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Cheap flights from Ontario to San Francisco from $217

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Francisco departing on 8/26. 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

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:10 am - 5:16 pm
YUL
-
MRY
14h 06m
2 stops
United Airlines Logo
6:45 pm - 2:40 pm
MRY
-
YUL
16h 55m
2 stops
$433United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
4:00 pm - 9:40 am
YYZ
-
MRY
20h 40m
2 stops
United Airlines Logo
2:00 pm - 3:12 pm
MRY
-
YYZ
22h 12m
2 stops
$477United Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
7:40 pm - 9:40 am
YYZ
-
MRY
17h 00m
2 stops
United Airlines Logo
6:30 am - 4:09 pm
MRY
-
YYZ
6h 39m
1 stop
$480United Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
7:40 pm - 9:40 am
YYZ
-
MRY
17h 00m
2 stops
United Airlines Logo
6:30 am - 4:09 pm
MRY
-
YYZ
6h 39m
1 stop
$481United Airlines
Mon, Dec 7 - Wed, Dec 9
Air Canada Logo
8:10 am - 5:16 pm
YUL
-
MRY
12h 06m
1 stop
Air Canada Logo
8:00 am - 8:48 pm
MRY
-
YUL
9h 48m
1 stop
$492Air Canada
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
5:16 pm - 9:37 pm
YYZ
-
MRY
7h 21m
1 stop
United Airlines Logo
2:00 pm - 6:45 am
MRY
-
YYZ
13h 45m
1 stop
$516United Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
6:30 am - 9:37 pm
YYZ
-
MRY
18h 07m
1 stop
United Airlines Logo
6:30 am - 4:09 pm
MRY
-
YYZ
6h 39m
1 stop
$520United Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
5:16 pm - 9:37 pm
YYZ
-
MRY
7h 21m
1 stop
United Airlines Logo
2:00 pm - 3:12 pm
MRY
-
YYZ
22h 12m
2 stops
$522United Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
11:00 am - 9:37 pm
YUL
-
MRY
13h 37m
2 stops
United Airlines Logo
6:50 pm - 3:02 pm
MRY
-
YUL
17h 12m
2 stops
$522United Airlines
Wed, Jan 13 - Sat, Jan 16
Air Canada Logo
2:55 pm - 9:35 pm
YYZ
-
MRY
9h 40m
2 stops
Air Canada Logo
6:30 am - 10:44 pm
MRY
-
YYZ
13h 14m
2 stops
$599Air Canada
Mon, Dec 7 - Wed, Dec 9

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Air Canada flights from Region of Ontario to Monterey

Our best Air Canada deals on Region of Ontario to Monterey flight tickets
Air Canada
Aug 27
YUL8:10 amMontreal Pierre Elliott Trudeau Intl
12h 06m
1 stop
MRY5:16 pmMonterey Regional
Aug 31
MRY8:00 amMonterey Regional
9h 48m
1 stop
YUL8:48 pmMontreal Pierre Elliott Trudeau Intl
$492
Air Canada
Dec 7
YYZ2:55 pmToronto Pearson Intl
9h 40m
2 stops
MRY9:35 pmMonterey Regional
Dec 9
MRY6:30 amMonterey Regional
13h 14m
2 stops
YYZ10:44 pmToronto Pearson Intl
$599
Air Canada
Aug 27
YUL8:10 amMontreal Pierre Elliott Trudeau Intl
12h 06m
1 stop
MRY5:16 pmMonterey Regional
Aug 31
MRY8:00 amMonterey Regional
9h 48m
1 stop
YUL8:48 pmMontreal Pierre Elliott Trudeau Intl
$608

United Airlines flights from Region of Ontario to Monterey

Our best United Airlines deals on Region of Ontario to Monterey flight tickets
United Airlines
Aug 27
YUL6:10 amMontreal Pierre Elliott Trudeau Intl
14h 06m
2 stops
MRY5:16 pmMonterey Regional
Aug 31
MRY6:45 pmMonterey Regional
16h 55m
2 stops
YUL2:40 pmMontreal Pierre Elliott Trudeau Intl
$433
United Airlines
Dec 7
YYZ4:00 pmToronto Pearson Intl
20h 40m
2 stops
MRY9:40 amMonterey Regional
Dec 9
MRY2:00 pmMonterey Regional
22h 12m
2 stops
YYZ3:12 pmToronto Pearson Intl
$477
United Airlines
Dec 7
YYZ7:40 pmToronto Pearson Intl
17h 00m
2 stops
MRY9:40 amMonterey Regional
Dec 9
MRY6:30 amMonterey Regional
6h 39m
1 stop
YYZ4:09 pmToronto Pearson Intl
$480

