HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Fremont

$55+ Cheap flights from Portland (PDX) to Fremont, CA

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SFO
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Fremont 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 Portland to Fremont are usually found in January or December, booked 62 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Portland to Fremont

Keep the following information in mind while searching for Portland to Fremont flight deals. Data was last updated October 28, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$126
(Kiwi.com)

One-way from

$55
(CheapOair)

Popular in

March

Cheapest in

January

Average price

$199
Provider with most accurate pricing for Portland-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San Francisco flights.
Search Deals
From Portland to Fremont
Search Deals
One-way flight from Portland to Fremont
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Portland to Fremont

Cheapest flights from Portland to Fremont
Explore the most affordable flight options available from Portland to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:36 amPDX - SFO
Nonstop1h 53mHawaiian Airlines
Mon 12/88:00 amSFO - PDX
Nonstop1h 50mHawaiian Airlines
Deal found 10/26$126
This Trip.com deal was found by Cheapflights users on 10/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:51 pmPDX - SFO
1 stop19h 02mMultiple Airlines
Mon 12/86:59 pmSFO - PDX
Nonstop1h 51mMultiple Airlines
Deal found 10/26$128
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:36 amPDX - SFO
Nonstop1h 53mAlaska Airlines
Mon 12/88:00 amSFO - PDX
Nonstop1h 50mAlaska Airlines
Deal found 10/28$132
This Expedia deal was found by Cheapflights users on 10/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:52 pmPDX - SFO
1 stop9h 35mMultiple Airlines
Tue 11/1811:29 amSFO - PDX
Nonstop1h 54mMultiple Airlines
Deal found 10/26$134
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:50 pmPDX - SFO
Nonstop1h 59mAlaska Airlines
Tue 12/307:20 pmSFO - PDX
Nonstop1h 51mAlaska Airlines
Deal found 10/26$136
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:15 amPDX - SFO
Nonstop2h 02mAlaska Airlines
Thu 1/87:57 amSFO - PDX
Nonstop1h 52mAlaska Airlines
Deal found 10/28$137
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:30 amPDX - SFO
Nonstop1h 57mUnited Airlines
Thu 1/18:55 pmSFO - PDX
Nonstop1h 51mUnited Airlines
Deal found 10/28$139
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:51 pmPDX - SFO
1 stop19h 02mMultiple Airlines
Thu 12/187:45 amSFO - PDX
Nonstop1h 50mMultiple Airlines
Deal found 10/27$140

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Fremont 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 28, 2025.
Use the filters below to find and compare flights from Portland to Fremont that are best for you.

Fly from

Portland

Fly to

Fremont

Route

Depart

Return

Price

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 11/18

10:40 am-12:35 pm

Nonstop1h 55m

San Francisco

Tue 11/18

3:01 pm-4:50 pm

Nonstop1h 49m

$131

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 2/7

5:35 am-7:32 am

Nonstop1h 57m

San Francisco

Tue 2/10

10:48 am-12:41 pm

Nonstop1h 53m

$137

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 2/7

5:51 pm-7:50 pm

Nonstop1h 59m

San Francisco

Tue 2/10

11:36 am-1:33 pm

Nonstop1h 57m

$137

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 12/18

9:58 am-12:00 pm

Nonstop2h 02m

San Francisco

Thu 1/8

2:58 pm-4:50 pm

Nonstop1h 52m

$137

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sun 12/21

7:30 am-9:27 am

Nonstop1h 57m

San Francisco

Tue 12/30

8:55 pm-10:46 pm

Nonstop1h 51m

$147

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 1/6

1:51 pm-8:17 pm

1 stop6h 26m

San Francisco

Mon 1/12

2:58 pm-4:50 pm

Nonstop1h 52m

$147

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 12/10

2:37 pm-8:15 pm

1 stop5h 38m

San Francisco

Sat 12/13

6:59 pm-8:50 pm

Nonstop1h 51m

$147

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 1/28

10:33 am-12:23 pm

Nonstop1h 50m

San Francisco

Sun 2/1

6:56 pm-8:50 pm

Nonstop1h 54m

$147

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 2/7

10:33 am-12:23 pm

Nonstop1h 50m

San Francisco

Sun 2/8

7:57 am-9:49 am

Nonstop1h 52m

$147

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 12/20

5:50 pm-7:49 pm

Nonstop1h 59m

San Francisco

Thu 1/1

11:53 am-1:47 pm

Nonstop1h 54m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Portland to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Portland 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 Portland to Fremont

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Fremont. Price data was last updated on October 24, 2025.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Fremont. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Portland to Fremont (average of $36). Flying from Portland to Fremont in March is currently the most expensive (average of $132). 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 PDX to FR8?

