Last Updated on July 25, 2026 by Daniel Globe
Charles M. Schulz – Sonoma County Airport (STS), often called Santa Rosa Airport, is the main commercial airport for Sonoma County and California’s North Bay. It offers a smaller, easier-to-navigate alternative to larger Bay Area airports, but its airline lineup and nonstop routes change over time. The current carriers are Alaska Airlines, American Airlines, and Southwest Airlines.
Quick Answer
As of July 25, 2026, Alaska Airlines, American Airlines, and Southwest Airlines fly into Charles M. Schulz – Sonoma County Airport (STS) in Santa Rosa. All scheduled nonstop routes are domestic. Travelers can connect through airports such as Seattle, Portland, Phoenix, Dallas/Fort Worth, Denver, and Los Angeles for many additional U.S. and international destinations.
Key Takeaways
- The current commercial airlines at STS are Alaska Airlines, American Airlines, and Southwest Airlines.
- American serves Phoenix and Dallas/Fort Worth, while Alaska and Southwest cover several West Coast and western U.S. cities.
- STS does not currently advertise international nonstop service, but one-stop connections can take you abroad.
- Some routes are seasonal or operate only on selected days, so check your airline’s schedule for your exact travel dates.
- The airport recommends arriving about two hours before departure for check-in and security.
Which Airlines Fly Into Santa Rosa Airport?
The official STS passenger information lists three scheduled commercial carriers: Alaska Airlines, American Airlines, and Southwest Airlines. Sun Country Airlines and United Airlines have served Santa Rosa in the past, but they are not part of the current airline lineup.
Note: Airline schedules can change by season and day of the week. STS’s own route pages may show slightly different destinations while schedules are being updated, so confirm availability on the airport’s booking page and the airline’s website before making plans.
| Airline | Nonstop destinations shown by STS | Best connection points |
| Alaska Airlines | Burbank, Las Vegas, Los Angeles, Ontario, Orange County, Palm Springs, Portland, San Diego, and Seattle, depending on the season and schedule | Seattle, Portland, and Los Angeles |
| American Airlines | Phoenix and Dallas/Fort Worth | Phoenix and Dallas/Fort Worth |
| Southwest Airlines | Burbank, Denver, Las Vegas, and San Diego; Austin service is scheduled to begin October 3, 2026 | Denver, Las Vegas, and Austin after service begins |
Alaska Airlines: The Largest Route Selection at STS
Alaska Airlines provides the broadest selection of nonstop routes shown on the STS website. Depending on the season and travel date, destinations may include Burbank (BUR), Las Vegas (LAS), Los Angeles (LAX), Ontario (ONT), Orange County (SNA), Palm Springs (PSP), Portland (PDX), San Diego (SAN), and Seattle (SEA).
Seattle and Portland are especially useful for Pacific Northwest trips and Alaska Airlines connections. Southern California routes can also make STS convenient for business trips, family visits, theme-park vacations, cruises, and weekend travel without driving to San Francisco or Oakland.
Pro Tip: Check both nonstop and one-stop results. A nonstop ticket may save time, but a connection through Seattle, Portland, or Los Angeles can provide more departure times and onward destinations.
American Airlines: Phoenix and Dallas/Fort Worth Connections
American Airlines flies nonstop between Santa Rosa and Phoenix Sky Harbor International Airport (PHX) and Dallas Fort Worth International Airport (DFW), according to the airport’s airline information page.
These are domestic flights from STS, not international nonstops. However, both Phoenix and Dallas/Fort Worth are major American Airlines hubs, so passengers can book connecting itineraries to cities across the United States and to international destinations. Baggage rules, seat choices, meals, and entertainment vary by aircraft and fare, so review the details for the specific flight rather than assuming every service is included.
Southwest Airlines: Burbank, Denver, Las Vegas, and San Diego
| Southwest route | Status as of July 25, 2026 |
| Burbank (BUR) | Current route listed by STS |
| Denver (DEN) | Current route listed by STS |
| Las Vegas (LAS) | Current route listed by STS |
| San Diego (SAN) | Current route listed by STS |
| Austin (AUS) | Scheduled to begin October 3, 2026 |
Southwest Airlines now fills the leisure and western-connection role that the old article incorrectly assigned to Sun Country. Its STS routes serve Southern California, Las Vegas, Denver, and soon Austin. Denver is useful for onward connections across the Southwest network, while Burbank, Las Vegas, and San Diego work well for short leisure or business trips.
Southwest’s route map and flight frequency can change, so use the official Southwest Santa Rosa flight page to check your dates, fare rules, and whether a route is nonstop.
Do United or Sun Country Airlines Still Fly Into Santa Rosa?
United Airlines and Sun Country Airlines are not listed among the current scheduled commercial carriers at STS. Their sections in the older article reflected past service and should not be used for current booking decisions.
United has served Santa Rosa at different times in the airport’s history, including United Express service. Sun Country also previously operated leisure routes from STS. Airline service changes when carriers adjust fleets, demand, and seasonal schedules, so an old route announcement may remain online long after a flight ends.
