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Cheap flights from Santa Rosa to Ontario from $228

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 Ontario departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:17 pm - 3:00 pmSTS-YYZ
19h 43m2 stops
American Airlines Logo
6:25 pm - 3:47 pmYYZ-STS
24h 22m2 stops
$590American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
4:23 pm - 9:49 amSTS-YYZ
14h 26m2 stops
American Airlines Logo
6:20 pm - 3:53 pmYYZ-STS
24h 33m2 stops
$599American Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
American Airlines Logo
4:23 pm - 11:03 amSTS-YYZ
15h 40m2 stops
American Airlines Logo
5:13 pm - 12:06 pmYYZ-STS
21h 53m1 stop
$608American Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
American Airlines Logo
4:23 pm - 9:49 amSTS-YYZ
14h 26m2 stops
American Airlines Logo
6:00 am - 12:06 pmYYZ-STS
33h 06m2 stops
$614American Airlines
Find Deal
Mon, Nov 24 - Sat, Nov 29
Alaska Airlines Logo
7:00 pm - 10:40 amSTS-YYZ
12h 40m2 stops
Alaska Airlines Logo
4:45 pm - 9:51 pmYYZ-STS
8h 06m1 stop
$641Alaska Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
12:37 pm - 5:23 pmSTS-YYZ
25h 46m2 stops
American Airlines Logo
5:13 pm - 12:06 pmYYZ-STS
21h 53m1 stop
$661American Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 1
American Airlines Logo
12:37 pm - 11:54 amSTS-YYZ
20h 17m2 stops
American Airlines Logo
7:14 pm - 12:06 pmYYZ-STS
19h 52m2 stops
$666American Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 1
Alaska Airlines Logo
8:15 pm - 3:35 pmSTS-YYZ
16h 20m1 stop
Alaska Airlines Logo
4:45 pm - 1:29 pmYYZ-STS
23h 44m1 stop
$668Alaska Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 1
American Airlines Logo
4:23 pm - 10:17 amSTS-YYZ
14h 54m2 stops
American Airlines Logo
6:15 pm - 12:06 pmYYZ-STS
20h 51m2 stops
$695American Airlines
Find Deal
Sat, Nov 22 - Mon, Dec 1
American Airlines Logo
1:18 pm - 1:12 pmSTS-YYZ
20h 54m1 stop
American Airlines Logo
5:13 pm - 12:06 pmYYZ-STS
21h 53m1 stop
$703American Airlines
Find Deal
Wed, Nov 19 - Mon, Dec 1

American Airlines flights from Santa Rosa to Region of Ontario

Our best American Airlines deals on Santa Rosa to Region of Ontario flight tickets
American Airlines
Apr 7
STS4:17 pmSanta Rosa Sonoma County
19h 43m
2 stops
YYZ3:00 pmToronto Pearson Intl
Apr 8
YYZ6:25 pmToronto Pearson Intl
24h 22m
2 stops
STS3:47 pmSanta Rosa Sonoma County
$590
Find similar
American Airlines
Nov 24
STS4:23 pmSanta Rosa Sonoma County
14h 26m
2 stops
YYZ9:49 amToronto Pearson Intl
Dec 1
YYZ6:20 pmToronto Pearson Intl
24h 33m
2 stops
STS3:53 pmSanta Rosa Sonoma County
$599
Find similar
American Airlines
Nov 24
STS4:23 pmSanta Rosa Sonoma County
15h 40m
2 stops
YYZ11:03 amToronto Pearson Intl
Dec 1
YYZ5:13 pmToronto Pearson Intl
21h 53m
1 stop
STS12:06 pmSanta Rosa Sonoma County
$608
Find similar

