$69 Find Cheap Flights from Portland to Fremont

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Fremont departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$151
Overall average: $212
Southwest
Tue 4/14Wed 4/15
PDX - SFO • 1 stop
Cheapest non-stop
$155
Typical prices: $174-$324
Alaska Airlines
Sat 5/2Sun 5/3
PDX - SFO • Non-stop
Arrival airport
You can't fly directly to Fremont. It is served by San Francisco (SFO), located 21.9 miles from Fremont.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Portland to Fremont (PDX-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Fremont that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Fremont

Tue, Apr 14 - Wed, Apr 15
Southwest Logo
11:15 am - 7:05 pm
PDX
-
SFO
7h 50m
1 stop
Southwest Logo
7:40 am - 1:50 pm
SFO
-
PDX
6h 10m
1 stop
$151Southwest
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
1:48 pm - 11:25 pm
PDX
-
SFO
9h 37m
1 stop
Multiple Airlines Logo
8:00 am - 9:50 am
SFO
-
PDX
1h 50mnonstop
$154Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
1:48 pm - 11:25 pm
PDX
-
SFO
9h 37m
1 stop
Multiple Airlines Logo
12:00 pm - 1:50 pm
SFO
-
PDX
1h 50mnonstop
$155Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Southwest Logo
11:45 am - 10:05 pm
PDX
-
SFO
10h 20m
1 stop
Southwest Logo
10:30 am - 5:35 pm
SFO
-
PDX
7h 05m
1 stop
$156Southwest
Tue, May 19 - Tue, May 26
Alaska Airlines Logo
5:59 pm - 7:56 pm
PDX
-
SFO
1h 57mnonstop
Alaska Airlines Logo
7:40 am - 9:29 am
SFO
-
PDX
1h 49mnonstop
$157Alaska Airlines
Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
12:27 pm - 9:13 am
PDX
-
SFO
20h 46m
1 stop
Multiple Airlines Logo
12:00 pm - 1:50 pm
SFO
-
PDX
1h 50mnonstop
$161Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
7:40 am - 8:05 pm
PDX
-
SFO
12h 25m
2 stops
Southwest Logo
7:40 am - 1:50 pm
SFO
-
PDX
6h 10m
1 stop
$162Southwest
Sat, Apr 18 - Wed, Apr 22
Delta Logo
5:59 pm - 11:35 pm
PDX
-
SFO
5h 36m
1 stop
Delta Logo
2:57 pm - 6:52 pm
SFO
-
PDX
3h 55m
1 stop
$167Delta
Wed, May 6 - Thu, May 7
Multiple Airlines Logo
7:00 am - 9:04 am
PDX
-
SFO
2h 04mnonstop
Multiple Airlines Logo
3:33 pm - 8:51 pm
SFO
-
PDX
5h 18m
1 stop
$170Multiple Airlines
Tue, Apr 21 - Wed, Apr 29
Frontier Logo
12:38 pm - 11:25 pm
PDX
-
SFO
10h 47m
1 stop
Frontier Logo
6:29 pm - 11:50 am
SFO
-
PDX
17h 21m
1 stop
$171Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$69
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Portland to San Francisco

When to book flights from Portland to Fremont

Are your dates flexible? Find out the best times to travel from Portland to Fremont based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Portland to Fremont: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Portland to Fremont 
MichaelFlew with United Airlines
PDX
-
SFO
Jan 2026
The Portland airport is very easy to get into (traffic, TSA, etc.) Sunday late afternoon/evening.
Verified travelerFlew with Alaska Airlines
PDX
-
SFO
May 2025
My mom told me prior to boarding an airplane I should empty my bladder. As I age, that advice becomes more sage.
RobertFlew with Alaska Airlines
PDX
-
SFO
May 2025
That flights from Portland to S.F. with an international Eva air connect require checking in again before boarding

FAQs for booking flights from Portland to Fremont

  • Which airports will I be using when flying from Portland to Fremont?

    When flying out of Portland you’ll be using Portland. Fremont does not have its own airport so you’ll be flying into nearby San Francisco airport, which is 21.9 mi away.

  • How long does a flight from Portland to Fremont take?

    Direct flights cover the 550 miles separating Portland and Fremont in about 1h 47m.

  • How many flights are there between Portland and Fremont?

    72 direct flights run between Portland and Fremont on a daily basis. On average, there are about 504 departures each week.

  • What’s the cheapest day of the week to fly between Portland and Fremont?

