Find flights
When to book
FAQs

Cheap flights from Ontario to San Luis Potosí, Mexico from C$ 688

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SLP
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ontario to San Luis Potosí

Keep the following information in mind while searching for Ontario to San Luis Potosí flight deals. Data was last updated 15 September 2025.

Round-trip from

C$ 688

Popular in

December

Cheapest in

October

Average price

C$ 844
United Airlines
  • United Airlines
  • 17/10-20/10
  • 3 total stops
  • 30h 49m total
  • Ontario to San Luis Potosí
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 382 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (C$ 120 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Ontario to San Luis Potosí

Cheapest flights from Ontario to San Luis Potosí
Explore the most affordable flight options available from Ontario to San Luis Potosí. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Fri 17/106:10 a.m.YYZ - SLP
1 stop6h 58mUnited Airlines
Mon 20/1011:51 a.m.SLP - YYZ
2 stops23h 51mUnited Airlines
Deal found 15/9C$ 688
Mon 13/1010:15 a.m.YYZ - SLP
2 stops26h 53mUnited Airlines
Mon 20/1011:51 a.m.SLP - YYZ
2 stops25h 55mUnited Airlines
Deal found 15/9C$ 728
Mon 13/106:49 a.m.YYZ - SLP
1 stop6h 20mAmerican Airlines
Mon 20/105:14 a.m.SLP - YYZ
1 stop15h 36mAmerican Airlines
Deal found 15/9C$ 794
Thu 18/129:52 a.m.YYZ - SLP
2 stops9h 43mDelta
Mon 5/16:14 a.m.SLP - YYZ
2 stops16h 57mDelta
Deal found 15/9C$ 1,428
Thu 18/126:10 a.m.YYZ - SLP
1 stop15h 44mUnited Airlines
Mon 5/112:49 p.m.SLP - YYZ
2 stops26h 50mUnited Airlines
Deal found 15/9C$ 1,521

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to San Luis Potosí 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 15 September 2025.
Use the filters below to find and compare flights from Ontario to San Luis Potosí that are best for you.

Fly from

Ontario

Fly to

San Luis Potosí

Route

Depart

Return

Price

TorontoSan Luis Potosí

YYZ - SLP

YYZSLP

Toronto Pearson Intl

Fri 17/10

6:10 a.m.-11:08 a.m.

1 stop6h 58m

San Luis Potosi

Mon 20/10

11:51 a.m.-1:42 p.m.

2 stops23h 51m

C$ 688

TorontoSan Luis Potosí

YYZ - SLP

YYZSLP

Toronto Pearson Intl

Mon 13/10

10:15 a.m.-11:08 a.m.

2 stops26h 53m

San Luis Potosi

Mon 20/10

11:51 a.m.-3:46 p.m.

2 stops25h 55m

C$ 728

TorontoSan Luis Potosí

YYZ - SLP

YYZSLP

Toronto Pearson Intl

Mon 13/10

6:49 a.m.-11:09 a.m.

1 stop6h 20m

San Luis Potosi

Mon 20/10

5:14 a.m.-10:50 p.m.

1 stop15h 36m

C$ 794

TorontoSan Luis Potosí

YYZ - SLP

YYZSLP

Toronto Pearson Intl

Thu 18/12

9:52 a.m.-6:35 p.m.

2 stops9h 43m

San Luis Potosi

Mon 5/1

6:14 a.m.-12:25 a.m.

2 stops17h 11m

C$ 1,428

TorontoSan Luis Potosí

YYZ - SLP

YYZSLP

Toronto Pearson Intl

Thu 18/12

6:10 a.m.-8:54 p.m.

1 stop15h 44m

San Luis Potosi

Mon 5/1

12:49 p.m.-2:20 p.m.

1 stop24h 31m

C$ 1,521

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

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

Have a flexible travel schedule? Discover the best time to fly to San Luis Potosí from Ontario 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 Ontario to San Luis Potosí

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

Find hourly flight availability from Ontario to San Luis Potosí. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to San Luis Potosí as you normally would.

How much does it cost to fly round-trip from Region of Ontario to San Luis Potosí?

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Luis Potosí. 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 into for flights to San Luis Potosí from Ontario?

    San Luis Potosi (SLP) is the airport you will fly into if you book a flight from Ontario to San Luis Potosí. It is only a 12.6 km journey from San Luis Potosi (SLP) to San Luis Potosí’s city centre.

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

    There are many flights that can get you from Region of Ontario to San Luis Potosí in 6h 58m. Fly via United Airlines to get the fastest option. There are 3082 km between Region of Ontario and San Luis Potosí.

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

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

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

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

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

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

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 Ontario to San Luis Potosí

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

Top 3 airlines flying from Ontario to San Luis Potosí

Discover the top 3 airlines that operate flights from Ontario to San Luis Potosí. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 666AverageC$ 809FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 704AverageC$ 821FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
AeromexicoCheapestC$ 735AverageC$ 816FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico 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 Ontario to San Luis Potosí?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to San Luis Potosí. 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 Ontario to San Luis Potosí?

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 San Luis Potosí from Ontario.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to San Luis Potosí, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Ontario to San Luis Potosí flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the 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.