Find hourly flight availability from Portland to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Portland to Fremont at noon. Doing so could potentially save you 39% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

Travelers seeking maximum savings on their Portland to Fremont flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Fremont

Explore weekly flight availability from Portland to Fremont. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 28, 2025.

The most flights from PDX to FR8 are scheduled on a Monday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (35 on average).

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated October 28, 2025.
See what other customers who have flown with Alaska Airlines, Hawaiian Airlines, and United Airlines from Portland to Fremont have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,199 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,199 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,794 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,996 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,034 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,122 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Portland to Fremont. 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 from for flights from Portland to Fremont?

    Most people fly from Portland (PDX) if they book a flight from Portland to Fremont. On average, Portland has 48 outbound flights to Fremont per day from 7 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • How popular is this Portland to Fremont flight route?

    Flights from Portland to Fremont have been viewed 145 times in the past calendar month.

  • How long is the flight from Portland to Fremont?

    For as low as $131, Alaska Airlines can have you in Fremont from Portland in 1h 55m. Portland and Fremont are separated by a distance of 550 mi. All flights are typically nonstop.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $61. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Portland to Fremont for a low price.

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

    The top 3 most reliable airlines when flying from Portland to Fremont are Frontier (100%), Iberia (93%) and Air China (89%).

  • What are the cheapest flights from Portland to Fremont?

    Looking for the cheapest flight from Portland to Fremont? While on average our users pay $782, our data indicates the cheapest price to be $78. The most popular route (Portland - San Francisco), is priced around $97.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Portland to Fremont (average of $36). Flying from Portland to Fremont in March is currently the most expensive (average of $132). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Fremont

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Los Angeles flights
Portland to Las Vegas flights
Portland to San Francisco flights
Portland to Santa Ana flights
Portland to Ontario flights
Portland to Burbank flights
Boise to Las Vegas flights
Portland to San Diego flights
Boise to Los Angeles flights
Portland to Palm Springs flights
Portland to San Jose flights
Portland to Oakland flights
Portland to Sacramento flights
Eugene to Los Angeles flights
Eugene to Las Vegas flights
Eugene to San Diego flights
Boise to San Diego flights
Redmond to Los Angeles flights
Medford to Los Angeles flights
Boise to San Francisco flights
Portland to Reno flights
Portland to Long Beach flights
Portland to Santa Barbara flights
Boise to Santa Ana flights
Redmond to Las Vegas flights
Boise to Ontario flights
Portland to San Luis Obispo flights
Eugene to San Francisco flights
Redmond to San Francisco flights
Medford to Las Vegas flights
Eugene to Santa Ana flights
Eugene to Burbank flights
Redmond to San Diego flights
Eugene to Ontario flights
Boise to Sacramento flights
Medford to San Diego flights
Boise to Burbank flights
Medford to San Francisco flights
Eugene to Sacramento flights
Portland to Fresno flights
Redmond to Burbank flights
Eugene to Palm Springs flights
Eugene to Oakland flights
Eugene to San Jose flights
Redmond to Palm Springs flights
Boise to Palm Springs flights
Redmond to Ontario flights
Medford to Ontario flights
Medford to Burbank flights
Boise to Fresno flights

Top 7 airlines flying from Portland to Fremont

Discover the top 7 airlines that operate flights from Portland to Fremont. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$36Average$109FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$63Average$255FlexibilityNo cancel feeOn-time75%
Spirit AirlinesCheapest$73Average$181FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$78Average$229FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$97Average$224FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$106Average$228FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$224Average$372FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.