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$398+ Cheap flights from Fremont, CA to Lisbon (LIS)

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Lisbon Humberto Delgado are usually found in January or February, booked 59 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Fremont to Lisbon

Cheapest flights from Fremont to Lisbon
Explore the most affordable flight options available from Fremont to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Finnair deal was found by Cheapflights users on 12/13. 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.
Mon 12/296:10 amSFO - LIS
1 stop18h 55mMultiple Airlines
Tue 1/206:30 amLIS - SFO
2 stops26h 17mMultiple Airlines
Deal found 12/13$508
This Expedia deal was found by Cheapflights users on 12/13. 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 12/299:40 pmSFO - LIS
1 stop17h 50mLufthansa
Mon 1/266:50 pmLIS - SFO
2 stops25h 50mLufthansa
Deal found 12/13$524
This FlightHub deal was found by Cheapflights users on 12/13. 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.
Tue 12/307:25 pmSFO - LIS
1 stop32h 20mSWISS
Mon 1/193:25 pmLIS - SFO
2 stops29h 55mSWISS
Deal found 12/13$526
This CheapOair deal was found by Cheapflights users on 12/13. 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.
Tue 12/305:25 pmSFO - LIS
2 stops34h 20mMultiple Airlines
Wed 1/1411:20 amLIS - SFO
2 stops19h 38mMultiple Airlines
Deal found 12/13$530
This FlightHub deal was found by Cheapflights users on 12/14. 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.
Tue 12/302:40 pmSFO - LIS
1 stop17h 00mLufthansa
Mon 1/196:50 pmLIS - SFO
2 stops29h 05mLufthansa
Deal found 12/14$548
This Trip.com deal was found by Cheapflights users on 12/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/158:25 amSFO - LIS
1 stop17h 50mLufthansa
Mon 12/223:55 pmLIS - SFO
1 stop36h 15mLufthansa
Deal found 12/14$560
This KAYAK deal was found by Cheapflights users on 12/13. 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.
Mon 12/299:40 pmSFO - LIS
2 stops31h 10mBrussels Airlines
Mon 1/261:40 pmLIS - SFO
2 stops37h 55mBrussels Airlines
Deal found 12/13$571
This Mytrip deal was found by Cheapflights users on 12/13. 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.
Sun 12/148:35 amSFO - LIS
1 stop15h 35mMultiple Airlines
Sun 12/2110:50 amLIS - SFO
1 stop18h 03mMultiple Airlines
Deal found 12/13$587
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/141:00 pmSFO - LIS
1 stop13h 15mUnited Airlines
Sun 12/2110:50 amLIS - SFO
1 stop18h 03mUnited Airlines
Deal found 12/13$592

Find flight deals from Fremont to Lisbon

Keep the following information in mind while searching for Fremont to Lisbon flight deals. Data was last updated December 15, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$505
(Delta)

One-way from

$398
(Ovago)

Popular in

June

Cheapest in

January

Average price

$974
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 Lisbon Humberto Delgado
Search Deals
One-way flight from Fremont to Lisbon Humberto Delgado
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 December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Lisbon 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 December 15, 2025.
Use the filters below to find and compare flights from Fremont to Lisbon that are best for you.