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Monterey 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 July 17, 2026.
Use the filters below to find and compare flights from Ontario to Monterey that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealMonterey

YUL - MRY

YULMRY

Montreal Pierre Elliott Trudeau Intl

Thu 8/27

6:10 am-5:16 pm

2 stops14h 06m

Monterey Regional

Mon 8/31

6:45 pm-2:40 pm

2 stops16h 55m

$433

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

4:00 pm-9:40 am

2 stops20h 40m

Monterey Regional

Wed 12/9

2:00 pm-3:12 pm

2 stops22h 12m

$477

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

7:40 pm-9:40 am

2 stops17h 00m

Monterey Regional

Wed 12/9

6:30 am-4:09 pm

1 stop6h 39m

$480

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

7:40 pm-9:40 am

2 stops17h 00m

Monterey Regional

Wed 12/9

6:30 am-4:09 pm

1 stop6h 39m

$481

MontrealMonterey

YUL - MRY

YULMRY

Montreal Pierre Elliott Trudeau Intl

Thu 8/27

8:10 am-5:16 pm

1 stop12h 06m

Monterey Regional

Mon 8/31

8:00 am-8:48 pm

1 stop9h 48m

$492
Quickest round-trip

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

5:16 pm-9:37 pm

1 stop7h 21m

Monterey Regional

Wed 12/9

2:00 pm-6:45 am

1 stop13h 45m

$516

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

6:30 am-9:37 pm

1 stop18h 07m

Monterey Regional

Wed 12/9

6:30 am-4:09 pm

1 stop6h 39m

$520

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

5:16 pm-9:37 pm

1 stop7h 21m

Monterey Regional

Wed 12/9

2:00 pm-3:12 pm

2 stops22h 12m

$522

MontrealMonterey

YUL - MRY

YULMRY

Montreal Pierre Elliott Trudeau Intl

Wed 1/13

11:00 am-9:37 pm

2 stops13h 37m

Monterey Regional

Sat 1/16

6:50 pm-3:02 pm

2 stops17h 12m

$522

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 12/7

2:55 pm-9:35 pm

2 stops9h 40m

Monterey Regional

Wed 12/9

6:30 am-10:44 pm

2 stops13h 14m

$599

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 Region of Ontario to Monterey

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 Ontario to Monterey Regional?

United Airlines is the most popular carrier operating from Ontario to Monterey Regional

What airlines fly to Monterey?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Monterey from Region of Ontario according to our data. Air Canada is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Monterey. Keep in mind that there are 7 different airlines that fly to Monterey on a routine basis, so you have a few additional options to choose from.

Cheap Region of Ontario to Monterey flight deals and tips

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

Fastest flight time

7h 21m

Direct flights

None
The fastest flight from Region of Ontario to Monterey takes 7h 21m
There are no direct flights from Region of Ontario to Monterey. There are no popular flight routes from Region of Ontario to Monterey.
Search flight deals

Frequently asked questions about flying from Ontario to Monterey

  • When did momondo last update prices for flights from Ontario to Monterey Regional Airport?

    Prices for flights from Ontario to Monterey Regional Airport were last updated today.

  • How old do you have to be to fly from Ontario to Monterey Regional 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 Ontario to Monterey Regional Airport.

  • What documentation or ID do you need to fly to Monterey Regional Airport?

    The necessary travel and health documents for your Monterey Regional 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.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Monterey for you.

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

Yes. momondo allows you to filter the results for Ontario to Monterey flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Monterey?

Once all potential Ontario to Monterey 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 Ontario to Monterey right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Monterey, momondo offers a useful price alert feature which will track prices for flights to Monterey from Ontario and alert you when they change.

An easier way to manage your Monterey trip

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Sun 8/16
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