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Cheap flights from San Diego to Ontario from C$ 153

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Ontario departing on 19/9. 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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Find the cheapest flights from San Diego to Ontario

Cheap round-trip flights

Logo
8:25 a.m. - 7:45 p.m.SAN-YYZ
8h 20m1 stop
Logo
9:45 a.m. - 6:37 p.m.YYZ-SAN
11h 52m1 stop
C$ 354
Find Deal
Thu, 4 Sep - Wed, 10 Sep
Logo
5:59 p.m. - 6:20 a.m.SAN-YYZ
9h 21m1 stop
Logo
9:45 a.m. - 6:24 p.m.YYZ-SAN
11h 39m1 stop
C$ 360
Find Deal
Sat, 11 Oct - Wed, 22 Oct
Logo
7:01 p.m. - 7:45 p.m.SAN-YYZ
21h 44m1 stop
Logo
9:45 a.m. - 8:29 a.m.YYZ-SAN
25h 44m1 stop
C$ 362
Find Deal
Wed, 3 Sep - Wed, 10 Sep
WestJet Logo
11:15 a.m. - 12:41 a.m.SAN-YHM
10h 26m1 stop
WestJet Logo
6:00 a.m. - 10:30 a.m.YHM-SAN
31h 30m1 stop
C$ 478WestJet
Find Deal
Thu, 21 Aug - Sat, 23 Aug
United Airlines Logo
8:11 p.m. - 8:16 a.m.SAN-YUL
9h 05m1 stop
United Airlines Logo
11:23 a.m. - 7:09 p.m.YUL-SAN
10h 46m1 stop
C$ 484United Airlines
Find Deal
Mon, 25 Aug - Tue, 26 Aug
United Airlines Logo
7:21 p.m. - 3:01 p.m.SAN-YUL
16h 40m2 stops
United Airlines Logo
6:30 p.m. - 12:15 a.m.YUL-SAN
8h 45m1 stop
C$ 497United Airlines
Find Deal
Mon, 25 Aug - Tue, 26 Aug
WestJet Logo
2:05 p.m. - 5:25 a.m.SAN-YOW
12h 20m2 stops
WestJet Logo
6:00 a.m. - 1:20 p.m.YOW-SAN
10h 20m1 stop
C$ 506WestJet
Find Deal
Tue, 26 Aug - Wed, 17 Sep
Air Canada Logo
6:10 p.m. - 11:23 a.m.SAN-YUL
14h 13m2 stops
Air Canada Logo
6:00 a.m. - 11:38 a.m.YUL-SAN
8h 38m1 stop
C$ 539Air Canada
Find Deal
Fri, 21 Nov - Fri, 28 Nov
Air Canada Logo
4:40 p.m. - 7:01 a.m.SAN-YUL
11h 21m1 stop
Air Canada Logo
8:25 a.m. - 3:50 p.m.YUL-SAN
10h 25m1 stop
C$ 540Air Canada
Find Deal
Wed, 15 Oct - Tue, 21 Oct
Delta Logo
10:37 a.m. - 11:53 p.m.SAN-YUL
10h 16m1 stop
Delta Logo
6:00 a.m. - 1:58 p.m.YUL-SAN
10h 58m1 stop
C$ 573Delta
Find Deal
Wed, 3 Sep - Mon, 8 Sep

WestJet flights from San Diego to Region of Ontario

Our best WestJet deals on San Diego to Region of Ontario flight tickets
WestJet
21 Aug
SAN11:15 a.m.San Diego
10h 26m
1 stop
YHM12:41 a.m.Hamilton
23 Aug
YHM6:00 a.m.Hamilton
31h 30m
1 stop
SAN10:30 a.m.San Diego
C$ 478
Find similar
WestJet
26 Aug
SAN2:05 p.m.San Diego
12h 20m
2 stops
YOW5:25 a.m.Ottawa
17 Sep
YOW6:00 a.m.Ottawa
10h 20m
1 stop
SAN1:20 p.m.San Diego
C$ 506
Find similar
WestJet
19 Aug
SAN2:05 p.m.San Diego
13h 47m
1 stop
YYZ6:52 a.m.Toronto Pearson Intl
26 Aug
YYZ8:00 p.m.Toronto Pearson Intl
20h 20m
1 stop
SAN1:20 p.m.San Diego
C$ 522
Find similar

Air Canada flights from San Diego to Region of Ontario

Our best Air Canada deals on San Diego to Region of Ontario flight tickets
Air Canada
21 Nov
SAN6:10 p.m.San Diego
14h 13m
2 stops
YUL11:23 a.m.Montreal Pierre Elliott Trudeau Intl
28 Nov
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
8h 38m
1 stop
SAN11:38 a.m.San Diego
C$ 539
Find similar
Air Canada
15 Oct
SAN4:40 p.m.San Diego
11h 21m
1 stop
YUL7:01 a.m.Montreal Pierre Elliott Trudeau Intl
21 Oct
YUL8:25 a.m.Montreal Pierre Elliott Trudeau Intl
10h 25m
1 stop
SAN3:50 p.m.San Diego
C$ 540
Find similar
Air Canada
21 Nov
SAN12:25 p.m.San Diego
7h 58m
1 stop
YUL11:23 p.m.Montreal Pierre Elliott Trudeau Intl
28 Nov
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
8h 38m
1 stop
SAN11:38 a.m.San Diego
C$ 554
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego 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 96,600 searches. Data last updated 5 August 2025.
Use the filters below to find and compare flights from San Diego to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 4/9

8:25 a.m.-7:45 p.m.

