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Cheap flights from San Luis Potosí, Mexico to Ontario from C$ 402

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
SLP — YYZ
6 Mar — 13 Mar1
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 4 February 2026.

Fri 10/47:12 a.m.
SLP
-
YUL
2 stops36h 14m
United Airlines
Mon 13/44:55 p.m.
YUL
-
SLP
2 stops19h 54m
United Airlines
Deal found 1/2C$ 723
Tue 26/511:45 a.m.
SLP
-
YYZ
1 stop8h 46m
United Airlines
Sat 6/67:40 p.m.
YYZ
-
SLP
2 stops17h 09m
United Airlines
Deal found 4/2C$ 729
Sun 28/67:12 a.m.
SLP
-
YYZ
2 stops26h 42m
United Airlines
Fri 24/75:15 p.m.
YYZ
-
SLP
2 stops19h 34m
United Airlines
Deal found 3/2C$ 754
Thu 5/212:49 p.m.
SLP
-
YYZ
1 stop24h 31m
United Airlines
Mon 9/27:30 a.m.
YYZ
-
SLP
2 stops14h 30m
United Airlines
Deal found 1/2C$ 789
Wed 18/311:49 a.m.
SLP
-
YYZ
2 stops31h 29m
United Airlines
Mon 23/36:10 a.m.
YYZ
-
SLP
1 stop15h 50m
United Airlines
Deal found 4/2C$ 795
Wed 18/312:25 p.m.
SLP
-
YYZ
1 stop8h 14m
American Airlines
Mon 23/35:14 p.m.
YYZ
-
SLP
1 stop20h 21m
American Airlines
Deal found 4/2C$ 802
Thu 19/312:25 p.m.
SLP
-
YYZ
1 stop8h 14m
American Airlines
Mon 23/36:10 a.m.
YYZ
-
SLP
1 stop7h 25m
American Airlines
Deal found 4/2C$ 855
Thu 19/37:14 p.m.
SLP
-
YYZ
2 stops35h 08m
WestJet
Mon 23/31:30 p.m.
YYZ
-
SLP
2 stops20h 22m
WestJet
Deal found 4/2C$ 893
Wed 20/53:10 p.m.
SLP
-
YUL
2 stops31h 10m
Multiple Airlines
Thu 2/76:45 a.m.
YUL
-
SLP
2 stops14h 20m
Multiple Airlines
Deal found 4/2C$ 900
Thu 26/212:49 p.m.
SLP
-
YXU
2 stops27h 16m
United Airlines
Mon 2/35:10 a.m.
YXU
-
SLP
2 stops31h 39m
United Airlines
Deal found 31/1C$ 1,042
Wed 20/56:10 a.m.
SLP
-
YUL
2 stops15h 47m
Delta
Thu 2/77:00 a.m.
YUL
-
SLP
1 stop11h 00m
Delta
Deal found 2/2C$ 1,084

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 4 February 2026.

Round-trip from

C$ 723

One-way from

C$ 402

Popular in

August

Cheapest in

May

Average price

C$ 712
United Airlines
  • United Airlines
  • 10/4-13/4
  • 4 total stops
  • 56h 08m total
  • San Luis Potosí to Ontario
Search Deals
United Airlines
  • United Airlines
  • 24/3
  • 2 total stops
  • 25h 13m total
  • San Luis Potosí to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 4 February 2026.
Use the filters below to find and compare flights from San Luis Potosí to Ontario that are best for you.

Fly from

San Luis Potosí

Fly to

Ontario

Route

Depart

Return

Price

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Fri 10/4

7:12 a.m.-9:26 p.m.

2 stops36h 14m

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

4:55 p.m.-10:49 a.m.

2 stops19h 54m

C$ 723

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Tue 26/5

7:12 a.m.-10:31 p.m.

1 stop13h 19m

Toronto Pearson Intl

Sat 6/6

6:10 a.m.-7:12 p.m.

1 stop15h 02m

C$ 729

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Sun 28/6

7:12 a.m.-11:54 a.m.

2 stops26h 42m

Toronto Pearson Intl

Fri 24/7

5:15 p.m.-10:49 a.m.

2 stops19h 34m

C$ 754

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Wed 18/3

11:49 a.m.-9:18 p.m.

2 stops31h 29m

Toronto Pearson Intl

Mon 23/3

6:10 a.m.-8:00 p.m.

1 stop15h 50m

C$ 795

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Wed 18/3

12:25 p.m.-10:39 p.m.

1 stop8h 14m

Toronto Pearson Intl

Mon 23/3

5:14 p.m.-11:35 a.m.

1 stop20h 21m

C$ 802

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 19/3

12:25 p.m.-10:39 p.m.

1 stop8h 14m

Toronto Pearson Intl

Mon 23/3

6:10 a.m.-11:35 a.m.

1 stop7h 25m

C$ 855

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 19/3

7:14 p.m.-8:22 a.m.

2 stops35h 08m

Toronto Pearson Intl

Mon 23/3

1:30 p.m.-7:52 a.m.

2 stops20h 22m

C$ 893

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Wed 20/5

3:10 p.m.-12:20 a.m.

2 stops31h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 2/7

6:45 a.m.-7:05 p.m.

2 stops14h 20m

C$ 900

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Tue 26/5

2:53 p.m.-4:55 p.m.

3 stops24h 02m

Toronto Pearson Intl

Sat 6/6

12:40 p.m.-7:05 p.m.

3 stops32h 25m

C$ 982

San Luis PotosíLondon

SLP - YXU

SLPYXU

San Luis Potosi

Thu 26/2

12:49 p.m.-5:05 p.m.

2 stops27h 16m

London

Mon 2/3

5:10 a.m.-11:49 a.m.

2 stops31h 39m

C$ 1,042

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 19 results
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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$ 656). Flying from San Luis Potosí to Region of Ontario in April is currently the most expensive (average of C$ 789). 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 fly from San Luis Potosí to Region of Ontario in about 36h 14m. The time it takes to get you to your destination can typically vary by up to . There are 3563 km between San Luis Potosí and Region of Ontario.

  • 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 - Toronto Pearson Intl, San Luis Potosi - Montreal Pierre Elliott Trudeau 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$ 656). Flying from San Luis Potosí to Region of Ontario in April is currently the most expensive (average of C$ 789). 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

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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 Pearson Intl flights
San Luis Potosí to Pierre Elliott Trudeau Intl flights

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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?

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