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Cheap flights from Santa Rosa to San Diego from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Rosa to San Diego departing on 9/30. 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 Santa Rosa to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:05 am - 8:50 amSTS  Santa Rosa Sonoma County-SAN San Diego
1h 45mnonstop
Southwest Logo
7:05 am - 11:20 amSAN  San Diego-STS Santa Rosa Sonoma County
4h 15m1 stop Las Vegas Harry Reid Intl
$147Southwest
Sun, Sep 20 - Wed, Sep 23
Southwest Logo
1:40 pm - 6:40 pmSTS  Santa Rosa Sonoma County-SAN San Diego
5h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
8:50 pm - 10:40 pmSAN  San Diego-STS Santa Rosa Sonoma County
1h 50mnonstop
$147Southwest
Wed, Sep 2 - Fri, Sep 4
Southwest Logo
6:05 am - 7:45 amSTS  Santa Rosa Sonoma County-SAN San Diego
1h 40mnonstop
Southwest Logo
9:40 am - 11:30 amSAN  San Diego-STS Santa Rosa Sonoma County
1h 50mnonstop
$147Southwest
Thu, Aug 27 - Sun, Aug 30
Alaska Airlines Logo
6:47 pm - 8:36 pmSTS  Santa Rosa Sonoma County-SAN San Diego
1h 49mnonstop
Alaska Airlines Logo
9:59 pm - 11:54 pmSAN  San Diego-STS Santa Rosa Sonoma County
1h 55mnonstop
$149Alaska Airlines
Wed, Aug 19 - Thu, Aug 27
Alaska Airlines Logo
6:47 pm - 8:36 pmSTS  Santa Rosa Sonoma County-SAN San Diego
1h 49mnonstop
Alaska Airlines Logo
9:59 pm - 11:54 pmSAN  San Diego-STS Santa Rosa Sonoma County
1h 55mnonstop
$149Alaska Airlines
Wed, Aug 19 - Tue, Aug 25
Alaska Airlines Logo
5:56 pm - 7:35 pmSTS  Santa Rosa Sonoma County-SAN San Diego
1h 39mnonstop
Alaska Airlines Logo
7:57 am - 9:54 amSAN  San Diego-STS Santa Rosa Sonoma County
1h 57mnonstop
$149Alaska Airlines
Mon, Aug 17 - Tue, Aug 25
American Airlines Logo
1:08 pm - 6:16 pmSTS  Santa Rosa Sonoma County-SAN San Diego
5h 08m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
10:11 am - 3:50 pmSAN  San Diego-STS Santa Rosa Sonoma County
5h 39m1 stop Phoenix Sky Harbor Intl
$159American Airlines
Sat, Sep 19 - Mon, Sep 21
American Airlines Logo
12:58 pm - 6:18 pmSTS  Santa Rosa Sonoma County-SAN San Diego
5h 20m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
9:46 am - 3:50 pmSAN  San Diego-STS Santa Rosa Sonoma County
6h 04m1 stop Phoenix Sky Harbor Intl
$159American Airlines
Sat, Sep 5 - Sat, Sep 12
Delta Logo
11:21 am - 6:29 pmSTS  Santa Rosa Sonoma County-SAN San Diego
7h 08m1 stop Salt Lake City
Delta Logo
9:42 am - 4:05 pmSAN  San Diego-STS Santa Rosa Sonoma County
6h 23m1 stop Salt Lake City
$177Delta
Wed, Oct 21 - Tue, Oct 27
Delta Logo
11:29 am - 3:55 pmSTS  Santa Rosa Sonoma County-SAN San Diego
4h 26m1 stop Salt Lake City
Delta Logo
9:43 am - 4:06 pmSAN  San Diego-STS Santa Rosa Sonoma County
6h 23m1 stop Salt Lake City
$177Delta
Tue, Nov 10 - Tue, Nov 17

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Alaska Airlines flights from Santa Rosa to San Diego

