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Cheap flights from Boston to San Francisco from $142

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 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:51 am - 7:50 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
14h 59m1 stop San Diego
Alaska Airlines Logo
6:16 am - 5:21 amSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
20h 05m1 stop San Diego
$283Alaska Airlines
Sat, Oct 3 - Sat, Oct 10
Alaska Airlines Logo
7:51 am - 7:50 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
14h 59m1 stop San Diego
Alaska Airlines Logo
2:00 pm - 5:21 amSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
12h 21m2 stops Las Vegas Harry Reid Intl San Diego
$338Alaska Airlines
Sat, Oct 3 - Sat, Oct 10
Alaska Airlines Logo
7:51 am - 7:50 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
14h 59m1 stop San Diego
Alaska Airlines Logo
6:16 am - 5:21 amSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
20h 05m1 stop San Diego
$343Alaska Airlines
Sat, Oct 3 - Sat, Oct 10
Alaska Airlines Logo
7:03 am - 9:56 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
17h 53m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:16 am - 5:21 amSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
20h 05m1 stop San Diego
$348Alaska Airlines
Sat, Oct 17 - Tue, Oct 20
American Airlines Logo
5:17 am - 12:13 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
9h 56m1 stop Dallas/Fort Worth
American Airlines Logo
12:44 pm - 11:58 pmSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
8h 14m1 stop Dallas/Fort Worth
$413American Airlines
Sat, Oct 10 - Sat, Nov 7
American Airlines Logo
5:17 am - 12:13 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
9h 56m1 stop Dallas/Fort Worth
American Airlines Logo
1:02 pm - 11:43 pmSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
7h 41m1 stop Phoenix Sky Harbor Intl
$413American Airlines
Sat, Oct 17 - Tue, Oct 20
Southwest Logo
9:40 am - 7:55 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
13h 15m2 stops Chicago Midway San Diego
Southwest Logo
6:35 am - 5:50 pmSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
8h 15m1 stop San Diego
$418Southwest
Sat, Oct 17 - Tue, Oct 20
Southwest Logo
10:05 am - 9:30 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
14h 25m2 stops Chicago Midway San Diego
Southwest Logo
6:00 am - 9:30 pmSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
12h 30m2 stops San Diego Baltimore/Washington
$423Southwest
Wed, Sep 9 - Tue, Sep 15
Delta Logo
6:50 am - 4:05 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
12h 15m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
11:21 am - 1:20 amSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
10h 59m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$423Delta
Sat, Oct 31 - Sat, Nov 7
American Airlines Logo
5:17 am - 12:13 pmBOS  Boston Logan Intl-STS Santa Rosa Sonoma County
9h 56m1 stop Dallas/Fort Worth
American Airlines Logo
7:25 am - 8:51 pmSTS  Santa Rosa Sonoma County-BOS Boston Logan Intl
10h 26m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$473American Airlines
Sat, Oct 10 - Sat, Nov 7

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Alaska Airlines flights from Boston to Santa Rosa

Our best Alaska Airlines deals on Boston to Santa Rosa flight tickets
Alaska Airlines
Oct 3
BOS7:51 amBoston Logan Intl
14h 59m
1 stop
STS7:50 pmSanta Rosa Sonoma County
Oct 10
STS6:16 amSanta Rosa Sonoma County
20h 05m
1 stop
BOS5:21 amBoston Logan Intl
$283
Alaska Airlines
Oct 3
BOS7:51 amBoston Logan Intl
14h 59m
1 stop
STS7:50 pmSanta Rosa Sonoma County
Oct 10
STS2:00 pmSanta Rosa Sonoma County
12h 21m
2 stops
BOS5:21 amBoston Logan Intl
$338
Alaska Airlines
Oct 3
BOS7:51 amBoston Logan Intl
14h 59m
1 stop
STS7:50 pmSanta Rosa Sonoma County
Oct 10
STS6:16 amSanta Rosa Sonoma County
20h 05m
1 stop
BOS5:21 amBoston Logan Intl
$343

