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Cheap flights from San Luis Potosí, Mexico to Ontario from C$ 426

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 24/12. Fares are subject to change and may not be available on all flights or dates of travel.
SLP — YYZ
17 Jan — 24 Jan1
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 18 December 2025.

Wed 24/1212:49 p.m.SLP - YUL
2 stops25h 27mUnited Airlines
Wed 31/126:00 a.m.YUL - SLP
2 stops15h 54mUnited Airlines
Deal found 16/12C$ 777
Sun 28/126:00 a.m.SLP - YUL
2 stops38h 17mUnited Airlines
Wed 21/12:13 p.m.YUL - SLP
2 stops31h 47mUnited Airlines
Deal found 17/12C$ 803
Tue 23/126:00 a.m.SLP - YYZ
1 stop15h 37mUnited Airlines
Fri 2/16:10 a.m.YYZ - SLP
1 stop15h 44mUnited Airlines
Deal found 17/12C$ 853
Wed 24/126:02 a.m.SLP - YUL
1 stop24h 23mAeromexico
Wed 31/1210:05 a.m.YUL - SLP
1 stop28h 41mAeromexico
Deal found 16/12C$ 1,959
Sun 28/126:20 a.m.SLP - YUL
2 stops15h 19mAmerican Airlines
Wed 21/112:59 p.m.YUL - SLP
3 stops11h 41mAmerican Airlines
Deal found 17/12C$ 3,590

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 18 December 2025.

Round-trip from

C$ 697

One-way from

C$ 426

Popular in

August

Cheapest in

May

Average price

C$ 938
American Airlines
  • American Airlines
  • 31/3-7/4
  • 4 total stops
  • 42h 55m total
  • San Luis Potosí to Ontario
Search Deals
24/12
  • 24/12
  • 1 total stop
  • 8h 36m total
  • San Luis Potosí to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 2025.
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

Tue 31/3

12:29 p.m.-1:45 p.m.

2 stops23h 16m

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

5:45 p.m.-11:24 a.m.

2 stops19h 39m

C$ 697

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Sat 31/1

6:00 a.m.-2:00 p.m.

2 stops31h 00m

Montreal Pierre Elliott Trudeau Intl

Sat 7/2

6:00 a.m.-9:00 p.m.

2 stops16h 00m

C$ 754

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 29/1

12:49 p.m.-4:02 p.m.

2 stops26h 13m

Toronto Pearson Intl

Tue 3/2

2:57 p.m.-11:49 a.m.

2 stops21h 52m

C$ 769

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 22/1

12:49 p.m.-11:59 p.m.

2 stops10h 10m

Toronto Pearson Intl

Mon 26/1

9:00 a.m.-9:00 p.m.

2 stops13h 00m

C$ 770

San Luis PotosíToronto

SLP - YYZ

SLPYYZ

San Luis Potosi

Thu 29/1

7:00 a.m.-4:19 p.m.

1 stop8h 19m

Toronto Pearson Intl

Tue 3/2

6:14 a.m.-1:31 p.m.

1 stop8h 17m

C$ 774

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Sat 24/1

6:00 a.m.-9:17 p.m.

2 stops14h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

9:15 a.m.-11:49 a.m.

2 stops27h 34m

C$ 774

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Sun 28/12

6:00 a.m.-9:17 p.m.

2 stops38h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

2:13 p.m.-9:00 p.m.

2 stops31h 47m

C$ 803

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Sat 24/1

12:52 p.m.-7:25 a.m.

1 stop17h 33m

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

10:05 a.m.-11:59 p.m.

1 stop14h 54m

C$ 825

San Luis PotosíMontreal

SLP - YUL

SLPYUL

San Luis Potosi

Tue 31/3

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

2 stops36h 14m

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

5:00 p.m.-10:49 a.m.

1 stop19h 49m

C$ 849

San Luis PotosíLondon

SLP - YXU

SLPYXU

San Luis Potosi

Thu 22/1

12:49 p.m.-8:46 a.m.

2 stops42h 57m

London

Mon 26/1

5:40 p.m.-11:49 a.m.

2 stops43h 09m

C$ 1,026

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/12

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$ 661). Flying from San Luis Potosí to Region of Ontario in April is currently the most expensive (average of C$ 802). 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.

What is the cheapest time of day to fly from SLP to ON?

Find hourly flight availability from San Luis Potosí to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2025.

When flying from San Luis Potosí to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 34% versus a flight at noon.

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 American Airlines and United Airlines fly from San Luis Potosí to Region of Ontario in about 23h 16m. The time it takes to get you to your destination can typically vary by up to 7h 44m. 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$ 661). Flying from San Luis Potosí to Region of Ontario in April is currently the most expensive (average of C$ 802). 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 Pierre Elliott Trudeau Intl flights
San Luis Potosí to Pearson Intl flights

Fly with Cheapflights

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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.

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