Our best Alaska Airlines deals on Santa Rosa to San Diego flight tickets
Alaska Airlines
Aug 26
STS6:13 amSanta Rosa Sonoma County
1h 52m
SAN8:05 amSan Diego
Sep 2
SAN9:59 pmSan Diego
1h 55m
STS11:54 pmSanta Rosa Sonoma County
$117
Alaska Airlines
Aug 21
STS6:47 pmSanta Rosa Sonoma County
1h 49m
SAN8:36 pmSan Diego
Aug 26
SAN9:59 pmSan Diego
1h 55m
STS11:54 pmSanta Rosa Sonoma County
$149
Alaska Airlines
Oct 17
STS4:35 pmSanta Rosa Sonoma County
1h 46m
SAN6:21 pmSan Diego
Oct 29
SAN8:01 amSan Diego
1h 58m
STS9:59 amSanta Rosa Sonoma County
$157

American Airlines flights from Santa Rosa to San Diego

Our best American Airlines deals on Santa Rosa to San Diego flight tickets
American Airlines
Aug 29
STS12:58 pmSanta Rosa Sonoma County
5h 20m
1 stop
SAN6:18 pmSan Diego
Aug 31
SAN9:40 amSan Diego
5h 57m
1 stop
STS3:37 pmSanta Rosa Sonoma County
$159
American Airlines
Aug 15
STS12:58 pmSanta Rosa Sonoma County
5h 20m
1 stop
SAN6:18 pmSan Diego
Aug 17
SAN9:40 amSan Diego
5h 57m
1 stop
STS3:37 pmSanta Rosa Sonoma County
$201
American Airlines
Aug 14
STS12:58 pmSanta Rosa Sonoma County
5h 20m
1 stop
SAN6:18 pmSan Diego
Aug 16
SAN6:25 amSan Diego
6h 03m
1 stop
STS12:28 pmSanta Rosa Sonoma County
$226

momondo Fare Finder

 
Customize your flight search to find flights from Santa Rosa to San Diego 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 5, 2026.
Use the filters below to find and compare flights from Santa Rosa to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Sun 9/20

7:05 am-8:50 am

Nonstop1h 45m

San Diego

Wed 9/23

7:05 am-11:20 am

1 stop4h 15m

$147

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Wed 9/2

1:40 pm-6:40 pm

1 stop5h 00m

San Diego

Fri 9/4

8:50 pm-10:40 pm

Nonstop1h 50m

$147
Quickest round-trip

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Thu 8/27

6:05 am-7:45 am

Nonstop1h 40m

San Diego

Sun 8/30

9:40 am-11:30 am

Nonstop1h 50m

$147

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Wed 8/19

6:47 pm-8:36 pm

Nonstop1h 49m

San Diego

Thu 8/27

9:59 pm-11:54 pm

Nonstop1h 55m

$149

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Wed 8/19

6:47 pm-8:36 pm

Nonstop1h 49m

San Diego

Tue 8/25

9:59 pm-11:54 pm

Nonstop1h 55m

$149

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Mon 8/17

5:56 pm-7:35 pm

Nonstop1h 39m

San Diego

Tue 8/25

7:57 am-9:54 am

Nonstop1h 57m

$149

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Sat 9/19

1:08 pm-6:16 pm

1 stop5h 08m

San Diego

Mon 9/21

10:11 am-3:50 pm

1 stop5h 39m

$159

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Sat 9/5

12:58 pm-6:18 pm

1 stop5h 20m

San Diego

Sat 9/12

9:46 am-3:50 pm

1 stop6h 04m

$159

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Wed 10/21

11:21 am-6:29 pm

1 stop7h 08m

San Diego

Tue 10/27

9:42 am-4:05 pm

1 stop6h 23m

$177

Santa RosaSan Diego

STS Santa Rosa Sonoma County - SAN San Diego

STSSAN

Santa Rosa Sonoma County

Tue 11/10

11:29 am-3:55 pm

1 stop4h 26m

San Diego

Tue 11/17

9:43 am-4:06 pm

1 stop6h 23m

$177

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 Diego from

How to get the cheapest flight ticket from Santa Rosa to San Diego

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 typical price of a round-trip flight between Santa Rosa and San Diego?

