--- title: "Santa Rosa (STS) airport: direct flights & routes" description: "Flights to and from Santa Rosa (STS), Sonoma County Airport: 13 nonstop destinations, including Seattle, Phoenix and Portland. See who flies each one on 2LNR." canonical: "https://2lnr.com/routes/sts" url: "https://2lnr.com/routes/sts.md" date_modified: "2026-10-23T14:17:50Z" --- # Direct flights from Santa Rosa (STS) From Sonoma County Airport (STS), 3 airlines fly nonstop to 13 destinations, led by Alaska Airlines, American Airlines, and Delta Air Lines. The busiest nonstops from Santa Rosa go to Seattle, Phoenix, and Portland. 2LNR monitors confirmed space on the Santa Rosa routes flown by Alaska Airlines, American Airlines, and Delta Air Lines so you can act while it's still available. Route data refreshed October 23, 2026. Routes and carriers reflect the schedule data behind 2LNR's route map. Updated October 23, 2026. Explore Santa Rosa routes on the interactive map [Get started free](https://2lnr.com/login) 13 Nonstop destinations 3 Airlines serving STS Free To get started ## About Sonoma County Airport (STS) Sonoma County Airport (STS) is the airport serving Santa Rosa, United States. Its ICAO code is KSTS. Departure and arrival times at STS are local to the America/Los\_Angeles time zone. Every one of its 13 nonstop destinations is inside United States. ## Confirmed upgrade & award space on Santa Rosa routes 2LNR tracks confirmed upgrade and award space on Alaska Airlines, American Airlines, and Delta Air Lines, segment by segment and date by date. Pick any Santa Rosa destination below to open a calendar of departures, the next 14 days free on every product and the full horizon on Pro. ### See real availability Confirmed upgrade or award seats by date on the STS routes 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch a tracked Santa Rosa route on Pro and 2LNR notifies you when space appears. ### Plan on the map Explore every STS nonstop on the interactive route map, with connections and route statistics. ## All nonstop destinations from Santa Rosa (STS) These are the city pairs behind flights to and from Santa Rosa: 13 nonstop destinations with active service at Sonoma County Airport. Each route links to its own page, with confirmed upgrade or award space by date where 2LNR tracks the carrier. - [Santa Rosa to Boise flights (STS-BOI)](https://2lnr.com/routes/sts-boi.md): Alaska Airlines\ [Return: Boise to Santa Rosa](https://2lnr.com/routes/boi-sts.md) - [Santa Rosa to Burbank flights (STS-BUR)](https://2lnr.com/routes/sts-bur.md): Alaska Airlines\ [Return: Burbank to Santa Rosa](https://2lnr.com/routes/bur-sts.md) - [Santa Rosa to Dallas flights (STS-DFW)](https://2lnr.com/routes/sts-dfw.md): American Airlines\ [Return: Dallas to Santa Rosa](https://2lnr.com/routes/dfw-sts.md) - [Santa Rosa to Las Vegas flights (STS-LAS)](https://2lnr.com/routes/sts-las.md): Alaska Airlines\ [Return: Las Vegas to Santa Rosa](https://2lnr.com/routes/las-sts.md) - [Santa Rosa to Los Angeles flights (STS-LAX)](https://2lnr.com/routes/sts-lax.md): Alaska Airlines\ [Return: Los Angeles to Santa Rosa](https://2lnr.com/routes/lax-sts.md) - [Santa Rosa to Ontario flights (STS-ONT)](https://2lnr.com/routes/sts-ont.md): Alaska Airlines\ [Return: Ontario to Santa Rosa](https://2lnr.com/routes/ont-sts.md) - [Santa Rosa to Palm Springs flights (STS-PSP)](https://2lnr.com/routes/sts-psp.md): Alaska Airlines\ [Return: Palm Springs to Santa Rosa](https://2lnr.com/routes/psp-sts.md) - [Santa Rosa to Phoenix flights (STS-PHX)](https://2lnr.com/routes/sts-phx.md): Alaska Airlines and American Airlines\ [Return: Phoenix to Santa Rosa](https://2lnr.com/routes/phx-sts.md) - [Santa Rosa to Portland flights (STS-PDX)](https://2lnr.com/routes/sts-pdx.md): Alaska Airlines\ [Return: Portland to Santa Rosa](https://2lnr.com/routes/pdx-sts.md) - [Santa Rosa to Salt Lake City flights (STS-SLC)](https://2lnr.com/routes/sts-slc.md): Alaska Airlines and Delta Air Lines\ [Return: Salt Lake City to Santa Rosa](https://2lnr.com/routes/slc-sts.md) - [Santa Rosa to San Diego flights (STS-SAN)](https://2lnr.com/routes/sts-san.md): Alaska Airlines\ [Return: San Diego to Santa Rosa](https://2lnr.com/routes/san-sts.md) - [Santa Rosa to Santa Ana flights (STS-SNA)](https://2lnr.com/routes/sts-sna.md): Alaska Airlines\ [Return: Santa Ana to Santa Rosa](https://2lnr.com/routes/sna-sts.md) - [Santa Rosa to Seattle flights (STS-SEA)](https://2lnr.com/routes/sts-sea.md): Alaska Airlines\ [Return: Seattle to Santa Rosa](https://2lnr.com/routes/sea-sts.md) Explore STS routes on the interactive map → ## Nonstop flights to Santa Rosa (STS) 13 airports have nonstops to Sonoma County Airport in 2LNR's schedule data. Here they are, with the airlines that fly each route. - [Boise to Santa Rosa flights (BOI-STS)](https://2lnr.com/routes/boi-sts.md): Alaska