1 stop8h 20m

Toronto Pearson Intl

Wed 10/9

9:45 a.m.-6:37 p.m.

1 stop11h 52m

C$ 354

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 11/10

5:59 p.m.-6:20 a.m.

1 stop9h 21m

Toronto Pearson Intl

Wed 22/10

9:45 a.m.-6:24 p.m.

1 stop11h 39m

C$ 360

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 3/9

7:01 p.m.-7:45 p.m.

1 stop21h 44m

Toronto Pearson Intl

Wed 10/9

9:45 a.m.-8:29 a.m.

1 stop25h 44m

C$ 362

San DiegoHamilton

SAN - YHM

SANYHM

San Diego

Thu 21/8

11:15 a.m.-12:41 a.m.

1 stop10h 26m

Hamilton

Sat 23/8

6:00 a.m.-10:30 a.m.

1 stop31h 30m

C$ 478

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Mon 25/8

8:11 p.m.-8:16 a.m.

1 stop9h 05m

Montreal Pierre Elliott Trudeau Intl

Tue 26/8

11:23 a.m.-7:09 p.m.

1 stop10h 46m

C$ 484

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Mon 25/8

7:21 p.m.-3:01 p.m.

2 stops16h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 26/8

6:30 p.m.-12:15 a.m.

1 stop8h 45m

C$ 497

San DiegoOttawa

SAN - YOW

SANYOW

San Diego

Tue 26/8

2:05 p.m.-5:25 a.m.

2 stops12h 20m

Ottawa

Wed 17/9

6:00 a.m.-1:20 p.m.

1 stop10h 20m

C$ 506

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Fri 21/11

6:10 p.m.-11:23 a.m.

2 stops14h 13m

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

6:00 a.m.-11:38 a.m.

1 stop8h 38m

C$ 539

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Wed 15/10

4:40 p.m.-7:01 a.m.

1 stop11h 21m

Montreal Pierre Elliott Trudeau Intl

Tue 21/10

8:25 a.m.-3:50 p.m.

1 stop10h 25m

C$ 540

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Wed 3/9

10:37 a.m.-11:53 p.m.

1 stop10h 16m

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

6:00 a.m.-1:58 p.m.

1 stop10h 58m

C$ 573

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 Ontario from

How to get the cheapest flight ticket from San Diego 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 month to fly to Region of Ontario?

In general, January is the cheapest month to fly from San Diego to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 368. If you are unable to visit Region of Ontario during the month of January, then departing from San Diego during the month April is also very affordable. Most momondo users find prices during this month for around C$ 373.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from San Diego to Region of Ontario is on a Tuesday. Travellers who choose to depart for Region of Ontario on a Tuesday will often find tickets for as low as C$ 293. The most expensive day to fly to Region of Ontario is Saturday, with ticket prices averaging around C$ 602.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is at noon. Flights from San Diego to Region of Ontario during this time can be as low as C$ 371. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 453 on average. Flights to Region of Ontario from San Diego in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Diego to Ontario flight route?

Fly from San Diego to Toronto Pearson Intl for the best San Diego - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 553 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from San Diego for as low as C$ 424 on momondo.

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

There are 3 cabin classes available to choose from on San Diego to Ontario 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 San Diego to Region of Ontario flights?

You could potentially save up to 3% on your flight if you consider stops on a San Diego to Region of Ontario flight.

Cheap San Diego to Region of Ontario flight deals and tips

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

Best price found

C$ 153

Fastest flight time

4h 51m

Direct flights

Every day

Airports in Region of Ontario

6 airports
The best one-way flight to Region of Ontario from San Diego in the past 72 hours is C$ 153. The best round-trip flight deal from San Diego to Region of Ontario found on momondo in the last 72 hours is C$ 354.
The fastest flight from San Diego to Region of Ontario takes 4h 51m
Direct flights go from San Diego to Region of Ontario every day.
There are 6 airports near Region of Ontario: Ottawa (YOW), Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Region of Waterloo Intl (YKF), Toronto Pearson Intl (YYZ), Toronto Island (YTZ), Hamilton (YHM)
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  • When did momondo last update prices for flights from San Diego Airport to Ontario?

    Prices for flights from San Diego Airport to Ontario were last updated today.

  • How many operators does momondo search for flights from San Diego Airport to Ontario?

  • How old do you have to be to fly from San Diego Airport to Ontario?

    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 San Diego 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.

  • What is the most popular plane model from San Diego to Region of Ontario?

Best airlines flying from San Diego to Region of Ontario

Compare and see reviews for airlines that fly from San Diego to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom C$ 254Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
Porter AirlinesPriceFrom C$ 288Free CancellationRating
8.0
322 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 420Free CancellationRating
7.1
9,890 reviews
Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Ontario. momondo saves you time and could save you money on your trip.

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

Flights from San Diego to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Ontario from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Ontario from San Diego. 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 Region of Ontario 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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Find better results for your trip to Ontario

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