American Airlines flights from Boston to Santa Rosa

Our best American Airlines deals on Boston to Santa Rosa flight tickets
American Airlines
Aug 12
BOS5:51 amBoston Logan Intl
9h 18m
1 stop
STS12:09 pmSanta Rosa Sonoma County
Aug 18
STS4:08 pmSanta Rosa Sonoma County
14h 29m
2 stops
BOS9:37 amBoston Logan Intl
$682
American Airlines
Aug 12
BOS7:10 amBoston Logan Intl
11h 27m
2 stops
STS3:37 pmSanta Rosa Sonoma County
Aug 18
STS4:08 pmSanta Rosa Sonoma County
14h 29m
2 stops
BOS9:37 amBoston Logan Intl
$687
American Airlines
Aug 12
BOS5:51 amBoston Logan Intl
9h 18m
1 stop
STS12:09 pmSanta Rosa Sonoma County
Aug 19
STS4:08 pmSanta Rosa Sonoma County
14h 29m
2 stops
BOS9:37 amBoston Logan Intl
$700

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 6, 2026.
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

Cheapest round-trip

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/3

7:51 am-7:50 pm

1 stop14h 59m

Santa Rosa Sonoma County

Sat 10/10

6:16 am-5:21 am

1 stop20h 05m

$283

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/3

7:51 am-7:50 pm

1 stop14h 59m

Santa Rosa Sonoma County

Sat 10/10

2:00 pm-5:21 am

2 stops12h 21m

$338

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/3

7:51 am-7:50 pm

1 stop14h 59m

Santa Rosa Sonoma County

Sat 10/10

6:16 am-5:21 am

1 stop20h 05m

$343

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/17

7:03 am-9:56 pm

1 stop17h 53m

Santa Rosa Sonoma County

Tue 10/20

6:16 am-5:21 am

1 stop20h 05m

$348

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/10

5:17 am-12:13 pm

1 stop9h 56m

Santa Rosa Sonoma County

Sat 11/7

12:44 pm-11:58 pm

1 stop8h 14m

$413
Quickest round-trip

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/17

5:17 am-12:13 pm

1 stop9h 56m

Santa Rosa Sonoma County

Tue 10/20

1:02 pm-11:43 pm

1 stop7h 41m

$413

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/17

9:40 am-7:55 pm

2 stops13h 15m

Santa Rosa Sonoma County

Tue 10/20

6:35 am-5:50 pm

1 stop8h 15m

$418

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Wed 9/9

10:05 am-9:30 pm

2 stops14h 25m

Santa Rosa Sonoma County

Tue 9/15

6:00 am-9:30 pm

2 stops12h 30m

$423

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/31

6:50 am-4:05 pm

2 stops12h 15m

Santa Rosa Sonoma County

Sat 11/7

11:21 am-1:20 am

2 stops10h 59m

$423

BostonSanta Rosa

BOS Boston Logan Intl - STS Santa Rosa Sonoma County

BOSSTS

Boston Logan Intl

Sat 10/10

5:17 am-12:13 pm

1 stop9h 56m

Santa Rosa Sonoma County

Sat 11/7

7:25 am-8:51 pm

2 stops10h 26m

$473

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 November is also very affordable. Most momondo users find prices during this month for around $433.

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

Fastest flight time

7h 50m

Direct flights

None
The fastest flight from Boston to Santa Rosa takes 7h 50m
There are no direct flights from Boston to Santa Rosa. There are no popular flight routes from Boston to Santa Rosa.
Search flight deals

Frequently asked questions about flying from Boston to Santa Rosa

  • 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 7h 50m.

  • 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 $433Free CancellationRating
7.9
12,772 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $439Free CancellationRating
7.1
11,866 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
Ukiah
Mendocino
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.

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