$381+ Cheap flights from Fremont, CA to Porto (OPO)
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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Fremont to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Fremont to Porto are usually found in January or February, booked 55 days in advance, depart on a Thursday or Monday and return on a Wednesday
Cheap flight deals from Fremont to Porto
Keep the following information in mind while searching for Fremont to Porto flight deals. Data was last updated April 29, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $817 (Booking.com) |
One-way from | $381 (Iberia) |
Popular in | June |
Cheapest in | January |
Average price | $927 |
Find flight deals from Fremont to Porto
Cheapest flights from Fremont to PortoExplore the most affordable flight options available from Fremont to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
Explore the most affordable flight options available from Fremont to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
This KLM deal was found by Cheapflights users on 4/28. 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.
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 4/28. 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.
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Fremont to Porto 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 April 29, 2025.
Use the filters below to find and compare flights from Fremont to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sat 7/12
10:44 pm-7:35 am
2 stops24h 51m
Porto
Mon 8/11
9:10 pm-8:18 pm
2 stops31h 08m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sun 5/11
8:00 pm-9:20 pm
1 stop17h 20m
Porto
Sat 5/24
8:30 am-7:31 am
2 stops31h 01m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sun 5/18
8:00 pm-9:20 pm
1 stop17h 20m
Porto
Tue 6/3
8:35 am-6:00 pm
1 stop17h 25m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Mon 5/26
1:30 pm-11:55 am
1 stop14h 25m
Porto
Tue 6/3
1:30 pm-12:30 pm
1 stop31h 00m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Fri 5/9
8:20 pm-7:00 pm
1 stop14h 40m
Porto
Thu 5/22
7:00 am-2:30 pm
1 stop15h 30m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Fri 5/9
7:21 am-11:40 am
2 stops20h 19m
Porto
Thu 5/22
12:20 pm-12:06 am
2 stops19h 46m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Thu 5/15
7:30 pm-6:30 pm
1 stop15h 00m
Porto
Sat 5/24
8:40 am-4:10 pm
1 stop15h 30m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sun 7/13
11:47 pm-9:35 am
1 stop25h 48m
Porto
Tue 7/22
12:50 pm-1:40 pm
2 stops32h 50m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Tue 7/8
11:47 pm-9:20 am
1 stop25h 33m
Porto
Thu 7/17
12:10 pm-11:29 am
2 stops31h 19m
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sat 5/17
8:00 pm-9:20 pm
1 stop17h 20m
Porto
Thu 6/5
8:40 am-6:00 pm
1 stop17h 20m
Best time to book a flight from Fremont to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Fremont with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Fremont to Porto
How far ahead should I book a flight from Fremont to Porto?
Use this chart to determine the optimal time to book a round-trip flight from Fremont to Porto. Price data was last updated on April 25, 2025.
The price you pay for your flight from Fremont to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Fremont to Porto?
Currently, January is the cheapest month in which you can book a flight from Fremont to Porto (average of $523). Flying from Fremont to Porto in June is currently the most expensive (average of $1,071). 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 OPO?
Find hourly flight availability from Fremont to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.
When flying from Fremont to Porto, 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 Porto?
Use this chart to determine the cheapest time to fly round-trip from Fremont to Porto. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Fremont to Porto flight should consider departing on Sunday 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.
Rainfall in Porto by month
Plan your trip to Porto by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.
Temperature in Porto by month
Plan your trip to Porto by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated April 29, 2025.
Read reviews from past customers who have flown Delta, Air Transat and SWISS from Fremont to Porto. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Fremont to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Fremont to Porto
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Fremont to Porto
Discover the top 10 airlines that operate flights from Fremont to Porto. 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 April 29, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$375 | Average$896 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$556 | Average$1,146 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$624 | Average$782 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$685 | Average$1,002 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$702 | Average$1,106 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$706 | Average$1,130 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$710 | Average$1,019 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$711 | Average$1,051 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$756 | Average$949 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$781 | Average$817 | FlexibilityNo cancel fee | On-time50% |