Prices are currently low for flights on this route.

Typical prices usually range from $200 to $302.
The lowest price recently found on this route was $117.

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of September, then departing from Santa Rosa during the month January is also very affordable. Most momondo users find prices during this month for around $245.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Santa Rosa to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $213. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $266. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $208. Flights in the afternoon are often more expensive with an average ticket price of $266.

What is the cheapest Santa Rosa Sonoma County to San Diego flight route?

Fly from Santa Rosa Sonoma County to San Diego for the best Santa Rosa Sonoma County - San Diego flight prices

How far in advance should I book a flight from Santa Rosa to San Diego?

You are more likely to see cheaper flights to San Diego from Santa Rosa when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $263 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Santa Rosa for as low as $221 on momondo.

What cabin class options are available on Santa Rosa to San Diego flights?

There are 4 cabin classes available to choose from on Santa Rosa to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Santa Rosa to San Diego flight prices changed over time?

As of August 2026, prices for Santa Rosa to San Diego flights are approximately 29% cheaper when compared to flights at the same time last year.

When to book flights from Santa Rosa to San Diego

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

Cheap Santa Rosa to San Diego (STS to SAN) flight deals and tips

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

Best Price Found

$115

Fastest flight time

1h 35m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Santa Rosa in the past 72 hours is $115. The best round-trip flight deal from Santa Rosa to San Diego found on momondo in the last 72 hours is $201.
The fastest flight from Santa Rosa to San Diego takes 1h 35m
Direct flights go from Santa Rosa to San Diego every day.
There is 1 airport in San Diego. From Santa Rosa there are direct flights to San Diego (SAN).
Search flight deals

Frequently asked questions about flying from Santa Rosa to San Diego

  • How far is Santa Rosa Sonoma County to San Diego by plane?

    Santa Rosa Sonoma County and San Diego are 503.4 mi apart from one another. In terms of flight time, this usually takes a little over 1h 35m.

  • When did momondo last update prices for flights from Santa Rosa Sonoma County Airport to San Diego Airport?

    Prices for flights from Santa Rosa Sonoma County Airport to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Santa Rosa Sonoma County Airport to San Diego Airport?

  • How old do you have to be to fly from Santa Rosa Sonoma County Airport to San Diego Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Santa Rosa Sonoma County Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Santa Rosa to San Diego?

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

Best airlines flying from Santa Rosa to San Diego

Compare and see reviews for airlines that fly from Santa Rosa to San Diego with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $127Free CancellationRating
8.0
4,220 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $139Free CancellationRating
7.9
12,767 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $157Free CancellationRating
7.8
2,819 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $182Free CancellationRating
7.1
11,855 reviews
Search American Airlines flights

  • Southwest Flights From Santa Rosa to San Diego

    Across 3 Southwest flights from Santa Rosa to San Diego this week, the average price was $236, with the best Southwest deals starting from $127 round-trip. 4,220 users have rated Southwest on momondo, with an average score of 8.0/10.

  • Alaska Airlines Flights From Santa Rosa to San Diego

    $139 is the best Alaska Airlines flight deal from Santa Rosa to San Diego found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $272, however, with flight time and availability significantly affecting the price. Alaska Airlines (7.9/10 from 12,765 user reviews) flies into San Diego from Santa Rosa 20 times in an average week so prices can vary.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
Coronado
El Cajon
National City
Julian
La Mesa
Poway
San Ysidro
Imperial Beach
Borrego Springs
Santee
Lemon Grove
Alpine

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Santa Rosa.

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

All flight searches from Santa Rosa to San Diego on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Santa Rosa to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

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