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Cheap flights from Ontario to San Francisco from $332

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 5/25. 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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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
6:30 am - 5:30 pm
YYZ
-
MRY
14h 00m
1 stop
United Airlines Logo
1:51 pm - 9:54 am
MRY
-
YYZ
17h 03m
2 stops
$604United Airlines
Wed, Sep 16 - Mon, Sep 21
United Airlines Logo
10:45 am - 9:10 pm
YYZ
-
MRY
13h 25m
1 stop
United Airlines Logo
7:05 am - 9:54 am
MRY
-
YYZ
23h 49m
2 stops
$605United Airlines
Sat, Jul 11 - Sat, Jul 18
United Airlines Logo
10:45 am - 5:35 pm
YYZ
-
MRY
9h 50m
2 stops
United Airlines Logo
10:30 am - 11:59 pm
MRY
-
YYZ
10h 29m
2 stops
$607United Airlines
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
11:01 am - 10:33 pm
YYZ
-
MRY
14h 32m
2 stops
American Airlines Logo
7:03 pm - 12:32 pm
MRY
-
YYZ
14h 29m
2 stops
$616American Airlines
Thu, May 28 - Thu, Jun 4
United Airlines Logo
10:45 am - 11:47 pm
YYZ
-
MRY
16h 02m
2 stops
United Airlines Logo
5:00 am - 9:32 pm
MRY
-
YYZ
13h 32m
1 stop
$619United Airlines
Sat, Jun 13 - Wed, Jun 17
United Airlines Logo
10:45 am - 11:47 pm
YYZ
-
MRY
16h 02m
2 stops
United Airlines Logo
5:00 am - 9:32 pm
MRY
-
YYZ
13h 32m
1 stop
$620United Airlines
Sat, Jun 13 - Wed, Jun 17
United Airlines Logo
4:18 pm - 9:05 pm
YYZ
-
MRY
7h 47m
1 stop
United Airlines Logo
2:01 pm - 11:59 pm
MRY
-
YYZ
6h 58m
1 stop
$621United Airlines
Sat, May 16 - Sat, May 23
United Airlines Logo
11:00 am - 6:11 pm
YYZ
-
MRY
10h 11m
2 stops
United Airlines Logo
2:01 pm - 11:59 pm
MRY
-
YYZ
6h 58m
1 stop
$631United Airlines
Sat, May 16 - Sat, May 23
United Airlines Logo
10:45 am - 9:10 pm
YYZ
-
MRY
13h 25m
1 stop
United Airlines Logo
5:00 am - 9:32 pm
MRY
-
YYZ
13h 32m
1 stop
$635United Airlines
Mon, Jul 13 - Sat, Jul 18
Air Canada Logo
8:10 am - 5:30 pm
YUL
-
MRY
12h 20m
1 stop
Air Canada Logo
6:30 pm - 6:40 am
MRY
-
YUL
9h 10m
1 stop
$772Air Canada
Thu, Oct 1 - Mon, Oct 5

United Airlines flights from Region of Ontario to Monterey

Our best United Airlines deals on Region of Ontario to Monterey flight tickets
United Airlines
Sep 16
YYZ6:30 amToronto Pearson Intl
14h 00m
1 stop
MRY5:30 pmMonterey Regional
Sep 21
MRY1:51 pmMonterey Regional
17h 03m
2 stops
YYZ9:54 amToronto Pearson Intl
$604
United Airlines
Jul 11
YYZ10:45 amToronto Pearson Intl
13h 25m
1 stop
MRY9:10 pmMonterey Regional
Jul 18
MRY7:05 amMonterey Regional
23h 49m
2 stops
YYZ9:54 amToronto Pearson Intl
$605
United Airlines
Oct 1
YYZ10:45 amToronto Pearson Intl
9h 50m
2 stops
MRY5:35 pmMonterey Regional
Oct 5
MRY10:30 amMonterey Regional
10h 29m
2 stops
YYZ11:59 pmToronto Pearson Intl
$607

American Airlines flights from Region of Ontario to Monterey

Our best American Airlines deals on Region of Ontario to Monterey flight tickets
American Airlines
May 28
YYZ11:01 amToronto Pearson Intl
14h 32m
2 stops
MRY10:33 pmMonterey Regional
Jun 4
MRY7:03 pmMonterey Regional
14h 29m
2 stops
YYZ12:32 pmToronto Pearson Intl
$616
American Airlines
Jun 12
YYZ7:20 amToronto Pearson Intl
14h 03m
2 stops
MRY6:23 pmMonterey Regional
Jun 18
MRY7:03 pmMonterey Regional
20h 42m
2 stops
YYZ6:45 pmToronto Pearson Intl
$680
American Airlines
Jun 12
YYZ6:46 amToronto Pearson Intl
8h 09m
1 stop
MRY11:55 amMonterey Regional
Jun 17
MRY7:03 pmMonterey Regional
12h 56m
2 stops
YYZ10:59 amToronto Pearson Intl
$725

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 April 15, 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

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Wed 9/16

6:30 am-5:30 pm

1 stop14h 00m

Monterey Regional

Mon 9/21

1:51 pm-9:54 am

2 stops17h 03m

$604

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Sat 7/11

10:45 am-9:10 pm

1 stop13h 25m

Monterey Regional

Sat 7/18

7:05 am-9:54 am

2 stops23h 49m

$605

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Thu 10/1

10:45 am-5:35 pm

2 stops9h 50m

Monterey Regional

Mon 10/5

10:30 am-11:59 pm

2 stops10h 29m

$607

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Thu 5/28

11:01 am-10:33 pm

2 stops14h 32m

Monterey Regional

Thu 6/4

7:03 pm-12:32 pm

2 stops14h 29m

$616

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Sat 6/13

10:45 am-11:47 pm

2 stops16h 02m

Monterey Regional

Wed 6/17

5:00 am-9:32 pm

1 stop13h 32m

$619

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Sat 6/13

10:45 am-11:47 pm

2 stops16h 02m

Monterey Regional

Wed 6/17

5:00 am-9:32 pm

1 stop13h 32m

$620
Quickest round-trip

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Sat 5/16

4:18 pm-9:05 pm

1 stop7h 47m

Monterey Regional

Sat 5/23

2:01 pm-11:59 pm

1 stop6h 58m

$621

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Sat 5/16

11:00 am-6:11 pm

2 stops10h 11m

Monterey Regional

Sat 5/23

2:01 pm-11:59 pm

1 stop6h 58m

$631

TorontoMonterey

YYZ - MRY

YYZMRY

Toronto Pearson Intl

Mon 7/13

10:45 am-9:10 pm

1 stop13h 25m

Monterey Regional

Sat 7/18

5:00 am-9:32 pm

1 stop13h 32m

$635

MontrealMonterey

YUL - MRY

YULMRY

Montreal Pierre Elliott Trudeau Intl

Thu 10/1

8:10 am-5:30 pm

1 stop12h 20m

Monterey Regional

Mon 10/5

6:30 pm-6:40 am

1 stop9h 10m

$772

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 and Air Canada are the most popular carriers 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 45% 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 49m

Direct flights

None
The fastest flight from Region of Ontario to Monterey takes 7h 49m
There are no direct flights from Region of Ontario to Monterey. There are no popular flight routes from Region of Ontario to Monterey.
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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

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.
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