Airlines - [Burbank to Santa Rosa flights (BUR-STS)](https://2lnr.com/routes/bur-sts.md): Alaska Airlines - [Dallas to Santa Rosa flights (DFW-STS)](https://2lnr.com/routes/dfw-sts.md): American Airlines - [Las Vegas to Santa Rosa flights (LAS-STS)](https://2lnr.com/routes/las-sts.md): Alaska Airlines - [Los Angeles to Santa Rosa flights (LAX-STS)](https://2lnr.com/routes/lax-sts.md): Alaska Airlines - [Ontario to Santa Rosa flights (ONT-STS)](https://2lnr.com/routes/ont-sts.md): Alaska Airlines - [Palm Springs to Santa Rosa flights (PSP-STS)](https://2lnr.com/routes/psp-sts.md): Alaska Airlines - [Phoenix to Santa Rosa flights (PHX-STS)](https://2lnr.com/routes/phx-sts.md): Alaska Airlines and American Airlines - [Portland to Santa Rosa flights (PDX-STS)](https://2lnr.com/routes/pdx-sts.md): Alaska Airlines - [Salt Lake City to Santa Rosa flights (SLC-STS)](https://2lnr.com/routes/slc-sts.md): Alaska Airlines and Delta Air Lines - [San Diego to Santa Rosa flights (SAN-STS)](https://2lnr.com/routes/san-sts.md): Alaska Airlines - [Santa Ana to Santa Rosa flights (SNA-STS)](https://2lnr.com/routes/sna-sts.md): Alaska Airlines - [Seattle to Santa Rosa flights (SEA-STS)](https://2lnr.com/routes/sea-sts.md): Alaska Airlines ## Airlines that fly out of Santa Rosa (STS) The carriers with nonstop service from Sonoma County Airport, ordered by how many destinations each one reaches. Each links to that airline's full route map. - [Alaska Airlines (AS)](https://2lnr.com/routes/airlines/as.md) - [American Airlines (AA)](https://2lnr.com/routes/airlines/aa.md) - [Delta Air Lines (DL)](https://2lnr.com/routes/airlines/dl.md) ## Alternative airports near Santa Rosa (STS) Nearby airports with nonstop service of their own, closest first. Distances are great-circle between the two airports' coordinates, not driving time, so check the ground connection before you treat one as a substitute. - [Napa (APC)](https://2lnr.com/routes/apc.md) (34 miles, 3 nonstop destinations) - [Concord (CCR)](https://2lnr.com/routes/ccr.md) (53 miles, 3 nonstop destinations) - [Oakland (OAK)](https://2lnr.com/routes/oak.md) (63 miles, 18 nonstop destinations) - [San Francisco (SFO)](https://2lnr.com/routes/sfo.md) (65 miles, 152 nonstop destinations) - [Sacramento (SMF)](https://2lnr.com/routes/smf.md) (66 miles, 35 nonstop destinations) - [San Jose (SJC)](https://2lnr.com/routes/sjc.md) (92 miles, 25 nonstop destinations) [United States flights by airport](https://2lnr.com/routes/to/united-states.md) - [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Frequently asked questions about Santa Rosa (STS) **How many nonstop destinations does Sonoma County Airport (STS) serve?** Sonoma County Airport has active nonstop service to 13 destinations in 2LNR's schedule data. The busiest markets from STS are Seattle, Phoenix, and Portland. The full list, with who flies each route and, where 2LNR tracks the carrier, upgrade and award space by date, is on this page. **Which airlines fly out of Santa Rosa (STS)?** The carriers with nonstop service from Sonoma County Airport are listed in full on this page, each linked to its own route map. Alaska Airlines, American Airlines, and Delta Air Lines run the most routes from Santa Rosa, in that order. In 2LNR's schedule data that is 3 airlines in total. **How many airlines fly out of STS?** 2LNR's schedule data currently shows 3 airlines with at least one nonstop route from Santa Rosa (STS). That figure counts the carrier operating the flight rather than every carrier that sells a seat on it, so a codeshare marketed by a partner is not counted twice, and it moves with the season. **How do I check upgrade or award availability from STS?** Pick any destination on this page, such as Seattle, to open a calendar of STS departures with confirmed upgrade and award space on Alaska Airlines, American Airlines, and Delta Air Lines by date, the next 14 days free on every product and the full horizon on Pro. On Pro you can also set an alert so 2LNR notifies you when space opens. **Does 2LNR track flights from STS?** Yes. Every nonstop route from Sonoma County Airport in 2LNR's schedule data is listed, 13 destinations in total, and on the routes flown by Alaska Airlines, American Airlines, and Delta Air Lines what is shown is confirmed availability rather than a forecast, the next 14 days free on every product and the full horizon on Pro. **Where can you fly nonstop from Santa Rosa (STS)?** From Santa Rosa (STS), 2LNR's schedule data shows nonstop flights to Boise, Burbank, Dallas, Las Vegas, Los Angeles, Ontario, Palm Springs, Phoenix, Portland, Salt Lake City, San Diego, Santa Ana, and Seattle. This page lists every one, with the airlines that fly it. ## Never miss STS upgrade or award space See what's open by date on these routes, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)