Alaska Airlines flights from Santa Rosa to Region of Ontario

Our best Alaska Airlines deals on Santa Rosa to Region of Ontario flight tickets
Alaska Airlines
Apr 7
STS7:00 pmSanta Rosa Sonoma County
12h 40m
2 stops
YYZ10:40 amToronto Pearson Intl
Apr 8
YYZ4:45 pmToronto Pearson Intl
8h 06m
1 stop
STS9:51 pmSanta Rosa Sonoma County
$641
Find similar
Alaska Airlines
Nov 23
STS8:15 pmSanta Rosa Sonoma County
16h 20m
1 stop
YYZ3:35 pmToronto Pearson Intl
Dec 1
YYZ4:45 pmToronto Pearson Intl
23h 44m
1 stop
STS1:29 pmSanta Rosa Sonoma County
$668
Find similar
Alaska Airlines
Nov 25
STS8:15 pmSanta Rosa Sonoma County
16h 20m
1 stop
YYZ3:35 pmToronto Pearson Intl
Dec 1
YYZ4:45 pmToronto Pearson Intl
23h 44m
1 stop
STS1:29 pmSanta Rosa Sonoma County
$711
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Region of Ontario 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 November 4, 2025.
Use the filters below to find and compare flights from Santa Rosa to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Tue 4/7

4:17 pm-3:00 pm

2 stops19h 43m

Toronto Pearson Intl

Wed 4/8

6:25 pm-3:47 pm

2 stops24h 22m

$590

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Mon 11/24

4:23 pm-9:49 am

2 stops14h 26m

Toronto Pearson Intl

Mon 12/1

6:20 pm-3:53 pm

2 stops24h 33m

$599

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Mon 11/24

4:23 pm-11:03 am

2 stops15h 40m

Toronto Pearson Intl

Mon 12/1

5:13 pm-12:06 pm

1 stop21h 53m

$608

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Mon 11/24

4:23 pm-9:49 am

2 stops14h 26m

Toronto Pearson Intl

Sat 11/29

6:00 am-12:06 pm

2 stops33h 06m

$614

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Tue 4/7

7:00 pm-10:40 am

2 stops12h 40m

Toronto Pearson Intl

Wed 4/8

4:45 pm-9:51 pm

1 stop8h 06m

$641

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Sun 11/23

12:37 pm-5:23 pm

2 stops25h 46m

Toronto Pearson Intl

Mon 12/1

5:13 pm-12:06 pm

1 stop21h 53m

$661

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Sun 11/23

12:37 pm-11:54 am

2 stops20h 17m

Toronto Pearson Intl

Mon 12/1

7:14 pm-12:06 pm

2 stops19h 52m

$666

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Sun 11/23

8:15 pm-3:35 pm

1 stop16h 20m

Toronto Pearson Intl

Mon 12/1

4:45 pm-1:29 pm

1 stop23h 44m

$668

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Sat 11/22

4:23 pm-10:17 am

2 stops14h 54m

Toronto Pearson Intl

Mon 12/1

6:15 pm-12:06 pm

2 stops20h 51m

$695

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Wed 11/19

1:18 pm-1:12 pm

1 stop20h 54m

Toronto Pearson Intl

Mon 12/1

5:13 pm-12:06 pm

1 stop21h 53m

$703

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Ontario from

How to get the cheapest flight ticket from Santa Rosa to Region of Ontario

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 airline that flies from Santa Rosa Sonoma County to Ontario?

American Airlines is the most popular carrier operating from Santa Rosa Sonoma County to Ontario

What airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from Santa Rosa according to our data. Air Canada is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 8 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

Cheap Santa Rosa to Region of Ontario flight deals and tips

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

Direct flights

None
There are no direct flights from Santa Rosa to Region of Ontario. There are no popular flight routes from Santa Rosa to Region of Ontario.
Search flight deals

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

    Prices for flights from Santa Rosa Sonoma County Airport to Ontario were last updated today.

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

    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 Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The travel and health documents you'll need for your trip to Ontario 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 Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Ontario from Santa Rosa is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Ontario from Santa Rosa with this policy.

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

momondo helps you find the best flight between Santa Rosa and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Santa Rosa to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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