Find flights
When to book
FAQs

Cheap flights from Ontario to Key Largo

YYZ — MIA
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ontario to Key Largo

Popular in

August

Cheapest in

June

Average price

C$ 576
Highest demand for flights based on searches. 2% potential increase in price (C$ 17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Insights

Everything you need to know about your flight from Ontario to Key Largo

What is the cheapest time of day to fly from ON to KE9?

One of the essential ways to save on airfare from Region of Ontario to Key Largo is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 10% on airfare.

What is the cheapest day to fly from Region of Ontario to Key Largo?

Travelers seeking maximum savings on their Region of Ontario to Key Largo flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

  • What are the cheapest airlines to fly from Region of Ontario to Key Largo one-way?

    C$ 124 is the cheapest one-way deal found within the past few days, from Flair Airlines. You may also be able to find cheap deals on Porter Airlines and Air Transat, with prices starting from C$ 169 and C$ 194, respectively.

  • What are the most popular routes from Region of Ontario to Key Largo?

    The most popular route from Region of Ontario to Key Largo is Toronto Pearson Intl - Miami. You may also consider Montreal Pierre Elliott Trudeau Intl - Miami or Toronto Island - Miami.

  • What are the most reliable airlines from Region of Ontario to Key Largo?

    No one likes to see their flight delayed. When booking a flight from Region of Ontario to Key Largo consider choosing Qatar Airways (89%), Air Canada Rouge (83%) or Air Canada (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Region of Ontario to Key Largo?

    Looking at all options, your cheapest flight can be booked for C$ 222. While the most popular route (Toronto Pearson Intl - Miami) can be booked for C$ 410 on average, our data indicates C$ 581 when flying from Region of Ontario to Key Largo.

  • Can I find deals for flights from Ontario to Key Largo that include hotel bookings?

    Yes. In addition to deals on Ontario to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Key Largo?

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

  • Can I find deals for business class flights from Ontario to Key Largo?

    Yes. Cheapflights offers flight deals from Ontario to Key Largo 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

Alternative routes for Ontario to Key Largo

Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to Fort Lauderdale flights
Pearson Intl to Miami flights
Pearson Intl to Orlando flights
Pierre Elliott Trudeau Intl to Miami flights
Toronto Island to Fort Lauderdale flights
Toronto Island to Orlando flights
Pierre Elliott Trudeau Intl to Orlando flights
Toronto Island to Miami flights
Pearson Intl to Tampa flights
Ottawa to Fort Lauderdale flights
Pearson Intl to Fort Myers flights
Hamilton to Fort Lauderdale flights
Hamilton to Orlando flights
Québec City to Fort Lauderdale flights
Vancouver Intl to Orlando flights
Hamilton to Miami flights
Ottawa to Orlando flights
Vancouver Intl to Miami flights
Vancouver Intl to Fort Lauderdale flights
Calgary to Orlando flights
Pierre Elliott Trudeau Intl to Tampa flights
Toronto Island to Tampa flights
Toronto Island to Fort Myers flights
Halifax to Orlando flights
Québec City to Miami flights
Québec City to Orlando flights
Calgary to Fort Lauderdale flights
Abbotsford to Orlando flights
Pearson Intl to Orlando Sanford Intl flights
Edmonton to Orlando flights
Pierre Elliott Trudeau Intl to Fort Myers flights
Halifax to Fort Lauderdale flights
Ottawa to Miami flights
Winnipeg to Orlando flights
Abbotsford to Miami flights
Pearson Intl to Sarasota flights
Hamilton to Tampa flights
Calgary to Miami flights
Halifax to Tampa flights
Pierre Elliott Trudeau Intl to Orlando Sanford Intl flights
Edmonton to Miami flights
Edmonton to Fort Lauderdale flights
Hamilton to Fort Myers flights
Halifax to Miami flights
Ottawa to Tampa flights
Winnipeg to Fort Lauderdale flights
Abbotsford to Fort Lauderdale flights

Top 9 airlines flying from Ontario to Key Largo

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 120AverageC$ 631FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Flair AirlinesCheapestC$ 156AverageC$ 352FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Air TransatCheapestC$ 169AverageC$ 493FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 170AverageC$ 529FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 179AverageC$ 468FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 204AverageC$ 432FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 204AverageC$ 634FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 290AverageC$ 526FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JazzCheapestC$ 789AverageC$ 806FlexibilityNo cancel feeOn-timeN/A
Search Jazz flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Key Largo?

Cheapflights helps you search for flights from Ontario to Key Largo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Key Largo?

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 Key Largo from Ontario.

Can Cheapflights find flights from Ontario to Key Largo with no change fees?

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

Can Cheapflights notify me if prices for flights from Ontario to Key Largo become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Key Largo 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.