Warning: Do not rely on an old travel article or press release to confirm a flight. Search your exact origin, destination, and date on the airline’s website before booking a hotel, rental car, or nonrefundable activity.
Flight Options and Destinations From Santa Rosa Airport
STS advertises nonstop access to 12 destinations in its current airport information, with Austin scheduled to join the network in October 2026. Several cities are served by more than one airline, and some flights operate seasonally or only on selected days.
Current and Seasonal Nonstop Destinations
- Pacific Northwest: Seattle and Portland
- Southern California: Burbank, Los Angeles, Ontario, Orange County, Palm Springs, and San Diego
- Mountain and desert destinations: Denver, Las Vegas, and Phoenix
- Texas: Dallas/Fort Worth, plus Austin beginning October 3, 2026
Can You Fly Internationally From STS?
STS does not currently list international nonstop flights. You can still begin an international trip in Santa Rosa by connecting through a hub such as Seattle, Los Angeles, Phoenix, Dallas/Fort Worth, or Denver. When comparing options, check the total travel time, connection length, baggage transfer rules, and whether all flights are on one ticket.
The main benefit of STS is not a huge route map. It is the ability to start a trip close to Sonoma County and connect through a larger hub when needed.
Travel Tips and Amenities at Santa Rosa Airport
Arrive About Two Hours Before Departure
The airport’s official check-in guidance recommends arriving 120 minutes before departure. A small terminal can be faster to navigate, but airline counters and boarding gates still close before departure. Allow extra time during holidays, weekends, and busy wine-country travel periods.
Check Your Flight Before Leaving
Review the airline app and the STS flight-status page before heading to the airport. Weather, aircraft changes, and crew scheduling can affect even a short regional flight.
Terminal Amenities
STS provides complimentary Wi-Fi, food and beverage options, charging access, ATMs, vending machines, pet relief areas, luggage carts, and Aira visual-assistance service for blind or low-vision passengers. The exact hours of restaurants and services may depend on the flight schedule.
Parking
The airport has short-term and long-term parking within walking distance of the terminal. As of July 1, 2026, STS says the farthest parking space is less than 300 yards from the terminal, and the first 30 minutes in the short-term lot are free. The airport also uses a license-plate-based parking system, so travelers should review the current instructions before arrival.
Staying Charged
Charging options are available in the terminal, but a portable battery can still help during delays or long connections. For help choosing one, see this guide to the best power bank for international travel.
Making the Most of Your Travel Experience From Sonoma County
Santa Rosa Airport is most useful when its nonstop routes match your trip or provide a simple connection through a larger hub. Alaska Airlines offers the widest range of destinations shown by STS, American Airlines connects Sonoma County with Phoenix and Dallas/Fort Worth, and Southwest adds several western routes with Austin service planned for October 2026.
Before booking, compare the full trip rather than the airfare alone. Consider driving time, parking, baggage fees, connection time, and the risk of separate tickets. Then verify the route directly with the airline because seasonal schedules can change.
Frequently Asked Questions
What airlines fly into Santa Rosa Airport?
As of July 25, 2026, Alaska Airlines, American Airlines, and Southwest Airlines provide scheduled commercial service at Charles M. Schulz – Sonoma County Airport (STS).
Which cities have nonstop flights to Santa Rosa?
Current or seasonal destinations shown by STS include Burbank, Dallas/Fort Worth, Denver, Las Vegas, Los Angeles, Ontario, Orange County, Palm Springs, Phoenix, Portland, San Diego, and Seattle. Austin service is scheduled to begin October 3, 2026.
Does Southwest Airlines fly to Santa Rosa?
Yes. Southwest currently lists service involving Burbank, Denver, Las Vegas, and San Diego. Austin is scheduled to be added in October 2026.
Do United Airlines or Sun Country Airlines fly to Santa Rosa?
Not as current scheduled commercial carriers. Both airlines have served STS in the past, but the airport’s present carrier list names Alaska Airlines, American Airlines, and Southwest Airlines.
Are there international flights from Santa Rosa Airport?
STS does not currently advertise international nonstop service. You can book connecting international itineraries through hubs such as Seattle, Los Angeles, Phoenix, Dallas/Fort Worth, or Denver.
Are any Santa Rosa routes seasonal?
Yes. Palm Springs is identified as seasonal on the STS booking page, and other routes may operate only on selected dates or days of the week. Always check the airline’s live schedule.
How early should I arrive at STS?
The airport recommends arriving 120 minutes before departure to complete airline check-in and security screening.
What is the airport code for Santa Rosa?
The airport code is STS. The full name is Charles M. Schulz – Sonoma County Airport, located at 2200 Airport Boulevard in Santa Rosa, California.
Sources
- Charles M. Schulz – Sonoma County Airport Passenger FAQ — current airlines and nonstop destinations
- STS Book a Flight — route list and seasonal Palm Springs service
- STS Check-In Information — recommended airport arrival time
- STS Terminal Amenities — Wi-Fi, food, accessibility, pet relief, and passenger services
- STS Parking — parking locations, free short-term period, and current entry system
- STS Airport History — airport naming and former airline service