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Portugal

$294+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:55 pmSFO - FAO
2 stops55h 05mScandinavian Airlines
Sat 12/135:10 pmFAO - SFO
1 stop29h 25mScandinavian Airlines
Deal found 10/28$500
This Scandinavian Airlines deal was found by Cheapflights users on 10/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:40 pmSFO - FAO
2 stops33h 05mScandinavian Airlines
Wed 12/1010:35 amFAO - SFO
2 stops36h 00mScandinavian Airlines
Deal found 10/28$510
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:25 pmSFO - OPO
1 stop31h 50mSWISS
Tue 12/97:25 pmOPO - SFO
1 stop29h 05mSWISS
Deal found 10/28$512
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:25 pmSFO - OPO
1 stop31h 50mSWISS
Mon 12/157:20 pmOPO - SFO
1 stop29h 10mSWISS
Deal found 10/28$513
This KLM deal was found by Cheapflights users on 10/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:55 pmSFO - FNC
1 stop19h 15mKLM
Thu 12/410:20 amFNC - SFO
1 stop33h 30mKLM
Deal found 10/29$519
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 12/28:25 amSFO - OPO
2 stops19h 15mMultiple Airlines
Tue 12/97:25 pmOPO - SFO
1 stop29h 05mMultiple Airlines
Deal found 10/28$520
This KAYAK deal was found by Cheapflights users on 10/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/274:40 pmSFO - FAO
2 stops41h 25mScandinavian Airlines
Wed 12/1010:35 amFAO - SFO
2 stops36h 00mScandinavian Airlines
Deal found 10/28$522
This Ticket deal was found by Cheapflights users on 10/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/281:55 pmSFO - FNC
1 stop19h 55mKLM
Fri 12/126:00 pmFNC - SFO
1 stop25h 50mKLM
Deal found 10/28$526
This KLM deal was found by Cheapflights users on 10/28. 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.
Mon 12/11:55 pmSFO - FAO
1 stop21h 00mKLM
Wed 12/106:55 pmFAO - SFO
1 stop24h 55mKLM
Deal found 10/28$530
This Air France deal was found by Cheapflights users on 10/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:15 amSFO - OPO
2 stops18h 15mMultiple Airlines
Fri 12/126:30 amOPO - SFO
1 stop37h 20mMultiple Airlines
Deal found 10/28$531
This KLM deal was found by Cheapflights users on 10/28. 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.
Tue 11/257:05 amSFO - FAO
2 stops18h 25mKLM
Mon 12/87:15 pmFAO - SFO
1 stop24h 35mKLM
Deal found 10/28$535
This Air France deal was found by Cheapflights users on 10/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:40 pmSFO - OPO
1 stop34h 50mMultiple Airlines
Mon 12/156:30 amOPO - SFO
2 stops19h 34mMultiple Airlines
Deal found 10/28$538

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 October 30, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$470
(oojo)

One-way from

$294
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$746
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
Search Deals
From Fremont to Portugal
Search Deals
One-way flight from Fremont to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 30, 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

Sat 12/6

6:55 pm-10:00 am

2 stops55h 05m

Faro

Sat 12/13

5:10 pm-2:35 pm

1 stop29h 25m

$500

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

Mon 12/1

4:40 pm-9:45 am

2 stops33h 05m

Faro

Wed 12/10

10:35 am-2:35 pm

2 stops36h 00m

$510

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Sat 12/6

7:25 pm-6:35 pm

1 stop15h 10m

Porto

Fri 12/12

7:20 pm-4:30 pm

1 stop29h 10m

$513

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Mon 12/1

7:25 pm-11:15 am

1 stop31h 50m

Porto

Mon 12/15

7:20 pm-4:30 pm

1 stop29h 10m

$513

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Thu 11/27

1:55 pm-5:10 pm

1 stop19h 15m

Funchal Madeira

Thu 12/4

10:20 am-11:50 am

1 stop33h 30m

$519

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Sat 2/14

7:25 pm-6:35 pm

1 stop15h 10m

Porto

Sun 2/22

7:25 pm-4:30 pm

1 stop29h 05m

$529

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

Tue 2/10

11:56 pm-11:40 am

2 stops27h 44m

Faro

Tue 2/24

7:00 pm-4:30 pm

1 stop29h 30m

$530

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

Mon 12/1

1:55 pm-6:55 pm

1 stop21h 00m

Faro

Wed 12/10

6:55 pm-11:50 am

1 stop24h 55m

$530

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

Tue 11/25

7:05 am-9:30 am

2 stops18h 25m

Faro

Mon 12/8

7:15 pm-11:50 am

1 stop24h 35m

$535

San FranciscoFaro

SFO - FAO

SFOFAO

San Francisco

Tue 11/25

11:50 am-6:05 pm

2 stops22h 15m

Faro

Sun 12/7

6:50 pm-11:50 am

1 stop25h 00m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 57 results
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6

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, November is the cheapest month in which you can book a flight from Fremont to Portugal (average of $507). Flying from Fremont to Portugal in June is currently the most expensive (average of $782). 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 October 30, 2025.

It’s optimal to fly from Fremont to Portugal in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the morning.

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 afternoons when fares are most often at their lowest. Thursday at noon 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 October 30, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and Air Canada 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
7.9
Good
7,993 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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 Canada
7.1
Good
10,378 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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.
TAP AIR PORTUGAL
7.1
Good
2,037 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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
6.7
Okay
7,487 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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 36 times in the past calendar month.

  • How long is the flight from Fremont to Portugal?

    Airlines like Scandinavian Airlines, SWISS, and KLM fly from Fremont to Portugal in about 15h 10m. The time it takes to get you to your destination can typically vary by up to 39h 55m. There are 5566 mi between Fremont and Portugal. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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: Etihad Airways (92%), JetBlue (84%), TAP AIR PORTUGAL (84%).

  • What are the cheapest flights from Fremont to Portugal?

    Looking at all options, your cheapest flight can be booked for $197. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $442 on average, our data indicates $1,598 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, November is the cheapest month in which you can book a flight from Fremont to Portugal (average of $507). Flying from Fremont to Portugal in June is currently the most expensive (average of $782). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$351Average$742FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$409Average$695FlexibilityNo cancel feeOn-time77%
IberiaCheapest$469Average$1,003FlexibilityNo cancel feeOn-time77%
KLMCheapest$497Average$774FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$531Average$813FlexibilityNo cancel feeOn-time70%
VuelingCheapest$532Average$869FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$550Average$1,127FlexibilityNo cancel feeOn-time76%
SWISSCheapest$553Average$885FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$555Average$763FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$555Average$821FlexibilityNo cancel feeOn-time72%

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