Fly from

Fremont

Fly to

Lisbon

Route

Depart

Return

Price

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sun 3/1

9:30 pm-9:00 am

2 stops27h 30m

Lisbon Humberto Delgado

Tue 3/31

5:00 am-5:28 pm

2 stops20h 28m

$505

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sat 1/10

9:00 pm-8:00 am

1 stop27h 00m

Lisbon Humberto Delgado

Fri 1/23

5:30 am-1:25 pm

1 stop15h 55m

$508

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 3/5

8:25 am-7:55 am

1 stop15h 30m

Lisbon Humberto Delgado

Wed 3/11

5:00 am-9:10 pm

1 stop23h 10m

$510

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 2/26

8:25 am-7:55 am

1 stop15h 30m

Lisbon Humberto Delgado

Thu 4/2

6:15 am-7:00 pm

1 stop20h 45m

$512

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 3/2

8:54 am-3:10 pm

2 stops22h 16m

Lisbon Humberto Delgado

Mon 3/30

9:50 am-12:50 pm

1 stop35h 00m

$514

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 3/5

5:05 am-7:55 am

2 stops18h 50m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-1:40 pm

1 stop15h 40m

$514

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 1/26

6:25 am-8:10 am

2 stops17h 45m

Lisbon Humberto Delgado

Mon 2/16

11:20 am-2:59 pm

2 stops35h 39m

$521

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sun 3/1

10:20 am-3:10 pm

2 stops20h 50m

Lisbon Humberto Delgado

Mon 3/9

5:00 am-8:23 pm

2 stops22h 23m

$528

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 3/10

8:25 pm-11:45 am

1 stop32h 20m

Lisbon Humberto Delgado

Mon 3/16

7:45 pm-5:30 pm

2 stops28h 45m

$536

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sat 2/21

6:10 am-8:00 am

2 stops41h 50m

Lisbon Humberto Delgado

Sat 2/28

11:25 am-10:41 pm

2 stops43h 16m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 23 results
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Best time to book a flight from Fremont to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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 Lisbon

How far ahead should I book a flight from Fremont to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Lisbon. Price data was last updated on December 12, 2025.

The best time to book flights from Fremont to Lisbon is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Fremont to Lisbon (average of $488). Flying from Fremont to Lisbon in June is currently the most expensive (average of $783). 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 LIS?

Find hourly flight availability from Fremont to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

When flying from Fremont to Lisbon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 17% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Fremont to Lisbon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Fremont to Lisbon 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.

How much does it cost to fly round-trip from Fremont to Lisbon?

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated December 15, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and TAP AIR PORTUGAL from Fremont to Lisbon 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
8,008 reviews

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

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
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

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.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

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.
TAP AIR PORTUGAL
7.2
Good
2,089 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

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 Canada
7.1
Good
10,525 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

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.
British Airways
6.7
Okay
7,575 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

7.9

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 Lisbon. 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 into for flights to Lisbon from Fremont?

    Located just 4.2 mi from the city center, Lisbon Humberto Delgado is the airport most travelers will use when flying to Lisbon from Fremont. Booking flights from Fremont to Humberto Delgado (LIS) should be relatively easy as there is 1 daily inbound flight from Fremont from 17 different airlines.

  • How popular is this Fremont to Lisbon flight route?

    Within the past month, 20 users have taken a look at flights from Fremont to Lisbon Humberto Delgado.

  • How long is the flight from Fremont to Lisbon?

    Departing from Fremont to Lisbon will take you 15h 30m. The distance between Fremont and Lisbon is about 5664 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Iberia. According to our data, you can fly for as low as $258. Users have also found prices from $260 and $316 on LEVEL and TAP AIR PORTUGAL, respectively.

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

    Before booking your flight to Lisbon from Fremont, check out the most reliable airlines to get you to your destination on time: Etihad Airways (80%), JetBlue (78%), TAP AIR PORTUGAL( 78%).

  • What are the cheapest flights from Fremont to Lisbon?

    The cheapest flight price from Fremont to Lisbon is $318. On average you can expect to pay $1,682. The most popular route, (San Francisco - Lisbon Humberto Delgado), can usually be booked for $439.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Fremont to Lisbon (average of $488). Flying from Fremont to Lisbon in June is currently the most expensive (average of $783). 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

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Oeiras
Ericeira
Costa da Caparica
Torres Vedras
Beja
Nazaré
Sesimbra
Colares

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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 Lisbon

Discover the top 10 airlines that operate flights from Fremont to Lisbon. 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$351Average$745FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$363Average$856FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$409Average$586FlexibilityNo cancel feeOn-time77%
KLMCheapest$489Average$701FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$495Average$760FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$496Average$774FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$515Average$747FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$516Average$786FlexibilityNo cancel feeOn-time69%
VuelingCheapest$532Average$774FlexibilityNo cancel feeOn-time88%
DeltaCheapest$540Average$862FlexibilityNo cancel feeOn-timeN/A

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