Portugal

$231+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Feb 28 — Mar 71
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Cheap 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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/26. 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.
Fri 3/67:10 pm
SFO
-
OPO
1 stop15h 50m
TAP AIR PORTUGAL
Sat 3/146:55 am
OPO
-
SFO
1 stop15h 50m
TAP AIR PORTUGAL
Deal found 1/26$431
This lol.travel deal was found by Cheapflights users on 1/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/24:35 pm
SFO
-
FAO
1 stop23h 15m
TAP AIR PORTUGAL
Tue 2/174:35 pm
FAO
-
SFO
1 stop29h 55m
TAP AIR PORTUGAL
Deal found 1/29$431
This oojo deal was found by Cheapflights users on 1/27. 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.
Fri 3/138:10 pm
SFO
-
OPO
1 stop18h 50m
TAP AIR PORTUGAL
Tue 3/248:00 pm
OPO
-
SFO
1 stop26h 30m
TAP AIR PORTUGAL
Deal found 1/27$432
This oojo deal was found by Cheapflights users on 1/27. 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.
Fri 3/138:10 pm
SFO
-
FAO
1 stop20h 40m
TAP AIR PORTUGAL
Fri 3/206:05 am
FAO
-
SFO
1 stop18h 00m
TAP AIR PORTUGAL
Deal found 1/27$432
This oojo deal was found by Cheapflights users on 1/27. 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.
Thu 4/237:55 pm
SFO
-
FAO
1 stop19h 55m
TAP AIR PORTUGAL
Tue 5/56:05 am
FAO
-
SFO
1 stop16h 30m
TAP AIR PORTUGAL
Deal found 1/27$433
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Mon 2/234:35 pm
SFO
-
OPO
1 stop14h 25m
TAP AIR PORTUGAL
Sun 3/12:50 pm
OPO
-
SFO
1 stop31h 45m
TAP AIR PORTUGAL
Deal found 1/28$449
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/164:35 pm
SFO
-
OPO
1 stop17h 40m
TAP AIR PORTUGAL
Tue 2/2410:15 pm
OPO
-
SFO
1 stop24h 15m
TAP AIR PORTUGAL
Deal found 1/29$450
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Mon 2/164:35 pm
SFO
-
OPO
1 stop14h 25m
TAP AIR PORTUGAL
Sun 2/228:00 pm
OPO
-
SFO
1 stop26h 35m
TAP AIR PORTUGAL
Deal found 1/27$451
This FlightHub deal was found by Cheapflights users on 1/27. 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 3/74:35 pm
SFO
-
OPO
1 stop34h 00m
TAP AIR PORTUGAL
Sun 3/158:00 pm
OPO
-
SFO
1 stop26h 35m
TAP AIR PORTUGAL
Deal found 1/27$455
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 4/144:35 pm
SFO
-
OPO
1 stop15h 40m
TAP AIR PORTUGAL
Thu 4/239:00 am
OPO
-
SFO
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 1/27$459
This oojo deal was found by Cheapflights users on 1/29. 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.
Thu 4/307:55 pm
SFO
-
FNC
1 stop20h 15m
TAP AIR PORTUGAL
Wed 5/137:20 pm
FNC
-
SFO
1 stop29h 15m
TAP AIR PORTUGAL
Deal found 1/29$473
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:55 pm
SFO
-
FNC
1 stop20h 15m
TAP AIR PORTUGAL
Tue 5/125:50 am
FNC
-
SFO
1 stop16h 45m
TAP AIR PORTUGAL
Deal found 1/29$491

Find flight deals from Fremont to Portugal

Keep the following information in mind while searching for Fremont to Portugal flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$431
(oojo)

One-way from

$231
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$643
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
From Fremont to Portugal
One-way flight from Fremont to Portugal
Highest demand for flights based on searches. 16% potential increase in price ($156 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in January 2026

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 January 29, 2026.
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

Fri 3/13

8:10 pm-11:50 pm

1 stop20h 40m

Faro

Fri 3/20

6:05 am-5:05 pm

1 stop18h 00m

$432

San FranciscoLajes

SFO - TER

SFOTER

San Francisco

Fri 3/13

8:10 pm-11:00 am

1 stop32h 50m

Lajes

Fri 3/20

11:50 am-3:45 pm

1 stop33h 55m

$500

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 2/24

1:15 pm-5:30 pm

2 stops20h 15m

Lisbon Humberto Delgado

Wed 3/18

5:00 am-4:04 pm

2 stops18h 04m

$507

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sun 4/12

9:05 pm-10:45 pm

1 stop17h 40m

Lisbon Humberto Delgado

Mon 4/20

7:25 am-12:40 pm

1 stop37h 15m

$514

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 2/23

9:10 am-9:00 am

1 stop15h 50m

Lisbon Humberto Delgado

Sun 3/8

11:25 am-12:50 pm

1 stop32h 25m

$515

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 4/23

9:05 pm-10:45 pm

1 stop17h 40m

Lisbon Humberto Delgado

Wed 4/29

5:05 am-12:40 pm

1 stop15h 35m

$516

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 3/17

5:00 am-8:10 am

2 stops20h 10m

Lisbon Humberto Delgado

Wed 3/25

11:55 am-9:39 am

2 stops28h 44m

$517

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sat 3/21

10:40 pm-11:30 pm

1 stop17h 50m

Lisbon Humberto Delgado

Thu 4/2

5:05 am-3:25 pm

1 stop18h 20m

$517

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 3/24

10:40 pm-11:30 pm

1 stop17h 50m

Lisbon Humberto Delgado

Thu 4/2

12:20 pm-7:05 am

2 stops26h 45m

$521

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 3/24

7:25 am-8:00 am

1 stop17h 35m

Lisbon Humberto Delgado

Tue 4/7

11:55 am-11:45 am

1 stop31h 50m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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, March is the cheapest month in which you can book a flight from Fremont to Portugal (average of $468). Flying from Fremont to Portugal in June is currently the most expensive (average of $761). 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 January 29, 2026.

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.

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 January 29, 2026.
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.

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

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.

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

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.

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

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.

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

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.

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

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.

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

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?

  • How long is the flight from Fremont to Portugal?

    Airlines like TAP AIR PORTUGAL, Delta, and United Airlines fly from Fremont to Portugal in about 17h 40m. The time it takes to get you to your destination can typically vary by up to 3h. There are 5664 mi between Fremont and Portugal. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $245 on British Airways. Other airlines that offer cheap prices include Iberia from $256 and American Airlines from $256 one-way.

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

  • 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 (77%), JetBlue (77%), TAP AIR PORTUGAL (77%).

  • What are the cheapest flights from Fremont to Portugal?

    Looking at all options, your cheapest flight can be booked for $318. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $443 on average, our data indicates $1,938 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, March is the cheapest month in which you can book a flight from Fremont to Portugal (average of $468). Flying from Fremont to Portugal in June is currently the most expensive (average of $761). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Fremont to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$291Average$718FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$309Average$986FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$409Average$658FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$473Average$721FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$488Average$1,086FlexibilityNo cancel feeOn-time76%
KLMCheapest$489Average$614FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$510Average$742FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$511Average$1,084FlexibilityNo cancel feeOn-time69%
DeltaCheapest$524Average$999FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$532Average$886FlexibilityNo cancel feeOn-time88%

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