A vineyard with rows of grapevines, a dirt path, and a backdrop of rolling hills and trees.

$79 Cheap Flights from Boise (BOI) to Santa Rosa (STS)

View $79 flight on Tue, Nov 10, 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to Santa Rosa, CA (STS-Sonoma County)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Boise to Santa Rosa (BOI-STS)

Prices were available within the past 7 days and start at $79 for one-way flights and $155 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Oct 27 - Tue, Nov 3
BOI
Boise
STS
Santa Rosa
$155 Roundtrip, found 1 day ago
$155
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Oct 27 from Boise to Santa Rosa, returning Tue, Nov 3, priced at $155 found 1 day ago
American Airlines
Tue, Nov 10 - Fri, Nov 13
BOI
Boise
STS
Santa Rosa
$165 Roundtrip, found 5 days ago
$165
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Nov 10 from Boise to Santa Rosa, returning Fri, Nov 13, priced at $165 found 5 days ago
Southwest Airlines
Fri, Oct 30 - Wed, Nov 4
BOI
Boise
STS
Santa Rosa
$167 Roundtrip, found 1 hour ago
$167
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Fri, Oct 30 from Boise to Santa Rosa, returning Wed, Nov 4, priced at $167 found 1 hour ago
Southwest Airlines
Tue, Oct 13 - Sat, Oct 17
BOI
Boise
STS
Santa Rosa
$167 Roundtrip, found 3 days ago
$167
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Oct 13 from Boise to Santa Rosa, returning Sat, Oct 17, priced at $167 found 3 days ago
Delta
Sat, Oct 10 - Sat, Oct 17
BOI
Boise
STS
Santa Rosa
$172 Roundtrip, found 4 hours ago
$172
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Oct 10 from Boise to Santa Rosa, returning Sat, Oct 17, priced at $172 found 4 hours ago
Southwest Airlines
Tue, Oct 27 - Tue, Nov 3
BOI
Boise
STS
Santa Rosa
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Oct 27 from Boise to Santa Rosa, returning Tue, Nov 3, priced at $174 found 1 day ago
Southwest Airlines
Wed, Oct 7 - Fri, Oct 16
BOI
Boise
STS
Santa Rosa
$177 Roundtrip, found 11 hours ago
$177
Roundtrip
found 11 hours ago
Select Southwest Airlines flight, departing Wed, Oct 7 from Boise to Santa Rosa, returning Fri, Oct 16, priced at $177 found 11 hours ago
Southwest Airlines
Sun, Oct 25 - Fri, Oct 30
BOI
Boise
STS
Santa Rosa
$182 Roundtrip, found 1 day ago
$182
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sun, Oct 25 from Boise to Santa Rosa, returning Fri, Oct 30, priced at $182 found 1 day ago
Southwest Airlines
Fri, Oct 30 - Wed, Nov 4
BOI
Boise
STS
Santa Rosa
$187 Roundtrip, found 1 hour ago
$187
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Fri, Oct 30 from Boise to Santa Rosa, returning Wed, Nov 4, priced at $187 found 1 hour ago
Alaska Airlines
Sat, Oct 10 - Sat, Oct 17
BOI
Boise
STS
Santa Rosa
$212 Roundtrip, found 4 hours ago
$212
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Boise to Santa Rosa, returning Sat, Oct 17, priced at $212 found 4 hours ago

Alternative airports near Santa Rosa

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

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $365
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $365

What you need to know for your flight from Boise to Sonoma County

Boise (BOI) to Santa Rosa (STS) at a glance

Travel between Boise (BOI) and Santa Rosa (STS) with a selection of airlines offering various routes on this domestic short-haul journey. Discover affordable flights from Boise as you compare full-service carriers to find the perfect itinerary that matches your budget and schedule. Dive into the highlights of Santa Rosa's renowned sights and neighborhoods as you plan your visit. Check out the key details for flights from Boise Airport to Sonoma County Airport.

  • Fastest flight duration: around 3h 45m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 500 miles (805 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $135–$470, depending on seasonality and how far ahead you book

Flights from Boise Airport (BOI) to Sonoma County Airport (STS)

Based on the latest traveler bookings, here are the top airlines flying from Boise to Santa Rosa, often favored for their one-stop services. Popular layover locations include Seattle-Tacoma International Airport (SEA, about 1 hour 30 minutes), Portland International Airport (PDX, around 1 hour), and Hollywood Burbank Airport (BUR, roughly 35 minutes). This flexibility allows you to compare prices, total travel times, and cabin classes to create the best itinerary for your journey.

