Find flights
When to book
FAQs

Cheap flights from San Luis Potosí, Mexico to Ontario from C$ 443

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
SLP — YYZ
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Luis Potosí to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from San Luis Potosí to Ontario
Explore the most affordable flight options available from San Luis Potosí to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Sat 30/53:10 p.m.
SLP
-
YYZ
2 stops25h 10m
Multiple Airlines
Sat 13/63:05 p.m.
YYZ
-
SLP
2 stops25h 05m
Multiple Airlines
Deal found 19/3C$ 626
Sun 31/53:10 p.m.
SLP
-
YYZ
2 stops25h 10m
Multiple Airlines
Sun 14/63:05 p.m.
YYZ
-
SLP
2 stops25h 05m
Multiple Airlines
Deal found 19/3C$ 717
Sun 7/611:45 a.m.
SLP
-
YUL
2 stops34h 28m
United Airlines
Wed 10/66:35 p.m.
YUL
-
SLP
2 stops26h 37m
United Airlines
Deal found 20/3C$ 798
Thu 10/912:20 p.m.
SLP
-
YUL
2 stops19h 25m
American Airlines
Wed 16/910:35 a.m.
YUL
-
SLP
2 stops26h 55m
American Airlines
Deal found 18/3C$ 833
Thu 16/411:45 a.m.
SLP
-
YYZ
1 stop24h 39m
United Airlines
Mon 20/46:10 a.m.
YYZ
-
SLP
1 stop6h 39m
United Airlines
Deal found 20/3C$ 851
Sat 18/411:45 a.m.
SLP
-
YYZ
1 stop8h 51m
United Airlines
Sat 5/126:10 a.m.
YYZ
-
SLP
1 stop15h 44m
United Airlines
Deal found 18/3C$ 883
Sun 7/68:30 a.m.
SLP
-
YUL
1 stop21h 00m
Aeromexico
Wed 10/611:01 a.m.
YUL
-
SLP
1 stop30h 24m
Aeromexico
Deal found 20/3C$ 1,018
Tue 23/67:12 a.m.
SLP
-
YXU
2 stops47h 40m
United Airlines
Fri 26/612:20 p.m.
YXU
-
SLP
2 stops48h 29m
United Airlines
Deal found 22/3C$ 1,060
Thu 10/99:32 a.m.
SLP
-
YUL
2 stops28h 58m
Multiple Airlines
Wed 16/99:10 a.m.
YUL
-
SLP
3 stops25h 52m
Multiple Airlines
Deal found 18/3C$ 1,067
Wed 20/57:12 a.m.
SLP
-
YUL
2 stops15h 01m
United Airlines
Thu 2/78:15 a.m.
YUL
-
SLP
2 stops28h 34m
United Airlines
Deal found 20/3C$ 1,174

Find flight deals from San Luis Potosí to Ontario

Keep the following information in mind while searching for San Luis Potosí to Ontario flight deals. Data was last updated 23 March 2026.

Round-trip from

C$ 626

One-way from

C$ 443

Popular in

August

Cheapest in

May

Average price

C$ 728
30/5-13/6
  • 30/5-13/6
  • 4 total stops
  • 50h 15m total
  • San Luis Potosí to Ontario
Search Deals
United Airlines
  • United Airlines
  • 23/7
  • 2 total stops
  • 13h 11m total
  • San Luis Potosí to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Luis Potosí to 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, Cheapflights users made 629,999 searches. Data last updated 23 March 2026.
Use the filters below to find and compare flights from San Luis Potosí to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Sun 7/6

11:45 a.m.-12:13 a.m.

2 stops34h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

6:35 p.m.-7:12 p.m.

2 stops26h 37m

C$ 798
Quickest round-trip

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Sun 31/5

7:12 a.m.-6:20 p.m.

1 stop9h 08m

Toronto Pearson Intl

Sun 14/6

9:20 a.m.-7:08 p.m.

