Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to San Francisco from $94

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:28 am - 3:48 pmONT  Ontario-STS Santa Rosa Sonoma County
6h 20m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
8:00 am - 3:29 pmSTS  Santa Rosa Sonoma County-ONT Ontario
7h 29m1 stop Phoenix Sky Harbor Intl
$177American Airlines
Wed, Jan 6 - Sat, Jan 9
Southwest Logo
12:00 pm - 9:25 pmONT  Ontario-STS Santa Rosa Sonoma County
9h 25m2 stops Sacramento Intl San Diego
Southwest Logo
12:10 pm - 8:00 pmSTS  Santa Rosa Sonoma County-ONT Ontario
7h 50m1 stop Denver Intl
$182Southwest
Wed, Jan 6 - Sat, Jan 9
Southwest Logo
12:00 pm - 9:25 pmONT  Ontario-STS Santa Rosa Sonoma County
9h 25m2 stops Sacramento Intl San Diego
Southwest Logo
7:00 am - 3:50 pmSTS  Santa Rosa Sonoma County-ONT Ontario
8h 50m2 stops Las Vegas Harry Reid Intl Sacramento Intl
$187Southwest
Wed, Jan 6 - Sat, Jan 9
Southwest Logo
8:40 am - 12:15 pmONT  Ontario-STS Santa Rosa Sonoma County
3h 35m1 stop Las Vegas Harry Reid Intl
Southwest Logo
6:45 am - 4:15 pmSTS  Santa Rosa Sonoma County-ONT Ontario
9h 30m2 stops San Diego Oakland
$188Southwest
Wed, Dec 9 - Mon, Dec 14
Southwest Logo
5:45 am - 12:15 pmONT  Ontario-STS Santa Rosa Sonoma County
6h 30m1 stop Las Vegas Harry Reid Intl
Southwest Logo
3:10 pm - 6:30 pmSTS  Santa Rosa Sonoma County-ONT Ontario
3h 20m1 stop Las Vegas Harry Reid Intl
$192Southwest
Wed, Dec 9 - Fri, Dec 11
Southwest Logo
1:30 pm - 9:30 pmONT  Ontario-STS Santa Rosa Sonoma County
8h 00m2 stops Las Vegas Harry Reid Intl San Diego
Southwest Logo
6:45 am - 4:15 pmSTS  Santa Rosa Sonoma County-ONT Ontario
9h 30m2 stops San Diego Oakland
$193Southwest
Wed, Dec 9 - Mon, Dec 14
Southwest Logo
5:25 pm - 9:25 pmONT  Ontario-STS Santa Rosa Sonoma County
4h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
7:20 am - 12:55 pmSTS  Santa Rosa Sonoma County-ONT Ontario
5h 35m1 stop Las Vegas Harry Reid Intl
$197Southwest
Mon, Mar 1 - Sat, Mar 6
Southwest Logo
8:40 am - 12:15 pmONT  Ontario-STS Santa Rosa Sonoma County
3h 35m1 stop Las Vegas Harry Reid Intl
Southwest Logo
3:00 pm - 8:40 pmSTS  Santa Rosa Sonoma County-ONT Ontario
5h 40m1 stop Las Vegas Harry Reid Intl
$197Southwest
Wed, Dec 9 - Mon, Dec 14
Alaska Airlines Logo
7:00 am - 5:50 pmONT  Ontario-STS Santa Rosa Sonoma County
10h 50m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
7:00 am - 3:20 pmSTS  Santa Rosa Sonoma County-ONT Ontario
8h 20m1 stop Seattle/Tacoma Intl
$483Alaska Airlines
Fri, Jan 29 - Sat, Jan 30
Alaska Airlines Logo
7:10 am - 5:50 pmONT  Ontario-STS Santa Rosa Sonoma County
10h 40m2 stops Portland Boise Air Term. Gowen Fld
Alaska Airlines Logo
8:10 am - 10:41 pmSTS  Santa Rosa Sonoma County-ONT Ontario
14h 31m2 stops Portland Seattle/Tacoma Intl
$491Alaska Airlines
Fri, Jan 29 - Sat, Jan 30

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

American Airlines flights from Ontario to Santa Rosa

Our best American Airlines deals on Ontario to Santa Rosa flight tickets
American Airlines
Jan 6
ONT9:28 amOntario
6h 20m
1 stop
STS3:48 pmSanta Rosa Sonoma County
Jan 9
STS8:00 amSanta Rosa Sonoma County
7h 29m
1 stop
ONT3:29 pmOntario
$177
American Airlines
Dec 5
ONT1:23 pmOntario
6h 07m
1 stop
STS7:30 pmSanta Rosa Sonoma County
Dec 7
STS1:18 pmSanta Rosa Sonoma County
4h 52m
1 stop
ONT6:10 pmOntario
$197
American Airlines
Nov 19
ONT4:25 pmOntario
7h 34m
1 stop
STS11:59 pmSanta Rosa Sonoma County
Nov 20
STS4:29 pmSanta Rosa Sonoma County
5h 23m
1 stop
ONT9:52 pmOntario
$247

