 20, 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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 31, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Austrian Airlines from Fremont to Portugal 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

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

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
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

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
823 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

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
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

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
7.5
Good
67 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

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 83 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 $322 on American Airlines. Other airlines that offer cheap prices include British Airways from $323 and Finnair from $324 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 - Faro 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: JetBlue (82%), TAP AIR PORTUGAL (82%), Etihad Airways (57%).

  • What are the cheapest flights from Fremont to Portugal?

    Looking at all options, your cheapest flight can be booked for $254. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $503 on average our data indicates $2,018 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 $1,129). 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$347Average$1,025FlexibilityNo cancel feeOn-time77%
LEVELCheapest$351Average$723FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$490Average$729FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$496Average$821FlexibilityNo cancel feeOn-time72%
VuelingCheapest$532Average$848FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$550Average$1,174FlexibilityNo cancel feeOn-time76%
DeltaCheapest$553Average$904FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$559Average$914FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$561Average$828FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$570Average$967FlexibilityNo cancel feeOn-timeN/A

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