Cheap Flights from Santa Rosa (STS) to San Carlos (SQL)

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to San Carlos, CA (SQL)

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Alternative airports near San Carlos

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Norman Y. Mineta San Jose Intl. SJC. Cheapest option available. Average driving time to city center is 26 minutes. Flights from $468
SJC
Norman Y. Mineta San Jose Intl.
Cheapest
Average driving time to city center26 min
Flights from $468
Flights from Santa Rosa (STS) to San Carlos (SQL)
Origin airport
Sonoma County
Destination airport
San Carlos
Distance
75 mi

Santa Rosa to San Carlos Flights

The cheapest times to fly from Santa Rosa 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 Santa Rosa to San Carlos are during the month of . You can find some of the cheapest flights from Santa Rosa to San Carlos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Santa Rosa to San Carlos

Sunday is one of the best days to book for cheap flights from Santa Rosa 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 Santa Rosa 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 Santa Rosa to San Carlos in 2026. 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 Santa Rosa 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 Santa Rosa 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 Sonoma County Airport (STS) to San Carlos Airport (SQL) cost?
Grab a cheap one-way flight or cheap return flight from Sonoma County Airport (STS) to San Carlos Airport (SQL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sonoma County Airport (STS) to San Carlos Airport (SQL)?
is the most affordable month to fly from STS to SQL. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Sonoma County Airport (STS) to San Carlos Airport (SQL)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STS to SQL. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Sonoma County Airport (STS) to San Carlos Airport (SQL)?
Direct flights from Sonoma County Airport (STS) to San Carlos Airport (SQL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STS to SQL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 Sonoma County Airport (STS) to San Carlos Airport (SQL)?
To avoid potential delays on the Sonoma County Airport (STS) to San Carlos Airport (SQL) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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.
Is it cheaper to buy a plane ticket from Sonoma County Airport (STS) to San Carlos Airport (SQL) last-minute?
Holding off until just before your departure to book your flight from STS to SQL often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book a STS to SQL flight and hotel package?
Securing a STS to SQL flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sonoma County Airport (STS) to San Carlos Airport (SQL)?
You can usually cancel or reschedule your STS to SQL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.