Southwest flights from Ontario to Santa Rosa

Our best Southwest deals on Ontario to Santa Rosa flight tickets
Southwest
Jan 6
ONT12:00 pmOntario
9h 25m
2 stops
STS9:25 pmSanta Rosa Sonoma County
Jan 9
STS12:10 pmSanta Rosa Sonoma County
7h 50m
1 stop
ONT8:00 pmOntario
$182
Southwest
Jan 6
ONT12:00 pmOntario
9h 25m
2 stops
STS9:25 pmSanta Rosa Sonoma County
Jan 9
STS7:00 amSanta Rosa Sonoma County
8h 50m
2 stops
ONT3:50 pmOntario
$187
Southwest
Dec 9
ONT8:40 amOntario
3h 35m
1 stop
STS12:15 pmSanta Rosa Sonoma County
Dec 14
STS6:45 amSanta Rosa Sonoma County
9h 30m
2 stops
ONT4:15 pmOntario
$188

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 1/6

9:28 am-3:48 pm

1 stop6h 20m

Santa Rosa Sonoma County

Sat 1/9

8:00 am-3:29 pm

1 stop7h 29m

$177

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 1/6

12:00 pm-9:25 pm

2 stops9h 25m

Santa Rosa Sonoma County

Sat 1/9

12:10 pm-8:00 pm

1 stop7h 50m

$182

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 1/6

12:00 pm-9:25 pm

2 stops9h 25m

Santa Rosa Sonoma County

Sat 1/9

7:00 am-3:50 pm

2 stops8h 50m

$187

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 12/9

8:40 am-12:15 pm

1 stop3h 35m

Santa Rosa Sonoma County

Mon 12/14

6:45 am-4:15 pm

2 stops9h 30m

$188

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 12/9

5:45 am-12:15 pm

1 stop6h 30m

Santa Rosa Sonoma County

Fri 12/11

3:10 pm-6:30 pm

1 stop3h 20m

$192

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 12/9

1:30 pm-9:30 pm

2 stops8h 00m

Santa Rosa Sonoma County

Mon 12/14

6:45 am-4:15 pm

2 stops9h 30m

$193

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Mon 3/1

5:25 pm-9:25 pm

1 stop4h 00m

Santa Rosa Sonoma County

Sat 3/6

7:20 am-12:55 pm

1 stop5h 35m

$197
Quickest round-trip

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Wed 12/9

8:40 am-12:15 pm

1 stop3h 35m

Santa Rosa Sonoma County

Mon 12/14

3:00 pm-8:40 pm

1 stop5h 40m

$197

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Fri 1/29

7:00 am-5:50 pm

2 stops10h 50m

Santa Rosa Sonoma County

Sat 1/30

7:00 am-3:20 pm

1 stop8h 20m

$483

OntarioSanta Rosa

ONT Ontario - STS Santa Rosa Sonoma County

ONTSTS

Ontario

Fri 1/29

7:10 am-5:50 pm

2 stops10h 40m

Santa Rosa Sonoma County

Sat 1/30

8:10 am-10:41 pm

2 stops14h 31m

$491

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Francisco from

How to get the cheapest flight ticket from Ontario 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 February, then departing from Ontario during the month November is also very affordable. Most momondo users find prices during this month for around $127.

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 $263. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $347.

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

Our data shows that the cheapest Ontario to Santa Rosa flights are usually those with departure times in the morning. Our users have found flights to Santa Rosa in the morning for as low as $281. Flights at noon are often more expensive with an average ticket price of $327.

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

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

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

There are 2 cabin classes available to choose from on Ontario to Santa Rosa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 68% on your flight if you consider stops on a Ontario to Santa Rosa flight.

When to book flights from Ontario to Santa Rosa

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

Cheap Ontario to Santa Rosa (ONT to STS) flight deals and tips

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

Best Price Found

$94

Fastest flight time

3h 35m

Direct flights

None
The best one-way flight to Santa Rosa from Ontario in the past 72 hours is $94. The best round-trip flight deal from Ontario to Santa Rosa found on momondo in the last 72 hours is $177.
The fastest flight from Ontario to Santa Rosa takes 3h 35m
There are no direct flights from Ontario to Santa Rosa. There are no popular flight routes from Ontario to Santa Rosa.
Search flight deals

Frequently asked questions about flying from Ontario to Santa Rosa

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

    There are 413.2 mi between Ontario and Santa Rosa Sonoma County. In terms of flight time, this usually takes a little over 3h 35m.

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

    Prices for flights from Ontario Airport to Santa Rosa Sonoma County Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Santa Rosa Sonoma County Airport.

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

    The necessary travel and health documents for your Santa Rosa Sonoma County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Ontario to Santa Rosa

Compare and see reviews for airlines that fly from Ontario to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $117Free CancellationRating
7.9
13,135 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Ontario to Santa Rosa

    Alaska Airlines operates around 3 flights from Ontario to Santa Rosa every week. The average price of these flights found in the last 72 hours has been $250, but momondo users have found Alaska Airlines deals from Ontario to Santa Rosa from as low as $117 round-trip. Alaska Airlines has been scored 7.9/10 in 13,135 reviews.

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 Ontario to Santa Rosa?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Santa Rosa. Millions of users trust and use momondo every year so you are in good hands.

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

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

How can momondo help me find flights from Ontario 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 Ontario to Santa Rosa.

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

Yes momondo offers price alerts on flights to Santa Rosa from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 11/29
Sun 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States