Cheap flights from Ontario to Key West from C$ 211
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Key West departing on 14/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your resultsTrusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Key West
Cheap round-trip flights
Cheap one-way flights
United Airlines flights from Region of Ontario to Key West
Our best United Airlines deals on Region of Ontario to Key West flight tickets
Delta flights from Region of Ontario to Key West
Our best Delta deals on Region of Ontario to Key West flight tickets
See travel insights to Key West from
How to get the cheapest flight ticket from Region of Ontario to Key West
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Key West?
In general, May is the cheapest month to fly from Region of Ontario to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 674. If you don’t want to visit Key West in May, then you should wait until January to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 737.
What is the cheapest day to depart on your flight to Key West?
According to our data, Wednesday is the cheapest day to fly to Key West from Region of Ontario. The lowest ticket price found for a Wednesday departure recently was C$ 838. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Key West on Saturday is C$ 959.
What is the cheapest airline that flies from Ontario to Key West?
United Airlines is the most popular carrier operating from Ontario to Key West
Which airlines fly to Key West?
WestJet, American Airlines and United Airlines are the top three most popular airlines that fly to Key West from Region of Ontario according to our data. WestJet is the first choice among our users, with 58% of people opting to fly with this airline when travelling to Key West. Keep in mind that there are 4 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.
Cheap Region of Ontario to Key West flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Key West
When did momondo last update prices for flights from Ontario to Key West Airport?
Prices for flights from Ontario to Key West Airport are updated daily.
How many operators does momondo search for flights from Ontario to Key West Airport?
As of May 2025, there are 3 operators available to choose from for flights from Ontario to Key West Airport.
How old do you have to be to fly from Ontario to Key West Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Region of Ontario to Key West
Compare and see reviews for airlines that fly from Region of Ontario to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 411 | Free Cancellation | Rating 8.0 7,934 reviews | |||
| PriceFrom C$ 677 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom C$ 700 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom C$ 785 | Free Cancellation | Rating 7.2 2,826 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Key West?
Finding the right flight to Key West from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Key West quick and easy, saving you time and money.
Can I find flights from Ontario to Key West with flexible booking policies on momondo?
All flight searches from Ontario to Key West on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ontario to Key West?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Ontario.
I’m not ready to book a flight from Ontario to Key West right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ontario to Key West now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Key West and let you know when they change.