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Cheap flights from Boston to San Francisco from $212

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Francisco departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Alaska Airlines Logo
8:01 am - 11:16 pmBOS-STS
18h 15m1 stop
Alaska Airlines Logo
2:30 pm - 7:53 amSTS-BOS
14h 23m1 stop
$324Alaska Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
Alaska Airlines Logo
8:01 am - 11:16 pmBOS-STS
18h 15m1 stop
Alaska Airlines Logo
4:13 pm - 4:00 pmSTS-BOS
20h 47m2 stops
$341Alaska Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
Alaska Airlines Logo
7:45 am - 2:27 pmBOS-STS
9h 42m1 stop
Alaska Airlines Logo
6:00 am - 12:27 amSTS-BOS
15h 27m2 stops
$344Alaska Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Alaska Airlines Logo
8:01 am - 11:16 pmBOS-STS
18h 15m1 stop
Alaska Airlines Logo
7:05 am - 7:53 amSTS-BOS
21h 48m1 stop
$348Alaska Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
Alaska Airlines Logo
7:45 am - 2:27 pmBOS-STS
9h 42m1 stop
Alaska Airlines Logo
2:28 pm - 12:27 amSTS-BOS
30h 59m1 stop
$358Alaska Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Alaska Airlines Logo
8:23 pm - 4:34 pmBOS-STS
23h 11m2 stops
Alaska Airlines Logo
7:03 am - 12:27 amSTS-BOS
14h 24m2 stops
$370Alaska Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Alaska Airlines Logo
6:55 pm - 8:48 amBOS-STS
16h 53m2 stops
Alaska Airlines Logo
7:03 am - 12:27 amSTS-BOS
14h 24m2 stops
$373Alaska Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Alaska Airlines Logo
5:08 pm - 11:50 pmBOS-STS
9h 42m1 stop
Alaska Airlines Logo
7:52 pm - 6:25 amSTS-BOS
31h 33m1 stop
$404Alaska Airlines
Find Deal
Fri, Sep 19 - Wed, Sep 24
American Airlines Logo
6:00 am - 3:47 pmBOS-STS
12h 47m2 stops
American Airlines Logo
4:17 pm - 8:26 amSTS-BOS
13h 09m2 stops
$539American Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
American Airlines Logo
5:55 am - 11:36 amBOS-STS
8h 41m1 stop
American Airlines Logo
12:59 pm - 11:48 pmSTS-BOS
7h 49m1 stop
$664American Airlines
Find Deal
Fri, Aug 15 - Sat, Aug 23

Alaska Airlines flights from Boston to Santa Rosa

Our best Alaska Airlines deals on Boston to Santa Rosa flight tickets
Alaska Airlines
Oct 7
BOS8:01 amBoston Logan Intl
18h 15m
1 stop
STS11:16 pmSanta Rosa Sonoma County
Oct 14
STS2:30 pmSanta Rosa Sonoma County
14h 23m
1 stop
BOS7:53 amBoston Logan Intl
$324
Find similar
Alaska Airlines
Oct 7
BOS8:01 amBoston Logan Intl
18h 15m
1 stop
STS11:16 pmSanta Rosa Sonoma County
Oct 14
STS4:13 pmSanta Rosa Sonoma County
20h 47m
2 stops
BOS4:00 pmBoston Logan Intl
$341
Find similar
Alaska Airlines
Sep 9
BOS7:45 amBoston Logan Intl
9h 42m
1 stop
STS2:27 pmSanta Rosa Sonoma County
Sep 16
STS6:00 amSanta Rosa Sonoma County
15h 27m
2 stops
BOS12:27 amBoston Logan Intl
$344
Find similar

American Airlines flights from Boston to Santa Rosa

Our best American Airlines deals on Boston to Santa Rosa flight tickets
American Airlines
Oct 7
BOS6:00 amBoston Logan Intl
12h 47m
2 stops
STS3:47 pmSanta Rosa Sonoma County
Oct 14
STS4:17 pmSanta Rosa Sonoma County
13h 09m
2 stops
BOS8:26 amBoston Logan Intl
$539
Find similar
American Airlines
Aug 15
BOS5:55 amBoston Logan Intl
8h 41m
1 stop
STS11:36 amSanta Rosa Sonoma County
Aug 23
STS12:59 pmSanta Rosa Sonoma County
7h 49m
1 stop
BOS11:48 pmBoston Logan Intl
$664
Find similar
American Airlines
Aug 15
BOS6:58 amBoston Logan Intl
11h 49m
2 stops
STS3:47 pmSanta Rosa Sonoma County
Aug 23
STS12:17 pmSanta Rosa Sonoma County
7h 59m
1 stop
BOS11:16 pmBoston Logan Intl
$669
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Santa Rosa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Boston to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 10/7

