Cheap flights from Santa Rosa to San Francisco International

Compare Santa Rosa to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Santa Rosa to San Francisco International

Looking for a cheap last-minute deal or the best round-trip flight from Santa Rosa Airport to San Francisco International Airport? If you want to travel next month, round-trip fares start from $282. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Santa Rosa to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Santa Rosa to San Francisco International flights are currently cheapest in June.

Santa Rosa to San Francisco: Flight information

The things to know before you go.
Cheapest flight found$282
Cheapest month to flyJune

Finding cheap flights from Santa Rosa to San Francisco International: Frequently asked questions

The best price we found for a round-trip flight from Santa Rosa to San Francisco International is $282. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Santa Rosa to San Francisco International. But we found flights with one or more stops from $282.
There are no flights flying from Santa Rosa to San Francisco International, as of May 2026.
The cheapest month to fly from Santa Rosa to San Francisco International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Santa Rosa Airport to San Francisco International Airport on Tuesday, June 9, 2026.
No airlines currently offer direct flights between Santa Rosa Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to San Francisco International.

Flying from Sonoma County Airport (STS) to San Francisco International Airport (SFO): what you need to know

  • Santa Rosa and San Francisco are in the same timezone, UTC-7.

  • Your STS to SFO flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • During popular months such as October, you'll want to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead of international flights when you fly during a high season in general.

  • Opt for a stopover if you want to break up your flight. Just uncheck 'Direct flights only' to look at all your options for tickets from Sonoma County Airport to San Francisco International Airport. Phoenix Sky Harbor International Airport is a popular stopover on the STS to SFO route.

How to find the cheapest flights from Sonoma County Airport (STS) to San Francisco International Airport (SFO)

  • Currently, $157 is the cheapest price we've seen for a one-way Sonoma County Airport to San Francisco International Airport flight. The best price for a return plane ticket is $282. Remember that fares may change due to demand when booking.

  • Don't leave things to the last moment. You're more likely to get cheap tickets from STS to SFO if you book in advance. Airlines often have some terrific early bird deals.

  • The 'Whole month' search tool shows you the cheapest flights from Sonoma County Airport to San Francisco International Airport across every month. It's an easy way to find a bargain if your travel plans are flexible.

  • Getting your hands on cheap flights from STS to SFO is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Discover the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Sonoma County Airport to San Francisco International Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about Sonoma County Airport (STS)

  • STS's address is 2200 Airport Boulevard.

  • When it comes to the on-time performance of Sonoma County Airport, data shows 73.45% of flights meet their scheduled arrival time.

  • Sonoma County Airport is around 13 kilometers from central Santa Rosa. If you're ride-sharing, catching a cab or driving from the center, it'll take 15 minutes or so to arrive, depending on the traffic.

  • The trip when using public transport will take about 35 minutes.

  • Get your trip off to a leisurely start by staying near STS. Whether you have an early flight from Sonoma County Airport to San Francisco International Airport or want to avoid feeling rushed, these hotels are the answer:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • From San Francisco International Airport, San Francisco is approximately 21 kilometers away. It takes around 20 minutes to get to the center driving.

  • It typically takes 45 minutes to get there by public transport.

When to fly to San Francisco International Airport (SFO)

  • August is the busiest month for flights from Sonoma County Airport to San Francisco International Airport. To avoid the crowds, visit San Francisco in February.

  • When reserving your flight from Sonoma County Airport to San Francisco International Airport, think about the kind of weather you like. September is the warmest month in San Francisco, with temperatures ranging from 12ºC (54ºF) to 22ºC (72ºF).

  • January has average temperatures of between 6ºC (43ºF) and 16ºC (61ºF). Look for cheap tickets from STS to SFO sometime around then if you want to travel in cooler conditions.

Explore more of United States

  • San Francisco has plenty going for it, but there are so many other corners of United States just waiting to be discovered. Around 64 kilometers south-east of San Francisco, a visit to San Jose will fill your itinerary to the brim. Start with leading attractions like Winchester Mystery House, Rosicrucian Egyptian Museum and San Jose Museum of Art.

  • If you're interested in discovering another major stop in United States, head for Fresno, roughly 257 kilometers south-east of San Francisco. Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.