--- title: "Santa Rosa (STS) to Boise (BOI) flights: who flies it" description: "Alaska Airlines flies nonstop from STS to BOI, about 8 flights a week, covering 489 miles. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/sts-boi" url: "https://2lnr.com/routes/sts-boi.md" date_modified: "2026-10-18T05:10:47Z" --- # Santa Rosa to Boise (STS-BOI): nonstop upgrade & award space Alaska Airlines flies the STS to BOI nonstop about 8 times a week. In the timetable below it flies as AS 3187 and AS 3389, scheduled at 1h 35m to 1h 40m for the 489 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See STS to BOI on the interactive map [Get started free](https://2lnr.com/login) 8 Flights a week, 4-week average 1h 35m to 1h 40m Scheduled flight time 489 mi Nonstop distance Free To get started ## Santa Rosa to Boise flight schedule Scheduled nonstop departures for STS to BOI starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Santa Rosa (STS) to Boise (BOI) | Date | Flight | Airline | Departs STS | Arrives BOI | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Sun, Nov 1 | AS 3389 | Alaska Airlines, Inc. | 12:22 | 15:02 | 1h 40m | [Embraer E175](https://2lnr.com/seatmaps/as/e175.md) | | Sun, Nov 1 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | | Mon, Nov 2 | AS 3389 | Alaska Airlines, Inc. | 12:22 | 15:02 | 1h 40m | Embraer E175 | | Mon, Nov 2 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | | Thu, Nov 5 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | | Fri, Nov 6 | AS 3389 | Alaska Airlines, Inc. | 12:22 | 15:02 | 1h 40m | Embraer E175 | | Fri, Nov 6 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | | Sat, Nov 7 | AS 3389 | Alaska Airlines, Inc. | 12:22 | 15:02 | 1h 40m | Embraer E175 | | Sat, Nov 7 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | | Sun, Nov 8 | AS 3389 | Alaska Airlines, Inc. | 12:22 | 15:02 | 1h 40m | Embraer E175 | | Sun, Nov 8 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | | Mon, Nov 9 | AS 3389 | Alaska Airlines, Inc. | 12:22 | 15:02 | 1h 40m | Embraer E175 | | Mon, Nov 9 | AS 3187 | Alaska Airlines, Inc. | 15:31 | 18:06 | 1h 35m | Embraer E175 | Showing all 13 scheduled STS to BOI departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every STS to BOI date on the interactive map ## Aircraft on the Santa Rosa to Boise nonstop Alaska Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/as/e175.md) on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on STS to BOI departures 2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Santa Rosa to Boise to see which departures have space, the next 14 days free on every product and the full horizon on Pro. Alaska Airlines award space was not open on the one Santa Rosa to Boise departure date from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026. ### See real availability Confirmed upgrade or award seats by date on the STS to BOI departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See STS to BOI on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Santa Rosa to Boise nonstop Carriers operating STS to BOI nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\ [The aircraft AS flies](https://2lnr.com/seatmaps/as.md) See STS to BOI on the interactive map → ## Frequently asked questions about STS to BOI **How long is the flight from Santa Rosa (STS) to Boise (BOI)?** Scheduled flight times from Santa Rosa (STS) to Boise (BOI) run from 1h 35m to 1h 40m across the departures in the schedule table on this page. The nonstop covers about 489 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from STS to BOI?** Alaska Airlines is currently the only airline flying STS to BOI nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines. **How many flights a week are there from STS to BOI?** About 8 nonstop flights a week run between Santa Rosa (STS) and Boise (BOI) in the current schedule, operated by Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from STS to BOI depart?** Scheduled STS to BOI nonstops in the next 7 days with service leave between 12:22 and 15:31, local time at Santa Rosa. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate STS to BOI nonstop?** In the schedule table on this page, STS to BOI nonstops fly as AS 3187 and AS 3389 on Alaska Airlines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on STS to BOI?** Open the STS to BOI route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [BOI to STS upgrade and award space](https://2lnr.com/routes/boi-sts.md). Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md). Looking beyond this route? See [every route from Santa Rosa (STS)](https://2lnr.com/routes/sts.md), or [every route from Boise (BOI)](https://2lnr.com/routes/boi.md). Nonstops to Boise (BOI) from other airports within 150 miles of Santa Rosa (STS): - [San Francisco (SFO) to Boise (BOI)](https://2lnr.com/routes/sfo-boi.md), 65 miles from STS - [Sacramento (SMF) to Boise (BOI)](https://2lnr.com/routes/smf-boi.md), 66 miles from STS - [San Jose (SJC) to Boise (BOI)](https://2lnr.com/routes/sjc-boi.md), 92 miles from STS Distances are great-circle between the airports, not driving distance. - [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) ## Never miss STS to BOI upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)