    Consider leaving on a Thursday and avoid Saturdays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Sundays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Portland to Fremont?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Fremont.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Fremont?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Fremont from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Fremont?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Fremont with an airline and back to Portland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Fremont?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Fremont from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Portland to Fremont?

    In the last 72 hours, the cheapest one-way ticket between Portland and Fremont found on KAYAK was with Frontier for $44. Frontier offered a round-trip connection from $44 and Hawaiian Airlines from $77.

Top tips for finding cheap flights from Portland to Fremont

  • There is no airport in Fremont. Instead, you’ll be flying into San Francisco Airport when flying between Portland and Fremont.
  • The cheapest flight from Portland to Fremont was found 86 days before departure, on average.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is January.

Reviews of the top 5 airlines serving Portland to Fremont

 
Need help choosing which airline to fly with from Portland to Fremont? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12082 reviews
8.5Crew
8.1Boarding
7.0Food
7.0Entertainment
7.8Comfort
Airline reviews

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

6.0 GoodJack, Feb 2026
PDX - SFO
Read more Alaska Airlines reviews

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

we waited for 50 minutes to check a bag and missed a flight. do better.

The flight crew was very professional and pleasant. Our flight was delayed 3 hours, but Kayak informed me in advance

Before I even boarded this old white man , a fat Samoan lady, and a short brown guy were at the desk. They asked if we could have 15 volunteers to get free checked bags cause it was a full flight. I waited in line, I got up to the short brown guy and he asked for my boarding pass and I showed him, he said that he can’t check my bag because I wasn’t given a seat yet. So he had me go to the next line with the old white guy, but before I switched lines I asked him, well if I go to that line, will I be able to check my bag so I waited in line and he said yeah, it doesn’t matter , I’m good. So I switch lines and wait in the line of the old white man, with every guest before me he was very sweet , making small talk, smiling and had great eye contact( all of the people he was talking to was white) I come up and he doesn’t look at me , then says I’ll be right with you, I wait for him to initiate and when he does he’s like what’s up? I was like the man next to you told me I needed to get checked in before I can check my bag. He’s like what’s your last name and I say Valenzuela , and he said we’re not there yet, all while not smiling, no eye contact like he was with the other guests. He said we’re will call you when I get to you. So I go sit down and I’m sitting down for less than a minute and he calls me and someone else. I go up and say Valenzuela and he’s like who are you and I’m like Valenzuela , he’s like hmm and says don’t go anywhere and calls someone else. I finally get my seat and I go back to the short brown man and ask if I can check my bag and he said there isn’t any room available and I was like? Wait you told me and then the fat Samoan lady said yeah we don’t need anymore bags thank you. I was dumbfounded and just walked away. So rude. Terrible experience and terrible communication on their end.

The flight was delayed, but once it arrived everything moved right along.

Great airline. Sat next to a really big person tho

The checking was disaster, the crew wasn't behave well. It took us two hours to check in, after that thr line at the TSA was long, we barely make the flight. Bad airline

I like that if they asked you to checked in a bag at the gate they give you priority to board

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

Previously flown Hawaiian Airlines on similar routes, I found Alaska Airlines to be noticeably more comfortable. The seats on Alaska Airlines provided better support and cushioning, which made a significant difference on the long flight to the islands. When you’re spending 5-6 hours in the air, seat comfort really matters, and Alaska Airlines delivered where it counts. After comparing both carriers, I’ve decided to book with Alaska Airlines for all my future Hawaii trips. The superior seat comfort alone makes it worth choosing Alaska over Hawaiian Airlines. If you’re planning a trip to Hawaii and prioritizing comfort, I’d recommend giving Alaska Airlines a try. You won’t be disappointed. Highly recommended for Hawaii travel!

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

The crew was EXTREMELY helpful And sweet and the flight was smooth!

The Kayak confirmation number did not work for checking in the day before. I checked in at 8.30 using my ticket number. When I arrived at the airport, I was informed that the flight was overbooked, and since I had checked in late, I did not have a seat. The Next flight was not until ten PM. I called my wife, who had been taking care of our kids all weekend, and she was upset, calling me a liar and telling me to stay in SD. It turned my weekend getaway into a nightmare! I blame the Kayak website and will not book flights using your app in the future.

One hour waiting time after boarding, but arrived in time. I am satisfied

Flying with Hawaiian Airlines is a treat! They have the best crew, food and drinks! I’ve always enjoyed flying with Hawaiian Airlines and will continue to use them!

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

Everything you need to know for your flight from Portland to Fremont

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