Cheap Flights from Portland (PDX) to San Carlos (SQL)

Popular airlines from Portland International Airport (PDX) to San Carlos, CA (SQL)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Flights from Portland (PDX) to San Carlos (SQL)
Origin airport
Portland Intl.
Destination airport
San Carlos
Distance
558 mi

Portland to San Carlos Flights

The cheapest times to fly from Portland to San Carlos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to San Carlos are during the month of . You can find some of the cheapest flights from Portland to San Carlos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to San Carlos

Sunday is one of the best days to book for cheap flights from Portland to San Carlos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to San Carlos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to San Carlos in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to San Carlos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to San Carlos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to San Carlos Airport (SQL) cost?
Discover the latest flight deals from PDX to SQL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PDX to SQL?
The cheapest flights from PDX to SQL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PDX to SQL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PDX to SQL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Portland Intl. Airport (PDX) to San Carlos Airport (SQL)?
You'll need to catch a flight with a layover if you're traveling from Portland Intl. Airport (PDX) to San Carlos Airport (SQL). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PDX to SQL?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to San Carlos Airport (SQL)?
To reach San Carlos Airport (SQL) on schedule, choose a flight that takes off from Portland Intl. Airport (PDX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Francisco from Portland Intl. Airport (PDX)?
Portland Intl. Airport (PDX) offers direct flights to San Francisco. These are some of the airports you can fly straight to:
  • San Francisco Intl. Airport (SFO)
  • Norman Y. Mineta San Jose Intl. Airport (SJC)
  • Oakland Intl. Airport (OAK)

Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to San Carlos Airport (SQL) last-minute?
Waiting until just before your departure to book your flight from PDX to SQL generally means paying more. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a PDX to SQL flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to SQL flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place takes the hassle out of travel planning. Just pick your flights and select from our wide range of hotels, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to San Carlos Airport (SQL)?
Typically, you can cancel or modify your PDX to SQL flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.