8:01 am-11:16 pm

1 stop18h 15m

Santa Rosa Sonoma County

Tue 10/14

2:30 pm-7:53 am

1 stop14h 23m

$324

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 10/7

8:01 am-11:16 pm

1 stop18h 15m

Santa Rosa Sonoma County

Tue 10/14

4:13 pm-4:00 pm

2 stops20h 47m

$341

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 9/9

7:45 am-2:27 pm

1 stop9h 42m

Santa Rosa Sonoma County

Tue 9/16

6:00 am-12:27 am

2 stops15h 27m

$344

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 10/7

8:01 am-11:16 pm

1 stop18h 15m

Santa Rosa Sonoma County

Tue 10/14

7:05 am-7:53 am

1 stop21h 48m

$348

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 9/9

7:45 am-2:27 pm

1 stop9h 42m

Santa Rosa Sonoma County

Tue 9/16

2:28 pm-12:27 am

1 stop30h 59m

$358

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 9/9

8:23 pm-4:34 pm

2 stops23h 11m

Santa Rosa Sonoma County

Tue 9/16

7:03 am-12:27 am

2 stops14h 24m

$370

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 9/9

6:55 pm-8:48 am

2 stops16h 53m

Santa Rosa Sonoma County

Tue 9/16

7:03 am-12:27 am

2 stops14h 24m

$373

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Fri 9/19

5:08 pm-11:50 pm

1 stop9h 42m

Santa Rosa Sonoma County

Wed 9/24

7:52 pm-6:25 am

1 stop31h 33m

$404

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Tue 10/7

6:00 am-3:47 pm

2 stops12h 47m

Santa Rosa Sonoma County

Tue 10/14

4:17 pm-8:26 am

2 stops13h 09m

$539

BostonSanta Rosa

BOS - STS

BOSSTS

Boston Logan Intl

Fri 8/15

5:55 am-11:36 am

1 stop8h 41m

Santa Rosa Sonoma County

Sat 8/23

12:59 pm-11:48 pm

1 stop7h 49m

$664

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Boston to Santa Rosa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Santa Rosa?

If you are unable to visit Santa Rosa during the month of January, then departing from Boston during the month May is also very affordable. Most momondo users find prices during this month for around $542.

What is the cheapest day to depart on your flight to Santa Rosa?

Our data shows that Tuesday is the least expensive day to fly to Santa Rosa. Tickets to fly out on this day can be as low as $542. On the other hand, Saturday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $816.

What is the cheapest time of day to depart on your flight to Santa Rosa?

Our data shows that the cheapest Boston to Santa Rosa flights are usually those with departure times in the evening. Our users have found flights to Santa Rosa in the evening for as low as $427. Flights in the afternoon are often more expensive with an average ticket price of $564.

Can stopping save me money on Boston to Santa Rosa flights?

You could potentially save up to 67% on your flight if you consider stops on a Boston to Santa Rosa flight.

How have Boston to Santa Rosa flight prices changed over time?

As of August 2025, prices for Boston to Santa Rosa flights are approximately 147% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Santa Rosa

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Santa Rosa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Santa Rosa (BOS to STS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Santa Rosa

Best Price Found

$212

Fastest flight time

8h 41m

Direct flights

None

Airports in Santa Rosa

1 airport
The best one-way flight to Santa Rosa from Boston in the past 72 hours is $212. The best round-trip flight deal from Boston to Santa Rosa found on momondo in the last 72 hours is $324.
The fastest flight from Boston to Santa Rosa takes 8h 41m
There are no direct flights from Boston to Santa Rosa. Popular non-direct route for this connection is Boston Logan Intl Airport - Santa Rosa Sonoma County Airport.
There is 1 airport near Santa Rosa: Santa Rosa Sonoma County (STS)
Search flight deals

  • How far is Boston Logan Intl to Santa Rosa Sonoma County by plane?

    The straight-line distance from Boston Logan Intl to Santa Rosa Sonoma County is 2687.7 mi. In terms of flight time, this usually takes a little over 8h 41m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Santa Rosa Sonoma County Airport?

    Prices for flights from Boston Logan Intl Airport to Santa Rosa Sonoma County Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Santa Rosa Sonoma County Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Santa Rosa Sonoma County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Santa Rosa Sonoma County Airport.

  • What documentation or ID do you need to fly to Santa Rosa Sonoma County Airport?

    The travel and health documents you'll need for your trip to Santa Rosa Sonoma County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santa Rosa Sonoma County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Santa Rosa?

Best airlines flying from Boston to Santa Rosa

Compare and see reviews for airlines that fly from Boston to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $364Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $432Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Fort Bragg
Mendocino
Ukiah
Little River
Point Arena

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Santa Rosa?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Santa Rosa. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Santa Rosa with flexible booking policies on momondo?

Yes. All flights to Santa Rosa from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Boston to Santa Rosa?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Santa Rosa.

I’m not ready to book a flight from Boston to Santa Rosa right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Santa Rosa now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Santa Rosa and let you know when they change.

An easier way to manage your Santa Rosa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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