1 stop11h 48m

C$ 804

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Sat 30/5

3:10 p.m.-6:20 p.m.

2 stops25h 10m

Toronto Pearson Intl

Sat 13/6

8:20 p.m.-9:35 a.m.

1 stop15h 15m

C$ 835

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 16/4

11:45 a.m.-2:24 p.m.

1 stop24h 39m

Toronto Pearson Intl

Mon 20/4

6:10 a.m.-10:49 a.m.

1 stop6h 39m

C$ 851

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Thu 10/9

12:20 p.m.-9:45 a.m.

2 stops19h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

3:45 p.m.-11:30 a.m.

1 stop21h 45m

C$ 970

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Thu 10/9

4:52 p.m.-7:30 a.m.

1 stop12h 38m

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

11:01 a.m.-8:28 p.m.

1 stop11h 27m

C$ 970

San Luis PotosíLondon

SLP - YXU

SLPYXU

San Luis Potosi

Tue 23/6

7:12 a.m.-8:52 a.m.

2 stops47h 40m

London

Fri 26/6

12:20 p.m.-10:49 a.m.

2 stops48h 29m

C$ 1,060

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Thu 10/9

9:32 a.m.-4:30 p.m.

2 stops28h 58m

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

9:10 a.m.-9:02 a.m.

3 stops25h 52m

C$ 1,067

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Wed 20/5

7:12 a.m.-12:13 a.m.

2 stops15h 01m

Montreal Pierre Elliott Trudeau Intl

Thu 2/7

8:15 a.m.-10:49 a.m.

2 stops28h 34m

C$ 1,174
Cheapest one-way
Quickest one-way

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 23/7

7:12 a.m.-10:23 p.m.

2 stops13h 11m

C$ 443

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

Sorted by cheapest first

Best time to book a flight from San Luis Potosí to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Luis Potosí with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Luis Potosí to Ontario

What is the cheapest month to book a flight from San Luis Potosí to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from San Luis Potosí to Region of Ontario (average of C$ 658). Flying from San Luis Potosí to Region of Ontario in June is currently the most expensive (average of C$ 1,001). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Luis Potosí to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Luis Potosí to Ontario?

    For a flight from San Luis Potosí to Ontario, you will be flying from San Luis Potosi. San Luis Potosi (SLP) is just 12.6 km from the centre of the city.

  • How long is the flight from San Luis Potosí to Region of Ontario?

    Airlines like United Airlines, American Airlines, and Aeromexico fly from San Luis Potosí to Region of Ontario in about 12h 38m. The time it takes to get you to your destination can typically vary by up to 21h 50m. There are 3563 km between San Luis Potosí and Region of Ontario. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from San Luis Potosí to Region of Ontario?

    The most popular flight routes from San Luis Potosí to Region of Ontario are San Luis Potosi - Montreal Pierre Elliott Trudeau Intl, San Luis Potosi - Toronto Pearson Intl and San Luis Potosi - London.

  • Can I find deals for flights from San Luis Potosí to Ontario that include hotel bookings?

    Yes. In addition to deals on San Luis Potosí to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Luis Potosí to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Luis Potosí to Ontario.

  • Can I find deals for business class flights from San Luis Potosí to Ontario?

    Yes. Cheapflights offers flight deals from San Luis Potosí to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Luis Potosí to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from San Luis Potosí to Region of Ontario (average of C$ 658). Flying from San Luis Potosí to Region of Ontario in June is currently the most expensive (average of C$ 1,001). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Luis Potosí to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
San Luis Potosí to Pierre Elliott Trudeau Intl flights
San Luis Potosí to Pearson Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Luis Potosí to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Luis Potosí to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Luis Potosí to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from San Luis Potosí.

Can Cheapflights find flights from San Luis Potosí to Ontario with no change fees?

Yes, we can. To see specific flights from San Luis Potosí to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from San Luis Potosí to Ontario become cheaper?

Of course! You can now track prices for flights from San Luis Potosí to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.