  • Alaska Airlines: This comprehensive airline provides one-stop travel options, with one-way ticket prices generally falling between $135 and $470. Alaska Airlines is responsible for nearly 98% of departures along this route, featuring an in-flight duration of 3 hours and 45 minutes, and a total travel time of approximately 4 hours and 30 minutes, including layover time.

Alternative routes from Boise (BOI) to Santa Rosa (STS)

  • Boise to Novato (BOI-NOT): Gnoss Field Airport (NOT) lies approximately 29 miles from Sonoma County Airport (STS).
  • Boise to Napa (BOI-APC): Napa Valley Airport (APC) is situated roughly 35 miles away from Sonoma County Airport (STS).

How to find the best prices for flights from Boise (BOI) to Santa Rosa (STS)

Getting some of the best deals on flights from Boise to Santa Rosa is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Morning departures (5 a.m. to 12 p.m.) tend to be more affordable and are the most popular flight times. Additionally, flying on Thursday generally offers lower prices, while Monday is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Santa Rosa hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sonoma County Airport from Boise Airport

Santa Rosa welcomes travelers from Boise with a range of transport options based on price, convenience, and proximity. Santa Rosa city center is approximately a 10-minute drive (covering about 9 miles) from Sonoma County Airport, depending on traffic. Here's how to reach Santa Rosa efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Santa Rosa, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Sonoma County Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sonoma County Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Sonoma County Airport, Santa Rosa Station, a train station, is located about 7.6 miles away by car, providing convenient access for travelers heading into the city.

Frequently asked questions

How much does a flight from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) cost?
You can find cheap one-way flights from $79 and cheap return flights from $155 Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) with Expedia. One-way flights generally range between $230 and $751, and roundtrip flights usually range from $331 to $1221. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
The cheapest month to fly from BOI to STS is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
Enter BOI to STS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
Southwest Airlines is one of the cheapest airlines offering connecting flights from Boise, ID (BOI) to Santa Rosa, CA (STS) with a layover in Sacramento Intl. (SMF), starting from around $226. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
To find a cheap flight from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
The earliest flight from Boise (BOI-Quad City Intl.) to Santa Rosa (STS-Sonoma County) typically departs at 5:00 AM, with options from United and Alaska Airlines. This seasonal service is active in May, allowing you to maximize your time in beautiful Santa Rosa. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
For flights from Boise (BOI) to Santa Rosa (STS), the most popular departure times are in the early morning, from 6am to 9am. About 35% of passengers choose this time window. Many major carriers, including Alaska Airlines, American Airlines and Alaska Airlines, offer flights during this window. This timing is favored because it lets you make the most of your day in Santa Rosa.
How long does it take to fly from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
Flights from BOI to STS with one stop typically take around 6 hours 50 minutes, covering approximately 490 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
First class seats are offered on the BOI to STS route with American Airlines.
How do I earn miles on a Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) flight with Expedia?
It's easy to earn miles on a Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Santa Rosa from BOI (BOI)?
From BOI (BOI), you can fly into Sonoma County (STS) to reach Santa Rosa. Some flights may connect through major hubs like San Francisco Intl. (SFO), Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN) before reaching Santa Rosa. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) at the last minute?
Typically, booking a last minute flight from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) flight and hotel package?
Securing a Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County)?
If you booked your Boise, ID (BOI) to Santa Rosa, CA (STS-Sonoma County) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Boise
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines
Roundtrip price
$154
Distance
489 mi

Book with confidence

Boise to Santa Rosa Flights

The cheapest times to fly from Boise to Santa Rosa

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 Boise to Santa Rosa are during the month of October. You can find some of the cheapest flights from Boise to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Santa Rosa

Sunday is one of the best days to book for cheap flights from Boise to Santa Rosa: 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 Boise to Santa Rosa

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 Boise to Santa Rosa in 2026. You can also book with separate airlines for your outbound and return journeys, from $79 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 Boise to Santa Rosa 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 Boise to Santa Rosa 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.

 

Boise to Santa Rosa Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia